Real-time testing device and real-time testing method of size deformation after cement based composite material hardening

Abstract

The invention provides a real-time testing device and a real-time testing method of size deformation after cement based composite materials hardening. The real-time testing device and the real-time testing method of the size deformation after the cement based composite materials hardening comprise a measurement component, a detachable component and a fixing component, wherein the fixing component comprises a base and an outer die. The outer die is arranged at an edge of the base and is perpendicular to the base. The detachable component comprises a round inner die which is perpendicular to the base, and the diameter of the round inner die is 0.5-0.8 times as long as the width of the outer die. The measurement component comprises a dial indicator and a test probe, and the dial indicator penetrates through holes formed in the outer die and the round inner die. The test probe is pre-embedded in a test piece, and the position of the test probe corresponds to the dial indicator. Through a round inner forming test piece, wherein the diameter of the round inner forming test piece is far larger than the height of the round inner forming test piece, the test piece is enabled to freely set, harden and deform in the outer die with the diameter larger than that of the inner die, radial deformation quantity of the test piece after preheating is continuously tested by the adoption of the dial indicator, and under the premise that the test piece is not moved, and the deformation of the test piece cannot be restrained by containers around, the testing device can effectively, continuously and accurately test shrinkage and deformation of the cement based composite material after hardening.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows researchers to conduct tests that involve testing changes over time caused from heat or pressure applied during curing processes. By creating an internal cavity inside the tested object instead of removing any part beforehand, these experiments allow scientists to study how different types of composites react differently when subjected to thermal stress while maintain their original shape. Additionally, there may exist various methods used to measure the size change (expansion) due to temperature fluctuations. Overall, this technology provides technical benefits such improved efficiency, reliability, ease of manufacture, versatility, wide applicational scope, and ability to monitor large samples quickly.

Problems solved by technology

This patented technical problem addressed in this patents relates to developing tools capable of accurate tests of cements' volumetric changes during curing without requiring excessive labor input and equipment costs associated with current techniques like measuring size change (measured through calibration), sensors testing, and liquid injection into cathodes.

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