火力发电厂的粉煤灰,是一种量大面广的工业废料,对于建筑行业来说,则是一种用途广泛的建筑材料。以作砂浆掺合料而言,初步估算,在一般砖混结构建筑中,每百平方米建筑物大约需要10～13立方米砌筑砂浆,可吃掉粉煤灰3～3.5吨,用它代替全部石灰膏和部分水泥,可节约材料费约100元;如在内外抹灰砂 Fly ash from thermal power plants is a large amount of industrial waste. For the construction industry, it is a widely used building material. For mortar admixtures, preliminary estimates indicate that in a typical brick-concrete structure, approximately 10 to 13 cubic meters of masonry mortar will be required per 100 square meters of building, and 3 to 3.5 tons of fly ash can be eaten. Replace all lime paste and part of cement, save material costs about 100 yuan;