Investigation of the relationship between fluidity and adhesion strength of unmodified and modified bitumens using the pull-off test method

Hend Ali Omar, Nur Izzi Md Yusoff, Halil Ceylan, Zainuddin Sajuri, Fauzan Mohd Jakarni, Amiruddin Ismail

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study was conducted to investigate the relationship between fluidity and adhesion strength of unmodified and modified bitumens through the use of the consistency and pull-off tests. A universal testing machine (UTM) was used to quantify the adhesion strength of unmodified and modified bitumens where a specially designed mold was fabricated using stainless steel and granite as substrates. Powder cement, hydrated lime and nano-clay were added to bitumen in two different percentages, namely 2 and 4% by the weight of bitumen. The X-ray diffraction (XRD) was used to determine the effects of the additives on the structure of the binders. On the other hand, the scanning electron microscope (SEM) was used to gather surface topography information of the additives scattered within the binder bulk. It was found that the values for adhesion strength varied depending on the types and percentages of additive used, as well as the substrates and their thickness. The use of stainless steel substrate produced a good correlation between adhesion strength and the results of consistency test, although the results for viscosity test showed a weaker correlation in identifying the changes in adhesion strength that was caused by the addition of additives. It can be deduced that the pull-off test can be a useful tool to determine the effects of additives on fluidity and adhesion strength when stainless steel substrate was used.

Original languageEnglish
Pages (from-to)140-148
Number of pages9
JournalConstruction and Building Materials
Volume122
DOIs
Publication statusPublished - 30 Sep 2016

Fingerprint

Fluidity
Bond strength (materials)
asphalt
Stainless Steel
Stainless steel
Substrates
Binders
Hydrated lime
Granite
Surface topography
Powders
Cements
Clay
Electron microscopes
Viscosity
Scanning
X ray diffraction
Testing

Keywords

  • Adhesion strength
  • Bitumen
  • Fluidity
  • Granite
  • Powder additives
  • Pull-off test
  • Stainless steel

ASJC Scopus subject areas

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

Cite this

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title = "Investigation of the relationship between fluidity and adhesion strength of unmodified and modified bitumens using the pull-off test method",
abstract = "This study was conducted to investigate the relationship between fluidity and adhesion strength of unmodified and modified bitumens through the use of the consistency and pull-off tests. A universal testing machine (UTM) was used to quantify the adhesion strength of unmodified and modified bitumens where a specially designed mold was fabricated using stainless steel and granite as substrates. Powder cement, hydrated lime and nano-clay were added to bitumen in two different percentages, namely 2 and 4{\%} by the weight of bitumen. The X-ray diffraction (XRD) was used to determine the effects of the additives on the structure of the binders. On the other hand, the scanning electron microscope (SEM) was used to gather surface topography information of the additives scattered within the binder bulk. It was found that the values for adhesion strength varied depending on the types and percentages of additive used, as well as the substrates and their thickness. The use of stainless steel substrate produced a good correlation between adhesion strength and the results of consistency test, although the results for viscosity test showed a weaker correlation in identifying the changes in adhesion strength that was caused by the addition of additives. It can be deduced that the pull-off test can be a useful tool to determine the effects of additives on fluidity and adhesion strength when stainless steel substrate was used.",
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AU - Ali Omar, Hend

AU - Md Yusoff, Nur Izzi

AU - Ceylan, Halil

AU - Sajuri, Zainuddin

AU - Jakarni, Fauzan Mohd

AU - Ismail, Amiruddin

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KW - Fluidity

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KW - Powder additives

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