小型空心砌块(以下简称小砌块)是一种原材料来源广泛、生产效率高、施工方便、经济指标好的新型建筑材料制品。近几年来,在我国南方各省推广使用、获得了良好的技术经济效果。但由于南方地区的小砌块大都是用普通混凝土制成的、容重大,保温性能较差,用它作外墙体在北方地区使用,显然是不能满足保温要求的。所以、在北方地区应用甚少。 Small hollow blocks (hereinafter referred to as small blocks) are a kind of new building materials products with wide source of raw materials, high production efficiency, convenient construction and good economic indicators. In recent years, we have promoted the use of our provinces in the south and achieved good technical and economic results. However, because the small blocks in the south are mostly made of ordinary concrete, with large capacity and poor thermal insulation performance, it is obviously not able to meet the requirements of thermal insulation when used as external walls in northern regions. Therefore, it is rarely used in the northern regions.