多因素作用下水泥乳化沥青胶浆性能特征及机理

doi:10.6040/j.issn.1672-3961.0.2022.142

山东大学学报 (工学版) ›› 2023, Vol. 53 ›› Issue (1): 25-31.doi: 10.6040/j.issn.1672-3961.0.2022.142

• • 上一篇

多因素作用下水泥乳化沥青胶浆性能特征及机理

郭豪彦¹,王振军^1*,张海宝¹,史文涛¹,况栋梁²

1. 长安大学材料科学与工程学院, 陕西西安 710061;2. 交通铺面材料教育部工程研究中心, 陕西西安 710064

发布日期:2023-02-13
作者简介:郭豪彦(1993— ),男,山西运城人,博士研究生,主要研究方向为道路材料. E-mail:hyguo@chd.edu.cn. *通信作者简介:王振军(1978— ),男,山东潍坊人,教授,博士生导师,主要研究方向为道路材料. E-mail:zjwang@chd.edu.cn.
基金资助:
国家自然科学基金面上项目(51978067);新疆生产建设兵团科技发展项目(2021DB005);陕西省重点研发计划项目(2022GY-417);陕西省交通科技项目(21-53K)

Performance characteristics and mechanism of cement emulsified asphalt mortar under the action of multiple factors

GUO Haoyan¹, WANG Zhenjun^1*, ZHANG Haibao¹, SHI Wentao¹, KUANG Dongliang²

1. School of Materials Science and Engineering, Chang'an University, Xi'an 710061, Shaanxi, China;
2. Engineering Research Center of Pavement Materials of Ministry of Education of P.R. China, Chang'an University, Xi'an 710064, Shaanxi, China.

Published:2023-02-13

摘要/Abstract

摘要： 为揭示多因素作用下水泥乳化沥青胶浆(cement emulsified asphalt mortar, CEA)的水化特征及强度形成机理,选取乳化沥青与水泥质量比m(A)/m(c)、水灰比和养护方式等因素,研究新拌CEA的流动性以及在凝结硬化过程中水泥水化进程、力学性能、水分蒸发速率以及内部孔隙结构的发展规律。结果表明,随着m(A)/m(c)的增加,水泥水化诱导期不断延长,CEA的流动性与内部结构致密性遭到劣化,抗压强度受到不利影响;水灰比的增加虽可以减弱乳化沥青对水泥水化的延缓作用,但高水灰比CEA的内部水分蒸发速率较高,基体内部结构疏松多孔,抗压强度大幅降低;对于低m(A)/m(c)和高水灰比的CEA,可通过裹覆养护降低CEA基体内部水分蒸发速率,进而提升CEA的抗压强度。本研究揭示了多因素作用下水泥乳化沥青胶浆的性能特征及机理,为高性能水泥乳化沥青胶浆的设计提供理论依据。

关键词: 水泥乳化沥青胶浆, 流动性, 抗压强度, 水化热, 水分蒸发速率

中图分类号:

U414

郭豪彦,王振军,张海宝,史文涛,况栋梁. 多因素作用下水泥乳化沥青胶浆性能特征及机理[J]. 山东大学学报 (工学版), 2023, 53(1): 25-31.

GUO Haoyan, WANG Zhenjun, ZHANG Haibao, SHI Wentao, KUANG Dongliang. Performance characteristics and mechanism of cement emulsified asphalt mortar under the action of multiple factors[J]. Journal of Shandong University(Engineering Science), 2023, 53(1): 25-31.

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多因素作用下水泥乳化沥青胶浆性能特征及机理

Performance characteristics and mechanism of cement emulsified asphalt mortar under the action of multiple factors

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