Grey Correlation Analysis of Physical Properties and Evaluation Index of Graphene-Oxide-Modified Asphalt
Round 1
Reviewer 1 Report
The article is about Grey correlation analysis of physical properties and evaluation index of graphene oxide modified asphalt. However, some issues must to be addressed:
- Abstract: Please start by expressing the aim of this paper, followed by the rest of the information. Typically, the abstract should provide a broad overview of the entire project, summarize the results, and present the implications of the research or what it adds to its field.
- Please add information in introduction section by adding newest articles related from 2022.
- Please avoid bulk citations like [7-9], [10-12] …
- Line 75: what is 90#??? Please provide more details.
- Section 3.2.1: is better to erase de description of Grey method and use references.
- The results are merely presented, not properly discussed. Please add explanations for the observed changes. Please give an extended discussion on the obtained results and correlate your findings with previous literature studies and prospective applications.
- More analysis and interpretation of the results should be added for a clearer understanding of observed experimental phenomena.
- The authors must to provide some details about importance of the research and their applicability.
- Please introduce the conclusion section in order to highlight the results obtained.
- General check-up and correction of the English language is suggested. There are still too many minor typos and grammatical errors.
The author needs to address the abovementioned points for the betterment of the manuscript.
Author Response
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Reviewer 2 Report
Abstract: Lines 14-15 the text „the correlation coefficient between the content of graphene oxide” is duplicated.
Moreover, the text “and the gray correlation analysis was used to calculate the correlation coefficient between the content of graphene oxide and The correlation coefficient between graphene oxide content and performance of graphene oxide modified asphalt was calculated using gray correlation analysis to determine” presents a multiple repetition .
Keywords: grey correlation or gray correlation? It has to be verified and used uniformly throughout the text.
Introduction: More information devoted to the direct description of asphalt (composition, properties, references to relevant literature) has to be provided.
Materials: the composition of the analysed asphalt has to be presented in the form of a table.
The title of the 2.2.1. section “Asphalt Preparation”. Taking into account that asphalt was provided by a specific manufacturer (Panjin), the Authors performed asphalt modification rather than preparation.
The title of Figure 1 is inappropriate.
Line 141 What types of “macromolecular chain segments” are present in asphalt?
It is not clearly discussed why in the case of the sample containing 1% of GO the viscosity is higher than in the case of material filled with 2% of GO? This needs to be clarified.
Line 152 “Penetration The penetration” Please correct all duplications in the text.
Tables 3, 4 and Figures 4– statistical analysis (Anova) should be provided.
Lines 164-165 “asphalt showed a trend of decreasing and then increasing with the increase of GO content,…” In my opinion, obtained results do not present any particular trend. They are not applicable.
Section “4. Discussion” comprises observations rather than discussion and should be significantly improved, including comparative analysis based on other relevant publications. Moreover, the interactions between the additive and the asphalt components should be described and discussed.
Author Response
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Reviewer 3 Report
The article describes an interesting approach for determining the content of graphene oxide in modified bitumen, which can be used to control the uniformity of mixing in the production of modified bitumen, as well as to control the process of their phase segregation.
1. Authors have to read the article more carefully and correct misprints: P. 1 line 13-14, P. 4 line 153.
2. What does "90# matrix asphalt" mean? what grade is it according to the European specification?
3. In fig. 4 a and b there is no signature under the last column.
4. P. 7 line 270. The minimum value of S, then the GO content is 1%, not 0.5. P. 7. line 277. maximum value of m, then the GO content is 1%, not 0.5% (fig. 4). Therefore, in the conclusions the low-temperature cracking resistance is better than the GO amount is 1%.
5. lines 228-232. What does it mean that "asphalt contains more light components"? Which? Asphalt contains saturates, aromatics, resins and asphaltenes. Saturates are the lightest, asphaltenes are the heavest, high molecular weight. Graphene oxide is similar in composition to asphaltenes. Possibly, the crosslinked network is formed due to intermolecular interactions between asphaltenes and graphene oxide.
6. table. 3. Usually the viscosity increases with the content of the dispersed phase (in the article it is graphene oxide). Is the decrease in viscosity with an increase in the concentration of graphene oxide due to the process of phase segregation?
Author Response
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Round 2
Reviewer 1 Report
The article is suitable for publication.
Author Response
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Reviewer 2 Report
There is still a lack of information devoted to the direct description of asphalt (composition, properties, references to relevant literature).
There is still a lack of information devoted to the composition of the purchased base asphalt.
The Authors do not know what kind of “macromolecular chain segments” are present in asphalt. For this reason, the text has to be changed.
Tables 7 and 8 do not present Anova statistical analysis
Author Response
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