Mechanical Properties of Cement Mortar after Dry–Wet Cycles and High Temperature
The dry–wet cycle and high temperature exposure are important factors affecting the normal use and durability of concrete structures. The objective of this work is to investigate the mechanical properties of cement mortar specimens after combinations of dry–wet cycles and high temperature exposures, uniaxial compressive tests on cement mortar specimens were carried out under the following two sets of conditions: (1) high temperature treatment followed by a dry–wet cycle and (2) a dry–wet cycle followed by high temperature treatment. The results show that the compressive strength of specimens increases with the number of dry–wet cycles. After a dry–wet cycle and then a high temperature treatment procedure, the compressive strength of a specimen will first decrease and then increase with the number of dry–wet cycles. The strain at the peak stress of cement mortar decreases as the number of dry–wet cycles increases. At present, there are few research results about the mechanical properties of concrete first after combinations of dry–wet cycles and high temperature exposures. The work in this paper can enrich the results in this area.
Li, Gen Feng, and Xiang Dong Shen. “A Study of the Durability of Aeolian Sand Powder Concrete Under the Coupling Effects of Freeze–Thaw and Dry–Wet Conditions.” JOM 71, no. 6 (April 23, 2019): 1962–1974. doi:10.1007/s11837-019-03440-9.
Wei, Mu-Wang, Jian-He Xie, Huan Zhang, and Jiang-Lin Li. “Bond-Slip Behaviors of BFRP-to-Concrete Interfaces Exposed to Wet/dry Cycles in Chloride Environment.” Composite Structures 219 (July 2019): 185–193. doi:10.1016/j.compstruct.2019.03.049.
Yan, Changgen, Zhiquan Zhang, and Yanlin Jing. “Characteristics of Strength and Pore Distribution of Lime-Flyash Loess Under Freeze-Thaw Cycles and Dry-Wet Cycles.” Arabian Journal of Geosciences 10, no. 24 (December 2017). doi:10.1007/s12517-017-3313-5.
Li, Yue, Tongfei Shi, Yaqiang Li, Weiliang Bai, and Hui Lin. “Damage of Magnesium Potassium Phosphate Cement Under Dry and Wet Cycles and Sulfate Attack.” Construction and Building Materials 210 (June 2019): 111–117. doi:10.1016/j.conbuildmat.2019.03.213.
Chen, Fei, Jianming Gao, Bing Qi, Daman Shen, and Luyang Li. “Degradation Progress of Concrete Subject to Combined Sulfate-Chloride Attack Under Drying-Wetting Cycles and Flexural Loading.” Construction and Building Materials 151 (October 2017): 164–171. doi:10.1016/j.conbuildmat.2017.06.074.
Ma, Haiyan, Wei Gong, Hongfa Yu, and Wei Sun. “Durability of Concrete Subjected to Dry-Wet Cycles in Various Types of Salt Lake Brines.” Construction and Building Materials 193 (December 2018): 286–294. doi:10.1016/j.conbuildmat.2018.10.211.
Liu, Hao, Haoliang Huang, Xintong Wu, Huixin Peng, Zhaoheng Li, Jie Hu, and Qijun Yu. “Effects of External Multi-Ions and Wet-Dry Cycles in a Marine Environment on Autogenous Self-Healing of Cracks in Cement Paste.” Cement and Concrete Research 120 (June 2019): 198–206. doi:10.1016/j.cemconres.2019.03.014.
Yin, Shiping, Lei Jing, Mengti Yin, and Bo Wang. “Mechanical Properties of Textile Reinforced Concrete Under Chloride Wet-Dry and Freeze-Thaw Cycle Environments.” Cement and Concrete Composites 96 (February 2019): 118–127. doi:10.1016/j.cemconcomp.2018.11.020.
Sahmaran, M., T.K. Erdem, and I.O. Yaman. “Sulfate Resistance of Plain and Blended Cements Exposed to Wetting–drying and Heating–cooling Environments.” Construction and Building Materials 21, no. 8 (August 2007): 1771–1778. doi:10.1016/j.conbuildmat.2006.05.012.
Gong, Jian, Jian Cao, and Yuan-feng Wang. “Effects of Sulfate Attack and Dry-Wet Circulation on Creep of Fly-Ash Slag Concrete.” Construction and Building Materials 125 (October 2016): 12–20. doi:10.1016/j.conbuildmat.2016.08.023.
Wu, Jin, Hongming Li, Zhe Wang, and Jingjing Liu. “Transport Model of Chloride Ions in Concrete Under Loads and Drying-Wetting Cycles.” Construction and Building Materials 112 (June 2016): 733–738. doi:10.1016/j.conbuildmat.2016.02.167.
Du, Hongxiu, Jia Wu, Gaili Liu, Huiping Wu, and Ruizhen Yan. “Detection of Thermophysical Properties for High Strength Concrete after Exposure to High Temperature.” Journal of Wuhan University of Technology-Mater. Sci. Ed. 32, no. 1 (February 2017): 113–120. doi:10.1007/s11595-017-1568-z.
Khan, M. S., and H. Abbas. “Effect of Elevated Temperature on the Behavior of High Volume Fly Ash Concrete.” KSCE Journal of Civil Engineering 19, no. 6 (December 12, 2014): 1825–1831. doi:10.1007/s12205-014-1092-z.
Meng, Ercong, Yalin Yu, Jun Yuan, Ke Qiao, and Yisheng Su. “Triaxial Compressive Strength Experiment Study of Recycled Aggregate Concrete after High Temperatures.” Construction and Building Materials 155 (November 2017): 542–549. doi:10.1016/j.conbuildmat.2017.08.101.
Li, Z.W., Xu, J.Y., Bai, E.L. “Static and dynamic mechanical properties of concrete after high temperature exposure.” Materials Science and Engineering A 544, no.15 (May 2012): 27-32. doi:10.1016/j.msea.2012.02.058.
Liu, Ziqing, Yuzhuo Wang, Guoqiang Li, Jian Jiang, and Chuanguo Fu. “Mechanical Behavior of Cross-Shaped Steel Reinforced Concrete Columns after Exposure to High Temperatures.” Fire Safety Journal 108 (September 2019): 102857. doi:10.1016/j.firesaf.2019.102857.
Zhai, Chaochen, Li Chen, Qin Fang, Wensu Chen, and Xiquan Jiang. “Experimental Study of Strain Rate Effects on Normal Weight Concrete after Exposure to Elevated Temperature.” Materials and Structures 50, no. 1 (August 10, 2016). doi:10.1617/s11527-016-0879-4.
Arioz, Omer. “Effects of Elevated Temperatures on Properties of Concrete.” Fire Safety Journal 42, no. 8 (November 2007): 516–522. doi:10.1016/j.firesaf.2007.01.003.
Ma, Qianmin, Rongxin Guo, Zhiman Zhao, Zhiwei Lin, and Kecheng He. “Mechanical Properties of Concrete at High temperature—A Review.” Construction and Building Materials 93 (September 2015): 371–383. doi:10.1016/j.conbuildmat.2015.05.131.
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