Abstract
With the grouting material as focus, this study aims to guarantee that the joint with tenon and mortise constructing a metro station has the necessary waterproof performance, which shall not be poorer than the mechanical properties of the concrete with joints itself, and fine structural integrity. With groutability at low-temperature and available operational time as basis, low-temperature epoxy was selected as the grouting material for the joints. The silica powder of particular particle size and mass was added for modifying the physical performance of grouting material. A series of physical and mechanical tests were conducted in an attempt to achieve the optimal particle size and mix ratio provided that costs were reduced as practically as possible. Also, the flexural capacity of the joint filled with the above grouting material was demonstrated via the combined equal-proportion joint axial bend test.
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Acknowledgements
This study is supported by Opening Foundation of Shandong Key Laboratory of Civil Engineering Disaster Prevention and Mitigation (CDPM2019ZR08). This research is supported by Changchun City Orbit Traffic Ltd. of Corp Copy Right of China.
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Su, H., Li, R. & Yang, M. An experimental study of modified physical performance test of low-temperature epoxy grouting material for grouting joints with tenon and mortise. J Intell Manuf 32, 667–677 (2021). https://doi.org/10.1007/s10845-020-01664-0
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DOI: https://doi.org/10.1007/s10845-020-01664-0