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Proceedings Paper

Research on durability of self-leveling silicone rubber as aqueduct joint sealant
Author(s): Meizhu Chen; Yixuan Mi; Shaopeng Wu; Jiesheng Liu
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Paper 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.

Paper Details

Date Published: 14 April 2010
PDF: 7 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75223P (14 April 2010); doi: 10.1117/12.851546
Show Author Affiliations
Meizhu Chen, Wuhan Univ. of Technology (China)
Yixuan Mi, Wuhan Univ. of Technology (China)
Shaopeng Wu, Wuhan Univ. of Technology (China)
Jiesheng Liu, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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