Research on durability of self-leveling silicone rubber as aqueduct joint sealant

Meizhu Chen; Yixuan Mi; Shaopeng Wu; Jiesheng Liu

doi:10.1117/12.851546

14 April 2010 Research on durability of self-leveling silicone rubber as aqueduct joint sealant

Meizhu Chen, Yixuan Mi, Shaopeng Wu, Jiesheng Liu

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75223P (2010) https://doi.org/10.1117/12.851546
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

Aqueduct joints are intentionally preset to accommodate expansion and contraction due to temperature changes. The performance of the joints, especially for the large aqueduct, is very important to the service behavior of the aqueduct structure. Currently, the durability of traditional sealant materials is too poor, and the seepage of the aqueduct joints has become the uppermost engineering disease. In this research, a new kind of self-leveling silicon rubber, which consists of polysiloxane oligomer, fillers, plasticizer, crosslinking agent, catalyst and tackifier, etc, has been prepared to be used as the aqueduct joint sealant. Experimental investigation has been conducted on the stability of the self-leveling silicone rubber under different conditions such as water immersion, freeze-thaw cycling, hot pressing-cold drawing, fatigue. The results show that the silicone rubber has better durability and can be much more compatible for the performance requirements of the joint sealant for the large aqueduct structures.

Citation Download Citation

Meizhu Chen, Yixuan Mi, Shaopeng Wu, and Jiesheng Liu "Research on durability of self-leveling silicone rubber as aqueduct joint sealant", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75223P (14 April 2010); https://doi.org/10.1117/12.851546

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