Precast Concrete Septic Tanks by American Concrete of Bangor & Auburn Maine. C858 - 10e1 Standard Specification for Underground Precast Concrete Utility Structures, Precast concrete utility structures, Underground precast concrete utility structures. Precast concrete products are cast in molds in a factory setting. These energy efficient concrete products benefit from superior quality control and reduced waster achievable at a production plant. Precast concrete - Wikipedia, the free encyclopedia. A precast concrete walled house in construction. An example of low- quality precast concrete with exposed dowels, connectors and presence of cracks and malformations even during its installation. Interior view of the walls, supports, and roof of a precast commercial shop. Note the utilities preassembled into the precast components. The Jim Bridger Building, Williston, North Dakota, USA. Seismic Design Of Reinforced And Precast Concrete Buildings Pdf DownloadPrecast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and lifted into place. In contrast, standard concrete is poured into site- specific forms and cured on site. Precast stone is distinguished from precast concrete by using a fine aggregate in the mixture, so the final product approaches the appearance of naturally occurring rock or stone. By producing precast concrete in a controlled environment (typically referred to as a precast plant), the precast concrete is afforded the opportunity to properly cure and be closely monitored by plant employees. Utilizing a Precast Concrete system offers many potential advantages over site casting of concrete. The production process for Precast Concrete is performed on ground level, which helps with safety throughout a project. There is a greater control of the quality of materials and workmanship in a precast plant rather than on a construction site. Financially, the forms used in a precast plant may be reused hundreds to thousands of times before they have to be replaced, which allow cost of formwork per unit to be lower than for site- cast production.[1]Many states across the United States require a precast plant to be certified by either the Architectural Precast Association (APA), National Precast Concrete Association (NPCA) or Precast Prestressed Concrete Institute (PCI) for a precast producer to supply their product to a construction site sponsored by State and Federal DOTs. There are many different types of precast concrete forming systems for architectural applications, differing in size, function, and cost. Seismic Design Of Reinforced And Precast Concrete Buildings PdfPrecast concrete building components and site amenities are used architecturally as fireplace mantels, cladding, trim products, accessories, and curtain walls. Structural applications of precast concrete include foundations. Overview Precast Concrete Frames Guide September 2003 Concrete Built is Better Built Irish Precast Concrete Association Cumann Concréit Réamhtheilgthe na hÉireann. Precast concrete masonry lintels Quality Products for over 80 Years. INTRoDUCTIoN In residential and commercial buildings of concrete masonry, precast lintels are often used to span openings in the walls. These horizontal. Precast Concrete Construction 3 Depending on the wall layout, there are three basic configurations of large-panel buildings: • Cross-wall system. The main walls that resist gravity and lateral loads are placed in the short. Precast concrete buildings are virtually indestructible and will provide years of no maintenance other than painting access doors. For more information on Century Groups Inc.’s Precast Concrete Steps and other Architectural and Industrial Precast Concrete products contact the Century Group Inc. at 800-527-5232, in Sulphur, Louisiana. Prestressed Concrete Panels and Precast Concrete Products. Precast retaining walls, concrete barriers, lego blocks & more. Advice & Quote within 2 Hours. Precast architectural panels are also used to clad all or part of a building facade free- standing walls used for landscaping, soundproofing, and security walls, and some can be Prestressed concrete structural elements. Stormwater drainage, water and sewage pipes, and tunnels make use of precast concrete units. The New South Wales Government Railways made extensive use of precast concrete construction for its stations and similar buildings. Between 1. 91. 7 and 1. Beyond cladding panels and structural elements, entire buildings can be assembled from precast concrete. Precast assembly enables fast completion of commercial shops and offices with minimal labor. For example, the Jim Bridger Building in Williston, North Dakota, was precast in Minnesota with air, electrical, water, and fiber utilities preinstalled into the building panels. The panels were transported over 8. Bakken oilfields, and the commercial building was assembled by 3 workers in minimal time. The building houses over 4. Virtually the entire building was fabricated in Minnesota. To complete the look of the four precast wall panel types — sandwich, plastered sandwich, inner layer, and cladding panels — there are many different possibilities for the surface. The cement can be white or grey, and the color and size of the aggregate make a difference. Different colors, pigments, and paints can be added. The shape and surface of the precast concrete molds have an effect on the look: the mold can be made of timber, steel, plastic, rubber, or fiberglass, each material giving a unique finish. Brief history[edit]Ancient Roman builders made use of concrete and soon poured the material into moulds to build their complex network of aqueducts, culverts, and tunnels. Modern uses for pre- cast technology include a variety of architectural and structural applications featuring parts of or an entire building system. In the modern world, precast panelled buildings were pioneered in Liverpool, England, in 1. A process was invented by city engineer John Alexander Brodie, whose inventive genius also had him inventing the football goal net. The tram stables at Walton in Liverpool followed in 1. The idea was not taken up extensively in Britain. However, it was adopted all over the world, particularly in Eastern Europe[4] and Scandinavia. In the US, precast concrete has evolved as two sub- industries, each represented by a major association. The Precast Concrete Products industry focuses on utility, underground, and other non- prestressed products, and is represented primarily by the National Precast Concrete Association (NPCA). The Precast Concrete Structures industry focuses on prestressed concrete elements and on other precast concrete elements used in above- ground structures such as buildings, parking structures, and bridges. This industry is represented primarily by of the Precast/Prestressed Concrete Institute (PCI). Precast concrete products[edit]The following is a sampling of the numerous products that utilize precast/prestressed concrete. While this is not a complete list, the majority of precast/prestressed products can fall under one or more of the following categories: Agricultural products[edit]Precast concrete products can withstand the most extreme weather conditions and will hold up for many decades of constant usage. Products include bunker silos, cattle feed bunks, cattle grid, agricultural fencing, H- bunks, J- bunks, livestock slats, livestock watering trough, feed troughs, concrete panels, slurry channels, and more. Prestressed concrete panels are widely used in the UK for a variety of applications including agricultural buildings, grain stores, silage clamps, slurry stores, livestock walling, and general retaining walls. Panels can either be used horizontally and placed either inside the webbings of RSJs (I- beam) or in front of them. Alternatively panels can be cast into a concrete foundation and used as a cantilever retaining wall. Building and site amenities[edit]. Precast parking structure showing an interior column, girders and double- tee structural floors. The two gray circles are covers to close the lifting anchor holes. Precast concrete building components and site amenities are used architecturally as fireplace mantels, cladding, trim products, accessories, and curtain walls. Structural applications of precast concrete include foundations, beams, floors, walls, and other structural components. It is essential that each structural component be designed and tested to withstand both the tensile and compressive loads that the member will be subjected to over its lifespan. Multi- storey car parks are commonly constructed using precast concrete. The constructions involve putting together precast parking parts which are multi- storey structural wall panels, interior and exterior columns, structural floors, girders, wall panels, stairs and slabs. These parts can be large such as double- tee structural floor modules which are lift in place at the sites by precast concrete lifting anchor systems.[5]Retaining walls[edit]. An example of a precast concrete retaining wall. Precast concrete provides the manufacturers with the ability to produce a wide range of engineered earth retaining systems. Products include: commercial retaining wall, residential walls, sea walls, mechanically stabilized earth (MSE) panels, modular block systems, segmental retaining walls, etc. Retaining walls have 5 different types which include: gravity retaining wall, semigravity retaining wall, cantilever retaining wall, counterfort retaining wall, and buttress retaining wall.[6]Sanitary and stormwater[edit]Sanitary and Stormwater management products are structures designed for underground installation that have been specifically engineered for the treatment and removal of pollutants from sanitary and stormwater run- off. These precast concrete products include stormwater detention vaults, catch basins, and manholes.[7]Utility structures[edit]For communications, electrical, gas or steam systems, precast concrete utility structures protect the vital connections and controls for utility distribution. Precast concrete is nontoxic and environmentally safe. Products include: hand holes, hollowcore products, light pole bases, meter boxes, panel vaults, pull boxes, telecommunications structures, transformer pads, transformer vaults, trenches, utility buildings, utility vaults, utility poles, controlled environment vaults (CEVs,) and other utility structures.[8]Water and wastewater products[edit]Precast water and wastewater products hold or contain water, oil or other liquids for the purpose of further processing into non- contaminating liquids and soil products. Products include: aeration systems, distribution boxes, dosing tanks, dry wells, grease interceptors, leaching pits, sand- oil/oil- water interceptors, septic tanks, water/sewage storage tanks, wetwells, fire cisterns and other water & wastewater products.[8]Transportation and traffic related products[edit]Precast concrete transportation products are used in the construction, safety and site protection of road, airport and railroad transportation systems. Products include: box culverts, 3- sided culverts, bridge systems, railroad crossings, railroad ties, sound walls/barriers, Jersey barriers, tunnel segments, precast concrete barriers, TVCBs, central reservation barriers and other transportation products. These are used to make underpasses, surface- passes and pedestrian subways, so that traffic in cities is disturbed for less amount of time[9] and for other purposes. Precast concrete is also used for the roll ways of some rubber tired metros. Modular paving[edit]Modular paving is available in a rainbow of colors, shapes, sizes and textures. These versatile precast concrete pieces can be designed to mimic brick, stone or wood.[1. Concrete Steps - Precast Concrete Steps. Century Group Inc. United States. Our Oklahoma Division, located in Muskogee, Oklahoma, services the states of Oklahoma, Texas, Arkansas, Kansas and Missouri. Our Alabama Division located in Greenville, Alabama services Mississippi, Alabama, Georgia and Florida. Our Tennessee Division, located in Lebanon, Tennessee, territory includes Tennessee, Kentucky, Ohio, Indiana, Illinois, Michigan and Wisconsin. Our North Carolina division, located in Princeton, North Carolina, territory includes South Carolina, Virginia, West Virginia, North Carolina, Maryland, Pennsylvania, New York and Massachusetts. Our Louisiana facility is located in Sulphur, Louisiana and services Texas, Mississippi and Louisiana. All Century Group precast concrete products are manufactured in the United States and meet the "Buy American” specifications. Century Group Railroad Grade Crossing Panels, Railroad Spill Containment Systems, Precast Concrete Steps, Stair Treads, Signs, Security Bollards, Parking Curbs / Wheel Stops, Architectural and Industrial Precast Concrete products are available throughout the continental US and some products can be shipped worldwide.
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