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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. Are the hydration reactions and the resulting properties of the cement affected by differences in raw materials or proportions of phases in the clinker? A. Yes. Increasing the proportion of lime to silica, for instance, increases the rate of gain in strength and also the rate at which heat is liberated. Also, the resistance of concrete to sulfate attack is generally inversely proportional to the tricalcium aluminate (C3A) content in the cement (ACI 225R). References: SP-1(02); ACI 225R-19; E3-13; ASTM C150; ASTM C595; ASTM C1157 Topics in Concrete: Cementitious Material; Concrete Fundamentals
Q. Are the hydration reactions and the resulting properties of the cement affected by differences in raw materials or proportions of phases in the clinker?
A. Yes. Increasing the proportion of lime to silica, for instance, increases the rate of gain in strength and also the rate at which heat is liberated. Also, the resistance of concrete to sulfate attack is generally inversely proportional to the tricalcium aluminate (C3A) content in the cement (ACI 225R).
References: SP-1(02); ACI 225R-19; E3-13; ASTM C150; ASTM C595; ASTM C1157
Topics in Concrete: Cementitious Material; Concrete Fundamentals
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