Comparison of the condition of steel fiber-reinforced shotcrete with water-glass and alkali-free activators after more than 20 years of service in a subsea road tunnel
نویسندگان
چکیده
The in-service condition of steel fiber-reinforced shotcrete installed more than 20 years ago as single-shell rock support lining in the Nordkapp subsea road tunnel was investigated. novelty this study is comparison with water–glass and alkali-free activators a saline groundwater environment. lowest density obtained at joints between two adjacent layers. In case accelerator, ettringite enrichment observed these joints. Leaching appeared to be main degradation mechanism outermost 10–15 cm towards traffic room.
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ژورنال
عنوان ژورنال: Construction and Building Materials
سال: 2022
ISSN: ['1879-0526', '0950-0618']
DOI: https://doi.org/10.1016/j.conbuildmat.2022.127090