膨胀珍珠岩是建材料中优良的轻骨料。膨胀珍珠岩同一般使用砂子与水泥制的砂浆比较,具有体轻、隔热、隔音、防火与耐火的优点,而且使用方便。在建筑上使用的珍珠岩是自然生成的硅质火山岩石,包含有少量的化合水,当破碎的颗粒加热到需要温度,珍珠岩会膨胀,可 Expanded perlite is an excellent lightweight aggregate material. Compared with the commonly used mortar made of sand and cement, expanded perlite has the advantages of lightness, heat insulation, sound insulation, fire resistance and fire resistance, and is easy to use. The perlite used in the building is a naturally occurring siliceous volcanic rock containing a small amount of combined water. When the broken particles are heated to the required temperature, the perlite can expand.