概况灰砂砖是用硅砂、石灰和水作原料,通过原料制备、压制成型和蒸压养护所制得的建筑砖。“灰砂砖”这个名字历时已久,但近来有改称“硅酸钙砖”之势。改称的理由其一:‘灰砂砖’这个称呼不确切,因为不一定用石灰,可用电石渣;就是用石灰,最终也转化为消石灰;而且也不一定用天然砂子,可用破碎砂岩 The lime-sand brick is a building brick made from silica sand, lime and water as raw materials, through raw material preparation, compression molding and autoclave curing. The name “lime sand brick” has long been known, but recently it has been renamed “silica silicate brick”. One of the reasons for the rename is that the name “lime sand brick” is inaccurate, because limestone is not necessarily used, and calcium carbide slag can be used; lime is also used to convert it into slaked lime; and natural sand is not necessarily used, and broken sandstone is available.