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| Preparation and Properties of Nano-silicone Marine Reinforced Concrete Permeable Protective Coating |
Qiang XU1,3,Shulin ZHAN2,Qilong ZHANG1,Jiansong SHENG1,3,Hui YANG1,3,**( ) |
1. Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027
2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027
3. Zhejiang-California International Nanosystems Institute, Hangzhou 310058 |
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Cite this article:
Qiang XU,Shulin ZHAN,Qilong ZHANG,Jiansong SHENG,Hui YANG. Preparation and Properties of Nano-silicone Marine Reinforced Concrete Permeable Protective Coating. Chinese Journal of Materials Research, 2014, 28(6): 443-447.
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Abstract With TEOS and MTES as precursors, nano-silicone permeable protective coating of marine concrete was prepared by acid/base two-step sol gel method where hydrochloric acid catalyzed silica sol was dropped into proportionally ammonia catalyzed base silica sol. The structure and properties of the coating were characterized by TEM, SEM, water absorption, chloride ion passed charge. The results show that for core-shell structure of SiO2 sol prepared by acid/base two-step, dot-pits were observed on the treated mortar sample surfaces, penetration depth of mixed sol coated mortars was 1.3 mm, 4 h water absorption of mortar samples were lower than 85% or more, 6h chloride ion passed charge of concrete samples reduced by 50% or more.
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Received: 23 November 2013
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| Fund: *Supported by National Science and Technology Support Program No. 2013BAJ10B05 and Marine Interdisciplinary Research Guide Fund of Zhejiang University No. 2012HY003B. |
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