Investigation of properties of plant-produced reclaimed asphalt pavement mixtures

被引：75

作者：

Shah, Ayesha ^{[1
]}

McDaniel, Rebecca S. ^{[1
]}

Huber, Gerald A. ^{[2
]}

Gallivan, Victor L. ^{[3
]}

机构：

[1] N Cent Superpava Ctr, W Lafayette, IN 47906 USA

[2] Heritage Res Grp, Indianapolis, IN 46231 USA

[3] Fed Highway Adm, Indianapolis, IN 46204 USA

来源：

TRANSPORTATION RESEARCH RECORD | 2007年 / 1998期

关键词：

D O I：

10.3141/1998-13

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The influence of reclaimed asphalt pavement (RAP) content on the mixture and recovered binder properties of plant-produced hot-mix asphalt (HMA) was examined by studying the complex moduli of RAP mixtures and binders. RAP was added at 15%,25%, and 40% levels to HMA with PG 64-22 and at 25% and 40% levels to HMA with PG 58-28 binder. In addition, control mixture samples with PG 64-22 and no RAP were also collected and tested for comparison. Compacted specimens were tested to determine the complex dynamic moduli (vertical bar E*vertical bar) at three temperatures. Complex shear moduli (vertical bar G*vertical bar) of the binders recovered from these HMA samples, RAP samples, and original binders were determined at the same test temperatures. Low-temperature creep compliance and indirect tensile strength of the mixtures were also determined, and these results were used to estimate the critical cracking temperature of the pavement. Statistical analysis indicated that there were no differences in mean strength and vertical bar E*vertical bar of the mixtures at the 15% and 25% RAP levels. Some differences between the control mixture and the 40% RAP mixtures were found only at the higher test temperatures.

引用

页码：103 / 111

页数：9