128-462: John Ball Zoo is located on the west side of the city of Grand Rapids, Michigan , United States. The John Ball Zoo is situated on the ravines and bluffs along the west edge of the property. The zoo houses more than 2,000 individual animals representing over 200 different species and is a significant regional attraction. With the Zoo School and Wildlife Conservation Fund, the zoo gives something back to
256-412: A bitumen binder, which is frequently used for road surfaces , and polymer concretes that use polymers as a binder. Concrete is distinct from mortar . Whereas concrete is itself a building material, mortar is a bonding agent that typically holds bricks , tiles and other masonry units together. Grout is another material associated with concrete and cement. It does not contain coarse aggregates and
384-532: A theater , a band shell, playgrounds , ball fields, trails , and the zoo . City commission records provide the first mention of animals on the property in 1891, when there was a debate about whether city money should be used to purchase more animals to add to the existing wounded and orphaned animals. During the Great Depression , the zoo fell on hard times. Most of the collection was given away to other zoos. The buffalo and deer were butchered to help feed
512-421: A "heritage village" made up of several well-preserved 19th-century buildings, including a log cabin, schoolhouse, and barn. The nature center is also home to Blandford School, a highly selective environmental education program for sixth graders from the metropolitan region, which is run by Grand Rapids Public Schools and serves as a feeder school for City High-Middle School . At 264 acres (107 ha), Blandford
640-433: A French structural and civil engineer . Concrete components or structures are compressed by tendon cables during, or after, their fabrication in order to strengthen them against tensile forces developing when put in service. Freyssinet patented the technique on 2 October 1928. Concrete is an artificial composite material , comprising a matrix of cementitious binder (typically Portland cement paste or asphalt ) and
768-620: A Hungarian native educated in Catholic institutions in Austria, arrived, presiding over the Catholic mission in the area until his death in 1852. That year, Campau, Rix Robinson, Rev. Slater, and the husband of Chief Noonday's daughter, Meccissininni, traveled to Washington, D.C. to speak about the purchase of Odawa land on the west side of the river with President Andrew Jackson . Jackson was originally unimpressed with Meccissininni, though Meccissininni, who often acquired white customs, asked Jackson for
896-452: A cementitious material forms a cement paste by the process of hydration. The cement paste glues the aggregate together, fills voids within it, and makes it flow more freely. As stated by Abrams' law , a lower water-to-cement ratio yields a stronger, more durable concrete, whereas more water gives a freer-flowing concrete with a higher slump . The hydration of cement involves many concurrent reactions. The process involves polymerization ,
1024-400: A concrete component—and become a part of the binder for the aggregate. Fly ash and slag can enhance some properties of concrete such as fresh properties and durability. Alternatively, other materials can also be used as a concrete binder: the most prevalent substitute is asphalt , which is used as the binder in asphalt concrete . Admixtures are added to modify the cure rate or properties of
1152-434: A dispersed phase or "filler" of aggregate (typically a rocky material, loose stones, and sand). The binder "glues" the filler together to form a synthetic conglomerate . Many types of concrete are available, determined by the formulations of binders and the types of aggregate used to suit the application of the engineered material. These variables determine strength and density, as well as chemical and thermal resistance of
1280-491: A four month long general strike on April 19, 1911. Much of the public, the mayor, the press and the Catholic diocese supported the strike, believing that the unwillingness of business leaders to negotiate was unjust. Skilled and unskilled factory labor was mainly Dutch (60 percent) and Polish (25 percent), primarily immigrants. According to the 1911 Immigration Commission report, the Dutch had an average of 8 percent higher wages than
1408-452: A greater degree of fracture resistance even in seismically active environments. Roman concrete is significantly more resistant to erosion by seawater than modern concrete; it used pyroclastic materials which react with seawater to form Al- tobermorite crystals over time. The use of hot mixing and the presence of lime clasts are thought to give the concrete a self-healing ability, where cracks that form become filled with calcite that prevents
SECTION 10
#17328633762861536-546: A key event in the history of architecture termed the Roman architectural revolution , freed Roman construction from the restrictions of stone and brick materials. It enabled revolutionary new designs in terms of both structural complexity and dimension. The Colosseum in Rome was built largely of concrete, and the Pantheon has the world's largest unreinforced concrete dome. Concrete, as
1664-415: A large aggregate that is too large for the size of the formwork, or which has too few smaller aggregate grades to serve to fill the gaps between the larger grades, or using too little or too much sand for the same reason, or using too little water, or too much cement, or even using jagged crushed stone instead of smoother round aggregate such as pebbles. Any combination of these factors and others may result in
1792-461: A large type of industrial facility called a concrete plant , or often a batch plant. The usual method of placement is casting in formwork , which holds the mix in shape until it has set enough to hold its shape unaided. Concrete plants come in two main types, ready-mix plants and central mix plants. A ready-mix plant blends all of the solid ingredients, while a central mix does the same but adds water. A central-mix plant offers more precise control of
1920-468: A minor dispute, workers were inspired to form labor unions ; workers requested furniture companies to increase wages , fewer working hours, the creation of collective bargaining and the institution of a minimum wage to replace piece work . The furniture businesses refused to respond with unions as they believed that any meeting represented recognition of unions. Workers in Grand Rapids then began
2048-469: A mixture of calcium silicates ( alite , belite ), aluminates and ferrites —compounds, which will react with water. Portland cement and similar materials are made by heating limestone (a source of calcium) with clay or shale (a source of silicon, aluminium and iron) and grinding this product (called clinker ) with a source of sulfate (most commonly gypsum ). Cement kilns are extremely large, complex, and inherently dusty industrial installations. Of
2176-468: A new $ 75-100 million master plan for the zoo was made involving all 140 acres (57 ha) of the zoo and property. Besides the existing camels , African veld , chimps , petting zoo, and animal hospital exhibits, it reworks the whole zoo. The new plan for the zoo features a system of streams named "Grand Rivers of the World" that would connect the zoo to the property surrounding the zoo. On April 27, 2007,
2304-414: A new cafe eating area outside of it. Also done at the same time was a new bald eagle aviary . The Mokomboso Valley Chimpanzee Exhibit opened in 2001. From 2000 to 2003, controversy arose over idea of moving the zoo further into the flatlands of the property for an elephant exhibit. It pitted the zoo and zoo society against the neighbors. The neighbors tried to get the city of Grand Rapids to designate
2432-486: A number of 'Close Encounters' guests can book for an additional cost, including visiting with a red panda , feeding a hippo , or interacting with a sloth . John Ball Zoo School is a sixth grade only magnet school for the Grand Rapids Public Schools . Each year, sixty students are selected for the school. The school teaches the normal Grand Rapids Public Schools curriculum but with a specialization using
2560-405: A number of manufactured aggregates, including air-cooled blast furnace slag and bottom ash are also permitted. The size distribution of the aggregate determines how much binder is required. Aggregate with a very even size distribution has the biggest gaps whereas adding aggregate with smaller particles tends to fill these gaps. The binder must fill the gaps between the aggregate as well as paste
2688-565: A part of mailing addresses in Kent County. The quadrants are NE (northeast), NW (northwest), SE (southeast), and SW (southwest). Fulton Street serves as the north–south dividing line, while Division Avenue serves as the east–west dividing line separating these quadrants. According to the United States Census Bureau , the city has a total area of 45.27 square miles (117.25 km ), of which, 44.40 square miles (115.00 km ) of it
SECTION 20
#17328633762862816-403: A pump failure also failed. In August 2012, an inclined railway was opened at the zoo. A train of three cars linked together provides a four-minute ride to the upper areas of the park. The zoo calls it a funicular, but technically it is in the category of inclined elevator since there are not two vehicles (or trains in this case) that counterbalance each other. In either case the configuration as
2944-556: A retail destination for the region, hosting four department stores: Herpolsheimer's ( Lazarus ), Jacobson's , Steketee's (founded in 1862), and Wurzburg's. In 1945, Grand Rapids became the first city in the United States to add fluoride to its drinking water. National home furnishing conferences were held in Grand Rapids for about seventy-five years, concluding in the 1960s. By that time, the furniture-making industry had largely shifted to North Carolina . As with many older cities in
3072-424: A semi-liquid slurry (paste) that can be shaped, typically by pouring it into a form. The concrete solidifies and hardens through a chemical process called hydration . The water reacts with the cement, which bonds the other components together, creating a robust, stone-like material. Other cementitious materials, such as fly ash and slag cement , are sometimes added—either pre-blended with the cement or directly as
3200-410: A similar suit to the one the president was wearing. While later wearing his suit that was made similar to Jackson's, Meccissininni also unknowingly imitated Jackson's hat, placing a piece of weed in it, which impressed Jackson since it symbolized mourning the death of his wife. John Ball , representing a group of New York land speculators, bypassed Detroit for a better deal in Grand Rapids traveling to
3328-493: A simple, fast way of getting a basic idea of the properties of the finished concrete without having to perform testing in advance. Various governing bodies (such as British Standards ) define nominal mix ratios into a number of grades, usually ranging from lower compressive strength to higher compressive strength. The grades usually indicate the 28-day cure strength. Thorough mixing is essential to produce uniform, high-quality concrete. Separate paste mixing has shown that
3456-461: A small empire in the regions of southern Syria and northern Jordan from the 4th century BC. They discovered the advantages of hydraulic lime , with some self-cementing properties, by 700 BC. They built kilns to supply mortar for the construction of rubble masonry houses, concrete floors, and underground waterproof cisterns . They kept the cisterns secret as these enabled the Nabataeans to thrive in
3584-508: A three-car train rather than one car makes it an unusual example. Most animals at John Ball Zoo were born in another zoo . Few of the animals are taken from the wild. Almost all the wild animals are at the zoo because they sustained injuries and can no longer live in their natural habitat. In 2004, the zoo added a Komodo dragon named Precious. During 2005, the zoo created an Australian walk-through exhibit that featured wallabies and budgies . The wallabies, if they want to, can come out in
3712-422: A typical summer. The average temperature of the area is 49 °F (9 °C). The highest temperature in the area was recorded on July 13, 1936, at 108 °F (42 °C), and the lowest was recorded on February 13–14, 1899, at −24 °F (−31 °C). During an average year, sunshine occurs in 46% of the daylight hours. On 138 nights, the temperature dips to below 32 °F (0 °C). On average, 9.2 days
3840-409: A variety of tooled processes performed. The hydration process is exothermic , which means ambient temperature plays a significant role in how long it takes concrete to set. Often, additives (such as pozzolans or superplasticizers ) are included in the mixture to improve the physical properties of the wet mix, delay or accelerate the curing time, or otherwise change the finished material. Most concrete
3968-412: A year have temperatures that meet or exceed the 90 °F (32 °C) mark, and 5.6 days a year have lows that are 0 °F (−18 °C) or colder. The coldest maximum temperature on record was −6 °F (−21 °C) in 1899, whereas the most recent subzero Fahrenheit daily maximum was −2 °F (−19 °C) in 1994. During the reference period of 1991 to 2020, the coldest daily maximum on average
John Ball Zoological Garden - Misplaced Pages Continue
4096-554: Is a city in and county seat of Kent County, Michigan , United States. At the 2020 census , the city had a population of 198,893, making it the second-most populous city in Michigan, after Detroit . Grand Rapids is the central city of the Grand Rapids metropolitan area , which has a population of 1,162,950 and a combined statistical area population of 1,502,552. Located 161 miles (259 km) northwest of Detroit, Grand Rapids
4224-499: Is also known as "Beer City USA". Due to the prominence of the Grand River, many local businesses and civic organizations use the moniker "River City" in their names. The city and surrounding communities are economically diverse, based in the health care , information technology , automotive , aviation , and consumer goods manufacturing industries, among others. Grand Rapids was the childhood home of U.S. President Gerald Ford , who
4352-589: Is buried with his wife Betty on the grounds of the Gerald R. Ford Presidential Museum in the city. The city's Gerald R. Ford International Airport and Gerald R. Ford Freeway are named after him. After the French established territories in Michigan, Jesuit missionaries and traders traveled down Lake Michigan and its tributaries. In 1806, white trader Joseph La Framboise and his Métis wife, Madeline La Framboise , traveled by canoe from Mackinac Island and established
4480-468: Is flat and had been covered with cement". "The floors were cement, in some places hard, but, by long exposure, broken, and now crumbling under the feet." "But throughout the wall was solid, and consisting of large stones imbedded in mortar, almost as hard as rock." Small-scale production of concrete-like materials was pioneered by the Nabatean traders who occupied and controlled a series of oases and developed
4608-406: Is land and 0.87 square miles (2.25 km ) is water. Grand Rapids has a humid continental climate ( Köppen Dfa ), with very warm and humid summers, cold and snowy winters, and short and mild springs and autumns. Even though it is in the middle of the continent, the city experiences some maritime effects due to its location east of Lake Michigan, including a high number of cloudy days during
4736-426: Is mixed with dry Portland cement and water , the mixture forms a fluid slurry that is easily poured and molded into shape. The cement reacts with the water through a process called concrete hydration that hardens it over several hours to form a hard matrix that binds the materials together into a durable stone-like material that has many uses. This time allows concrete to not only be cast in forms, but also to have
4864-633: Is one of the largest urban nature centers in the United States. As of the 2010 census , there were 188,036 people, 72,126 households, and 41,015 families residing in the city. The population density was 4,235.1 inhabitants per square mile (1,635.2/km ). There were 80,619 housing units at an average density of 1,815.7 per square mile (701.0/km ). The city's racial makeup was 64.6% White (59.0% Non-Hispanic White ), 20.9% African American , 0.7% Native American , 1.9% Asian , 0.1% Pacific Islander , 7.7% from other races , and 4.2% from two or more races. Hispanic or Latino residents of any race were 15.6% of
4992-566: Is poured with reinforcing materials (such as steel rebar ) embedded to provide tensile strength , yielding reinforced concrete . In the past, lime -based cement binders, such as lime putty, were often used but sometimes with other hydraulic cements , (water resistant) such as a calcium aluminate cement or with Portland cement to form Portland cement concrete (named for its visual resemblance to Portland stone ). Many other non-cementitious types of concrete exist with other methods of binding aggregate together, including asphalt concrete with
5120-485: Is situated along the Grand River approximately 25 miles (40 km) east of Lake Michigan , it is the economic and cultural hub of West Michigan . A historic furniture manufacturing center, Grand Rapids is home to five of the world's leading office furniture companies and is nicknamed "Furniture City". As a result of the numerous micro and craft breweries, many with notable reputations nationally and globally, Grand Rapids
5248-559: Is then blended with aggregates and any remaining batch water and final mixing is completed in conventional concrete mixing equipment. Workability is the ability of a fresh (plastic) concrete mix to fill the form/mold properly with the desired work (pouring, pumping, spreading, tamping, vibration) and without reducing the concrete's quality. Workability depends on water content, aggregate (shape and size distribution), cementitious content and age (level of hydration ) and can be modified by adding chemical admixtures, like superplasticizer. Raising
John Ball Zoological Garden - Misplaced Pages Continue
5376-562: Is usually either pourable or thixotropic , and is used to fill gaps between masonry components or coarse aggregate which has already been put in place. Some methods of concrete manufacture and repair involve pumping grout into the gaps to make up a solid mass in situ . The word concrete comes from the Latin word " concretus " (meaning compact or condensed), the perfect passive participle of " concrescere ", from " con -" (together) and " crescere " (to grow). Concrete floors were found in
5504-399: Is usually reinforced with materials that are strong in tension, typically steel rebar . The mix design depends on the type of structure being built, how the concrete is mixed and delivered, and how it is placed to form the structure. Portland cement is the most common type of cement in general usage. It is a basic ingredient of concrete, mortar , and many plasters . It consists of
5632-476: The Grand Rapids Public Museum . In October 1870, Grand Rapids became a desired location for immigrants, with about 120 Swedes arriving in the United States to travel and create a "colony" in the area in one week. During the second half of the nineteenth century, the city became a major lumbering center, processing timber harvested in the region. Logs were floated down the Grand River to be milled in
5760-519: The JW Marriott Grand Rapids , the first JW Marriott Hotel in the Midwest. It is themed from cityscapes of Grand Rapids' sister cities: Omihachiman, Japan; Bielsko-Biała, Poland; Perugia, Italy; Ga District, Ghana; and Zapopan, Mexico. When the hotel opened, Amway Hotel corporation hired photographer Dan Watts to travel to each of the sister cities and photograph them for the property. Each floor of
5888-739: The Panic of 1873 . In 1880, the country's first hydro-electric generator was put to use on the city's west side. Due to its flourishing furniture industry, Grand Rapids began being recognized as "Furniture City". Grand Rapids was also an early center for the automobile industry , as the Austin Automobile Company operated there from 1901 until 1921. Furniture companies included the William A. Berkey Company and its successors, Baker Furniture Company , Williams-Kimp, and Widdicomb Furniture Company . The furniture industry began to grow significantly into
6016-480: The construction industry , whose demand is ever growing with greater impacts on raw material extraction, waste generation and landfill practices. Concrete production is the process of mixing together the various ingredients—water, aggregate, cement, and any additives—to produce concrete. Concrete production is time-sensitive. Once the ingredients are mixed, workers must put the concrete in place before it hardens. In modern usage, most concrete production takes place in
6144-475: The 1830s. Ancestors of these people included not only English colonists but people of mixed ethnic Dutch, Mohawk , French Canadian, and French Huguenot descent from the colonial period in New York. However, after 1837, the area saw poor times, with many of the French returning to their places of origin, with poverty hitting the area for the next few years. The first Grand Rapids newspaper, The Grand River Times ,
6272-471: The 1980s and 1990s. According to city government data, Grand Rapids has 37 distinct neighborhoods: Grand Rapids developed on the banks of the Grand River , where there was once a set of rapids, at an altitude of 610 feet (186 m) above sea level . Ships could navigate on the river up to this fall line, stopping because of the rapids. The river valley is flat and narrow, surrounded by steep hills and bluffs. The terrain becomes more rolling hills away from
6400-461: The Commissioners refused to grant" of which Joseph La Framboise received 1,000 dollars immediately and 200 dollars a year, for life. Madeline La Framboise retired the trading post to Rix Robinson in 1821 and returned to Mackinac. That year, Grand Rapids was described as being the home of an Odawa village of about 50 to 60 huts on the north side of the river near the 5th Ward, with Kewkishkam being
6528-465: The February record high of 73 °F (23 °C), which was recorded on February 27, 2024. In April 1956, the western and northern portions of the city and its suburbs were hit by a violent tornado which locally produced F5 damage and killed 18 people. With the Grand River flowing through the center of Grand Rapids, the city has been prone to floods. From March 25 to 29, 1904, more than one-half of
SECTION 50
#17328633762866656-639: The Grand River Valley, in hopes of evangelizing them. In 1821, the Council of Three Fires signed the first Treaty of Chicago , ceding to the United States all lands in Michigan Territory south of the Grand River, except for several small reservations, and required a native to prepare land in the area to establish a mission. The treaty also included "One hundred thousand dollars to satisfy sundry individuals, in behalf of whom reservations were asked, which
6784-441: The Grand River valley. Lincoln purchased land in what is now known as Grandville , while Campau became perhaps the most important settler when he bought 72 acres (291,000 m ) from the federal government for $ 90 and named his tract Grand Rapids. Over time, it developed as today's main downtown business district. In the spring of 1833, Campau sold to Joel Guild, who traveled from New York, a plot of land for $ 25.00, with Guild building
6912-451: The Grand River, though some of his followers believed that this was a wrestling match between the two that Slater won. Slater then erected the first settler structures in Grand Rapids, a log cabin for himself and a log schoolhouse. In 1825, McCoy returned and established a missionary station. He represented the settlers who began arriving from Ohio, New York and New England, the Yankee states of
7040-593: The Northern Tier. Shortly after, Detroit-born Louis Campau , known as the official founder of Grand Rapids, was convinced by fur trader William Brewster, who was in a rivalry with the American Fur Company, to travel to Grand Rapids and establish trade there. In 1826, Campau built his cabin, trading post, and blacksmith shop on the south bank of the Grand River near the rapids, stating the Native Americans in
7168-627: The Poles even when they did the same work. The pay difference was based on seniority and not ethnicity, but given that the Dutch had arrived earlier, seniority was linked to ethnicity. Ultimately, the Christian Reformed Church – where the majority of Dutch striking workers congregated – and the Fountain Street Church – led opposition to the strike, which resulted in its end on August 19, 1911. The strike spurred substantial changes to
7296-504: The Romans knew it, was a new and revolutionary material. Laid in the shape of arches , vaults and domes , it quickly hardened into a rigid mass, free from many of the internal thrusts and strains that troubled the builders of similar structures in stone or brick. Modern tests show that opus caementicium had as much compressive strength as modern Portland-cement concrete (c. 200 kg/cm [20 MPa; 2,800 psi]). However, due to
7424-558: The United States, retail in the city suffered as the population moved to suburbs in the postwar era, enabled in part by federal subsidies for highway construction. The Grand Rapids suburbs began to develop rapidly in the 1950s and 1960s. For example, Wyoming saw rapid growth following the opening of retail outlets such as Rogers Plaza and Wyoming Village Mall on 28th Street , with some developments built so quickly that they were finished without functioning utilities. Consolidation of department stores occurred in Grand Rapids and nationally in
7552-639: The absence of reinforcement, its tensile strength was far lower than modern reinforced concrete , and its mode of application also differed: Modern structural concrete differs from Roman concrete in two important details. First, its mix consistency is fluid and homogeneous, allowing it to be poured into forms rather than requiring hand-layering together with the placement of aggregate, which, in Roman practice, often consisted of rubble . Second, integral reinforcing steel gives modern concrete assemblies great strength in tension, whereas Roman concrete could depend only upon
7680-448: The area were "friendly and peaceable". Campau returned to Detroit , then returned a year later with his wife and $ 5,000 of trade goods to trade with the Odawa and Ojibwa, with the only currency being fur. Campau's younger brother Touissant would often assist him with trade and other tasks at hand. Lucius Lyon , a Yankee Protestant who would later become a rival to Campau, was contracted by
7808-553: The area, returned to Grand Rapids to purchase the rest of the prime land and called his plot the Village of Kent. When Lyon and his partner N. O. Sergeant returned after their purchase, they arrived along with a posse of men carrying shovels and picks, intending to build a mill race . The group arrived to the music of a bugle which startled the settlement, with Chief Noonday offering Campau assistance to drive back Lyon's posse believing they were invaders. Also that year, Rev. Andrew Vizoisky,
SECTION 60
#17328633762867936-578: The city and shipped via the Great Lakes. The city became a center of fine wood products as well. By the end of the century, it was established as the premier furniture-manufacturing city of the United States. It was the Centennial Exposition of 1876 in Philadelphia that brought attention to Grand Rapids' furniture on the national stage, providing a new growing industry to help the city recover from
8064-479: The city of Grand Rapids' area totaled 10.5 square miles (27 km ). Through the 1850s, the land containing forty-six Indian mounds located on the west side between Bridge Street and the Grand River to the south were sold by the United States government, with the mounds being destroyed to fill low-lying land in the area while the Native American artifacts contained within were taken or sold to museums, including
8192-525: The city's southeast side, is 104 acres (42 ha). It is home to over 44 acres (18 ha) of public-access nature trails, a 60-acre (24 ha), restricted-access wildlife preserve, as well as the Bunker Interpretive Center, which hosts university classes and educational programs for the wider community. The Blandford Nature Center, located on the city's northwest side, opened in 1968 and contains extensive nature trails, an animal hospital, and
8320-558: The city, river and surrounding area. The Pantlind Hotel's original architects, Warren & Wetmore, were inspired by the work of the Scottish neoclassical architect Robert Adam . In its prime, the hotel was rated as one of the top ten hotels in the US. The hotel features several restaurants well known in Grand Rapids. The hotel is owned by Amway Hotel Collection, a subsidiary of Amway's holding company Alticor . Other prominent large buildings include
8448-481: The community and world as a whole. The zoo is an accredited member of the Association of Zoos and Aquariums , and was the first zoo in Michigan to receive accreditation. The original 40 acres (16 ha) was donated to the city by noted pioneer and explorer John Ball upon his death in 1884. Shortly after, another 100 acres (40 ha) was added and this marked the beginning of additional amenities, including ponds,
8576-526: The concrete at the time of batching/mixing. (See § Production below.) The common types of admixtures are as follows: Inorganic materials that have pozzolanic or latent hydraulic properties, these very fine-grained materials are added to the concrete mix to improve the properties of concrete (mineral admixtures), or as a replacement for Portland cement (blended cements). Products which incorporate limestone , fly ash , blast furnace slag , and other useful materials with pozzolanic properties into
8704-399: The concrete can cause the initially placed material to begin to set before the next batch is added on top. This creates a horizontal plane of weakness called a cold joint between the two batches. Once the mix is where it should be, the curing process must be controlled to ensure that the concrete attains the desired attributes. During concrete preparation, various technical details may affect
8832-461: The concrete quality. Central mix plants must be close to the work site where the concrete will be used, since hydration begins at the plant. A concrete plant consists of large hoppers for storage of various ingredients like cement, storage for bulk ingredients like aggregate and water, mechanisms for the addition of various additives and amendments, machinery to accurately weigh, move, and mix some or all of those ingredients, and facilities to dispense
8960-477: The crack from spreading. The widespread use of concrete in many Roman structures ensured that many survive to the present day. The Baths of Caracalla in Rome are just one example. Many Roman aqueducts and bridges, such as the magnificent Pont du Gard in southern France, have masonry cladding on a concrete core, as does the dome of the Pantheon . After the Roman Empire, the use of burned lime and pozzolana
9088-554: The desert. Some of these structures survive to this day. In the Ancient Egyptian and later Roman eras, builders discovered that adding volcanic ash to lime allowed the mix to set underwater. They discovered the pozzolanic reaction . The Romans used concrete extensively from 300 BC to AD 476. During the Roman Empire, Roman concrete (or opus caementicium ) was made from quicklime , pozzolana and an aggregate of pumice . Its widespread use in many Roman structures ,
9216-438: The entire populated portion of the city lying on the west side of the river was completely underwater, over twenty-five hundred houses, affecting fourteen thousand persons, being completely surrounded. On March 28, the river registered at 19.6 feet (6.0 m), more than two feet (0.61 m) above its highest previous mark. More than one-hundred years later, the 2013 Grand Rapids flood occurred from April 12 to 25, 2013, with
9344-571: The federal government to survey the Grand River Valley in the fall of 1830 and in the first quarter of 1831. The federal survey of the Northwest Territory reached the Grand River, with Lyon using a surveyor's compass and chain to set the boundaries for Kent County, named after prominent New York jurist James Kent . In 1833, a land office was established in White Pigeon, Michigan , with Campau and fellow settler Luther Lincoln seeking land in
9472-431: The finished product. Construction aggregates consist of large chunks of material in a concrete mix, generally a coarse gravel or crushed rocks such as limestone , or granite , along with finer materials such as sand . Cement paste, most commonly made of Portland cement , is the most prevalent kind of concrete binder. For cementitious binders, water is mixed with the dry cement powder and aggregate, which produces
9600-473: The first frame structure in Grand Rapids, which is now where McKay Tower stands. Guild later became the postmaster, with mail at the time being delivered monthly from the Gull Lake, Michigan to Grand Rapids. Grand Rapids in 1833 was only a few acres of land cleared on each side of the Grand River, with oak trees planted in light, sandy soil standing between what is now Lyon Street and Fulton Street. By 1834,
9728-405: The first town meeting that had nine voters. It was also this year Campau began constructing his own frame building—the largest at the time—near present-day Rosa Parks Circle. In 1835, many settlers arrived in the area with the population growing to about 50 people, including its first doctor, Dr. Wilson, who was supplied with equipment from Campau. Lucius Lyon , using his knowledge from surveying
9856-763: The first trading post in West Michigan in present-day Grand Rapids on the banks of the Grand River , near what is now Ada Township , the junction of the Grand and Thornapple Rivers . They were French-speaking and Roman Catholic . They likely both spoke Odawa , Magdelaine's maternal ancestral language. In the fall of 1806, Joseph was fatally stabbed by a member of the Potawatomi tribe named Nequat. Joseph had been with his family and an entourage of voyageurs traveling between Grand River and Grand Rapids. The Potawatomi man had insisted that Joseph trade liquor with him. When Joseph refused,
9984-614: The governmental and labor structure of the city. With businesses upset with Mayor Ellis for supporting the strike lobbied for the city to change from a twelve-ward government – which more accurately represented the city's ethnic groups – to a smaller three ward system that placed more power into the demands of Dutch citizens, the city's largest demographic. Some workers who participated in the strike were blacklisted by companies and thousands of dissatisfied furniture workers emigrated to higher paying regions. Shifting from its furniture-centric industry, downtown Grand Rapids temporarily became
10112-638: The group returning to the Carey Mission for the Potawatomi on the St. Joseph River . The government worker stayed into 1824 to establish a blacksmith shop, though the shop was burned down by the Odawa. Later in May 1824, Baptist missionary Reverend Leonard Slater traveled with two settlers to Grand Rapids to perform missionary work, though the group began to return to the Carey Mission after only three days due to threats. While
10240-412: The group was returning, they encountered Chief Noonday who asked for the group to stay and establish a mission, believing that the Odawa adapting to European customs was the only chance for them to stay in the area. The winter of 1824 was difficult, with Slater's group having to resupply and return before the spring. Chief Noonday, deciding to be an example for the Odawa, chose to be baptized by Slater in
10368-689: The hotel features photography from one of the cities, which is unique to that floor. Cityscapes of these five cities are alternated in order, up the 23 floors. The city's tallest building is the River House Condominiums , a 34-story (123.8 m) condominium tower completed in 2008 that stands as the tallest all-residential building in the state of Michigan. Grand Rapids is also home to two large urban nature centers. The Calvin Ecosystem Preserve and Native Gardens, operated by Calvin University on
10496-554: The interlinking of the silicates and aluminate components as well as their bonding to sand and gravel particles to form a solid mass. One illustrative conversion is the hydration of tricalcium silicate: The hydration (curing) of cement is irreversible. Fine and coarse aggregates make up the bulk of a concrete mixture. Sand , natural gravel, and crushed stone are used mainly for this purpose. Recycled aggregates (from construction, demolition, and excavation waste) are increasingly used as partial replacements for natural aggregates, while
10624-474: The intersection of what is now Watson Street and National Avenue, with Chief Black Skin – known by his native name recorded as Muck-i-ta-oska or Mukatasha (from Makadewazhe or Mkadewzhe , "Have Black Skin") and was son of Chief Noonday – leading the village. In 1820, General Lewis Cass , who was on his way to negotiate the first Treaty of Chicago with a group of 42 men, commissioned Charles Christopher Trowbridge to establish missions for Native Americans in
10752-441: The late 19th and early 20th century, and a Polish neighborhood developed on the west side of the city. By the early twentieth century, the quality of furniture produced in Grand Rapids was renowned throughout furniture industry, mainly due to the skill of its workers. Government reports in 1907 revealed that while Grand Rapids lead the industry in product output, its furniture workers were paid lower wages than in other areas. After
10880-467: The late fall and winter, delayed heating in the spring, delayed cooling in fall, somewhat moderated temperatures during winter and lake effect snow . The city averages 75.6 in (192 cm) of snow a year, making it one of the snowiest major cities in the United States. The area often receives quick and sudden lake effect snowstorms , producing significant amounts of snowfall. The months of March, April, October and November are transitional months and
11008-406: The making of mortar. In an English translation from 1397, it reads "lyme ... is a stone brent; by medlynge thereof with sonde and water sement is made". From the 14th century, the quality of mortar was again excellent, but only from the 17th century was pozzolana commonly added. The Canal du Midi was built using concrete in 1670. Perhaps the greatest step forward in the modern use of concrete
11136-417: The man left, only to return at dusk when Joseph, who faithfully performed the ritual of Angelus every day at that time, was in prayer. Nequat stabbed the trader, fatally wounding him, leaving Joseph's wife, Magdelaine, a widow at age twenty-four. The next spring, a delegation from the Potawatomi tribe brought the offender, Nequat, before Magdelaine for her sentence upon him for the death of her husband. It
11264-531: The material. Mineral admixtures use recycled materials as concrete ingredients. Conspicuous materials include fly ash , a by-product of coal-fired power plants ; ground granulated blast furnace slag , a by-product of steelmaking ; and silica fume , a by-product of industrial electric arc furnaces . Structures employing Portland cement concrete usually include steel reinforcement because this type of concrete can be formulated with high compressive strength , but always has lower tensile strength . Therefore, it
11392-419: The mix, are being tested and used. These developments are ever growing in relevance to minimize the impacts caused by cement use, notorious for being one of the largest producers (at about 5 to 10%) of global greenhouse gas emissions . The use of alternative materials also is capable of lowering costs, improving concrete properties, and recycling wastes, the latest being relevant for circular economy aspects of
11520-478: The mixed concrete, often to a concrete mixer truck. Modern concrete is usually prepared as a viscous fluid, so that it may be poured into forms. The forms are containers that define the desired shape. Concrete formwork can be prepared in several ways, such as slip forming and steel plate construction . Alternatively, concrete can be mixed into dryer, non-fluid forms and used in factory settings to manufacture precast concrete products. Interruption in pouring
11648-441: The mixing of cement and water into a paste before combining these materials with aggregates can increase the compressive strength of the resulting concrete. The paste is generally mixed in a high-speed , shear-type mixer at a w/c (water to cement ratio) of 0.30 to 0.45 by mass. The cement paste premix may include admixtures such as accelerators or retarders, superplasticizers , pigments , or silica fume . The premixed paste
11776-541: The northwest side of present-day Grand Rapids near Bridge Street with about 500 Odawa, though the population would grow to over 1,000 on occasion. During the War of 1812 , Noonday was allied with Tecumseh during the Battle of the Thames . Tecumseh was killed in this battle, and Noonday inherited his tomahawk and hat. A second village existed lower down the river with its center located at
11904-579: The old tiger exhibit to hold a rock hyrax and a group of colobus monkeys . In 2021, John Ball Zoo announced that a new habitat at the entrance of the zoo was in the process of being built for pygmy hippos , the exhibit will also be home to a pair of white storks . The exhibit is planned to open in 2023. In 2022, John Ball Zoo hosted two male koalas from the San Diego Zoo Global Education and Conservation Project. After they arrived, their exhibit opened in May 11, 2022. The zoo also offers
12032-472: The poor. Only a few aging animals remained. During 1949, Katherine Whinery approached the mayor of Grand Rapids about resurrecting the zoo by forming a zoo society. A deal was made that if a zoo society could be formed, the city would hire a zoo director to run the zoo. Fred Meyer was hired as the first director of the zoo. Construction of the Monkey Island Exhibit, the first major exhibit ever built,
12160-429: The population. Of the 72,126 households, 31.1% had children under the age of 18 living with them, 35.5% were married couples living together, 16.4% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 43.1% were non-families. 32.3% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older. The average household size
12288-506: The properties or increase the performance envelope of the mix. Design-mix concrete can have very broad specifications that cannot be met with more basic nominal mixes, but the involvement of the engineer often increases the cost of the concrete mix. Concrete mixes are primarily divided into nominal mix, standard mix and design mix. Nominal mix ratios are given in volume of Cement : Sand : Aggregate {\displaystyle {\text{Cement : Sand : Aggregate}}} . Nominal mixes are
12416-556: The public. Kent County including in the 2008-2009 Capital Improvement Allocation half the cost of renovation of the Monkey Island Exhibit. The other half of renovation is supposed to come from the zoo society. As expected the spider monkeys roamed the new island in May 2009. The waist high concrete wall that surround the exhibit will be removed. The cement floor and rocks of the exhibit and moat will be removed and replaced with grass and more natural looking rocks. In 2014
12544-468: The quality and nature of the product. Design mix ratios are decided by an engineer after analyzing the properties of the specific ingredients being used. Instead of using a 'nominal mix' of 1 part cement, 2 parts sand, and 4 parts aggregate (the second example from above), a civil engineer will custom-design a concrete mix to exactly meet the requirements of the site and conditions, setting material ratios and often designing an admixture package to fine-tune
12672-572: The river cresting at 21.85 feet (6.66 m) on the 21st, causing thousands of residents to evacuate their homes and over $ 10 million in damage. The city skyline shows the Amway Grand Plaza Hotel , formerly the Pantlind, which reopened in 1981 after extensive renovations by Marvin DeWinter & Associates. This work included the addition of a 29–story glass tower offering panoramic views of
12800-431: The river. The countryside surrounding the metropolitan area consists of mixed forest and farmland, with large areas of orchards to the northwest. It is approximately 25 mi (40 km) east of Lake Michigan . The state capital of Lansing lies about 70 mi (110 km) to the east-by-southeast, and Kalamazoo is about 50 mi (80 km) to the south. Grand Rapids is divided into four quadrants , which form
12928-632: The royal palace of Tiryns , Greece, which dates roughly to 1400 to 1200 BC. Lime mortars were used in Greece, such as in Crete and Cyprus, in 800 BC. The Assyrian Jerwan Aqueduct (688 BC) made use of waterproof concrete . Concrete was used for construction in many ancient structures. Mayan concrete at the ruins of Uxmal (AD 850–925) is referenced in Incidents of Travel in the Yucatán by John L. Stephens . "The roof
13056-434: The settlement had become more organized. Rev. Turner had established a school on the east side of the river, with children on the west side of the river being brought to school every morning by a Native American on a canoe who would shuttle them across the river. Multiple events happened at Guild's frame structure, including the first marriage in the city, one that involved his daughter Harriet Guild and Barney Burton, as well as
13184-501: The settlement in 1836. Ball declared the Grand River valley "the promised land, or at least the most promising one for my operations". That year, the first steamboat was constructed on the Grand River named the Gov. Mason , though the ship wrecked two years later in Muskegon. Yankee migrants (primarily English-speaking settlers) and others began migrating from New York and New England through
13312-411: The strength of the concrete bonding to resist tension. The long-term durability of Roman concrete structures has been found to be due to its use of pyroclastic (volcanic) rock and ash, whereby the crystallization of strätlingite (a specific and complex calcium aluminosilicate hydrate) and the coalescence of this and similar calcium–aluminium-silicate–hydrate cementing binders helped give the concrete
13440-497: The surface of concrete for a decorative "exposed aggregate" finish, popular among landscape designers. Admixtures are materials in the form of powder or fluids that are added to the concrete to give it certain characteristics not obtainable with plain concrete mixes. Admixtures are defined as additions "made as the concrete mix is being prepared". The most common admixtures are retarders and accelerators. In normal use, admixture dosages are less than 5% by mass of cement and are added to
13568-535: The surfaces of the aggregate together, and is typically the most expensive component. Thus, variation in sizes of the aggregate reduces the cost of concrete. The aggregate is nearly always stronger than the binder, so its use does not negatively affect the strength of the concrete. Redistribution of aggregates after compaction often creates non-homogeneity due to the influence of vibration. This can lead to strength gradients. Decorative stones such as quartzite , small river stones or crushed glass are sometimes added to
13696-461: The trade business, expanding fur trading posts to the west and north, creating a good reputation among the American Fur Company . La Framboise, whose mother was Odawa and father French, later merged her successful operations with the American Fur Company. By 1810, Chief Noonday , or Nowaquakezick, an Odawa chief, established the village of Bock-a-tinck (from Baawiting , "at the rapids") on
13824-413: The twentieth century; in 1870 there were eight factories employing 280 workers and by 1911, Old National Bank wrote that about 8,500 were employed by forty-seven factories. At least a third of the workers in Grand Rapids were employed by furniture companies. The Grand Rapids Furniture Record was the trade paper for the city's industry. Its industries provided jobs for many new immigrants from Europe in
13952-655: The various ingredients used to produce a given quantity of concrete, the cement is the most energetically expensive. Even complex and efficient kilns require 3.3 to 3.6 gigajoules of energy to produce a ton of clinker and then grind it into cement . Many kilns can be fueled with difficult-to-dispose-of wastes, the most common being used tires. The extremely high temperatures and long periods of time at those temperatures allows cement kilns to efficiently and completely burn even difficult-to-use fuels. The five major compounds of calcium silicates and aluminates comprising Portland cement range from 5 to 50% in weight. Combining water with
14080-456: The village chief and Chief Noonday being the chief of the Odawa. The first permanent European-American settler in the Grand Rapids area was Isaac McCoy , a Baptist minister. In 1823, McCoy, Paget, a Frenchman who brought along a Native American pupil, and a government worker traveled to Grand Rapids from Carey Mission near present-day Niles, Michigan to arrange a mission they called the "Thomas Mission", though negotiations fell through with
14208-480: The walk way to be petted. On May 9, 2007, the river otters had a baby boy. It first went out in the exhibit mid-July. In early September, the female black-footed cat had two kittens. The ring-tailed lemur exhibit was started in March 2009 and came out in May. In 2010, the zoo brought in a troop of Guinea baboons , the largest alligator outside of Florida , moved their flamingos to another pond, and altered
14336-439: The water content or adding chemical admixtures increases concrete workability. Excessive water leads to increased bleeding or segregation of aggregates (when the cement and aggregates start to separate), with the resulting concrete having reduced quality. Changes in gradation can also affect workability of the concrete, although a wide range of gradation can be used for various applications. An undesirable gradation can mean using
14464-527: The weather can vary. March has experienced a record high of 87 °F (31 °C) and record low of −13 °F (−25 °C). The average last frost date in spring is May 1, and the average first frost in fall is October 11, giving the area a growing season of 162 days. The city is in plant hardiness zone 6a, while outlying areas are 5b. Some far western suburbs closer to the insulating effect of Lake Michigan are in zone 6b. Summers are warm or hot, and heat waves and severe weather outbreaks are common during
14592-529: The whole zoo as a historical site as one way to stop the further development of the zoo. To stop the arguing, Fred Meijer offered to donate land and money if the zoo would move. In 2004, a ballot was put forward to voters in Kent County to relocate the John Ball Zoological Gardens; the referendum was defeated, and the zoo will remain at its current location for the foreseeable future. In 2005,
14720-406: The zoo as a lab. The John Ball Zoo school has extra curricular studies and admission is based mostly on students' Michigan Educational Assessment Program scores. The students are required to complete large projects, including studying current events and environmental issues as part of the specialized curriculum. Learning is done mostly by hands-on experiences; for instance, students are able to go to
14848-399: The zoo broke ground on the first phase of the new master plan, starting construction of a $ 4.1 million 0.3-acre (1,200 m) "BISSELL Lions of Lake Manyara" exhibit. The zoo has not had a lion since "Gilda", their last lion, died of old age in 2005. The exhibit was built for six lions, but only three were placed in the exhibit. On June 21, 2008, the new green lion exhibit was open to
14976-431: The zoo formed a non profit to take ownership of the zoo independent of Kent county to help facilitate further growth for the institution. On July 8, 2016, the stingray lagoon exhibit was closed after all 18 cownose stingrays and three spotted bamboo sharks died due to a mechanical malfunction. A heavy rainstorm, which shorted a pump circuit, was blamed for the deaths. The backup system intended to alert zoo officials of
15104-453: The zoo frequently and have extended yet limited access to go inside certain animal enclosures. In 1985, a conservation fund was started by John Boyles. The fund pays special attention to native Michigan animals, but also has funded programs in support of endangered amphibians and reptiles. The Wildlife Conservation Fund has funded projects that helped conserve wildlife and habitats in 30 countries. Grand Rapids, Michigan Grand Rapids
15232-515: Was Smeaton's Tower , built by British engineer John Smeaton in Devon , England, between 1756 and 1759. This third Eddystone Lighthouse pioneered the use of hydraulic lime in concrete, using pebbles and powdered brick as aggregate. A method for producing Portland cement was developed in England and patented by Joseph Aspdin in 1824. Aspdin chose the name for its similarity to Portland stone , which
15360-584: Was "one of the most important and delightful to be found in the country," and described the changing Native American culture in the area. By 1838, the settlement incorporated as a village, and encompassed approximately .75 square miles (1.9 km ). An outcropping of gypsum , where Plaster Creek enters the Grand River, was known to the Native American inhabitants of the area. Pioneer geologist Douglass Houghton commented on this find in 1838. Settlers began to mine this outcrop in 1841, initially in open cast mines , but later underground mines as well. Gypsum
15488-400: Was 11 °F (−12 °C). Summer nights influenced by the lake can be hot and muggy on occasion. The warmest night on record was 82 °F (28 °C) in 1902 and lows above 72 °F (22 °C) have been measured in every month between April and October. On average, the warmest low of the year stood at 74 °F (23 °C) for the 1991–2020 normals. The most recent record set was
15616-434: Was 2.49 and the average family size was 3.20. Concrete Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water , and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. When aggregate
15744-602: Was greatly reduced. Low kiln temperatures in the burning of lime, lack of pozzolana, and poor mixing all contributed to a decline in the quality of concrete and mortar. From the 11th century, the increased use of stone in church and castle construction led to an increased demand for mortar. Quality began to improve in the 12th century through better grinding and sieving. Medieval lime mortars and concretes were non-hydraulic and were used for binding masonry, "hearting" (binding rubble masonry cores) and foundations. Bartholomaeus Anglicus in his De proprietatibus rerum (1240) describes
15872-410: Was ground locally for use as a soil amendment known as "land plaster." The first formal census in 1845 recorded a population of 1,510 and an area of 4 square miles (10 km ). The city of Grand Rapids was incorporated April 2, 1850. It was officially established on May 2, 1850, when the village of Grand Rapids voted to accept the proposed city charter. The population at the time was 2,686. By 1857,
16000-461: Was printed on April 18, 1837, describing the village's attributes, stating: Though young in its improvements, the site of this village has long been known and esteemed for its natural advantages. It was here that the Indian traders long since made their great depot. The Grand River Times continued, saying the village had grown quickly from a few French families to about 1,200 residents, the Grand River
16128-614: Was quarried on the Isle of Portland in Dorset , England. His son William continued developments into the 1840s, earning him recognition for the development of "modern" Portland cement. Reinforced concrete was invented in 1849 by Joseph Monier . and the first reinforced concrete house was built by François Coignet in 1853. The first concrete reinforced bridge was designed and built by Joseph Monier in 1875. Prestressed concrete and post-tensioned concrete were pioneered by Eugène Freyssinet ,
16256-471: Was started in 1949 with an opening date of June 1, 1950. During the 50-60s, John Ball Zoo was built in the hills of the property. The John Ball Zoo was operated by the City of Grand Rapids until 1989, known as a regional asset because of the zoo, was sold to Kent County . During the 1990s, the zoo expanded with the building of Living Shores Aquarium , which is one of two aquariums in the state of Michigan , and
16384-444: Was their tradition for the victim's family to avenge deaths within that tribe. Magdelaine refused to sentence him and, in an act of forgiveness, told the Potawatomi tribe members to let him go and that God would be his judge. Though Magdelaine had forgiven Nequat, the tribe had not. Nequat's body was found stabbed with his own knife the next season. After Joseph's murder while en route to Grand Rapids, Magdelaine La Framboise carried on
#285714