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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
A. What is aggregate? A. Aggregate is granular material, such as sand, gravel, crushed stone, crushed hydraulic cement concrete, or air-cooled iron blast-furnace slag, used with hydraulic cement to produce either concrete or mortar. It is divided into two groups by size, as coarse aggregate (material retained on the 4.75-mm (No. 4) sieve), and fine aggregate (material passing the 4.75-mm (No. 4) sieve) (ACI 221R). References: SP-1(02); ACI CT-23; E-1(16); ACI 221R-96; ACI 213R-14; ASTM C33 Topics in Concrete: Aggregate; Concrete Fundamentals; Materials
A. What is aggregate?
A. Aggregate is granular material, such as sand, gravel, crushed stone, crushed hydraulic cement concrete, or air-cooled iron blast-furnace slag, used with hydraulic cement to produce either concrete or mortar. It is divided into two groups by size, as coarse aggregate (material retained on the 4.75-mm (No. 4) sieve), and fine aggregate (material passing the 4.75-mm (No. 4) sieve) (ACI 221R).
References: SP-1(02); ACI CT-23; E-1(16); ACI 221R-96; ACI 213R-14; ASTM C33
Topics in Concrete: Aggregate; Concrete Fundamentals; Materials
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