Composition optimisation and performance evaluation of waterborne epoxy resin emulsified asphalt tack coat binder for pavement

IF 3.4 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

International Journal of Pavement Engineering Pub Date : 2021-05-31 DOI:10.1080/10298436.2021.1932878

Hao Fu, Chaohui Wang, Liangliang Niu, Guolin Yang, Luqing Liu

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引用次数: 18

Abstract

ABSTRACT To ensure the effective bonding of each structural layer of pavement and improve the service quality and durability of pavement, the waterborne epoxy resin (WER) emulsified asphalt (WEREA) tack coat binders were prepared by using polyurethane-epoxy resin. The basic properties of WEREA, such as tensile strength, adhesion to aggregate, high temperature heat resistance and low temperature impact resistance were studied. Its composition and ratio were optimised. The waterproof, bonding and durability performance of WEREA used in pavement tack coat were evaluated. The results show that WEREA prepared by polyether polyurethane modified E-51 epoxy resin (PUD-E51) has higher early and late strength. Its tensile strength was 1.75 MPa after curing for 7 days. The basic properties of WEREA, including adhesion to aggregate, heat resistance and impact resistance were better than those of SBS modified asphalt and crumb rubber modified asphalt binder. The tack coat of WEREA cannot seep under the dynamic water pressure of 0.6 MPa for 30 min. According to the interlaminar shear strength, the recommended spraying amount of the WEREA tack coat was 1.0 kg/m2. The WEREA could guarantee the effective bonding of each structural layer of the pavement, and improve the durability of the tack coat and pavement.

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路面用水性环氧树脂乳化沥青粘性涂料粘结剂的配方优化及性能评价

摘要为了保证路面各结构层的有效粘结，提高路面的使用质量和耐久性，采用聚氨酯环氧树脂制备了水性环氧树脂乳化沥青粘结层。研究了WEREA的基本性能，如抗拉强度、对集料的附着力、耐高温耐热性和耐低温冲击性。对其组成和配比进行了优化。对WEREA在路面粘结层中的防水、粘结和耐久性能进行了评价。结果表明，采用聚醚型聚氨酯改性E-51环氧树脂（PUD-E51）制备的WEREA具有较高的早期和后期强度。其抗拉强度为1.75 养护7天后的MPa。WEREA的基本性能，包括对集料的附着力、耐热性和抗冲击性，均优于SBS改性沥青和胶粉改性沥青结合料。WEREA的粘结层在0.6的动态水压下不会渗漏 30 MPa min。根据层间剪切强度，WEREA粘结层的推荐喷涂量为1.0 WEREA可以保证路面各结构层的有效粘结，提高粘结层和路面的耐久性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Pavement Engineering CONSTRUCTION & BUILDING TECHNOLOGY-ENGINEERING, CIVIL

CiteScore

7.10

自引率

7.90%

发文量

208

审稿时长

4.5 months

期刊介绍： Pavement Engineering is important for facilitating national and international movement of people, services, and goods. Building and preserving efficient, reliable, and sustainable highway and airport pavement systems is crucial for economic and social development. The International Journal of Pavement Engineering is dedicated to the publication of cutting edge research and development in such important types of structures and facilities, including advanced analytical and computational techniques and pavement mechanics; material characterization and innovative laboratory testing techniques, non-destructive testing and evaluation; novel design approaches and their implementation; construction techniques and strategies; rehabilitation, preservation, and maintenance strategies and approaches; bound and unbound pavement performance; pavement life cycle assessment and life cycle cost analysis; pavement management systems. The Journal publishes the latest research findings from all over the world as well as case studies. Hence, one of the journal aims is to bring together and disseminate results of advanced research and its implementation across the world. Occasionally, the journal publishes state-of-the-art reviews on pavement engineering aiming to transfer advanced pavement understanding to the international user community as well as special issues focusing on subjects of importance and interest to the pavement community.