Examination and construction on the mixing of lining concrete for tunnel entrance corresponding to type S of freezing damage countermeasures

11:40 AM - 11:50 AM

[VI-245] Examination and construction on the mixing of lining concrete for tunnel entrance corresponding to type S of freezing damage countermeasures

*kei takahashi¹, takayoshi shiina¹, yoshiaki atobe¹, tomoki misosaku¹, tetsuya oyamada² (1. Nishimatsu Construction, 2. Iwate University)

Keywords:Lining concrete, Freezing damage, Scaling, Amount of air, Sand percentage

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