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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. Why is combined aggregate grading used? A. Combined fine and coarse aggregates grading is specified to ensure that a satisfactory amount of aggregate with a minimum amount of void spaces is obtained. This will enable the use of a minimum amount of paste (water and cementitious material) in concrete, improving the dimensional stability and the durability. References: SP-1(02); ACI 211.6T-14; E-1(16); ACI 221R-96; ACI 213R-14; ASTM C33 Topics in Concrete: Aggregate; Concrete Fundamentals; Materials; Mixture Proportioning
Q. Why is combined aggregate grading used?
A. Combined fine and coarse aggregates grading is specified to ensure that a satisfactory amount of aggregate with a minimum amount of void spaces is obtained. This will enable the use of a minimum amount of paste (water and cementitious material) in concrete, improving the dimensional stability and the durability.
References: SP-1(02); ACI 211.6T-14; E-1(16); ACI 221R-96; ACI 213R-14; ASTM C33
Topics in Concrete: Aggregate; Concrete Fundamentals; Materials; Mixture Proportioning
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