Silica fume also known as microsilica CAS number 69012 64 2 EINECS number 273 761 1 is an amorphous non crystalline polymorph of CONCRETE Optimizing the Use of Fly Ash in Concrete ash silica fume and a variety of natural pozzolans such as calcined clay and shale and volcanic ash SCM s that are hydraulic in behavior
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Get PriceThe optimum proportion of silica fume is found in between 20% and 25% by weight of concrete Silica Fume when react with calcium hydroxide on hydration of cement produces calcium siicate hydrate which has good binding properties 2 fCHARACTERISTICS OF SILICA FUME 1 Physical Properties Diameter is about 0 1 μ to 0 2 μ
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Get PriceWhat is Silica Fume Silica Fume is a finely divided mineral admixture available in both uncompact and compacted forms This ultra fine material will better fill voids between cement particles and result in a very dense concrete with higher compressive strengths and extremely low permeability
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Get PriceProduct Characteristics Pelletized Silica Fume • Dustless • Non reversible agglomeration • Small pellets typically 3/8 to 1 inch 10 to 25 mm diameter • Utilized in interground silica fume blended cement • Not suitable for direct use in concrete Premium White Silica Fume Colors Standard Grey Silica Fume Reactions Chapter Outline
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Get PriceInternational Concrete Abstracts Portal Title Lightweight Microsilica silica fume Concrete Use in the U S A Author s Mark D Luther Publication Symposium Paper Volume 136 Issue Appears on pages s 273 294
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