Concrete countertops are handmade product. The basic material which is used for production is concrete (i.e. Cement + Aggregate + Water). With respect to cement and lightweight aggregates, also the combinations of additives such as fiber reinforcement, silica fume pozzolan and acrylic. Sometimes more than one type of reinforcement is used and it can be structural steel, wire mesh, fiberglass, fibers etc.
Concrete countertops are usually designed for kitchens or bathrooms in a house. By its name homeowner, usually thinks that colour of countertop would be grey or similar to concrete, but now-a-days the experienced contractor can make the countertop which looks like natural stone. Colour options are possible by adding different colour pigments and stains mixed with cement that give the unique appearance. These countertops can be made of any desired size and shapes and are durable and long lasting material. However, these counter tops have pros and cons as compared to other materials.
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Concrete countertops are available either in pre-cast form means shop build or built on site. The concrete countertops that are precast are usually made in shop by using special casting tables, where they are cured and sealed by the contractors. Precast of concrete countertops are done by 3 different methods such as Wet cast, hand packed and GFRC (Glass fiber Reinforced concrete) each has its own unique mix design, casting method and finished work.
If countertops are built on site, contractor can form the countertop to any client’s particular needs such as radius edges, curved corners, etc. Here the forms are built directly on cabinets and then concrete is poured in it. The concrete surface is further troweled until it gets rid of pinholes and becomes smooth. Here many colour effects are possible by adding pigments to concrete as skilled craftsman can make amazing options with stencils and other techniques. To achieve fine finish in countertop requires a high degree skill with trowel as cast in place countertops often have rough appearance.
The client chooses whichever method, first is to find the contractor with which they are comfortable and have some references that the contractor does the type of quality work that we are looking for.