玻璃纤维增强水泥是一种复合材料。它主要由水泥砂浆(基材)和玻璃纤维组成。之所以采用高强度的玻璃纤维,是因为它能提高低强度脆性基材的强度和韧性。为此目的,既不需要玻璃纤维具有很高的刚度,也不需要使用很多的玻璃纤维。在一般情况下,刚度为基材的2～3倍,而抗拉强度为基材300倍左右的玻璃纤维,就是一种理想的增强材料;而且其体 Glass fiber reinforced cement is a composite material. It consists mainly of cement mortar (base material) and glass fiber. The reason why high-strength glass fiber is used is because it can improve the strength and toughness of low-strength brittle substrates. For this purpose, it is not necessary that the glass fiber has a high stiffness and does not require the use of a large number of glass fibers. In general, the rigidity is 2 to 3 times that of the substrate, and the glass fiber whose tensile strength is about 300 times that of the substrate is an ideal reinforcing material;