ASTM C348-14 PDF

Scope: 4.1 This test method provides a means for determining the flexural strength of hydraulic cement mortars. Portions of the mortar prisms tested in flexure according to this test method may be used for the determination of compressive strength in accordance with Test Method C349.

4.2 The values are determined from this test method for research or reference purposes only and are not used for determining compliance with specification requirements.

1.1 This test method covers the determination of the flexural strength of hydraulic-cement mortars.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 Values in SI units shall be obtained by measurement in SI units or by appropriate conversion, using the Rules for Conversion and rounding given in Standard IEEE/ASTM SI 10, of measurements made in other units.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2)

ASTM C348-14 Referenced Document

ASTM C1005 Standard Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of Hydraulic Cements
ASTM C109/C109M Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
ASTM C1437 Standard Test Method for Flow of Hydraulic Cement Mortar
ASTM C230/C230M Standard Specification for Flow Table for Use in Tests of Hydraulic Cement
ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
ASTM C349 Standard Test Method for Compressive Strength of Hydraulic-Cement Mortars (Using Portions of Prisms Broken in Flexure)
ASTM C670 Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
ASTM C778 Standard Specification for Standard Sand
IEEE/ASTM SI 10 American National Standard for Metric Practice

2021 ASTM C348-21 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
2020 ASTM C348-20 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
2019 ASTM C348-19 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
2018 ASTM C348-18 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
2014 ASTM C348-14 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
2008 ASTM C348-08 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
2002 ASTM C348-02 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars
1997 ASTM C348-97 Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars