Evaluation of thermal and mechanical properties of recycled polyethylene modified bitumen

被引：118

作者：

Fuentes-Auden, Cristina ^{[1
]}

Andres Sandoval, Juan ^{[1
]}

Jerez, Abel ^{[1
]}

Navarro, Francisco J. ^{[1
]}

Martinez-Boza, Francisco J. ^{[1
]}

Partal, Pedro ^{[1
]}

Gallegos, Crispulo ^{[1
]}

机构：

[1] Univ Huelva, Fac Ciencias Expt, Dept Ingn Quim, Huelva 21071, Spain

来源：

POLYMER TESTING | 2008年 / 27卷 / 08期

关键词：

Modified bitumen; Recycled polymer; Paving; Roofing; Rheology; MDSC;

D O I：

10.1016/j.polymertesting.2008.09.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper deals with the influence that polymer concentration exerts on the theological and thermal properties and microstructure of recycled polyethylene modified bitumen. With this aim, a recycled polyethylene was used as modifying agent to improve the mechanical characteristics of a 150/200 penetration grade bitumen. The evolution of microstructure and thermal and rheological behaviour of the blends has been followed by optical microscopy, MDSC measurements, steady and oscillatory shear tests and dynamic mechanical thermal analysis (DMTA), respectively. Recycled polymer concentrations up to 15 wt.% lead to enhanced theological properties of the modified bitumen, useful for paving applications. Larger recycled polymer concentrations yield modified binders suitable for roofing membranes. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1005 / 1012

页数：8

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