ASTM C617
Full Name
ASTM C617 – Standard Practice for Capping Cylindrical Concrete Specimens
Scope
ASTM C617 provides guidelines and procedures for capping cylindrical concrete specimens. Capping is the process of creating a smooth, plane surface on the ends of concrete cylinders to ensure accurate and reliable compressive strength testing. The standard covers capping freshly molded concrete cylinders with neat cement paste, and hardened cylinders and drilled concrete cores with high-strength gypsum plaster or sulfur mortar.
Key aspects covered by ASTM C617:
- Applicability: the standard applies to cylindrical concrete specimens used for compressive strength testing. It covers both freshly molded and hardened specimens, as well as drilled concrete cores.
- Materials: it specifies the materials suitable for capping, including neat cement paste, high-strength gypsum plaster, and sulfur mortar.
- Equipment: it details the equipment required for capping, such as capping plates, leveling devices, and trowels.
- Procedures: it outlines the step-by-step procedures for capping specimens with each material, including surface preparation, application of capping material, and curing.
- Tolerances: it specifies the allowable tolerances for the planeness and perpendicularity of capped surfaces.
The primary purpose of ASTM C617 is to standardize the capping process to ensure consistent and accurate compressive strength test results. By following the standard, laboratories and technicians can minimize errors and variability caused by uneven or non-parallel end surfaces of concrete specimens.
ASTM C617 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C617 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
capping; cylindrical concrete specimens; compressive strength; neat cement paste; high-strength gypsum plaster; sulfur mortar; capping plate; leveling device; planeness; perpendicularity