ASTM C348
Full Name
ASTM C348 – Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
Scope
ASTM C348 outlines the procedure for determining the flexural strength of hydraulic-cement mortars. This is done by subjecting a mortar prism specimen to a center-point loading until failure.
Specifically, the standard covers:
- Specimen preparation: details the dimensions, proportions, and mixing procedure for the mortar prism specimens.
- Test setup: describes the apparatus and setup required for the test, including the loading frame, supports, and loading device.
- Loading procedure: explains how the load is applied to the center of the specimen until failure occurs.
- Calculation of flexural strength: provides the formula for calculating the flexural strength (modulus of rupture) of the mortar based on the maximum load and specimen dimensions.
- Data analysis: offers guidance on analyzing and reporting the test results.
ASTM C348 is used for:
- Research and development: evaluating the flexural behavior and performance of different hydraulic cement mortars.
- Reference purposes: providing reference values for the flexural strength of mortar under standardized conditions.
It is important to note that ASTM C348 is not used for determining compliance with specification requirements. The flexural strength values obtained from this test method are intended for research and reference purposes only. Additionally, this standard does not address the compressive strength of hydraulic-cement mortars, which is covered in a separate ASTM standard, C349.
ASTM C348 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C348 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
flexural strength; hydraulic-cement mortar; modulus of rupture; center-point loading; mortar prism; flow table