Fly ash is a finely divided residue made from the combustion of pulverized coal that can be used to increase concrete durability and workability, while reducing permeability. fly ash has a wide variety of applications and uses, though it is primarily known for improving the durability and workability of concrete mixes. Fly ash is also a filler in paints, adhesives, and metal and plastic composites. It's commonly used as structural fill for road construction and fly ash can be used to make bricks, ceramic tiles, plaster, Portland cement, and ready-mix cement.
Ultra fine Fly ash is a super pozzolanic material. ( it is ultra fine Ash) A pozzolan is a siliceousor aluminous material that when mixed with lime and water forms acementitious compound.Ultra-Fine Fly Ash (UFFA) used as up to 50% partial replacement for cement in concrete. UFFA is a new generation fine coal fly ash, which is double-classified to obtain the finer particles from the classified bulk. The influence of UFFA on fresh properties (flow, setting time and air content), porosity of mid to high strength, medium workability concrete mixes (designed for equal 28-day strength) are reported and compared with concrete mixes made with OPC, Micro-Silica
Fly ash is a by-product of coal burning at the utility plants. As coal is burned, non-combustible mineral impurities in coal evaporate andcondense into tiny particles of glass, almost totally spherical inshape. The individual particles are very small, like talcum powderand are carried up and out of the boiler in the flow of exhaust gasesleaving the boiler after the coal is consumed. The fly ash particlesare removed from the exhaust stream in bag houses or electrostatic precipitators and then stored for later shipment The difference between fly ash and Portland cement becomes apparentunder a microscope. Fly ash particles are almost totally spherical inshape allowing them to flow and blend freely in mixture. Thatcapability is one of the properties making fly ash adesirable admixture of concrete.
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Greetings from keshavam international, india. we are one of the leading sourcing agency and merchant exporter based at ahmedabad, gujarat. we deal in plastic & engineering products, hardware items, storage tanks and food stuffs. our main countries of export are australia, new zealand, s.africa, zimbabwe, mauritius, maldives, kenya, somalia etc. for your reference in food stuffs we deal in cumin seed, sesame seed, white sesame seed, hulled sesame seed, soybean meal, soybean seed, yellow corn, maize seed, rice, peanuts (ground nut), red onion, wheat, wheat flour, maida, bentonite powder, copper slag, psyllium husk, fly ash.Design and development of oem products as per buyers specs/drawings on case to case basis.
