HSA Microsilica

Various types of concrete construction requires different concrete indexs for its construction. The recommended value of these concrete mixes for various types of construction is presented in table below: Type of work Concrete Mix Ratio Max. size of aggregates (mm) Water for dry aggregates (liter)* Water for aggregates condition from dry to moist batch (liter)* Water for […]

The concrete is manufactured using cement, sand, gravel and water as the main components materials. The active material in concrete is cement which binds other materials physically and chemically with water and solidifies. Sometimes admixtures are used in concrete to enhance its properties. 1. Cement There are various types of cements used for manufacture of

In early January, we got an urgent enquiry about silica fume from Dubai, the customer, named as Eng. Ahmad Aftab from Ara*** Trading L.L.C., his e-mail content is the following: “…. Hope this finds you in cheers and good health. We kindly request you to quote your best prices for CIF Jebel Ali port, Dubai

Supplementary Cementitious Materials (SCM) are added to concrete mixtures for various reasons including improving durability, decreasing permeability, aiding in pumpability and finishability, mitigating alkali reactivity and improving the overall hardened properties of concrete through hydraulic or pozzolanic activity or both. SCM are added to concrete in addition to or as a partial replacement of Portland

Quality tests on cements at construction site (also called field tests on cement) are carried to know the quality of cement supplied at site. It gives some idea about cement quality based on colour, touch and feel and other tests. The following are the quality tests on cement at construction site: – Color test –

Microsilica can be used in gypsum products as a process aid, to improve ingredient dispersion and to improve hardened properties and overall durability, particularly in fire tests. Microsilica Grade 920 is a dry silica fume available in two main forms: Undensified (U) and Densified (D). Microsilica Grade 920 is a dry silica fume available in

Micro silica is an amorphous type of silica dust mostly collected in bag house filters as by-product of the silicon and ferro-silicon production. The paper summarizes important physical and chemical properties of micro silica and uses those results for an evaluation of micro silica from a Health Safety and Environment (HSE) standpoint. Micro silica consists

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