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水泥防水砂浆在建筑工程中的用量虽然不多,但工程却离不开它,水泥防水砂浆在地下工程防渗、堵漏中仍为一种物美价廉的材料,应用广泛。水泥防水砂浆的品种很多,抗渗性能也有所不同,但其组成材料不外乎水泥、细集料和改性材料。细集料主要起骨架作用,试验表明,砂子细度模数的大小对防水砂浆抗渗性能有着不同的影响。一、原材料砂子:选用细砂、中砂、粗砂三种不同规格的材料,其技术数据见表1。
Although the use of cement waterproof mortar in construction projects is small, but the project is inseparable from it, waterproof mortar in underground engineering seepage, plugging is still a cheap and widely used materials. Many varieties of waterproof mortar, impermeability can be different, but the composition of the material nothing more than cement, fine aggregate and modified materials. The fine aggregate mainly plays the role of skeleton. Experiments show that the size of sand fineness modulus has different effects on the impermeability of waterproof mortar. First, the raw material sand: Selection of fine sand, sand, coarse sand of three different specifications of the material, the technical data in Table 1.