Guidance Documents

COMMAND Center is in full compliance with ASTM C1074, the current ASTM International Standard for monitoring in-place concrete maturity.

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In addition to fully complying with ASTM C1074, COMMAND Center purchases always include a free licensed copy of ASTM C1074 because we know how important it is to perform the test correctly.

The specification has been in place since 1987. It is highly recommended that any concrete maturity implementation include a thorough study of this standard along with project-specific documentation or specifications.

For more information about ASTM C1074 and licensing, please visit ASTM’s website.

This practice can be used to estimate the in-place strength of concrete to allow the start of critical construction activities such as: (1) removal of formwork and reshoring; (2) post-tensioning of tendons; (3) termination of cold weather protection; and (4) opening of roadways to traffic.

—ASTM’s Standard Practice for Estimating Concrete Strength by the Maturity Method Online

Official concrete maturity and temperature monitoring specifications and guidelines.

Temperature Specifications

  • ASTM C31: Standard Practice for Making and Curing Concrete Test Specimens in the Field
  • ASTM C39: Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
  • ACI 306R: Cold Weather Concreting
  • ACI 306.1: Standard Specification for Cold Weather Concreting
  • ACI 207.2R: Effect of Restraint, Volume Change, and Reinforcement on Cracking of Mass Concrete
  • ACI 207.4R: Cooling and Insulating Systems for Mass Concrete

Maturity Specifications

  • ASTM C1074: Standard Practice for Estimating Concrete Strength by the Maturity Method
  • ASTM C918: Standard Test Method for Measuring Early-Age Compressive Strength and Projecting Later-Age Strength
  • ACI 228.1R (Section 2.7): In-Place Methods to Estimate Concrete Strength
  • ACI 306R: Cold Weather Concreting
  • ACI 318: Building Code Requirements for Structural Concrete

SHRP Guidelines (SHRP-C-376)

Structure ComponentSize of Concrete PlacementNumber of Thermocouples
Slabs, Beams, and Abutment Walls76 m³ (100 yd³)5
Columns1.5 – 7.6 m3 (2-10 yd³)1 Per Column, 2 Per Column

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