Precast concrete is a product used for construction. It is made by casting concrete in a reusable form or mold. It is then cured in a controlled environment, transferred to the construction site and lifted into place. On the other hand, standard concrete is placed into a specific site form and then cured right then and there. Precast stone is notable from precast concrete by applying a fine aggregate in the mixture. As a result, the final product is turned into an appearance of by nature, occurring rock or stone.
By making precast concrete in a controlled environment like in a precast plant, it is guaranteed that it will be cured properly and monitored closely by plant employees. It also has a lot to offer in its potential advantages versus on-site casting. The production of pre-cast concrete is done on a ground level. Thus, it for the safety all throughout the project. In addition, there is much more control over the quality of the material and workmanship in a precast plant in comparison to a construction site. Before the forms have to be replaced, the precast plant can be reused up to thousands of times. Time and again, it is cheaper than on-site casting when considering the cost of the form work per unit.
There are a lot of various types of precast concrete forking systems for architectural applications: difference in size, function and cost. Likewise, pre-architectural panels are handled with clad all or some of a building facades. Some are on free-standing walls that serve for landscaping, security and soundproofing. Some may be used for pre-stressed concrete structural factors. A few examples of where precast concrete units are used are in storm water drainage, sewage and water pipes and tunnels.
The New South Wales Government Railways produced an extensive use of precast concrete construction for its stations and related buildings. Sometime between 1917 and 1932, 145 buildings were erected. On the far side of cladding panels and structural elements, a full building can be built from precast concrete. Because of precast assembly, it can expedite the completion of commercial shops and offices, in a minimal labor.
In order to finish the look of four precast wall panel types — cladding panels, inner layer, plastered sandwich and sandwich — there are many available surface finishes. As far is standards is concerned, cement is white or grey. However, a variety of colors can be added with paints or pigments. The color and the size of aggregate can also influence the display and quality of concrete surfaces.