Modelling of the adhesion between reclaimed asphalt pavement aggregates and hydrated cement paste

被引：29

作者：

Ben Said, Sawssen El Euch ^{[1
]}

Khay, Saloua El Euch ^{[2
]}

Achour, Taoufik ^{[3
]}

Loulizi, Amara ^{[2
]}

机构：

[1] Higher Inst Technol Studies Rades, Lab Mat Optimizat & Environm Sustainabil LR11ES16, BP 37 Le Belvedere, Tunis 1002, Tunisia

[2] Tunis El Manar Univ, Natl Engn Sch Tunis, Lab Mat Optimizat & Environm Sustainabil LR11ES16, BP 37 Le Belvedere, Tunis 1002, Tunisia

[3] Univ Tunis Carthage, Civil Engn Lab, LR03ES05, Natl Engn Sch Tunis ENIT, BP 37 Le Belvedere, Tunis 1002, Tunisia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 152卷

关键词：

Recycling; Adhesion; RAP; Mixture theory; LCPC model; SEM; HOT-MIX ASPHALT; MECHANICAL-PROPERTIES; CONCRETE; RUBBER; MIXTURES;

D O I：

10.1016/j.conbuildmat.2017.07.078

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Scanning electron microscope images on concrete incorporating 100% RAP material showed the presence of voids between cement paste and RAP aggregates indicating the poor adhesion between these two constituents. Therefore, the LCPC French model, was used with compressive strength data of different RAP concrete mixes to determine the adhesion and threshold parameters of the model. It was found that the adhesion parameter decreases as the RAP content increases while the threshold parameter remained constant for all RAP contents. The model with its described procedure could be used to proportion RAP concretes for any targeted compressive strength. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：839 / 846

页数：8

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