A comparative investigation into pavement thickness and cost of construction materials of stabilised flexible pavement with crumb rubber-modified asphalt

E. H. Tan, E. M.M. Zahran, S. J. Tan, S. A. Sholihah, A. I. Skutin

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

The economic feasibility of soil chemical stabilisation and asphalt crumb rubber (CR) modification in flexible pavement has not been investigated in recent research. It had been accomplished in this paper by comparing a conventional section comprised of unbound sub-base, unbound roadbase and conventional hot-mix asphalt (HMA) wearing course with a non-conventional section comprised of chemically-stabilised sub-base, unbound roadbase and CR-modified (CRM) HMA wearing course. The thickness of each layer in the two sections was determined using California bearing ratio (CBR) design chart and the cost of construction material was determined using the layer thickness and local material unit cost. The investigation concluded that sub-base stabilisation with 3% Portland composite cement (PCC) and wearing course modification with 1% CR resulted in the thinnest and most economical non-conventional section when compared to the conventional section. Sub-base stabilisation with 1% styrene-butadiene latex copolymer (TP) resulted in the thickest and costliest non-conventional pavement section.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
EditorsA.G. Galkin, S.V. Bushuev
PublisherAmerican Institute of Physics Inc.
Edition1
ISBN (Electronic)9780735447066
DOIs
Publication statusPublished - 26 Dec 2023
Event2021 International Scientific and Practical Conference on Railway Transport and Technologies, RTT 2021 - Yekaterinburg, Russian Federation
Duration: 24 Nov 202125 Nov 2021

Publication series

NameAIP Conference Proceedings
Number1
Volume2624
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2021 International Scientific and Practical Conference on Railway Transport and Technologies, RTT 2021
Country/TerritoryRussian Federation
CityYekaterinburg
Period24/11/2125/11/21

ASJC Scopus subject areas

  • General Physics and Astronomy

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