ASTM C1074-98 - 10.11.1998
 
1. Scope

1.1 This practice provides a procedure for estimating concrete strength by means of the maturity method. The maturity index is expressed either in terms of the temperature-time factor or in terms of the equivalent age at a specified temperature.

1.2 This practice requires establishing the strength-maturity relationship of the concrete mixture in the laboratory and recording the temperature history of the concrete for which strength is to be estimated.

1.3 The values stated in SI units are to be regarded as the standard.

1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

C684-99

Standard Test Method for Making, Accelerated Curing, and Testing Concrete Compression Test Specimens

C803/C803M-25

Standard Test Method for Penetration Resistance of Hardened Concrete

C403/C403M-23

Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance

C192/C192M-26b

Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory (Includes all amendments and changes 10/13/2026).

C109/C109M-26a

Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 50 mm [2 in.] Cube Specimens) (Includes all amendments and changes 7/30/2026).

C78-09

Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)

C39/C39M-26

Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

C511-21

Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes

C873/C873M-23

Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

C900-25

Standard Test Method for Pullout Strength of Hardened Concrete

C918/C918M-20

Standard Test Method for Measuring Early-Age Compressive Strength and Projecting Later-Age Strength

C31/C31M-26b

Standard Practice for Making and Curing Concrete Test Specimens in the Field (Includes all amendments and changes 8/27/2026).