Evaluation of cement-treated mixtures with slow setting bitumen emulsion as base course material for road pavements

Mojtaba Shojaei Baghini, Amiruddin Ismail, Mohamed Rehan Bin Karim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Abstract This study investigated the effects of the addition of a bitumen emulsion and Portland cement on the long-term performance of road base. The specimens stabilized with Portland cement (0-6%), bitumen emulsion (0-6%) and Portland cement-bitumen emulsion mixture were subjected to different stress sequences in order to study the unconfined compressive strength (UCS), flexural strength (FS), wetting and drying (WD), soaked and unsoaked California bearing ratio (CBR), dynamic creep (DC), and wheel-tracking (WT) characteristics of 7-day-cured specimens. The results of UCS, FS and CBR tests revealed that the additives significantly improved the strength of the mixture. The WD cycling tests showed that the addition of a 4% Portland cement-3% bitumen emulsion mixture resulted in a 179.4% reduction in water absorption, a volume change of 256.3%, and a weight change of 211.95% as compared to the sample with 4% cement after 12 WD cycles. The permanent strain behavior of the samples was assessed by the Zhou three-stage model. The results of DC and WT tests showed that the permanent deformation characteristics were considerably improved by the addition of a 4% Portland cement-3% bitumen emulsion mixture, which resulted in reduction of permanent strain of the mixture. Therefore, this research presents an environmentally friendly additive with outstanding engineering properties for use in road bases.

Original languageEnglish
Article number6872
Pages (from-to)323-336
Number of pages14
JournalConstruction and Building Materials
Volume94
DOIs
Publication statusPublished - 18 Jul 2015

Fingerprint

asphalt
Portland cement
Emulsions
Pavements
Cements
Bearings (structural)
Wetting
Drying
Bending strength
Compressive strength
Wheels
Creep
Water absorption

Keywords

  • Bitumen emulsion
  • Dynamic creep
  • Mixture
  • Model
  • Portland cement
  • Water absorption

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

Evaluation of cement-treated mixtures with slow setting bitumen emulsion as base course material for road pavements. / Baghini, Mojtaba Shojaei; Ismail, Amiruddin; Bin Karim, Mohamed Rehan.

In: Construction and Building Materials, Vol. 94, 6872, 18.07.2015, p. 323-336.

Research output: Contribution to journalArticle

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