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Materials
Volume 15
Issue 21
10.3390/ma15217551
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Article
Peer-Review Record

Shear Viscosity Overshoots in Polymer Modified Asphalts

Materials 2022, 15(21), 7551; https://doi.org/10.3390/ma15217551
by Martin Jasso 1, Giovanni Polacco 2,* and Ludovit Zanzotto 3
Reviewer 1:
Munder Bilema
Reviewer 2:
Krisada Chaiyasarn
Materials 2022, 15(21), 7551; https://doi.org/10.3390/ma15217551
Submission received: 2 September 2022 / Revised: 18 October 2022 / Accepted: 19 October 2022 / Published: 27 October 2022
(This article belongs to the Section Construction and Building Materials)

Round 1

Reviewer 1 Report


Comments for author File: Comments.pdf

Author Response

Please see attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Shear viscosity overshoots in polymer modified asphalts

The article investigate the conditions that favour structural tran-sitions associated with shear thickening in PMAs obtained with SBS triblock copolymers with or without the addition of sulfur and/or polyphosphoric acid (PPA), that strongly influence the internal structure of these binders. Sulfur is the most common vulcanization agent and, in SBS modified asphalt, it is used to promote the formation of chemical bridges between polymer chains.

This study is very interesting. Few comments are given below to further improve the quality of the article.

Abstract need revision with some quantitative results.

Some more latest studies are required in the introduction section to further highlight the importance of this study.

Sanchana, I. C., Sandeep, I. J. S., Divya, P. S., Padmarekha, A., & Murali Krishnan, J. (2022). Determination of linearity limit of bitumen and mastic using large-amplitude oscillatory shear. International Journal of Pavement Engineering, 1-15.

Shalabi, F. I., Mazher, J., Khan, K., Alsuliman, M., Almustafa, I., Mahmoud, W., & Alomran, N. (2019). Cement-stabilized waste sand as sustainable construction materials for foundations and highway roads. Materials, 12(4), 600.

Genreally, the quality of graphs is very poor.

Authors must summarized results in more systematic way with reference to the previous studies.

Please further shorten the conclusions.

 

Author Response

Please see attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Only one comment, 

I suggest the authors to replace the old references with modern references.  one of the references is more than 40y old. [26, 24, 13, 5, and 4] 

My regards...

Author Response

References 13, 24 and 26 were replaced. References 4 and 5 were maintained since the papers by Macosko are sort of milestone and deserve to be cited. Nevertheless, other more recent references were added.

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