Cement mortar splitting tensile test tool

Abstract

The invention discloses a cement mortar splitting tensile test tool which is mainly used for performing a splitting tensile strength test on cement mortar. The cement mortar splitting tensile test tool comprises a base, a telescopic sliding sleeve and a spring mechanism; a sample position is arranged on the base, the vertically-arranged sliding sleeves are arranged on the two sides of the sample position respectively, the bottom ends of the sliding sleeves are matched with a base transverse grooves formed in the upper portion of the base, and two symmetrical stepped holes are formed in the sample position on the base; each stepped hole is internally provided with one spring mechanism, the top end of each spring mechanism protrudes out of the upper surface of the base, the upper end of thesliding sleeve is provided with a first notch, and the lower end of the sliding sleeve is provided with a second notch. According to the invention, the test sample does not incline, and the steel filler strip does not slide laterally, so that the problems of inaccurate test result and potential safety hazard caused by inclination of the test sample and lateral sliding of the steel filler strip inthe test process are solved.

Description

technical field [0001] The invention relates to a cement mortar splitting tensile test tool, which is mainly used for the splitting tensile test of cement mortar. Background technique [0002] JTS / T236-2019 "Technical Specifications for Testing and Testing of Concrete for Water Transport Engineering" requires splitting tensile strength tests for cement mortar splitting. During the test, a cube sample of 70*70*70 was placed between the upper and lower platens of the press, and steel pads with a diameter of 4mm were placed on the top and bottom surfaces, and the load was gradually added to calculate the mortar splitting resistance. Tensile strength f ("Specification" 10.10). However, in the test process, the steel spacer is often directly placed between the upper and lower platens of the universal testing machine or the press and the sample, and such problems are often encountered in the test process: 1. The cubic sample is not on a plane, resulting in The tilt of the sample...

AI Technical Summary

Problems solved by technology

[0003] The present invention is designed to solve the problem of inaccurate calculation due to the inclination of the sample and the contact between the steel pad and the sample line in the conventional test device when performing the splitting tensile strength test of cement mortar.

The present invention is to provide a cement mortar splitting tensile test fixture, which can make the calculation inaccurate due to the unstable inclination of the cube sample and the contact between the steel pad and the sample line during the cement mortar split tensile strength test. The problem that the bar slides sideways or even gets squeezed out to hurt people has been solved

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