1. Applications

This concrete compressive strength testing machine is to determine compressive strength of cylindrical concrete specimens and cubic concrete specimens by applying a compressive axial load to molded cylinders or cubic at a rate which is within a prescribed range until failure occurs. The compressive strength of the concrete specimen is calculated by dividing the maximum load attained during the test by the cross-sectional area of the specimen.

2.test method

GB/T 2611 testing machine General technical requirements

GB/T 3722 hydraulic pressure testing machine

GB/T 16825.1 Inspection of static single-axis testing machines - Part 1 : Examination and calibration of force measuring systems for tensile and compression testing machines

ISO 7500-1 metallic materials-verification of static uniaxial testing machines- parts 1: tension/compression testing machines-verification and calibration of the force-measuring system

ASTM E 74 practice of calibration of force-measuring instrument for verifying the force indication of testing machine

ASTM E4 Standard practice for force verification of testing machines

GB/T50081-2002 "Test methods for mechanical properties of ordinary concrete"

GB/T 4111 test method for the concrete block and brick

GB/T 11837 concrete compressive strength test method for concrete pipes

AASHTO T22 compressive strength of cylindrical concrete specimens

BS 1881 testing concrete

ASTM C39/C39M standard test method for compressive strength of cylindrical concrete specimens

EN 12390-3 testing hardened concrete- part 3: compressive strength of test specimens

ISO 1920-4 testing of concrete-part 4: strength of hardened concrete

3. Specifications for concrete compressive strength testing machine