Recently, concrete reinforced with fiberglass has become very popular. More and more people use such GFRC concrete in various fields. So what are its greatest advantages and why should it be decided to use it?
The biggest advantages of GFRC concrete
The big advantage of architectural concrete slabs is that they are not produced in an industrial manner in large series, like ceramic tiles. Therefore, there will be no problems with ordering entire boards to the dimension, for example, we want to finish the fireplace casing. Such boards can also have holes made right in the right place, through which the air will flow into the living room heated by a fireplace insert.
Concrete, used for the production of claddings, must be prepared with particularly good ingredients. The basis is of course a certain cement, produced in a cement plant, but it is also important to use good aggregate and clean water. Of course, chemical admixtures are added to the concrete mix, mainly plasticizers, improving its workability.
Architectural concrete slabs have a small thickness (1-2 cm), in relation to their other dimensions, often exceeding 1 m. They should be so strong that they will not crack during transport and during laying. For this reason, they use dispersed reinforcement, which apart from increasing the strength of such plates for bending, also protects them against scratches caused by concrete contraction.
Distributed reinforcement can be added to the concrete mix of polypropylene fibers, used, for example, in concrete floor screeds. However, glass fibers with an increased content of zirconium are definitely stronger than them. These fibers, unlike those made of ordinary glass, in a highly alkaline (alkaline) environment such as concrete, do not undergo accelerated corrosion.
What are the reasons for the popularity of GRC?
The claddings of architectural concrete reinforced with fiberglass are very durable and durable. They are usually designated with GRC or GFRC symbols, from the English name: Glass Fiber Reinforced Concrete.
GRC panels are very resistant to sun, low and high temperatures and all factors that cause concrete corrosion. Therefore, they can be used on the facades of houses, including those located in an urban environment with high air pollution, without any fear.