Automatic tester for static compressive strength elasticity modulus of concrete

Abstract

The invention discloses an automatic tester for static compressive strength elasticity modulus of concrete. The automatic tester comprises a horizontal bottom plate, an upper strain measurement assembly, a lower strain measurement assembly, dial gauges and a digital display device, wherein a test piece positioning plate and four vertical sliding rods are mounted on the bottom plate; the test piece positioning plate is provided with test piece positioning blocks; each test piece positioning block is provided with a left positioning surface, a right positioning surface and a rear positioning surface; the tops of the four sliding rods are fixedly connected through a top plate; a test piece inlet is arranged in the front end of the top plate; the lower strain measurement assembly and the upper strain measurement assembly are symmetrically arranged between the two sliding rods located at the same side of the test piece positioning plate; front and rear ends of the lower strain measurement assembly and the upper strain measurement assembly are in sliding connection with the sliding rods; measurement ejector pin mechanisms are mounted on the lower strain measurement assembly and the upper strain measurement assembly; the dial gauges are located between the two measurement ejector pin mechanisms located at the same side of the test piece positioning plate; the digital display device is electrically connected with the two dial gauges respectively; a resetting mechanism is mounted on the top plate.

Description

technical field [0001] The invention belongs to the technical field of concrete performance testing, and in particular relates to an automatic measuring instrument for concrete static compression elastic modulus. Background technique [0002] The elastic modulus of concrete is used to characterize the relationship between the stress and strain of concrete, which is a very important mechanical property of concrete. It is used to calculate the deformation of concrete structures, analyze the generation and development of concrete cracks, and calculate the temperature stress of mass concrete. When , the modulus of elasticity of concrete is an essential parameter. The test of concrete elastic modulus needs to meet the test requirements of the current national standard GB / T5008. At present, the most widely tested device for concrete elastic modulus on the market and in the laboratory is the TM-2 concrete elastic modulus tester designed and produced according to the national stand...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an automatic measuring instrument for concrete static compression elastic modulus, which solves the problems of multi-person collaborative operation, difficult data reading, complicated data calculation, etc., and can completely omit the test. The cumbersome test equipment installation process in the early stage has improved the test efficiency and test success rate

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