期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 48, 期 -, 页码 708-716出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2013.07.038
关键词
Reinforced concrete; Silane; Hydrophobic treatment; Impregnation; Durability; Capillary; Absorption
资金
- AECOM
- EPSRC (through the Centre for Innovative and Collaborative Engineering at Loughborough University)
- Highways Agency
- Engineering and Physical Sciences Research Council [EP/G037272/1]
Silanes can act as hydrophobic pore liners for reinforced concrete (RC) structures. They can significantly reduce the depth of chloride penetration, a major cause of steel reinforcement corrosion:However, there is little published information on their long-term performance. Thirty-two concrete cores were extracted from eight full-scale RC bridge supporting cross-beams that were treated with silane 20 years ago. Their water absorption by capillarity was measured and compared with sixteen control cores extracted from four non-silane treated RC cross-beams constructed at the same time. Results show that silanes may provide a residual protective effect against water even after 20 years of service.
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