Why Use Silica Fumes For Concrete?
Silica fumes comprise of lots of benefits due to which they are mixed with concrete in suitable proportion. They are used in a universal manner to provide high tensile strength and durability. When mixed with hard as well as fresh concrete, there will be a appreciable change in overall characteristics.
Silica Fumes for Concrete – Providing Dense and Impermeable Pore Structure
Reduction of permeability is one of the basic characteristics of silica fumes. The ingress movement of water is directly proportional to deterious reactions. Silica fumes for concrete will definitely help in providing dense and impermeable structure of pore. The total porosity of silica fume concrete is very much similar to that of OPC concrete.
Silica fumes also help a lot in bringing high improvement in mechanical performances of the concrete. They react with cement paste thus forming additional strong Calcium Silicate Hydrate to provide high tensile strength. They also help a lot in reduction of bleeding thus enhancing aggregation of bonds in case of cement paste.
Silica Fumes with Concrete – Providing Protection from Corrosion
Along with saving cost, silica fumes along with concrete will help in reducing total het in association with hydration finally improving performance of concrete. Inclusion of silica fumes with concrete has also been well known to improve reinforcement corrosion protection. In marine structure, performance of concrete is taken for consideration.
Resistance to chloride diffusion through the concrete is a main concern. Recent research has shown that the mixture of silica fumes along with concrete will produce highly durable performance against chloride induced reinforcement corrosion and sulfate attack. It is really interesting to know about high tensile strength in association with silica fumes.
These are some exclusive characteristics that inspire mixing of silica fumes with concrete. High performance is duly promised as silica fumes minimize the risk of sulfate attack.