Deterioration of concrete in railway tunnel suffering from sulfate attack |
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| Authors: | LONG Guang-cheng XIE You-jun DENG De-hua LI Xiao-kun |
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| Affiliation: | LONG Guang-cheng1,XIE You-jun1,DENG De-hua1,LI Xiao-kun21.School of Civil Engineering and Architecture,Central South University,Changsha 410075,China,2.Kunming Railway Bureau,Kunming 650011 |
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| Abstract: | For the sake of understanding the deterioration behavior of concrete in actual railway tunnel structures subjected to aggressive sulfate medium in practice,detailed field investigations and tested analysis on sprayed concrete linings of approximately 40-year-old railway tunnels in environments containing sulfate ion were carried out,respectively.The results show that the deterioration of concretes in the investigated area is serious,which involves complicated physicochemical process between the sulfate salt... |
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| Keywords: | sulfate attack concrete railway tunnel secondary sulfateminerals salt crystallization |
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