Silica fume for submarine tunnel UHPC

Silica fume for submarine tunnel UHPC, this microsilica is commonly added to ultra-high performance concrete (UHPC) used in the construction of undersea tunnels to increase the bonding and compressive strength of UHPC. Silica powder are an important part of UHPC, which mainly include silica fume for bridge UHPC, quartz powder and other mineral powder materials with high fineness. These fillers can significantly improve the density and hardness of concrete, making it more durable. Fine aggregates are the filling and reinforcing materials of UHPC, which are usually fine sand and fine stones with uniform particle shape and good quality. These fine aggregates can fill the voids in the concrete and improve the compactness and strength of the concrete. High-performance additives, on the other hand, are key to the performance enhancement of UHPC. These additives include fly ash, high-efficiency water reducing agents, re-enforcement agents, etc. They can significantly improve the fluidity, com…