Citation: | (CHANG Haifeng, YANG Lin, ZHAO Qi, et al. Effects of epoxy resin pre-curing in low-temperature environments on the repair performance of wet cracks in concrete[J]. Hydro-Science and Engineering, 2025(in Chinese)). DOI: 10.12170/20240319001 |
Cracking in hydraulic concrete is often accompanied by water leakage, and crack grouting repairs are typically performed during low-temperature seasons. To investigate the effect of epoxy resin pre-curing under prolonged grouting conditions in low-temperature environments on the repair efficiency of wet cracks, a low-temperature pre-reaction method was used to simulate the curing process of epoxy resin in a grouting container. The effects of pre-curing on slurry properties, cured material properties, repaired concrete performance, and microstructure were studied. Results indicate that after low-temperature pre-curing, the exothermic temperature rise of the slurry decreased by 38.0%, and the shrinkage rate of the cured material reduced by 12.0%. Additionally, the compressive and tensile strengths of the cured material increased by 2.8% and 8.9%, respectively. For repaired concrete, the wet bond strength and splitting tensile strength improved by up to 34.3% and 46.9%, respectively, with failure modes shifting from crack surface fractures to substrate fractures. Compressive strength recovery reached 100%. Scanning electron microscopy revealed that the microdefects in the cured epoxy resin were significantly reduced, and the density and uniformity were markedly enhanced. Therefore, in low-temperature environments, lowering the grouting rate and extending the grouting duration can effectively improve the repair performance of wet cracks in concrete.
[1] |
戴永琪, 刘晓青. 钢筋混凝土结构裂缝宽度计算[J]. 水利水运工程学报,2023(6):101-108. (DAI Yongqi, LIU Xiaoqing. Research on calculation method of crack width of reinforced concrete[J]. Hydro-Science and Engineering, 2023(6): 101-108. (in Chinese) doi: 10.12170/20220601002
DAI Yongqi, LIU Xiaoqing. Research on calculation method of crack width of reinforced concrete[J]. Hydro-Science and Engineering, 2023(6): 101-108. (in Chinese) doi: 10.12170/20220601002
|
[2] |
张秋宇, 王立成. 基于能量法的水环境混凝土疲劳裂缝扩展模型[J]. 水利水运工程学报,2020(3):106-113. (ZHANG Qiuyu, WANG Licheng. Fatigue crack propagation model of concrete under water pressure based on energy approach[J]. Hydro-Science and Engineering, 2020(3): 106-113. (in Chinese) doi: 10.12170/20190303001
ZHANG Qiuyu, WANG Licheng. Fatigue crack propagation model of concrete under water pressure based on energy approach[J]. Hydro-Science and Engineering, 2020(3): 106-113. (in Chinese) doi: 10.12170/20190303001
|
[3] |
王思瑶, 胡少伟. 内部裂缝缺陷对混凝土断裂性能的影响[J]. 水利水运工程学报,2020(5):96-102. (WANG Siyao, HU Shaowei. Effect of internal crack defects on fracture properties of concrete[J]. Hydro-Science and Engineering, 2020(5): 96-102. (in Chinese) doi: 10.12170/20190923001
WANG Siyao, HU Shaowei. Effect of internal crack defects on fracture properties of concrete[J]. Hydro-Science and Engineering, 2020(5): 96-102. (in Chinese) doi: 10.12170/20190923001
|
[4] |
吴玉生, 陈梅红, 杨宗强. 水下及潮湿环境下混凝土修补材料的研究[J]. 新型建筑材料,2017,44(4):129-131,134. (WU Yusheng, CHEN Meihong, YANG Zongqiang. Study on the concrete repair materials underwater and moisture environment[J]. New Building Materials, 2017, 44(4): 129-131,134. (in Chinese) doi: 10.3969/j.issn.1001-702X.2017.04.034
WU Yusheng, CHEN Meihong, YANG Zongqiang. Study on the concrete repair materials underwater and moisture environment[J]. New Building Materials, 2017, 44(4): 129-131,134. (in Chinese) doi: 10.3969/j.issn.1001-702X.2017.04.034
|
[5] |
李铮, 李宏恩, 张安富, 等. 混凝土坝坝体渗漏水下修复处理及效果评价[J]. 水利水运工程学报,2022(1):137-143. (LI Zheng, LI Hongen, ZHANG Anfu, et al. Dam body leakage subaqueous remediation and evaluation of concrete dam[J]. Hydro-Science and Engineering, 2022(1): 137-143. (in Chinese) doi: 10.12170/20210202003
LI Zheng, LI Hongen, ZHANG Anfu, et al. Dam body leakage subaqueous remediation and evaluation of concrete dam[J]. Hydro-Science and Engineering, 2022(1): 137-143. (in Chinese) doi: 10.12170/20210202003
|
[6] |
蒋晓明, 颉志强, 徐航. 通水冷却措施对碾压混凝土坝施工期温度应力及防裂影响研究[J]. 华北水利水电大学学报(自然科学版),2023,44(6):87-95. (JIANG Xiaoming, XIE Zhiqiang, XU Hang. Study on the influence of water cooling measures on temperature stress and crack prevention of roller-compacted concrete dam during construction[J]. Journal of North China University of Water Resources and Electric Power (Natural Science Edition), 2023, 44(6): 87-95. (in Chinese)
JIANG Xiaoming, XIE Zhiqiang, XU Hang. Study on the influence of water cooling measures on temperature stress and crack prevention of roller-compacted concrete dam during construction[J]. Journal of North China University of Water Resources and Electric Power (Natural Science Edition), 2023, 44(6): 87-95. (in Chinese)
|
[7] |
胡小勇. 改性环氧修复材料在渠道衬砌板潮湿界面的修复性能试验[J]. 水利科学与寒区工程,2023,6(7):33-36. (HU Xiaoyong. Research on the repair performance of modified epoxy repair materials at the wet interface of canal lining plates[J]. Hydro Science and Cold Zone Engineering, 2023, 6(7): 33-36. (in Chinese) doi: 10.3969/j.issn.2096-5419.2023.07.009
HU Xiaoyong. Research on the repair performance of modified epoxy repair materials at the wet interface of canal lining plates[J]. Hydro Science and Cold Zone Engineering, 2023, 6(7): 33-36. (in Chinese) doi: 10.3969/j.issn.2096-5419.2023.07.009
|
[8] |
裴须强, 尹润平, 朱玉雪. 可用于潮湿界面修补的环氧树脂砂浆的研制[J]. 新型建筑材料,2021,48(1):84-88. (PEI Xuqiang, YIN Runping, ZHU Yuxue. Preparation of epoxy resin mortar applicable to moist interface repair[J]. New Building Materials, 2021, 48(1): 84-88. (in Chinese)
PEI Xuqiang, YIN Runping, ZHU Yuxue. Preparation of epoxy resin mortar applicable to moist interface repair[J]. New Building Materials, 2021, 48(1): 84-88. (in Chinese)
|
[9] |
苏张妍. 高渗透型灌浆材料的研制及其改性研究[D]. 广州: 广东工业大学, 2008. (SU Zhangyan. Development of high permeability grouting material and their modified research[D]. Guangzhou: Guangdong University of Technology, 2008. (in Chinese)
SU Zhangyan. Development of high permeability grouting material and their modified research[D]. Guangzhou: Guangdong University of Technology, 2008. (in Chinese)
|
[10] |
MAKEN D D, LÉGER P, ROTH S N. Seasonal thermal cracking of concrete dams in northern regions[J]. Journal of Performance of Constructed Facilities, 2014, 28(4): 04014014. doi: 10.1061/(ASCE)CF.1943-5509.0000483
|
[11] |
曾娟娟, 杨元龙, 马哲. 低温固化环氧树脂灌浆材料的性能研究[J]. 新型建筑材料,2017,44(10):112-115. (ZENG Juanjuan, YANG Yuanlong, MA Zhe. Study on the properties of low-temperature curing epoxy-resin grouting material[J]. New Building Materials, 2017, 44(10): 112-115. (in Chinese) doi: 10.3969/j.issn.1001-702X.2017.10.029
ZENG Juanjuan, YANG Yuanlong, MA Zhe. Study on the properties of low-temperature curing epoxy-resin grouting material[J]. New Building Materials, 2017, 44(10): 112-115. (in Chinese) doi: 10.3969/j.issn.1001-702X.2017.10.029
|
[12] |
冯李, 刘戎韬, 田甜, 等. 低温环境下低粘度裂缝修复环氧胶粘剂的研究[J]. 热固性树脂,2022,37(1):12-15. (FENG Li, LIU Rongtao, TIAN Tian, et al. Study on low viscosity epoxy adhesive for repairing concrete crack at low temperature[J]. Thermosetting Resin, 2022, 37(1): 12-15. (in Chinese)
FENG Li, LIU Rongtao, TIAN Tian, et al. Study on low viscosity epoxy adhesive for repairing concrete crack at low temperature[J]. Thermosetting Resin, 2022, 37(1): 12-15. (in Chinese)
|
[13] |
易进广. 地下室现浇混凝土顶板裂缝渗漏处理工艺[J]. 中国建筑防水,2018(10):20-23. (YI Jinguang. Leakage treatment construction for cracks in cast-in-place concrete roof of basement[J]. China Building Waterproofing, 2018(10): 20-23. (in Chinese)
YI Jinguang. Leakage treatment construction for cracks in cast-in-place concrete roof of basement[J]. China Building Waterproofing, 2018(10): 20-23. (in Chinese)
|
[14] |
王晓洁, 谢群炜, 张炜, 等. 环氧树脂基体固化研究[J]. 玻璃钢/复合材料,2001(2):10-12. (WANG Xiaojie, XIE Qunwei, ZHANG Wei, et al. Study of curing reaction of epoxy formula[J]. Fiber Reinforced Plastics/Composite, 2001(2): 10-12. (in Chinese)
WANG Xiaojie, XIE Qunwei, ZHANG Wei, et al. Study of curing reaction of epoxy formula[J]. Fiber Reinforced Plastics/Composite, 2001(2): 10-12. (in Chinese)
|
[15] |
韩子豪, 乔小亮, 张远. 预固化温度对两种双酚型环氧树脂固化放热的影响[J]. 纤维复合材料,2020,37(2):9-11, 8. (HAN Zihao, QIAO Xiaoliang, ZHANG Yuan. Effect of pre-curing temperature on curing exotherm of two bisphenol epoxy resins[J]. Fiber Composites, 2020, 37(2): 9-11, 8. (in Chinese) doi: 10.3969/j.issn.1003-6423.2020.02.003
HAN Zihao, QIAO Xiaoliang, ZHANG Yuan. Effect of pre-curing temperature on curing exotherm of two bisphenol epoxy resins[J]. Fiber Composites, 2020, 37(2): 9-11, 8. (in Chinese) doi: 10.3969/j.issn.1003-6423.2020.02.003
|
[16] |
CZADERSKI C, MARTINELLI E, MICHELS J, et al. Effect of curing conditions on strength development in an epoxy resin for structural strengthening[J]. Composites Part B: Engineering, 2012, 43(2): 398-410. doi: 10.1016/j.compositesb.2011.07.006
|
[17] |
LYU J X, LIU T, XI Z H, et al. Effect of pre-curing process on epoxy resin foaming using carbon dioxide as blowing agent[J]. Journal of Cellular Plastics, 2017, 53(2): 181-197. doi: 10.1177/0021955X16639235
|
[18] |
MA H L, ZHANG X, JU F F, et al. A study on curing kinetics of nano-phase modified epoxy resin[J]. Scientific Reports, 2018, 8: 3045. doi: 10.1038/s41598-018-21208-0
|
[19] |
张国新, 刘毅, 解敏, 等. 高掺粉煤灰混凝土的水化热温升组合函数模型及其应用[J]. 水力发电学报,2012,31(4):201-206. (ZHANG Guoxin, LIU Yi, XIE Min, et al. Hydration heat combined function model of high fly-ash concrete and its application in engineering[J]. Journal of Hydroelectric Engineering, 2012, 31(4): 201-206. (in Chinese)
ZHANG Guoxin, LIU Yi, XIE Min, et al. Hydration heat combined function model of high fly-ash concrete and its application in engineering[J]. Journal of Hydroelectric Engineering, 2012, 31(4): 201-206. (in Chinese)
|
[20] |
娄诗建, 成克雄, 张文胜, 等. 堆石混凝土重力坝全过程温度监测分析[J]. 水利与建筑工程学报,2024,22(1):90-100. (LOU Shijian, CHENG Kexiong, ZHANG Wensheng, et al. Temperature monitoring and analysis of rockfill concrete gravity dam in shibahe reservoir[J]. Journal of Water Resources and Architectural Engineering, 2024, 22(1): 90-100. (in Chinese) doi: 10.3969/j.issn.1672-1144.2024.01.013
LOU Shijian, CHENG Kexiong, ZHANG Wensheng, et al. Temperature monitoring and analysis of rockfill concrete gravity dam in shibahe reservoir[J]. Journal of Water Resources and Architectural Engineering, 2024, 22(1): 90-100. (in Chinese) doi: 10.3969/j.issn.1672-1144.2024.01.013
|
[21] |
林锋, 赵妮, 孙粤琳, 等. 新疆某混凝土重力坝运行期温度场和应力场反馈分析[J]. 中国水利水电科学研究院学报,2020,18(5):354-360. (LIN Feng, ZHAO Ni, SUN Yuelin, et al. Feedback research on temperature and stress field of concrete gravity dam in Xinjiang during operation period[J]. Journal of China Institute of Water Resources and Hydropower Research, 2020, 18(5): 354-360. (in Chinese)
LIN Feng, ZHAO Ni, SUN Yuelin, et al. Feedback research on temperature and stress field of concrete gravity dam in Xinjiang during operation period[J]. Journal of China Institute of Water Resources and Hydropower Research, 2020, 18(5): 354-360. (in Chinese)
|
[22] |
KHOUN L, HUBERT P. Cure shrinkage characterization of an epoxy resin system by two in situ measurement methods[J]. Polymer Composites, 2010, 31(9): 1603-1610. doi: 10.1002/pc.20949
|
[23] |
MINTY R F, THOMASON J L, YANG L, et al. Development and application of novel technique for characterising the cure shrinkage of epoxy resins[J]. Polymer Testing, 2019, 73: 316-326. doi: 10.1016/j.polymertesting.2018.11.045
|
[24] |
SZEWCZAK A, ŁAGÓD G. Adhesion of modified epoxy resin to a concrete surface[J]. Materials, 2022, 15(24): 8961. doi: 10.3390/ma15248961
|
[25] |
廖婉蓉. 用于潮湿及水下混凝土修补的环氧类材料适用性研究[D]. 长沙: 长沙理工大学, 2018. (LIAO Wanrong. Applicability research on epoxy materials used to wet and underwater concrete repairing[D]. Changsha: Changsha University of Science & Technology, 2018. (in Chinese)
LIAO Wanrong. Applicability research on epoxy materials used to wet and underwater concrete repairing[D]. Changsha: Changsha University of Science & Technology, 2018. (in Chinese)
|
[26] |
张立艳. 可水下固化环氧砂浆的制备与性能研究[J]. 新型建筑材料,2017,44(12):70-73. (ZHANG Liyan. Preparation and property research of underwater curing epoxy mortar[J]. New Building Materials, 2017, 44(12): 70-73. (in Chinese) doi: 10.3969/j.issn.1001-702X.2017.12.020
ZHANG Liyan. Preparation and property research of underwater curing epoxy mortar[J]. New Building Materials, 2017, 44(12): 70-73. (in Chinese) doi: 10.3969/j.issn.1001-702X.2017.12.020
|
[27] |
GUO S Y, ZHANG X, CHEN J Z, et al. Mechanical and interface bonding properties of epoxy resin reinforced Portland cement repairing mortar[J]. Construction and Building Materials, 2020, 264: 120715. doi: 10.1016/j.conbuildmat.2020.120715
|
[28] |
YING G G. Bonding behaviour and failure mechanism of damaged cement concrete repaired using epoxy-based concrete[J]. Ceramics-Silikaty, 2021: 36-42.
|
[29] |
刘方, 徐玲玲, 唐明述. 黏结界面的粗糙度和潮湿程度对环氧修补砂浆修补效果的影响[J]. 南京工业大学学报(自然科学版),2013,35(5):36-41. (LIU Fang, XU Lingling, TANG Mingshu. Effects of interfacial roughness and wetness on repair effectiveness of epoxy resin based repairing mortar[J]. Journal of Nanjing University of Technology (Natural Science Edition), 2013, 35(5): 36-41. (in Chinese)
LIU Fang, XU Lingling, TANG Mingshu. Effects of interfacial roughness and wetness on repair effectiveness of epoxy resin based repairing mortar[J]. Journal of Nanjing University of Technology (Natural Science Edition), 2013, 35(5): 36-41. (in Chinese)
|
[30] |
于腾. 环氧树脂灌浆修补混凝土裂缝试验研究[D]. 北京: 北京工业大学, 2016. (YU Teng. The experimental study of repairing concrete cracks with epoxy resin grouting[D]. Beijing: Beijing University of Technology, 2016. (in Chinese)
YU Teng. The experimental study of repairing concrete cracks with epoxy resin grouting[D]. Beijing: Beijing University of Technology, 2016. (in Chinese)
|
[31] |
张远淼, 余江滔, 陆洲导. 混凝土-环氧树脂黏结界面的断裂性能分析[J]. 同济大学学报(自然科学版),2014,42(7):1031-1037. (ZHANG Yuanmiao, YU Jiangtao, LU Zhoudao. Analysis on fracture properties of concrete-epoxy interface[J]. Journal of Tongji University (Natural Science), 2014, 42(7): 1031-1037. (in Chinese)
ZHANG Yuanmiao, YU Jiangtao, LU Zhoudao. Analysis on fracture properties of concrete-epoxy interface[J]. Journal of Tongji University (Natural Science), 2014, 42(7): 1031-1037. (in Chinese)
|
[32] |
王冬, 方绪顺, 石明建, 等. 混凝土裂缝用环氧树脂灌浆材料的研究[J]. 新型建筑材料,2015,42(7):69-72. (WANG Dong, FANG Xushun, SHI Mingjian, et al. Study on epoxy grouting resin for concrete crack[J]. New Building Materials, 2015, 42(7): 69-72. (in Chinese) doi: 10.3969/j.issn.1001-702X.2015.07.018
WANG Dong, FANG Xushun, SHI Mingjian, et al. Study on epoxy grouting resin for concrete crack[J]. New Building Materials, 2015, 42(7): 69-72. (in Chinese) doi: 10.3969/j.issn.1001-702X.2015.07.018
|