Evaluation of elevated temperature properties of asphalt cement modified with aluminum oxide and calcium carbonate nanoparticles

Shaban Ismael Albrka Ali, Amiruddin Ismail, Ramez A. Almansob, Dhawo Ibrahim Alhmali

Research output: Contribution to journalArticle

Abstract

Higher temperature properties of the asphalt cement have been characterized before and after modification using dynamic shear rheometer (DSR) and viscosity testing. In this study, calcium carbonate nanoparticles (CaCO3) and aluminum oxide nanoparticles (Al2O3) have been added to the base asphalt cement with concentrations of 3, 5 and 7%.wt by the weight of the asphalt cement. The increase of CaCO3 and Al2O3 content has significant effect on the properties of asphalt cement. The viscosity of the modified asphalt cement increased up to 90 and 108% respectively compared to the base asphalt cement. In addition, the results showed that both modifiers have great storage stability and compatibility at elevated temperature. The evaluation of the rheological properties of asphalt cements revealed that the stiffness of the modified samples improved with additional increase of the modifier concentration of up to 5%, which indicates better resistance to rutting parameter. The enhancement was up to 388.89% for Al2O3 and 74.07% for CaCO3. As a result, the usage of CaCO3 and Al2O3 nanoparticles can be considered as appropriate alternative materials to modify asphalt cement.

Original languageEnglish
Article number012008
JournalIOP Conference Series: Materials Science and Engineering
Volume236
Issue number1
DOIs
Publication statusPublished - 15 Sep 2017

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asphalt
Aluminum Oxide
Calcium Carbonate
Calcium carbonate
Asphalt
Cements
Nanoparticles
Aluminum
Oxides
Temperature
Viscosity
High temperature properties
Rheometers

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Evaluation of elevated temperature properties of asphalt cement modified with aluminum oxide and calcium carbonate nanoparticles. / Ali, Shaban Ismael Albrka; Ismail, Amiruddin; Almansob, Ramez A.; Alhmali, Dhawo Ibrahim.

In: IOP Conference Series: Materials Science and Engineering, Vol. 236, No. 1, 012008, 15.09.2017.

Research output: Contribution to journalArticle

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