Intelligent sensing control type lateral confining pressure restraint cementitious material strength detection device and convenient testing method thereof

The intelligent sensor-controlled lateral confining pressure constraint testing device solves the problems of sample surface processing quality sensitivity and hydraulic system complexity in traditional testing devices, realizing high-precision and low-cost cementitious material strength testing, and adapting to samples of different diameters.

CN121499238BActive Publication Date: 2026-07-21NANJING COMM INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING COMM INST OF TECH
Filing Date
2025-12-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional cementitious material strength testing devices are sensitive to the surface processing quality of the sample when simulating lateral stress in the formation, which leads to distortion of strength test results and large data dispersion. In addition, the hydraulic system is complex and costly, making it difficult to achieve continuous automated testing.

Method used

The detection device employs intelligent sensor-controlled lateral confining pressure constraint. Through the lateral pressure drive component and hinged rod structure, it provides stable lateral confining pressure, ensuring that the sample does not experience "pressure rod instability" during the detection process. It is also adaptable to samples of different diameters. Combined with the third slider and turntable structure, it achieves pre-positioning and stable clamping of the sample.

Benefits of technology

It improves the accuracy and stability of strength testing of cementitious materials, reduces the risk of sample tilting and fracture, simplifies the test preparation process, reduces costs, and enables adaptability testing for samples of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of cementitious material strength testing technology, specifically to an intelligent sensor-controlled lateral confining pressure constraint cementitious material strength testing device and its convenient testing method, comprising: a frame, a support base, a first annular component, a second annular component, a first pressure plate, a second pressure plate, and an abutment shaft, wherein an intelligent sensor is provided on the second pressure plate; a lateral pressure driving assembly, comprising: a connecting plate, on which a support rod is mounted, the support rod being connected to the abutment shaft; a cross slide assembly, on which a locking protrusion is provided; a hinge rod and a fourth spring, one end of which is coaxially mounted on the cross slide assembly, and the other end rotatably mounted on the support rod; and a triggering structure, on which a second guide slope is provided, the second guide slope cooperating with a first guide slope formed on the support rod, capable of driving the abutment shaft toward the center of the second annular component to provide stable confining pressure.
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