工程科学学报.第43卷，第5期：647-655.2021年5月 Chinese Journal of Engineering,Vol.43,No.5:647-655,May 2021 https://doi.org/10.13374/j.issn2095-9389.2020.06.21.002;http://cje.ustb.edu.cn 塑管一混凝土界面密闭性能改善措施 王俊颜区，周田，吕梁胜，杨全兵 同济大学先进土木工程材料教育部重点实验室，上海201804 ☒通信作者，E-mail:14529@tongji.edu.cn 摘要为改善塑管混凝土结构的界面密闭性能，研究了在塑管-混凝土界面粘贴一种双面压敏胶带一Preprufe胶带的作 用.通过界面黏结强度、界面渗水高度和界面透气性实验，测得塑管混凝土结构的界面黏结强度、界面渗水高度、气体压力一 时间衰减曲线，推导出界面渗透指数.试验结果表明.界面黏结强度与粘贴胶带的宽度的关系可初步认为符合幂函数分布， 压敏性粘合剂胶层与液态混凝土在硬化过程中形成的黏结强度远大于普通黏性层与塑管间的黏结强度.粘贴Preprufe胶带 可显著提高塑管-混凝土界面抗渗能力.界面渗透指数随粘贴胶带的宽度增大呈明显的递减趋势，粘贴220m宽胶带的塑 管混凝土试件界面渗透指数仅为基准塑管混凝土试件的2.86%.Preprufe双面压敏胶带在改善塑管-混凝土界面密闭性能上 有良好的表现.在工程应用中可综合考虑所需效果和价格成本来选取粘贴胶带的宽度 关键词塑管-混凝土界面：双面压敏胶带：界面黏结强度；界面渗水高度；界面透气性 分类号TU528.0 Improvement of plastic pipe-concrete interface impermeability WANG Jun-yan,ZHOU Tian,LU Liang-sheng,YANG Quan-bing Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Tongji University,Shanghai 201804,China Corresponding author,E-mail:14529@tongji.edu.cn ABSTRACT Concrete structures,such as bridge piers and pile foundations,in tidal/splash zones and soil-air transition zones in saline environments often suffer more severe structural corrosion and reinforcement corrosion than the structures completely in water,soil,or air.The application of plastic-pipe concrete can effectively solve this problem.Plastic-pipe concrete is formed by pouring concrete into a large-diameter plastic pipe with a certain structural size.Plastic pipes can protect the bridge piers and eliminate the water level change area and the soil-air junction area in structural design,to realize the integrated anti-corrosion protection of the bridge piers in the saline environment.The anti-corrosion protection effect of the plastic-pipe-concrete system depends on the impermeability of the plastic pipe-concrete interface.The difference in linear expansion coefficient between the plastic pipe and concrete and the shrinkage of the core concrete will damage the bonding layer between the plastic pipe and concrete,consequently affecting the interface impermeability. To improve the impermeability of the plastic pipe-concrete interface,the effect of a pressure-sensitive adhesive tape(Preprufe double- sided tape)attached to the plastic pipe-concrete interface was studied.Experiments were conducted to determine the interfacial bond strength,interfacial water penetration height,and interfacial air permeability,and the gas pressure-time decay curve was measured,and the interface permeability index was deduced.The experiment results show that the relationship between the interfacial bond strength and the adhesive tape width can be preliminarily considered as a power function distribution.The bond strength formed between the pressure-sensitive adhesive layer and the liquid concrete during the hardening process is much greater than that between the ordinary adhesive tape and the plastic pipe.Pasting the Preprufe tapes can significantly improve the impermeability of the plastic pipe-concrete 收稿日期：2020-06-21 基金项目：国家自然科学基金青年基金资助项目(51609172)：浙江省交通运输厅科技资助项目(2019-GCKY-01)塑管−混凝土界面密闭性能改善措施 王俊颜苣，周    田，吕梁胜，杨全兵 同济大学先进土木工程材料教育部重点实验室，上海 201804 苣通信作者，E-mail：14529@tongji.edu.cn 摘    要    为改善塑管混凝土结构的界面密闭性能，研究了在塑管−混凝土界面粘贴一种双面压敏胶带——Preprufe 胶带的作 用. 通过界面黏结强度、界面渗水高度和界面透气性实验，测得塑管混凝土结构的界面黏结强度、界面渗水高度、气体压力− 时间衰减曲线，推导出界面渗透指数. 试验结果表明，界面黏结强度与粘贴胶带的宽度的关系可初步认为符合幂函数分布， 压敏性粘合剂胶层与液态混凝土在硬化过程中形成的黏结强度远大于普通黏性层与塑管间的黏结强度. 粘贴 Preprufe 胶带 可显著提高塑管−混凝土界面抗渗能力. 界面渗透指数随粘贴胶带的宽度增大呈明显的递减趋势，粘贴 220 mm 宽胶带的塑 管混凝土试件界面渗透指数仅为基准塑管混凝土试件的 2.86%. Preprufe 双面压敏胶带在改善塑管−混凝土界面密闭性能上 有良好的表现. 在工程应用中可综合考虑所需效果和价格成本来选取粘贴胶带的宽度. 关键词    塑管−混凝土界面；双面压敏胶带；界面黏结强度；界面渗水高度；界面透气性 分类号    TU528.0 Improvement of plastic pipe–concrete interface impermeability WANG Jun-yan苣 ，ZHOU Tian，LÜ Liang-sheng，YANG Quan-bing Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China 苣 Corresponding author, E-mail: 14529@tongji.edu.cn ABSTRACT    Concrete structures, such as bridge piers and pile foundations, in tidal/splash zones and soil–air transition zones in saline environments often suffer more severe structural corrosion and reinforcement corrosion than the structures completely in water, soil, or air. The application of plastic-pipe concrete can effectively solve this problem. Plastic-pipe concrete is formed by pouring concrete into a large-diameter plastic pipe with a certain structural size. Plastic pipes can protect the bridge piers and eliminate the water level change area and the soil–air junction area in structural design, to realize the integrated anti-corrosion protection of the bridge piers in the saline environment.  The  anti-corrosion  protection  effect  of  the  plastic-pipe –concrete  system  depends  on  the  impermeability  of  the  plastic pipe –concrete interface. The difference in linear expansion coefficient between the plastic pipe and concrete and the shrinkage of the core concrete will damage the bonding layer between the plastic pipe and concrete, consequently affecting the interface impermeability. To improve the impermeability of the plastic pipe–concrete interface, the effect of a pressure-sensitive adhesive tape (Preprufe double￾sided tape) attached to the plastic pipe –concrete interface was studied. Experiments were conducted to determine the interfacial bond strength, interfacial water penetration height, and interfacial air permeability, and the gas pressure–time decay curve was measured, and the interface permeability index was deduced. The experiment results show that the relationship between the interfacial bond strength and the adhesive tape width can be preliminarily considered as a power function distribution. The bond strength formed between the pressure-sensitive adhesive layer and the liquid concrete during the hardening process is much greater than that between the ordinary adhesive tape and the plastic pipe. Pasting the Preprufe tapes can significantly improve the impermeability of the plastic pipe–concrete 收稿日期: 2020−06−21 基金项目: 国家自然科学基金青年基金资助项目（51609172）；浙江省交通运输厅科技资助项目（2019-GCKY-01） 工程科学学报，第 43 卷，第 5 期：647−655，2021 年 5 月 Chinese Journal of Engineering, Vol. 43, No. 5: 647−655, May 2021 https://doi.org/10.13374/j.issn2095-9389.2020.06.21.002; http://cje.ustb.edu.cn