用硅粉改善隧道衬砌: 力量, 耐用性, 和阻力
Silica fume particles are extremely small, with diameters around 100 times smaller than typical cement particles. This ultrafine size allows for a high surface area,
河南优之源
2023-04-29
Silica fume particles are extremely small, with diameters around 100 times smaller than typical cement particles. This ultrafine size allows for a high surface area,