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Published on: August 31, 2017
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Self-Developed Testing System for Determining the Temperature Behavior of Concrete
He Zhu1, Qingbin Li2, Yu Hu3
1Department of Hydraulic engineering, Tsinghua University, Beijing 100084, China. zhuhe14@mails.tsinghua.edu.cn.
Materials (Basel, Switzerland)
|August 5, 2017
Summary
A new synchronous closed loop federated control temperature stress testing machine (TSTM) system effectively simulates mass concrete cracking. This advanced TSTM provides accurate deformation measurements and compensates for external temperature effects, improving concrete quality assessment.
Area of Science:
- Civil Engineering
- Materials Science
- Structural Engineering
Background:
- Mass concrete cracking due to temperature and restraint is a significant engineering challenge.
- Existing temperature stress testing machines (TSTM) require advancements for comprehensive analysis.
Purpose of the Study:
- To develop a novel synchronous closed loop federated control TSTM system.
- To enhance the simulation accuracy and control capabilities for studying concrete temperature cracking.
Main Methods:
- Implementation of closed loop federated control, detachable mold design, direct measuring deformation, and temperature deformation compensation.
- Synchronous vibration of concrete specimens on a vibrating stand for quality assurance.
- Multi-TSTM closed-loop control within a single test period.
Main Results:
- The developed TSTM system accurately simulates various restraint degrees and multiple temperature/humidity modes.
- Direct measuring deformation yields precise results with minimal specimen damage.
- Temperature deformation compensation effectively eliminates external influences, ensuring reliable data.
Conclusions:
- The self-developed TSTM system offers comprehensive capabilities for studying mass concrete temperature cracking.
- The system enhances accuracy in deformation measurement and restraint degree assessment.
- Improved concrete quality control and a deeper understanding of cracking mechanisms are achieved.
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