Determining the effective service life of silane treatments in concrete bridge decks

被引:56
作者
Moradllo, Mehdi Khanzadeh [1 ]
Sudbrink, Bryan [1 ]
Ley, M. Tyler [1 ]
机构
[1] Oklahoma State Univ, Dept Civil & Environm Engn, Stillwater, OK 74078 USA
关键词
Hydrophobic treatment; Mass transport; Corrosion; Durability; Chloride; REINFORCED-CONCRETE; MARINE-ENVIRONMENT; PERFORMANCE;
D O I
10.1016/j.conbuildmat.2016.04.132
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Silane is a commonly used surface treatment to reduce water entry into concrete. Only limited work has been done to show the effective lifespan of silane treatments. This work uses 360 cores taken from 60 bridge decks treated with silane that have been in-service between 6 and 20 years. Optical staining techniques showed that the average silane thickness started decreasing after 12 years of service. The deterioration primarily occurs from the bulk of the concrete towards the surface. This suggests that deterioration from the alkali pore solution of the concrete may be important. (c) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:121 / 127
页数:7
相关论文
共 37 条
  • [1] [Anonymous], 1995, Transportation Research Record, P54
  • [2] [Anonymous], 1987, SILICON COMPOUNDS RE
  • [3] Attanayaka U., 2002, Criteria and benefits of penetrating sealants for concrete bridge decks
  • [4] Surface treatments for concrete: assessment methods and reported performance
    Basheer, PAM
    Basheer, L
    Cleland, DJ
    Long, AE
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 1997, 11 (7-8) : 413 - 429
  • [5] Bentur A., 1997, STEEL CORROSION CONC, P123
  • [6] Bush TD, 1997, ACI MATER J, V94, P193
  • [7] Carter P.D., 1994, ACI SP, V151-5, P95
  • [8] Long-term performance of surface impregnation of reinforced concrete structures with silane
    Christodoulou, C.
    Goodier, C. I.
    Austin, S. A.
    Webb, J.
    Glass, G. K.
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2013, 48 : 708 - 716
  • [9] Water repellent surface impregnation for extension of service life of reinforced concrete structures in marine environments: The role of cracks
    Dai, Jian-Guo
    Akira, Y.
    Wittmann, F. H.
    Yokota, H.
    Zhang, Peng
    [J]. CEMENT & CONCRETE COMPOSITES, 2010, 32 (02) : 101 - 109
  • [10] Dow Corning, 2005, GUID SIL SOL DOW COR