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固化体系对预制节段拼接胶性能的影响研究

作者：周洪芝1，罗仕刚1，薛雪雪1，魏莹1，姚淑芳2，3，陆栩梁4

关键字：固化,体系,对,预制,节段,拼接,胶,性能,的,

　
（1.卡本科技集团股份有限公司，天津  300385；2.中国建筑科学研究院有限公司，北京  100013；
3.建研院检测中心有限公司，北京  100013；4.浙江交工高等级公路养护有限公司，浙江 杭州  311101）
    摘要：预制节段拼接胶是预制节段拼接中接缝处理的关键粘结材料，按适用施工现场环境温度分为Ⅰ型、Ⅱ型和Ⅲ型，温度范围分别对应5~20、15~30、25~40 ℃。通过研究不同固化体系下预制节段拼接胶的工艺性能及粘结性能，开发了符合T/CECS 10080—2020《预制节段拼装用环氧胶粘剂》标准要求、满足I型、II型和III型这3种不同温度范围要求的固化体系。试验结果表明：5~20 ℃时，改性脂肪胺与改性聚酰胺复配固化体系的性能最佳；15~30 ℃时，改性脂环胺固化体系的性能最佳；25~40 ℃时，改性脂环胺与改性聚酰胺复配固化体系的性能最佳。
    关键词：预制节段拼装；预制节段拼接胶；固化体系；工艺性能；粘结性能
    中图分类号：TU58+1        文献标识码：A        文章编号：1001-702X（2022）10-0029-05
 
Study on the effect of curing agent system on the performance of epoxy adhesive for precast segmental construction
ZHOU Hongzhi1，LUO Shigang1，XUE Xuexue1，WEI Ying1，YAO Shufang2，3，LU Xuliang4
（1.Carbon Technology Group Co. Ltd.，Tianjin 300385，China；
2.China Academy of Building Research，Beijing 100013，China；
3.Cabr Testing Center Co. Ltd.，Beijing 100013，China；
4.Zhejiang Jiaogong Advanced-grade Highway Maintenance Co. Ltd.，Hangzhou 311101，China）
    Abstract：Epoxy adhesive for precast segmental construction is the key bonding material for joint treatment in precast segment splicing. According to the applicable construction site ambient temperature，it can be divided into type Ⅰ，type Ⅱ and type Ⅲ，the temperature range corresponds to 5~20、15~30、25~40 ℃ respectively. This paper studies the process properties and bonding properties of epoxy adhesive for precast segmental construction under different curing agent systems，and three kinds of curing agent systems that meet the three different temperature ranges of type I，typeⅡ and type Ⅲ and meet the T/CECS 10080—2020 "Epoxy adhesive for precast segmental construction" were developed. The results show that：the composite curing system of modified fatty amine and modified polyamide has the best performance at 5~20 ℃，the curing system of modified alicyclic amine has the best performance at 15~30 ℃，the composite curing system of modified alicyclic amine and modified polyamide has the best performance at 25~40 ℃.
    Key words：precast segment assembling，epoxy adhesive for precast segmental construction，curing agent system，process performance，bonding properties