Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance

The impact of using three contents of 1, 3 and 5 % of nano CaCO3 on the composition of asphalt binder and the mechanical properties of Hot Mix Asphalt (HMA) wearing course was studied. Laboratory tests were performed to examine the physical and rheological characteristics of nanomodified asphalt bin...

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Main Authors: Ahmed Mahir Mohammed, Alaa H. Abed
Format: Article
Language:English
Published: University of Žilina 2025-01-01
Series:Communications
Subjects:
Online Access:https://komunikacie.uniza.sk/artkey/csl-202501-0012_evaluation-of-nanomodified-asphalt-with-caco3-rheological-and-mixture-performance.php
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author Ahmed Mahir Mohammed
Alaa H. Abed
author_facet Ahmed Mahir Mohammed
Alaa H. Abed
author_sort Ahmed Mahir Mohammed
collection DOAJ
description The impact of using three contents of 1, 3 and 5 % of nano CaCO3 on the composition of asphalt binder and the mechanical properties of Hot Mix Asphalt (HMA) wearing course was studied. Laboratory tests were performed to examine the physical and rheological characteristics of nanomodified asphalt binder. In addition, Superpave Indirect Tensile Test (IDT) was conducted to evaluate the mechanistic characteristics and moisture susceptibility of the HMA. The test findings pointed that the nano modified asphalt with 5% nano CaCO3, decreased the temperature sensitivity due to asphalt stiffening and improved resistance to permanent deformation. Additionally, HMA mixture performance exhibits a substantial increase in moduli value at temperatures varying from 5 to 40 oC and increased flexibility at lower testing temperatures as compared to the neat HMA mixture.
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publishDate 2025-01-01
publisher University of Žilina
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spelling doaj-art-e6c42c5e98a64638a67026d1921c09d52025-01-08T20:58:49ZengUniversity of ŽilinaCommunications1335-42052585-78782025-01-01271D38D5310.26552/com.C.2025.012csl-202501-0012Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture PerformanceAhmed Mahir Mohammed0Alaa H. Abed1Civil Engineering Department, University of Baghdad, Baghdad, IraqCivil Engineering Department, AL-Nahrin University, Baghdad, IraqThe impact of using three contents of 1, 3 and 5 % of nano CaCO3 on the composition of asphalt binder and the mechanical properties of Hot Mix Asphalt (HMA) wearing course was studied. Laboratory tests were performed to examine the physical and rheological characteristics of nanomodified asphalt binder. In addition, Superpave Indirect Tensile Test (IDT) was conducted to evaluate the mechanistic characteristics and moisture susceptibility of the HMA. The test findings pointed that the nano modified asphalt with 5% nano CaCO3, decreased the temperature sensitivity due to asphalt stiffening and improved resistance to permanent deformation. Additionally, HMA mixture performance exhibits a substantial increase in moduli value at temperatures varying from 5 to 40 oC and increased flexibility at lower testing temperatures as compared to the neat HMA mixture.https://komunikacie.uniza.sk/artkey/csl-202501-0012_evaluation-of-nanomodified-asphalt-with-caco3-rheological-and-mixture-performance.phpnanomaterialasphaltcaco3idtdsrtsr
spellingShingle Ahmed Mahir Mohammed
Alaa H. Abed
Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance
Communications
nanomaterial
asphalt
caco3
idt
dsr
tsr
title Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance
title_full Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance
title_fullStr Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance
title_full_unstemmed Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance
title_short Evaluation of Nanomodified Asphalt with CaCO3: Rheological and Mixture Performance
title_sort evaluation of nanomodified asphalt with caco3 rheological and mixture performance
topic nanomaterial
asphalt
caco3
idt
dsr
tsr
url https://komunikacie.uniza.sk/artkey/csl-202501-0012_evaluation-of-nanomodified-asphalt-with-caco3-rheological-and-mixture-performance.php
work_keys_str_mv AT ahmedmahirmohammed evaluationofnanomodifiedasphaltwithcaco3rheologicalandmixtureperformance
AT alaahabed evaluationofnanomodifiedasphaltwithcaco3rheologicalandmixtureperformance