Microsilica (silica fume) is a by-product of silicon metal or ferrosilicon industries, is an amorphous silicon dioxide SiO2. This product reacts chemically with the calcium hydroxide in the cement paste which yields a calcium silicate hydrate gel that significantly enhances strength and durability. The super fine microsilica fills the voids between cement particles creating a very dense, less permeable concrete. Physical characteristics: Color: gray or gray white powder Bulk density: 320-700 kg/m3 Chemical composition: Items SiO2 Al2O3 Fe2O3 MgO CaO Na2O Moisture Content 75-98% 1.0-0.2% 0.9-0.3% 0.7-0.1% 0.3-0.1% 1.3-0.2% Fineness: the fineness of the silica fume is less than 1 1/4m, and the average particle size is 0.1 0.3 1/4m, and the specific surface area is 20 - 28 m2/g. The fineness and specific surface area are about 80-100 times of cement and 50-70 times of fly ash. Maxtech Micro Silica supplies will be as per QCS 2014 (ASTM C1240): SiO2: >/= 92% LOI:
high purity and quality silica sand form many sizes , all with official labs certificates , with competitive prices
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Silica sand , silica flour , calcium carbonate.
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Micro Silica, Fly Ash And Ggbs.
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Fly Ash, Ggbs, Micro Silica, Cement.
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Supplier of silica sand / dried sand, only supplier from qatar to get approval from qatar gas. grp/frp cover,.
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Chemicals like xylene, butyl glycol, mpg, soda ash, caustic soda, hcl, sulphuric acid, citric acid,citric acid, glycerine, silica sand and gravel (all sizes), athracite, hydrogen peroxide, antiscalant, ipa, edta, salt tablets, smbs, tcca..
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Paints & coatings such as wood finishes, industrial, decorative, powder coaling, construction chemicals, can & coil coating and adhesives. in addition to paints accessories like spray guns, sand paper, wood glue, etc....
