The role of silica fume in high-speed-rail Silica fume is a developing composite material that plays a key role in the construction of high-speed rail. It can optimize the utilization of materials in concrete engineering, improve economic efficiency, make the project durable and have little...Send InquiryChat Now
The role of silica fume in high-speed-rail
Silica fume is a developing composite material that plays a key role in the construction of high-speed rail.
It can optimize the utilization of materials in concrete engineering, improve economic efficiency, make the project durable and have little impact on the environment. The physical, mechanical and durability comparison of HPC (High Performance Concrete) shows that HPC (High Performance Concrete) has better strength (compression and bending) and lower permeability than ordinary concrete.
What is HPC?
High performance concrete (HPC) is not just a simple mixture of cement, water and aggregate. It is a highly active (microsilica powder, etc.) mineral component and chemical admixture with very specific properties that impart specific properties to concrete. The development of high-performance concrete stems from the realization of new science in concrete, the use of new science of admixtures and the use of advanced scientific equipment to monitor concrete microstructures.
The silica fume concrete structure has achieved maximum compressive strength in its existing microstructure. However, at this level of strength, coarse aggregates become the weakest link in concrete. In order to further increase the compressive strength of concrete, the only way is to remove the coarse aggregate. This concept has been applied to silica fume concrete.
The application of silica fume in high-speed-rail
Silica fume was developed in France in the early 1960s, the world's first silica fume concrete structure, and the Sherbrooke Bridge in Canada was completed in July 1997. Silica fume is a cement composite with ultra-high strength and high ductility with advanced mechanical and physical properties. It consists of a special concrete that optimizes the microstructure through precise grading of all particles in the mixture to produce maximum density. It uses a wide range of highly refined silica fume volcanic ash properties and optimizes Portland cement chemistry to produce the highest strength hydrates.
Should you have any interest in our silica fume for high-speed rail, welcome to contact us. With over 8 years experience in this field, our factory pays high attention to quality. Please rest assured to buy. Low price, fast delivery and excellent service are offered.