建筑石材是建筑材料中一种优质高强材料,品种繁多、用途广泛.有的质量坚硬,可用于作墙壁、基础材料,如花岗石、石灰石、玄武石等;有的经过煅烧,可为轻质高强的建筑材料,如千枚岩、珍珠岩、黑曜岩、煤矸石等;还有大量的片石、碎卵石等,可用作混凝土的骨料.大量使用石材,可以节约钢材、木材、水泥、煤炭,并可大量的代替粘土砖作墙壁材料. 材 Building stone is a kind of high-quality and high-strength material in construction materials. It has a wide variety of products and a wide range of uses. Some of the products are hard and can be used as walls and basic materials, such as granite, limestone, and basalt stone. Some of them are calcined and can be lightweight. High-strength building materials, such as phyllite, perlite, obsidian, coal gangue, etc.; there are a large number of pieces of stone, broken pebbles, etc., can be used as concrete aggregate. A large number of use of stone, can save steel, wood, cement , coal, and a large number of clay bricks instead of wall materials.