水性环氧树脂乳化沥青在高温、低温和浸水条件下的粘结性能

doi:10.11896/j.issn.1005-023X.2018.10.028

《材料导报》期刊社

2018, Vol. 32

Issue (10): 1716-1720 https://doi.org/10.11896/j.issn.1005-023X.2018.10.028

材料研究

水性环氧树脂乳化沥青在高温、低温和浸水条件下的粘结性能

刘梦梅¹, 韩森¹, 潘俊², 李微¹, 任万艳¹

1 长安大学特殊地区公路工程教育部重点实验室, 西安 710064;
2 中铁二院贵阳勘察设计研究院有限责任公司,贵阳 550002

The Adhesion Performance of a Waterborne Epoxy Resin Emulsified Asphalt: a Study Under High- & Low-temperature and Water-immersion Environments

LIU Mengmei¹, HAN Sen¹, PAN Jun², LI Wei¹, REN Wanyan¹

1 Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, Xi’an 710064;
2 China Railway Eryuan Engineering Group, Guiyang 550002

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摘要以水性环氧树脂(WER)为改性剂,通过其与固化剂的物理-化学交联反应对乳化沥青进行改性,制备成一种理想的路面粘层材料——水性环氧树脂乳化沥青(WEREA)。采用剪切和拉拔试验,在不同温度、层间纹理和浸水时间条件下,将不同WER掺量的WEREA与普通乳化沥青和SBS改性乳化沥青进行对比试验,研究了WEREA的高温、低温和浸水粘结性能。结果显示,在试验研究范围内,随着WER掺量的增加,WEREA的层间性能显著改善;温度越高,粘层材料粘结性越差,但高温、低温条件下,WEREA的抗剪、抗拉强度均大于对照试验组。可以认为,WER通过交联作用有效改善了粘层材料的强度和层间粘附性,减缓了WEREA粘结性随浸水时间延长而降低的速率,显著提高了粘层材料的浸水粘结性。

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	刘梦梅
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	任万艳

关键词: 道路工程水性环氧树脂固化剂乳化沥青粘结性能高温低温浸水

Abstract: The present work made a successful endeavor to prepare a favorable pavement adhesive layer material —waterborne epoxy resin emulsified asphalt (WEREA), by modifying the emulsified asphalt through the cross-linking reaction between curing agent and waterborne epoxy resin (WER), the latter of which served as the modifier. We then conducted a comparative analysis with respect to the adhesion performances under high-temperature, low-temperature and water-immersion environments via the shear test and pullout test (with various testing temperature, interlayer texture and water immersion duration) upon the ordinary emulsified asphalt, SBS modified emulsified asphalt, and the resultant WEREAs differing in WER content. The results showed that the interlayer performance of WEREA improves considerably with the increase of WER contents. The higher temperature could lead to the decaying shear strength and pullout strength, both of which are superior to those of the ordinary emulsified asphalt and SBS modified emulsified asphalt. Our experiment suggested the conspicuous positive influence of the WER’s cross-linking effect to the interlayer material’s strength and the interlayer adhesion, and in consequence, the deceleration of the water-immersion-induced decline in WEREA’s adhesion, and the adhesive material’s water stability is improved significantly.

Key words: road engineering waterborne epoxy resin curing agent emulsified asphalt adhesion performance high tempe-rature low temperature water immersion

出版日期: 2018-05-25 发布日期: 2018-07-06

ZTFLH:

U416.217

基金资助: 国家自然科学基金(51608045)

作者简介: 刘梦梅:女,1993年生,博士研究生,主要从事道路结构与材料方向的研究 E-mail:L6822372@163.com

引用本文:

刘梦梅, 韩森, 潘俊, 李微, 任万艳. 水性环氧树脂乳化沥青在高温、低温和浸水条件下的粘结性能[J]. 《材料导报》期刊社, 2018, 32(10): 1716-1720.
LIU Mengmei, HAN Sen, PAN Jun, LI Wei, REN Wanyan. The Adhesion Performance of a Waterborne Epoxy Resin Emulsified Asphalt: a Study Under High- & Low-temperature and Water-immersion Environments. Materials Reports, 2018, 32(10): 1716-1720.

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https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.10.028 或 https://www.mater-rep.com/CN/Y2018/V32/I10/1716

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