Blending amount Generally 5-10% 胶凝材料的用量. The mixing method of silica fume is divided into internal mixing and external mixing. 内部混合: under the premise of the same amount of water, 1 部分硅粉可替代 3-5 水泥零件 (重量) and keep the compressive strength of concrete unchanged … 继续阅读微硅粉使用注意事项