Effects of surface states on salt-frost scaling resistance of cement concrete

This study discussed influences of surface states of concrete on salt-frost durability. By using the Capillary suction of Deicing solution and Freeze-thaw test method(CDF), the effects of factors, such as solution saturation in capillary, surface property and load coupling were compared and analyzed...

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Main Authors: Hui Zhang, Peiwei Gao, Youqiang Pan, Zhixiang Zhang
Format: Article
Language:English
Published: Elsevier 2019-12-01
Series:Case Studies in Construction Materials
Online Access:http://www.sciencedirect.com/science/article/pii/S2214509519303894
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author Hui Zhang
Peiwei Gao
Youqiang Pan
Zhixiang Zhang
author_facet Hui Zhang
Peiwei Gao
Youqiang Pan
Zhixiang Zhang
author_sort Hui Zhang
collection DOAJ
description This study discussed influences of surface states of concrete on salt-frost durability. By using the Capillary suction of Deicing solution and Freeze-thaw test method(CDF), the effects of factors, such as solution saturation in capillary, surface property and load coupling were compared and analyzed. It is found that drying shrinkage exerts greater effects on salt-frost resistance of the concrete in comparison with solution saturation in capillary. According to the CDF test standard recommended by RILEM, the salt-frost test results of the surface formed with the partitions in the laboratory overestimate salt-frost resistance of the concrete in the actual situation. Scaled mass of the top surface of the molded concrete due to salt frost is about 50% larger than that of the surface formed with the partitions. Coupling effects of repeated load and salt-freezing cycles can aggravate salt-frost damages of the concrete. Keywords: Salt-freezing cycle, Saturation, Surface property, Load coupling
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spelling doaj.art-d5a3ce8d6a8b4b5ea3bd6232cc8c9e1d2022-12-22T00:10:48ZengElsevierCase Studies in Construction Materials2214-50952019-12-0111Effects of surface states on salt-frost scaling resistance of cement concreteHui Zhang0Peiwei Gao1Youqiang Pan2Zhixiang Zhang3Jiangsu SinoRoad Engineering Research Institute, Nanjing, Jiangsu, PR China; Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, PR ChinaNanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, PR China; Corresponding author.Jiangsu SinoRoad Engineering Research Institute, Nanjing, Jiangsu, PR ChinaJiangsu SinoRoad Engineering Research Institute, Nanjing, Jiangsu, PR ChinaThis study discussed influences of surface states of concrete on salt-frost durability. By using the Capillary suction of Deicing solution and Freeze-thaw test method(CDF), the effects of factors, such as solution saturation in capillary, surface property and load coupling were compared and analyzed. It is found that drying shrinkage exerts greater effects on salt-frost resistance of the concrete in comparison with solution saturation in capillary. According to the CDF test standard recommended by RILEM, the salt-frost test results of the surface formed with the partitions in the laboratory overestimate salt-frost resistance of the concrete in the actual situation. Scaled mass of the top surface of the molded concrete due to salt frost is about 50% larger than that of the surface formed with the partitions. Coupling effects of repeated load and salt-freezing cycles can aggravate salt-frost damages of the concrete. Keywords: Salt-freezing cycle, Saturation, Surface property, Load couplinghttp://www.sciencedirect.com/science/article/pii/S2214509519303894
spellingShingle Hui Zhang
Peiwei Gao
Youqiang Pan
Zhixiang Zhang
Effects of surface states on salt-frost scaling resistance of cement concrete
Case Studies in Construction Materials
title Effects of surface states on salt-frost scaling resistance of cement concrete
title_full Effects of surface states on salt-frost scaling resistance of cement concrete
title_fullStr Effects of surface states on salt-frost scaling resistance of cement concrete
title_full_unstemmed Effects of surface states on salt-frost scaling resistance of cement concrete
title_short Effects of surface states on salt-frost scaling resistance of cement concrete
title_sort effects of surface states on salt frost scaling resistance of cement concrete
url http://www.sciencedirect.com/science/article/pii/S2214509519303894
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