Evaluation of High-Temperature Performance of Asphalt Mixtures Based on Climatic Conditions

Round 1

Reviewer 1 Report

Dear Editor,

Thanks for your invitation to review The Manuscript coatings-815571 for your journal.

The Manuscript is well-written, and I suggest minor amendments in the attached pdf file, to improve the quality of the Manuscript.

Regards,

Comments for author File: Comments.pdf

Author Response

Please see attachment

Author Response File: Author Response.pdf

Reviewer 2 Report

This manuscript presents a study related with performance of some asphalt mixtures under different climate conditions. The authors defend that 1-hour duration of a rutting test does not accurately reflect the actual rut situation of a long period of rolling and they have carried out a series of 4-hour duration tests. They have proposed a new index, the temperature rutting rate, to be used in the current computations.  

The manuscript is generally well written and the explanations are sound. However, there are some points that might be improved. A list of comments/suggestions follows:

1. Page 1, line 32. “with major drawback” replace with: “with a major drawback”.
2. Page 3, Table 1. Avoid to have a parenthesis alone in one line.
3. Page 5, Fig 3 and lines 165, 166. Add the statistical information of the fitting curves.
4. Page 6, Fig. 4. Bar charts would be better than line charts.
5. Page 8, line 264. “aberration”. This is not the best word. Probably “particularity” would be a better word.
6. Page 8, line 272. “Majority of the times” replace with: “Most of the times”.
7. Page 9, line 281. “ºC, and 35ºC”. Avoid the separation of “30” and “ºC”.
8. Page 9, Fig 5. “temperature at four” replace with: “temperature for four”.
9. Page 9, Table 6. Avoid to have a parenthesis alone in one line.
10. Page 10, Table 7. Avoid to have the superscript ^-5 separated from the base.
11. Page 10, Table 7. Keep the decimal places. For instance: “4.0” instead of “4” and “0.70” instead of “0.7”.

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

Comments

This paper investigated asphalt mixtures at high temperature. The outcome is interesting for readers. However, there are several aspects that need to be improved. The reviewer can only recommend for publication if the author satisfactorily address the following comments in the revised version.

1. What is the justification of selecting matrix AC-16 asphalt mixture, SMA-16 asphalt mixture, and modified AC-16 asphalt mixture? Any strong reason behind that?
2. How the Equation (5) was obtained? This need to be explained.
3. What is the effect of temperature on rutting test results for a particular asphalt mixture?
4. The literature on the effect of temperature need to be improved. Khotbehsara et al. found that the properties of the mixture can retain up to 72% at 80⁰C temperature [Ref: Effect of elevated in-service temperature on the mechanical properties and microstructure of particulate-filled epoxy polymers]. Ferdous et al. observed that the glass transition temperature is critical for a mixture above which the properties degrade significantly [Ref: Optimal design for epoxy polymer concrete based on mechanical properties and durability aspects]. This information will add value to the literature and suggest to include.

Author Response

Please see attachment.

Author Response File: Author Response.pdf

This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.