Application of carboxylated styrene–butadiene emulsion-Portland cement mixture as road base material

Mojtaba Shojaei Baghini, Amiruddin Ismail

Research output: Contribution to journalArticle

Abstract

This study investigated the effects of the addition of a carboxylated styrene–butadiene emulsion (CSBE) and Portland cement on the long-term performance of road base. The specimens stabilised with Portland cement (0–6%) and CSBE (5–10%) were subjected to different stress sequences in order to study the unconfined compressive strength, flexural strength (FS), soaked and unsoaked California bearing ratio, dynamic creep and wheel-tracking characteristics of seven-day-cured specimens. The FS tests showed that the addition of a 4% Portland cement–7% CSBE mixture resulted in improvements of 48.9% of modulus of rupture as compared to the sample with 4% cement. The permanent strain behaviour of the samples was assessed by the Zhou three-stage creep model. The results of dynamic creep and wheel-tracking tests showed that the permanent deformation characteristics were considerably improved by the addition of a 4% Portland cement–7% CSBE mixture, which resulted in reduction of permanent strain of the mixture. Therefore, this research presents a new polymer additive with outstanding engineering properties for use in road bases.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalInternational Journal of Pavement Engineering
DOIs
Publication statusAccepted/In press - 20 Mar 2016

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Portland cement
Emulsions
Creep
Bending strength
Wheels
Bearings (structural)
Compressive strength
Cements
Polymers

Keywords

  • dynamic creep, wheel-tracking
  • flexural strength
  • Long-term performance
  • permanent deformation
  • polymer

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

Cite this

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title = "Application of carboxylated styrene–butadiene emulsion-Portland cement mixture as road base material",
abstract = "This study investigated the effects of the addition of a carboxylated styrene–butadiene emulsion (CSBE) and Portland cement on the long-term performance of road base. The specimens stabilised with Portland cement (0–6{\%}) and CSBE (5–10{\%}) were subjected to different stress sequences in order to study the unconfined compressive strength, flexural strength (FS), soaked and unsoaked California bearing ratio, dynamic creep and wheel-tracking characteristics of seven-day-cured specimens. The FS tests showed that the addition of a 4{\%} Portland cement–7{\%} CSBE mixture resulted in improvements of 48.9{\%} of modulus of rupture as compared to the sample with 4{\%} cement. The permanent strain behaviour of the samples was assessed by the Zhou three-stage creep model. The results of dynamic creep and wheel-tracking tests showed that the permanent deformation characteristics were considerably improved by the addition of a 4{\%} Portland cement–7{\%} CSBE mixture, which resulted in reduction of permanent strain of the mixture. Therefore, this research presents a new polymer additive with outstanding engineering properties for use in road bases.",
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