Rheological studies of asphalt modified with elastomeric polymer

被引：69

作者：

Gama, Dennyele Alves ^{[1
,2
]}

Rosa Junior, Jose Manoel ^{[3
]}

Alves de Melo, Tomas Jeferson ^{[4
]}

Guedes Rodrigues, John Kennedy ^{[5
]}

机构：

[1] Fed Univ Campina Grande UFCG, Sci & Engn Mat, Campina Grande, PB, Brazil

[2] Univ Fed Campina Grande, Lab Pavements Engn, Campina Grande, PB, Brazil

[3] Fed Univ Campina Grande UFCG, Civil Engn & Environm, Campina Grande, PB, Brazil

[4] Fed Univ Campina Grande UFCG, Mat Sci & Engn, Campina Grande, PB, Brazil

[5] Fed Univ Campina Grande UFCG, Civil Engn, Campina Grande, PB, Brazil

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 106卷

关键词：

Polymers; Functionalization; Reactive polymers; Modified asphalt; Elastomeric; Rheology;

D O I：

10.1016/j.conbuildmat.2015.12.142

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Reactive polymers, consisting of glycidyl methacrylate, produce a chemical reaction between the polymer and the asphalt binder that can be beneficial for asphalt application in hot climates. Elastomeric-modified-bitumen mixes were developed using elastomeric polymer (EMA-GMA), high density polyethylene (HDPE) and polyphosphoric acid (PPA 116%). Physical and rheological properties of modified bitumen, complex modulus (vertical bar G*vertical bar), phase angle (delta), and MSCR test were analyzed. Test results of penetration, softening point and elastic recovery showed an increase of elastic behavior in modified asphalts and produced material properties suitable for application in highway construction. Based on rheological test results, it was observed that the addition of polymer can increase the range of temperature, in asphalt, to resist permanent deformation. MSCR test results characterize the modified asphalt as an elastomeric with good performance at intermediate temperatures. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：290 / 295

页数：6

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