Investigation into hot-mix asphalt moisture-induced damage under tropical climatic conditions

Juraidah Ahmad, Nur Izzi Md Yusoff, Mohd Rosli Hainin, Mohd Yusof Abd Rahman, Mustaque Hossain

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A major concern for highway industries in tropical climatic countries is the excessive moisture-induced damage to hot-mix asphalt (HMA) pavements as a result of frequent passes by heavy axle loads. Therefore, in this study, two different approaches, the Superpave and Marshall mix design methods, were used to design HMA mixes and a comparison was made to identify how susceptible these mixtures are to moisture damage. The Modified Lottman test and Simple Performance Test (SPT) were performed on unconditioned and conditioned specimens tailored to suit tropical climatic conditions, omitting freeze and thaw. The Modified Lottman test showed that the tensile strength values of Superpave-designed mixtures are higher than Marshall-designed mixtures. The tensile strength ratio (TSR) values decreased from unconditioned to conditioned specimens, suggesting that there is damage to the mixtures. The results also show good agreement between the TSR and ESR in the two tests, with a coefficient of determination value of 0.78. This relationship indicates that the SPT dynamic modulus test was effective and suitable to evaluate the lab-measured moisture susceptibility of HMA mixes. Since the dynamic modulus test provides a full characterisation of the mix over a broad range of temperatures and loading frequencies, this test is highly recommended for Superpave mixture characterisation in tropical climatic conditions.

Original languageEnglish
Pages (from-to)567-576
Number of pages10
JournalConstruction and Building Materials
Volume50
DOIs
Publication statusPublished - 2014

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asphalt
Asphalt
Superpave
Moisture
Tensile strength
Asphalt pavements
Axles
Paramagnetic resonance

Keywords

  • Marshall mix design
  • Moisture-induce damage
  • Simple Performance Test
  • Superpave mix design
  • Tensile strength ratio

ASJC Scopus subject areas

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

Cite this

Investigation into hot-mix asphalt moisture-induced damage under tropical climatic conditions. / Ahmad, Juraidah; Md Yusoff, Nur Izzi; Hainin, Mohd Rosli; Rahman, Mohd Yusof Abd; Hossain, Mustaque.

In: Construction and Building Materials, Vol. 50, 2014, p. 567-576.

Research output: Contribution to journalArticle

Ahmad, Juraidah ; Md Yusoff, Nur Izzi ; Hainin, Mohd Rosli ; Rahman, Mohd Yusof Abd ; Hossain, Mustaque. / Investigation into hot-mix asphalt moisture-induced damage under tropical climatic conditions. In: Construction and Building Materials. 2014 ; Vol. 50. pp. 567-576.
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