Evaluation of Moisture Sensitivity of Modified Asphalt Mixtures with Crystal Calcium Carbonate Powder

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Hamedi Gholam Hossein; Sohrabi Mohsen

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Journal: Ferdowsi Civil Engineering Year:2019 | Volume:32 | Issue:3 Page(s): 1-16

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Information Journal Paper

Title

Evaluation of Moisture Sensitivity of Modified Asphalt Mixtures with Crystal Calcium Carbonate Powder

Author(s)

Hamedi Gholam Hossein | Sohrabi Mohsen | Issue Writer Certificate

Keywords

Moisture damageQ1

Aggregate treatmentQ1

Crystal calcium carbonateQ1

Modified Lottman testQ1

Surface free energyQ1

Abstract

In this research, by using mechanical and thermodynamic methods, the effect of surface coatings of aggregates with Crystal calcium carbonate powder on the moisture sensitivity of asphalt mixtures has been evaluated. The results show that the indirect tensile strength of the modified specimens has been increased. as Also, the result of SFE method indicates that, with aggregate surface modification, their acidic and basic components respectively have been reduced and increased. Due to these changes, the adhesion between aggregates and bitumen (which is an acidic substance) increase. In addition, the amount of released energy in the presence of moisture has been reduced for modified specimens, which indicates a reduction in the tendency of the mixture for stripping.

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APA: Copy

Hamedi, Gholam Hossein, & Sohrabi, Mohsen. (2019). Evaluation of Moisture Sensitivity of Modified Asphalt Mixtures with Crystal Calcium Carbonate Powder. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 32(3 ), 1-16. SID. https://sid.ir/paper/195913/en

Vancouver: Copy

Hamedi Gholam Hossein, Sohrabi Mohsen. Evaluation of Moisture Sensitivity of Modified Asphalt Mixtures with Crystal Calcium Carbonate Powder. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2019;32(3 ):1-16. Available from: https://sid.ir/paper/195913/en

IEEE: Copy

Gholam Hossein Hamedi, and Mohsen Sohrabi, “Evaluation of Moisture Sensitivity of Modified Asphalt Mixtures with Crystal Calcium Carbonate Powder,” JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 32, no. 3 , pp. 1–16, 2019, [Online]. Available: https://sid.ir/paper/195913/en

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