Physical and rheological properties of acrylate-styrene-acrylonitrile modified asphalt cement

Shaban Ismael Albrka Ali, Amiruddin Ismail, Nur Izzi Md Yusoff, Mohamed Rehan Karim, Ramez A. Al-Mansob, Dhawo Ibrahim Alhamali

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Polymer-modified asphalt cement (PMAC) has been used in the last few decades to mitigate several root causes of asphalt-cement failures. Furthermore, it has been proved that polymers used as asphalt-cement modifiers had significant influence on the properties of asphalt at low and high temperatures. The primary objective of this study was to investigate the rheological, mechanical, and physical properties of acrylate-styrene-acrylonitrile (ASA) PMAC. Three types of samples with different concentration of the additives were studied, namely asphalt cement with 3%, 5%, and 7% of ASA. The influence of the modifier on the rheological, mechanical, and physical properties was evaluated by conventional tests (penetration, softening point, and ductility), viscosity, X-ray diffraction (XRD), and measurements from a dynamic shear rheometer (DSR). From the results of this study, it is evident that the addition of ASA has a significant effect on the rheological properties of asphalt cement. The temperature susceptibility of modified asphalt cement (MAC) was reduced compared with unmodified asphalt cement. In addition, the storage-stability test confirmed that the ASA-MAC has good compatibility. Furthermore, XRD results revealed that the phase of ASA-MAC changed from amorphous to semi-crystalline, which indicates that these materials have good workability. Based on the results from the DSR measurements, ASA-MAC has reduced temperature susceptibility, and increased stiffness and elastic behavior in comparison to unmodified asphalt cement. Moreover, ASA-MAC shows improved rutting resistance at high temperatures and higher fatigue performance at low temperatures. As a result, ASA can be considered as a proper alternative additive to modify the properties of asphalt cement.

Original languageEnglish
Pages (from-to)326-334
Number of pages9
JournalConstruction and Building Materials
Volume93
DOIs
Publication statusPublished - 13 Jun 2015

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asphalt
Acrylonitrile
Styrene
Asphalt
Cements
Polymers
Rheometers
acrylic acid

Keywords

  • Acrylate-styrene-acrylonitrile polymer
  • Dynamic shear rheometer
  • Physical and rheological properties
  • Polymer modified asphalt cement
  • X-ray diffraction

ASJC Scopus subject areas

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

Cite this

Physical and rheological properties of acrylate-styrene-acrylonitrile modified asphalt cement. / Ali, Shaban Ismael Albrka; Ismail, Amiruddin; Md Yusoff, Nur Izzi; Karim, Mohamed Rehan; Al-Mansob, Ramez A.; Alhamali, Dhawo Ibrahim.

In: Construction and Building Materials, Vol. 93, 13.06.2015, p. 326-334.

Research output: Contribution to journalArticle

Ali, Shaban Ismael Albrka ; Ismail, Amiruddin ; Md Yusoff, Nur Izzi ; Karim, Mohamed Rehan ; Al-Mansob, Ramez A. ; Alhamali, Dhawo Ibrahim. / Physical and rheological properties of acrylate-styrene-acrylonitrile modified asphalt cement. In: Construction and Building Materials. 2015 ; Vol. 93. pp. 326-334.
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abstract = "Polymer-modified asphalt cement (PMAC) has been used in the last few decades to mitigate several root causes of asphalt-cement failures. Furthermore, it has been proved that polymers used as asphalt-cement modifiers had significant influence on the properties of asphalt at low and high temperatures. The primary objective of this study was to investigate the rheological, mechanical, and physical properties of acrylate-styrene-acrylonitrile (ASA) PMAC. Three types of samples with different concentration of the additives were studied, namely asphalt cement with 3{\%}, 5{\%}, and 7{\%} of ASA. The influence of the modifier on the rheological, mechanical, and physical properties was evaluated by conventional tests (penetration, softening point, and ductility), viscosity, X-ray diffraction (XRD), and measurements from a dynamic shear rheometer (DSR). From the results of this study, it is evident that the addition of ASA has a significant effect on the rheological properties of asphalt cement. The temperature susceptibility of modified asphalt cement (MAC) was reduced compared with unmodified asphalt cement. In addition, the storage-stability test confirmed that the ASA-MAC has good compatibility. Furthermore, XRD results revealed that the phase of ASA-MAC changed from amorphous to semi-crystalline, which indicates that these materials have good workability. Based on the results from the DSR measurements, ASA-MAC has reduced temperature susceptibility, and increased stiffness and elastic behavior in comparison to unmodified asphalt cement. Moreover, ASA-MAC shows improved rutting resistance at high temperatures and higher fatigue performance at low temperatures. As a result, ASA can be considered as a proper alternative additive to modify the properties of asphalt cement.",
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AB - Polymer-modified asphalt cement (PMAC) has been used in the last few decades to mitigate several root causes of asphalt-cement failures. Furthermore, it has been proved that polymers used as asphalt-cement modifiers had significant influence on the properties of asphalt at low and high temperatures. The primary objective of this study was to investigate the rheological, mechanical, and physical properties of acrylate-styrene-acrylonitrile (ASA) PMAC. Three types of samples with different concentration of the additives were studied, namely asphalt cement with 3%, 5%, and 7% of ASA. The influence of the modifier on the rheological, mechanical, and physical properties was evaluated by conventional tests (penetration, softening point, and ductility), viscosity, X-ray diffraction (XRD), and measurements from a dynamic shear rheometer (DSR). From the results of this study, it is evident that the addition of ASA has a significant effect on the rheological properties of asphalt cement. The temperature susceptibility of modified asphalt cement (MAC) was reduced compared with unmodified asphalt cement. In addition, the storage-stability test confirmed that the ASA-MAC has good compatibility. Furthermore, XRD results revealed that the phase of ASA-MAC changed from amorphous to semi-crystalline, which indicates that these materials have good workability. Based on the results from the DSR measurements, ASA-MAC has reduced temperature susceptibility, and increased stiffness and elastic behavior in comparison to unmodified asphalt cement. Moreover, ASA-MAC shows improved rutting resistance at high temperatures and higher fatigue performance at low temperatures. As a result, ASA can be considered as a proper alternative additive to modify the properties of asphalt cement.

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