How is strength estimated by the maturity method?

In This Section

Other Sources for Answers

Search other resources on the ACI website for answers to technical questions

Technical Questions

ACI Committees, Membership, and Staff have answered common questions on a variety of concrete related topics.



How is strength estimated by the maturity method?

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