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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Tools > Frequently Asked Questions
Q. What is silica fume? A. Silica fume is very fine noncrystalline silica produced in electric arc furnaces as a byproduct of the production of elemental silicon or alloys containing silicon.(ACI CT). The average size of a silica fume particle is about 100 times smaller than an average portland cement particle. It acts as a mineral filler and also as a pozzolan, leading to concrete of high strength and low permeability. Silica fume is marketed in different forms: as-produced, densified or compacted, and slurried. References: SP-1(02); ACI CT-23; ACI 234R-06; E3-13; ASTM C1240 Topics in Concrete: Silica Fume; Concrete Fundamentals; Materials; Pozzolan
Q. What is silica fume?
A. Silica fume is very fine noncrystalline silica produced in electric arc furnaces as a byproduct of the production of elemental silicon or alloys containing silicon.(ACI CT). The average size of a silica fume particle is about 100 times smaller than an average portland cement particle. It acts as a mineral filler and also as a pozzolan, leading to concrete of high strength and low permeability. Silica fume is marketed in different forms: as-produced, densified or compacted, and slurried.
References: SP-1(02); ACI CT-23; ACI 234R-06; E3-13; ASTM C1240
Topics in Concrete: Silica Fume; Concrete Fundamentals; Materials; Pozzolan
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