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A platform for research: civil engineering, architecture and urbanism
Laboratory Characterization of Pozzolan-Modified Asphalt Binder
https://orcid.org/http://orcid.org/0000-0001-6282-9066
The objective of this study is to investigate the effect of using Pozzolan as an asphalt binder modifier and assess its potential physical and rheological improvements. This research also intends to initiate a comprehensive research on the effect of Pozzolan on the rheological characteristics of asphalt binder since only limited studies have used Pozzolan as an asphalt binder modifier. Pozzolan was added to a (60/70) penetration grade asphalt binder at six different percentages in addition to the control asphalt binder. Both traditional and rheological tests on modified and control asphalt binders were performed. The traditional tests included penetration, softening point, flash and fire points, and ductility. The rheological tests, on the other hand, included rotational viscometer (RV) and Dynamic Shear Rheometer (DSR) tests. The outcomes proved that adding Pozzolan to asphalt binder enhanced high-temperature performance. 15% Pozzolan content was found to be the optimum content at which most rheological characteristics of the asphalt binder were enhanced. The experimental outcomes were contrasted and analyzed statistically by the analysis of variance (ANOVA) to discover any significant difference between the influence of Pozzolan and test temperature. The outcomes of one-way ANOVA pointed out that Pozzolan had a significant influence on the rotational viscosity and physical characteristics. Also, the change in Pozzolan content and temperature together showed a significant effect on the rutting parameter according to the two-way ANOVA outcomes.
Laboratory Characterization of Pozzolan-Modified Asphalt Binder
https://orcid.org/http://orcid.org/0000-0001-6282-9066
The objective of this study is to investigate the effect of using Pozzolan as an asphalt binder modifier and assess its potential physical and rheological improvements. This research also intends to initiate a comprehensive research on the effect of Pozzolan on the rheological characteristics of asphalt binder since only limited studies have used Pozzolan as an asphalt binder modifier. Pozzolan was added to a (60/70) penetration grade asphalt binder at six different percentages in addition to the control asphalt binder. Both traditional and rheological tests on modified and control asphalt binders were performed. The traditional tests included penetration, softening point, flash and fire points, and ductility. The rheological tests, on the other hand, included rotational viscometer (RV) and Dynamic Shear Rheometer (DSR) tests. The outcomes proved that adding Pozzolan to asphalt binder enhanced high-temperature performance. 15% Pozzolan content was found to be the optimum content at which most rheological characteristics of the asphalt binder were enhanced. The experimental outcomes were contrasted and analyzed statistically by the analysis of variance (ANOVA) to discover any significant difference between the influence of Pozzolan and test temperature. The outcomes of one-way ANOVA pointed out that Pozzolan had a significant influence on the rotational viscosity and physical characteristics. Also, the change in Pozzolan content and temperature together showed a significant effect on the rutting parameter according to the two-way ANOVA outcomes.
Laboratory Characterization of Pozzolan-Modified Asphalt Binder
https://orcid.org/http://orcid.org/0000-0001-6282-9066
The objective of this study is to investigate the effect of using Pozzolan as an asphalt binder modifier and assess its potential physical and rheological improvements. This research also intends to initiate a comprehensive research on the effect of Pozzolan on the rheological characteristics of asphalt binder since only limited studies have used Pozzolan as an asphalt binder modifier. Pozzolan was added to a (60/70) penetration grade asphalt binder at six different percentages in addition to the control asphalt binder. Both traditional and rheological tests on modified and control asphalt binders were performed. The traditional tests included penetration, softening point, flash and fire points, and ductility. The rheological tests, on the other hand, included rotational viscometer (RV) and Dynamic Shear Rheometer (DSR) tests. The outcomes proved that adding Pozzolan to asphalt binder enhanced high-temperature performance. 15% Pozzolan content was found to be the optimum content at which most rheological characteristics of the asphalt binder were enhanced. The experimental outcomes were contrasted and analyzed statistically by the analysis of variance (ANOVA) to discover any significant difference between the influence of Pozzolan and test temperature. The outcomes of one-way ANOVA pointed out that Pozzolan had a significant influence on the rotational viscosity and physical characteristics. Also, the change in Pozzolan content and temperature together showed a significant effect on the rutting parameter according to the two-way ANOVA outcomes.
Laboratory Characterization of Pozzolan-Modified Asphalt Binder
Int. J. Pavement Res. Technol.
Al-Omari, Aslam Ali (author) / Al-Rousan, Taleb Mustafa (author) / Al-Facara, Esra’a Salem (author)
International Journal of Pavement Research and Technology ; 15 ; 1051-1061
2022-09-01
11 pages
Article (Journal)
Electronic Resource
English
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