Fused silica micro powder significantly enhances compressive, flexural, impermeability, corrosion resistance, impact resistance, and wear resistance; it retains water, prevents segregation and bleeding, and greatly reduces concrete pumping resistance; it substantially extends the service life of concrete, especially under harsh conditions such as chloride and sulfate侵蚀, high humidity, etc., doubling or even multiplying its durability; it drastically reduces the amount of fallen dust in shotcrete and cast-in-place materials, increasing the thickness of a single layer; it is a necessary component for high-strength concrete; it has about 5 times the effectiveness of cement, and its use in normal concrete and low-cement castables can reduce costs and improve durability; it effectively prevents alkali-aggregate reactions in concrete; and it enhances the densification of cast refractory materials.