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Development and Application of GRC
Mar 28, 2018

What is GRC?

 

GRC is a glass fiber-reinforced cement. The basic composition materials are cement, sand, glass fiber, and water. In addition, materials such as polymers are used to improve the performance of the later stage. It occupies a unique position in architecture, and GRC decorative components are widely used in buildings around the world.

 

How does it develop and what kind of application does it have?


The application of GRC products in buildings began in the early 1970s. British architectural research institutes and Pilkington Glass Corporation conducted experiments on the reinforced cement products of alkali-resistant glass fibers. Then in 1966, the British invented alkali-resistant glass fiber and put it into practical use. This glass fiber is called “cem-fil”. It contains zirconia, which can slow down and prevent alkali in the cement from corroding the glass fiber, and then ensure the durability of the GRC product. The invention and use of alkali-resistant glass fibers is the starting point for the large-scale application of GRC products in actual construction.

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Subsequently, the production technology of GRC products was slowly introduced into the United States, Japan, the Netherlands, Spain, China, Germany, Italy, Singapore and other over 40 countries around the world. According to statistics, over 600 companies in the world have been engaged in research and production of GRC materials and GRC products in recent years.

 

Development of GRC Products in China

The prototypes of GRC materials and GRC products in China are similar to those of asbestos tiles. In the early days of liberation, when China lacks steel and there are few timbers, it is necessary to expand the varieties and application plans of reinforced concrete products, and to fully replace steel products with reinforced concrete products. And the wood. This was followed by the "three generations" policy of replacing cement, glass fiber, fiberglass, and other materials with steel, wood, and cotton yarn.

 

 

China's research on GRC materials and products began in the late 1950s. At that time, there were many technical personnel who promoted GRC materials and GRC products, but alkali-resistant glass fibers had not appeared at that time, and alkali-resistant glass fibers could only be used in GRC products. As a result, the strength of the GRC product decreases rapidly, and safety and durability are not guaranteed. Therefore, the country once issued a ban on the application of GRC products. It was not until the mid-1970s that China resumed its research and application of GRC materials and GRC products. On the one hand, the development of alkali-resistant glass fibers, on the other hand, the development of low-alkalinity cement. Both parties

The R&D of the surface took effect one after another in the mid-1980s. Then GRC materials initially entered the field of application in China, and in the 1990s they were promoted by large plans.

Nowadays, China has become a huge market for GRC materials and GRC products. There are nearly 1,000 companies engaged in the research and production of GRC materials and products, covering 31 provinces, cities and autonomous regions across the country, touching buildings, soil and agriculture. Animal husbandry and fisheries, environmental arts and military engineering.

 

GRC materials and GRC components are characterized by long-lasting environmental protection and quality, while GRC components are rich in shapes and colors. So what GRC can do? The most common GRC components include columns, decorative lines, doors and windows, fences, gardening supplies, urban sculptures, etc. GRC can also be used as curtain wall, imitation sandstone, and cement straight plastic molding. The reason why GRC has a wide range of applications is because of its strong plasticity, and whatever it does, it is suitable for outdoor or wet locations!


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