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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. How is strength estimated by the maturity method? A. The maturity method is a technique to estimate in-place strength by accounting for the effects of temperature and time on strength development. The thermal history of the concrete and a maturity function are used to calculate a maturity index that quantifies the combined effects of time and temperature (ACI 228.1R) (ASTM C1074). The strength of a particular concrete mixture is expressed as a function of its maturity index by means of a empirically established strength-maturity relationship. The measured in-place maturity index is then used to estimate the in-place strength from the strength relationship. References: SP-1(02); ACI 228.1R-19; ACI 228.2R-13; ASTM C1074 Topics in Concrete: Nondestructive Testing; Testing of Concrete
Q. How is strength estimated by the maturity method?
A. The maturity method is a technique to estimate in-place strength by accounting for the effects of temperature and time on strength development. The thermal history of the concrete and a maturity function are used to calculate a maturity index that quantifies the combined effects of time and temperature (ACI 228.1R) (ASTM C1074). The strength of a particular concrete mixture is expressed as a function of its maturity index by means of a empirically established strength-maturity relationship. The measured in-place maturity index is then used to estimate the in-place strength from the strength relationship.
References: SP-1(02); ACI 228.1R-19; ACI 228.2R-13; ASTM C1074
Topics in Concrete: Nondestructive Testing; Testing of Concrete
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