ASTM C109
Full Name
ASTM C109 – Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
Scope
ASTM C109 outlines the procedure for determining the compressive strength of hydraulic cement mortars. This is done by preparing and testing cube-shaped specimens under compression.
The scope of ASTM C109 includes:
- Purpose: to measure the compressive strength of hydraulic cement mortars, providing a standard method for evaluating their performance and quality.
- Specimen type: cube specimens with dimensions of 2 inches (50 mm) per side.
- Materials: hydraulic cement, standard sand, and water.
- Mixing and molding: procedures for preparing the mortar mixture and casting the cube specimens.
- Curing: specific conditions for curing the specimens before testing.
- Testing: applying a compressive load to the specimens until failure and recording the maximum load.
- Calculation: determining the compressive strength by dividing the maximum load by the cross-sectional area of the specimen.
Applications:
- Evaluating the quality of different types of hydraulic cement.
- Assessing the effect of various factors (e.g., water-cement ratio, admixtures) on mortar strength.
- Comparing the compressive strength of different mortar formulations.
ASTM C109 is a fundamental test method in the cement and concrete industry. It provides a standardized way to assess the compressive strength of hydraulic cement mortars, which is a critical property for their use in various construction applications.
ASTM C109 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C109 standard.
Contact us for more information.
Resources
Keywords
compressive strength; hydraulic cement; mortar; cube specimen; testing; curing; mixing; molding; load; failure