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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 are blended cements and do they have standard specifications? A. ASTM C595 provides prescriptive-based specifications for specific blended cements that consist of portland-cement clinker ground or blended with suitable proportions of granulated blast-furnace slag or natural or artificial pozzolans. These include portland blast-furnace slag cement, Portland pozzolan cement, and slag cement. ASTM also provides a performance-based specification with no prescriptive requirements (ASTM C1157). References: SP-1(02); ACI 225R-19; ACI PRC-232.1-12; ACI PRC-233-17 ; E3-13; ASTM C595; ASTM C1157 Topics in Concrete: Cementitious Material in Concrete; Materials in Concrete; Pozzolan
Q. What are blended cements and do they have standard specifications?
A. ASTM C595 provides prescriptive-based specifications for specific blended cements that consist of portland-cement clinker ground or blended with suitable proportions of granulated blast-furnace slag or natural or artificial pozzolans. These include portland blast-furnace slag cement, Portland pozzolan cement, and slag cement. ASTM also provides a performance-based specification with no prescriptive requirements (ASTM C1157).
References: SP-1(02); ACI 225R-19; ACI PRC-232.1-12; ACI PRC-233-17 ; E3-13; ASTM C595; ASTM C1157
Topics in Concrete: Cementitious Material in Concrete; Materials in Concrete; Pozzolan
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