| 摘要 |
Bricks and cement primarily composed of calcium silicate are made by mixing finely grained limestone comprising finely crystalline CaCO3 intimately mixed with extremely fine cryptocrystalline and amorphous silica and variable amounts of vitreous aluminosilicate materials, abundant for example in the Lefkara and Pakha formations in Cyprus, with lime and water so that reactions are saturated. Curing takes place at low temperatures and pressures so that in a warm climate, natural heat is all that is necessary. |
