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Journal of Chinese Society for Corrosion and protection  2021, Vol. 41 Issue (5): 712-716    DOI: 10.11902/1005.4537.2020.200
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Durability Analysis and Lifetime Calculation of Silane Impregnated Concrete Structure
WANG Pengsheng1(), LI Chuanfu2, NI Jingxu1
1.Key Laboratory of Harbor and Marine Structure Durability Technology, Ministry of Communications, CCCC Fourth Harbor Engineering Institute Co. Ltd. , Guangzhou 510230, China
2.Shandong High-speed Qingdao Highway Co. Ltd. , Qingdao 266000, China
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Abstract  

Silane protection is widely applied in the marine concrete structure nowadays. However, the lifetime of silane impregnated concrete structure is hard to be assessed accurately. In the present article, the durability and failure analysis of silane coatings were studied via exposure test and indoor accelerated corrosion test. Then a numerical model was established to quantitatively evaluate the feasible approaches for extending the lifetime of concrete structure with silane impregnating.

Key words:  silane      durability      numerical calculation     
Received:  20 October 2020     
ZTFLH:  TG174  
Fund: Science and Technology Plan of Shandong Provincial Department of Transportation(2019B42)
Corresponding Authors:  WANG Pengsheng     E-mail:  wpsh12598@163.com
About author:  WANG Pengsheng, E-mail: wpsh12598@163.com

Cite this article: 

WANG Pengsheng, LI Chuanfu, NI Jingxu. Durability Analysis and Lifetime Calculation of Silane Impregnated Concrete Structure. Journal of Chinese Society for Corrosion and protection, 2021, 41(5): 712-716.

URL: 

https://www.jcscp.org/EN/10.11902/1005.4537.2020.200     OR     https://www.jcscp.org/EN/Y2021/V41/I5/712

Fig.1  Chloride content with depth for specimens of different aging time after NaCl solution with 90 d (a) and 270 d (b) continuous immersion
Fig.2  Chloride content with depth for silane removed specimens of different NaCl solution with 90 d (a) and 270 d (b) continuous immersion
Fig.3  Chloride content with depth for 1 a (a), 3 a (b) and 5 a (c) exposure age specimens
Fig.4  Chloride content on the surface of silane impregnated concrete (a) and plain concrete (b) with exposure age
Fig.5  Chloride diffusion coefficient curves with exposure age
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