The concrete obsession Concrete is composed of limestone, clay, silica sand, and blast-furnace slag, which is combined in the correct proportions, ground, and heated at high temperatures. Then, an appropriate proportion of gypsum is added to create what we know as concrete.
水泥情結水泥是以石灰石、粘土、矽砂、鐵渣為原料，經配比、混合、研磨、高溫燒結而成熟料，再加入適當比例的石膏，就是俗稱的水泥。