概述我们通常所指的混凝土,也称普通混凝土,是以水泥为胶结材料,加入骨料(一般为天然砂和石)和水,按适当比例配合拌和而成,经一定时间的硬化而成的人造石材。其中,砂、石起骨架和填充作用,称为骨料(也称集料);水泥是具有一定活性的胶结材料。水泥与水形成水泥浆,包裹在骨料表 Overview The concrete that we usually refer to, also known as ordinary concrete, is cement as a cementitious material, adding aggregate (usually natural sand and stone) and water, and mixing them in appropriate proportions, and hardening after a certain period of time. Artificial stone. Among them, sand and stone serve as skeletons and fillings, which are called aggregates (also called aggregates); cement is a cementitious material with certain activity. Cement and water form grout, wrapped in aggregate table