Features of GRC cement precast components in Hainan, such as:
① Cement: cement commonly used in GRC mainly includes quick hardening sulphoaluminate cement, low alkalinity sulphoaluminate cement, ordinary Portland cement and white Portland cement.
② Fiber: The fiber used in GRC material must be alkali resistant glass fiber, including alkali resistant glass fiber roving, alkali resistant glass fiber chopped yarn, and alkali resistant glass fiber gridding cloth. European and American countries require that the zirconia content of glass fiber used in GRC shall not be less than 16.5%, and China requires that the zirconia content of ordinary Portland cement shall not be less than 16.5%.
③ Polymer: usually added polymer is acrylic emulsion, namely acrylate copolymer emulsion.
④ Admixtures: Generally, superplasticizer, plasticizer, retarder, early strength agent, antifreeze, rust inhibitor and other admixtures can be selectively added: when products contain steel reinforcement materials or steel embedded parts, calcium chloride based admixtures shall not be used.
⑤ Other materials: some pozzolanic active materials can be selectively added to improve the comprehensive performance of GRC products, such as strength, impermeability, durability, etc.
There are many types of reinforced glass fiber, such as chopped fiber yarn, continuous fiber roving, mesh cloth, chopped fiber mat, etc. Different types of glass fiber are mixed into the cement matrix in different ways, and the same type of glass fiber is mixed into the cement matrix in different ways. And the amount of glass fiber and the way of use have a great impact on the mechanical properties of glass fiber reinforced cement composites.
This has resulted in a variety of manufacturing processes for glass fiber reinforced cement composites, such as spray process, premixed spray process, premixed pouring process, mold injection process, mesh distribution process, winding process, etc. Each production process has its own characteristics and is suitable for making different products. Of course, the equipment used is also different. More about Hainan Sculpture 、 Hainan GRC component 、 Hainan EPS component Please pay attention to the official website of Hainan Jin'ao Garden Sculpture Art Co., Ltd.