• ISSN 0258-2724
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WANG Chenxia, ZHANG Weize, CAO Fubo, HAN Huichao, SU Tian, XIAO Shengxian, QIN Shijie. Life Prediction and Sensitivity Analysis of Recycled Concrete Under Dry, Wet, Freeze-Thaw, and Salt Intrusion[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20240403
Citation: WANG Chenxia, ZHANG Weize, CAO Fubo, HAN Huichao, SU Tian, XIAO Shengxian, QIN Shijie. Life Prediction and Sensitivity Analysis of Recycled Concrete Under Dry, Wet, Freeze-Thaw, and Salt Intrusion[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20240403

Life Prediction and Sensitivity Analysis of Recycled Concrete Under Dry, Wet, Freeze-Thaw, and Salt Intrusion

doi: 10.3969/j.issn.0258-2724.20240403
  • Received Date: 27 Aug 2024
  • Accepted Date: 02 Mar 2026
  • Rev Recd Date: 20 Apr 2025
  • Available Online: 16 Mar 2026
  • To address the insufficient durability of recycled concrete structures in the Hetao irrigated saline soil region, a typical geomorphological environment in the area was simulated, and concrete specimens were placed in a dry, wet, and freeze-thaw environment to investigate the erosion regularity and mechanism of sodium sulfate. Concrete type, water-cement ratio, and sodium sulfate solution concentration were employed as experimental variables. The quality evaluation parameter ƞa and the dynamic elastic modulus evaluation parameter ƞb were selected as key evaluation parameters to establish a comprehensive damage evaluation index. Based on this, a two-parameter Weibull reliability analysis was conducted, and a sensitivity analysis of each influencing factor was performed using grey relational grade. The results show that ordinary concrete exhibits better erosion resistance than recycled concrete; after the fourth cycle, the ƞb value of ordinary concrete is four times that of recycled concrete. Furthermore, appropriately reducing the water-cement ratio can improve the erosion resistance of recycled concrete. Under the influence of multiple factors, the damage to recycled concrete is caused by the cumulative effects of sodium sulfate crystallization expansion and chemical corrosion. The sodium sulfate with a higher concentration leads to faster damage development. After three cycles, the ƞb value of the RC-0.46-0% group is still 0.051, while the ƞb value of the RC-0.46-10% group is −0.066, indicating that the specimen has already been destroyed. The Weibull distribution function can effectively describe the erosion damage process of recycled concrete. By establishing an accelerated life reliability function, the service life of the specimen can be intuitively predicted, and the prediction results are consistent with the experimental results. According to the analysis results of the grey relational grade, after four cycles, the ƞa value of the specimen with a water-cement ratio of 0.53 is 0.36 and 0.65 lower than that of the specimens with water-cement ratios of 0.46 and 0.39, respectively, while the ƞb values of the latter two groups of specimens are basically the same, Therefore, the water-cement ratio is the main factor influencing the durability of recycled concrete.

     

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  • [1]
    ZHANG Z Y, ZOU Y, YANG J, et al. Capillary rise height of sulfate in Portland-limestone cement concrete under physical attack: Experimental and modelling investigation[J]. Cement and Concrete Composites, 2022, 125: 104299. doi: 10.1016/j.cemconcomp.2021.104299
    [2]
    NAJJAR M F, NEHDI M L, SOLIMAN A M, et al. Damage mechanisms of two-stage concrete exposed to chemical and physical sulfate attack[J]. Construction and Building Materials, 2017, 137: 141-152. doi: 10.1016/j.conbuildmat.2017.01.112
    [3]
    NEHDI M L, SULEIMAN A R, SOLIMAN A M. Investigation of concrete exposed to dual sulfate attack[J]. Cement and Concrete Research, 2014, 64: 42-53. doi: 10.1016/j.cemconres.2014.06.002
    [4]
    RAHMAN M M, BASSUONI M T. Thaumasite sulfate attack on concrete: mechanisms, influential factors and mitigation[J]. Construction and Building Materials, 2014, 73: 652-662. doi: 10.1016/j.conbuildmat.2014.09.034
    [5]
    余红发, 刘连新, 曹敬党, 等. 东西部氯盐环境中混凝土的耐久性和服役寿命[J]. 沈阳建筑大学学报(自然科学版), 2022, 25(2): 124-130.

    YU Hongfa, LIU Lianxin, CAO Jingdang, et al. Durability and service life of concrete exposed to chloride environment of eastern and western China[J]. Journal of Shenyang Jianzhu University (Natural Science), 2022, 25(2): 124-130.
    [6]
    赵燕茹, 刘芳芳, 王磊, 等. 基于孔结构的单面冻后混凝土抗压强度模型研究[J]. 建筑材料学报, 2020, 23(6): 1328-1336, 1344.

    ZHAO Yanru, LIU Fangfang, WANG Lei, et al. Modeling of compressive strength of concrete based on pore structure under single-side freeze-thaw condition[J]. Journal of Building Materials, 2020, 23(6): 1328-1336,1344.
    [7]
    刘燕, 王泽坤, 李忠献, 等. 冻融-干湿耦合循环下粉煤灰混凝土损伤度分析[J]. 混凝土, 2020(5): 32-35, 39. doi: 10.3969/j.issn.1002-3550.2020.05.009

    LIU Yan, WANG Zekun, LI Zhongxian, et al. Analysis on the damage degree of fly ash concrete under freeze-thaw-dry-wet coupling cycle[J]. Concrete, 2020(5): 32-35,39. doi: 10.3969/j.issn.1002-3550.2020.05.009
    [8]
    孔骏, 韩敏, 丁永发, 等. 干湿循环和冻融循环作用下硫酸钠腐蚀对混凝土应力-应变曲线的影响[J]. 宁夏大学学报(自然科学版), 2022, 43(1): 51-55.

    KONG Jun, HAN Min, DING Yongfa, et al. Effect of sodium sulfate corrosion on stress-strain curve of concrete under dry wet cycle and freeze-thaw cycle[J]. Journal of Ningxia University (Natural Science Edition), 2022, 43(1): 51-55.
    [9]
    李文霞, 朱忠业. 干湿−冻融交替作用下混凝土受硫酸盐侵蚀研究[J]. 混凝土, 2017(5): 12-14, 18. doi: 10.3969/j.issn.1002-3550.2017.05.004

    LI Wenxia, ZHU Zhongye. Sulfate attack on concrete under alternate freeze-thaw and dry-wet cycling[J]. Concrete, 2017(5): 12-14,18. doi: 10.3969/j.issn.1002-3550.2017.05.004
    [10]
    中华人民共和国住房和城乡建设部. 普通混凝土长期性能和耐久性能试验方法标准: GB/T 50082—2009[S]. 北京: 中国建筑工业出版社, 2009.
    [11]
    胡杨. 河套湿地水文和植被特征及水体净化潜力[D]. 呼和浩特: 内蒙古农业大学, 2016.
    [12]
    景宇鹏, 李跃进, 高娃, 等. 不同利用方式河套平原盐碱土盐分特征[J]. 水土保持研究, 2020, 27(1): 372-379.

    JING Yupeng, LI Yuejin, GAO Wa, et al. Salt characteristics of saline-alkali soil in Hetao Plain with different utilization methods[J]. Research of Soil and Water Conservation, 2020, 27(1): 372-379.
    [13]
    武海荣. 混凝土结构耐久性环境区划与耐久性设计方法[D]. 杭州: 浙江大学, 2012.
    [14]
    中国气象局国家气象信息中心. 中国气象科学数据共享服务[DB/OL]. [2023-05-27]. http://data.cma.cn/.
    [15]
    中华人民共和国住房和城乡建设部, 国家市场监督管理总局. 混凝土物理力学性能试验方法标准: GB/T 50081—2019[S]. 北京: 中国建筑工业出版社, 2019.
    [16]
    路承功, 乔宏霞, 魏智强, 等. 盐渍土地区混凝土加速损伤劣化机理及基于Wiener过程可靠性分析[J]. 中国矿业大学学报, 2021, 50(2): 265-272, 288.

    LU Chenggong, QIAO Hongxia, WEI Zhiqiang, et al. Accelerated damage and deterioration mechanism of concrete in saline soil area and reliability analysis based on Wiener process[J]. Journal of China University of Mining & Technology, 2021, 50(2): 265-272,288.
    [17]
    甘磊, 吴健, 沈振中, 等. 硫酸盐和干湿循环作用下玄武岩纤维混凝土劣化规律[J]. 土木工程学报, 2021, 54(11): 37-46. doi: 10.15951/j.tmgcxb.2021.11.001

    GAN Lei, WU Jian, SHEN Zhenzhong, et al. Deterioration law of basalt fiber reinforced concrete under sulfate attack and dry-wet cycle[J]. China Civil Engineering Journal, 2021, 54(11): 37-46. doi: 10.15951/j.tmgcxb.2021.11.001
    [18]
    李福海, 黄绍宁, 肖赛, 等. 高温-干湿循环作用下混凝土分区抗硫酸盐侵蚀性能研究[J]. 西南交通大学学报, 2026, 61(1): 41-51.

    LI Fuhai, HUANG Shaoning, LIU Menghui, et al. Resistance against sulfate erosion of concrete partition under high temperature and dry−wet cycle[J]. Journal of Southwest Jiaotong University, 2026, 61(1): 41-51.
    [19]
    刘慕宸, 崔自治, 宋鑫. 硫酸钠-干湿−冻融共同作用对水泥土性能的影响[J]. 科学技术与工程, 2022, 22(29): 12977-12984. doi: 10.3969/j.issn.1671-1815.2022.29.034

    LIU Muchen, CUI Zizhi, SONG Xin. Effects of sodium sulfate on properties of cement-soil under dry-wet and freeze-thaw cycles[J]. Science Technology and Engineering, 2022, 22(29): 12977-12984. doi: 10.3969/j.issn.1671-1815.2022.29.034
    [20]
    WANG J G, ZHANG J X, CAO D D, et al. Comparison of recycled aggregate treatment methods on the performance for recycled concrete[J]. Construction and Building Materials, 2020, 234: 117366. doi: 10.1016/j.conbuildmat.2019.117366
    [21]
    刘超, 姚羿舟, 刘化威, 等. 硫酸盐干湿循环下再生复合微粉混凝土的劣化机理[J]. 建筑材料学报, 2022, 25(11): 1128-1135.

    LIU Chao, YAO Yizhou, LIU Huawei, et al. Deterioration mechanism of recycled composite powder concrete under dry-wet cycles of sulfate[J]. Journal of Building Materials, 2022, 25(11): 1128-1135.
    [22]
    孙金阳. 混凝土湿润与干燥过程中水分传输规律研究[D]. 杭州: 浙江大学, 2012.
    [23]
    乔宏霞, 杨安, 杨博, 等. 基于威布尔分布下纳米碳酸钙改性混凝土寿命预测研究[J]. 工业建筑, 2022, 52(1): 174-179.

    QIAO Hongxia, YANG An, YANG Bo, et al. Research on life prediction of nano-CaCO3 modified concrete based on weibull distribution[J]. Industrial Construction, 2022, 52(1): 174-179.
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