Speedex Corporation Ltd. Jamnagar, Gujarat

Silica Fume is typically grey in color and is categorized as a supplementary cementations material. Silica fume consists of very fine particles. It is a high performance, densified product, derived as a by - product used in pre - mixed concrete for enhancing mechanical properties of concrete with special performance requirements, including increased strength, reduced permeability, improved abrasion resistance and increased corrosion resistance. Being a highly reactive pozzolan, silica fume chemically reacts with calcium hydroxide present in the cement paste creating a stronger calcium silica hydrate.

Silica fume consists of very fine particles. It is a high performance, densified product, derived as a by - product used in pre - mixed concrete for enhancing mechanical properties of concrete with special performance requirements, including increased strength, reduced permeability, improved abrasion resistance and increased corrosion resistance. Being a highly reactive pozzolan, silica fume chemically reacts with calcium hydroxide present in the cement paste creating a stronger calcium silica hydrate.

Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.