墙改推动了我国天然轻骨料的研究、开发和利用。按着国家标准GB2841—81《天然轻骨料》的要求,可以用作天然轻骨料的非金属矿有:浮石、火山渣、火山灰质硅藻岩、硅藻土、自燃煤矸石、烧变岩和膨胀珍珠岩、膨胀蛭石等,共8种。其中浮石、火山渣、自燃煤矸石、膨胀珍珠岩已应用十几年,产量已达100多万m~3;火山灰硅藻岩、硅藻土和膨胀蛭石已开始推向市场;烧变 The wall reform has promoted the research, development and utilization of natural lightweight aggregates in China. According to the requirements of national standard GB2841-81 “Natural Lightweight Aggregate”, non-metallic minerals that can be used as natural light aggregates are: pumice, volcanic slag, pozzolanic diatomite, diatomaceous earth, self-ignited gangue, burnt There are 8 types of rock, expanded perlite and expanded vermiculite. Pumice, volcanic slag, self-ignited coal gangue, and expanded perlite have been used for more than 10 years, and the output has reached more than 1 million m 3 ; volcanic ash diatomite, diatomaceous earth and expanded vermiculite have begun to push into the market;