ASTM C31
Full Name
ASTM C31 – Standard Practice for Making and Curing Concrete Test Specimens in the Field
Scope
ASTM C31 outlines procedures for making and curing test specimens from fresh concrete samples on construction sites. These specimens are primarily cylindrical or beam-shaped and are used for testing compressive and flexural strength.
The scope of ASTM C31 includes:
- Materials: fresh concrete sampled from construction projects.
- Specimen types: primarily cylindrical and beam specimens, but not limited to these.
- Processes covered:
- Making specimens (molding, consolidating, and finishing).
- Curing specimens (protecting, maintaining temperature, and moisture conditions).
- Transporting specimens to the testing laboratory.
- Exclusions:
- Concrete without measurable slump.
- Concrete requiring specimen sizes or shapes not covered in the standard.
The purpose of ASTM C31 is to provide standardized procedures for making and curing test specimens, ensuring that the resulting strength test data is reliable and can be used for:
- Acceptance testing of concrete to verify it meets specified strength requirements.
- Evaluating the adequacy of mixture proportions for strength development.
- Quality control of concrete production and placement.
By following ASTM C31, the construction industry can maintain consistency and reliability in concrete testing, leading to better quality control and overall construction performance.
ASTM C31 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C31 standard.
Our laboratory is committed to adhering to the rigorous guidelines set forth in ASTM C31. We offer comprehensive concrete testing services, including specimen preparation according to this standard. Contact us today to discuss how we can ensure your project receives reliable concrete strength evaluations.
Resources
Keywords
concrete; test specimens; field curing; molding; sampling; temperature; moisture; cylinders; beams; consolidation; finishing; transportation