Precast concrete is the term used for concrete construction products that are made in molds under controlled conditions and then shipped to construction sites. This technique, first utilized in 1905, creates concrete products that are much better in quality and uniformity than standard concrete components that are poured and cured on-site. Because prefabricated concrete products are produced in managed environments, there is greater management over quality and workmanship than can typically be found in outdoor concrete construction settings. By producing the products in precast plants, the concrete is afforded the opportunity to cure to exact specifications and the molds can be very easily reused.
There are many advantages to employing precast concrete products in a construction project. These can include strength, durability, fire resistance, chemical resistance, aesthetics, low maintenance, safety and ease of installation. Because precast processing plants specialise in pre-cast concrete Gauteng, they can offer a variety of shapes, sizes, colors and finished that can not be found in an on-site concrete construction process. Because the molds used to create precast products can be reused many times, there is a reduction in overall construction costs. On top of that, because most prefabricated products are developed and manufactured for simple connection, they save on labor expenses as they can be lifted and installed into place in a short period of time.
Precast concrete products are now generally used worldwide for many different applications. Municipalities use concrete products for waste water disposal and treatment and storm water drainage. Thousands of transportation structures like terminal buildings and platform risers have been erected worldwide using precast concrete construction products for many years. Other examples include feed and water troughs for animals, barriers for use in transportation construction zones, building walls, landscape retaining barriers, storm cellars, pump stations, cemetery vaults, communication vaults and containers for the storage of hazardous materials; just to name a few.
New home building is now making more use of prefabricated concrete walls because they provide greater durability and lower manpower costs. Concrete walls can last longer than other types of home construction materials due to greater resistance to rot, insect damage and high winds. The walls can be of a single or double thickness which are made to exact specifications so they can be effortlessly installed. Double thickness walls are also called sandwich walls when they are produced from two layers of concrete with a layer of insulation sandwiched in between. Since they are molded to precise specifications, concrete walls can also be made with door, window and pipe access openings already in place.There is predicted to be a big increase in the use of precast concrete globally for the long term. Population increases and the depletion of other natural resources usually utilised in construction, particularly in developing nations, will dictate an increased use of precast concrete building procedures.