Experimental device for building materials in low temperature environment

Abstract

The invention provides a low-temperature environment experimental device for a building material. The low-temperature environment experimental device comprises a box body, wherein an opening is formed in the front part of the box body; a mounting end cover is hinged to the front-end opening of the box body; a long-strip groove is formed in an inner wall of the top end of the box body; the long-strip groove is internally provided with a sliding block; the sliding block can move horizontally along the long-strip groove; three first chain wheels are fixedly mounted on the inner wall of the top end of the box body; the three first chain wheels are uniformly distributed in a triangular shape; one chain wheel is provided with a power device; the three first chain wheels are fixedly connected through a first chain; a movable block is fixedly mounted on the first chain; a horizontal rod is arranged below the first chain; the horizontal rod and the long-strip groove are vertical to each other. The bottom end of a rotary shaft of a first gear is fixedly conencted with the bottom ends of rotary shafts of two second gears through a connecting rod, and the second gears can be prevented from falling off, so that the structure is more stable, and the utilization effect is better. After a lug boss stretches out of the box body, retractable rods are stretched or retracted according to the width of the building material, and hook bodies are in contact and match with the building material to clamp the building material, so that the movement of the building material is avoided.

Description

Technical field [0001] The invention belongs to the technical field of building materials, in particular to a low-temperature environment building material experimental device. Background technique [0002] With the progress of the times and the gradual development of science and technology, civil engineering construction under low temperature and cryogenic environment is emerging. Concrete is a commonly used building material, but it is susceptible to freeze-thaw erosion in a low temperature environment, resulting in structural damage; the plasticity and toughness of high-strength steel also deteriorate significantly in a low temperature environment. Therefore, there is a need for a device for experimenting with building materials in a low temperature environment. Summary of the invention [0003] The invention provides a low-temperature environment building material experiment device to solve the defects in the prior art. [0004] The present invention is realized through the fo...

AI Technical Summary

Problems solved by technology

Concrete is a commonly used building material, but it is susceptible to freeze-thaw erosion in low temperature environments, resulting in structural damage; high-strength steel also significantly deteriorates in plasticity and toughness in low temperature environments

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