苏联明斯克建筑材料科学研究所研究了一种新的装饰材料——轻混凝土砌块锯板。从外表看,它与天然火山凝灰岩相似。这种锯板由地方多孔集料混凝土制作。多孔集料有:多孔烧结料、陶粒、膨胀珍珠岩和工业废料(碎砖、黄铁矿渣、废的彩色泡沫玻璃)。 The Minsk Institute of Building Materials Science in the Soviet Union studied a new type of decorative material - light concrete block saws. From the outside, it is similar to natural volcanic tuff. This saw is made of local porous aggregate concrete. Porous aggregates include: porous sintered materials, ceramic particles, expanded perlite, and industrial waste (crushed brick, pyrite slag, waste colored foam glass).