Device and method for monitoring thermal expansion stress and deformation of foamed concrete under confinement

Abstract

A device and method for monitoring thermal expansion stress and deformation of foamed concrete in a restrained state belong to the technical field of performance testing of civil construction materials. The invention solves the problems that the prior art cannot realize the real-time and in-situ measurement of the expansion stress and deformation of the foamed concrete under the thermal curing environment, and the problems that the expansion stress and deformation of the foamed concrete cannot be measured under different thermal curing environments and restraint states. The foamed concrete is installed in the mold, the heating piece is installed at the bottom of the mold, and the temperature sensor is installed on the side of the mold, between the heating piece and the temperature control box and between the temperature sensor and the temperature control box. The slideways are arranged vertically on one side of the mold, the slides are arranged horizontally and are slidably connected to the slideways in the vertical direction, and a number of springs are evenly distributed between the slides and the cover, and the upper and lower The two ends are respectively fixed with the sliding plate and the cover plate, and the displacement sensor is installed at the center position of the lower surface of the sliding plate.

Description

technical field [0001] The invention relates to a device and a method for monitoring the thermal expansion stress and deformation of foam concrete in a restrained state, and belongs to the technical field of performance testing of civil engineering construction materials. Background technique [0002] As we all know, foamed concrete has excellent properties such as light weight and high strength, thermal insulation, sound insulation and fire resistance, shock absorption and earthquake resistance due to its large number of closed and small pores. In recent years, as a building partition wall or filling material, foamed concrete has been widely used in non-structural components or structural thermal insulation integrated building components. With the development of prefabricated buildings, building partition walls filled with foam concrete have received more attention. Due to its low density, foamed concrete can effectively reduce the weight of the structure, reduce the amoun...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing technology cannot realize the real-time and in-situ measurement of the expansion stress and deformation of the foamed concrete under the thermal curing environment, and the problem that the expansion stress and deformation of the foamed concrete cannot be measured under different thermal curing environments and constraints, and then Provided is a device and method for monitoring thermal expansion stress and deformation of foam concrete under restraint state

Images