日本中山制钢所研制出一种将高炉矿渣球化后的粒状矿渣。该矿渣可制成0.6—5毫米的四种粒度,其颗粒均匀、质量稳定,可代替成本高的海、河砂等天然骨料。而且适于大批量生产。该公司以做喷砂、透水性地面装修材料、墙体材料为目的,已开始正式生产。月产 Japan’s Zhongshan Steel Institute developed a granulated slag that spheroidized the blast furnace slag. The slag can be made into four sizes of 0.6-5mm, with uniform particles and stable quality, which can replace natural aggregates such as sea and river sand with high cost. Also suitable for mass production. The company has begun formal production for the purpose of sandblasting, permeable flooring materials, and wall materials. Monthly production