一项国外资料表明在常用的原料中掺入托贝莫来石为主要成分的硅酸钙粉可降低墙地砖的透水性和提高其抗冻性,一般墙地砖透水率在10%～20%,抗冻性差,而加入硅酸钙后,透水率可降到0。如原料中用10%的长石、15%硅石、20%陶石、20%高岭土、5%石灰石和30%木节粘土配料,外加50%的上述 A foreign data show that in the commonly used raw materials into the Tuobobei mullite as the main component of calcium silicate powder can reduce the permeability of the floor tiles and improve its frost resistance, water permeability of the general wall tiles 10% to 20% , Frost resistance is poor, and after adding calcium silicate, water permeability can be reduced to 0. For example, 10% feldspar, 15% silica, 20% pottery, 20% kaolin, 5% limestone and 30%