Journal Published Online: 02 March 2020
Volume 48, Issue 3

Performance Evaluation of Hybrid Fibers and Nano-zeolite Modified Asphalt Micro-surfacing

CODEN: JTEVAB

Abstract

Micro-surfacing is a cationic mixture for reparation and maintenance of asphalt pavement and contains polymer-modified bitumen emulsion, 100 % manufactured well-graded fine aggregate, mineral filler, water, and chemical additives. The object of this study was to extend the lifespan of a Micro-surfacing mixture against traffic loads to obtain a higher performance asphalt mixture using different additives, including Diatomite filler, nano-zeolite, styrene butadiene rubber, and glass fiber. To evaluate the performance of the mixtures, a variety of experimental tests, including the abrasion test (International Slurry Surfacing Association [ISSA] TB 100), adhesion test (ISSA TB109), and Wet Cohesion test (ISSA TB139) and Scanning Electron Microscopy, were conducted to classify Micro-surfacing quality control against traffic loads. Cohesion test results showed that adding 2 % nano-zeolite and 4 % polypropylene increased loading resistance up to 25 % (Quick Set and Quick Traffic). In addition, using 10 % of Diatomite improved abrasion resistance. It is worth noting that with an increasing dosage of asphalt emulsion, the effect of the additives will also increase. Moreover, adding 0.26 % of glass fiber in the mixtures increased bleeding resistance around 14 %.

Author Information

Alavi, Seyed Ahmad Kheyrkhah
Department of Civil Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran
Tanzadeh, Javad
Department of Civil and Environmental Engineering, Islamic Azad University, Bandar Anzali Branch, Bandar Anzali, Iran
Tahami, Seyed Amid
Department of Civil and Environmental Engineering, The University of Texas at San Antonio, San Antonio, USA
Mirhosseini, Ali Foroutan
Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway
Pages: 20
Price: $25.00
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Details
Stock #: JTE20190732
ISSN: 0090-3973
DOI: 10.1520/JTE20190732