Experimental Studies for Shear and Multi-Impact Resistance Performance of Sand–Geofoam Material
, Baoying Zhu 1, Peng Zhao 2, Li Wan 3,*, Yifan Wang 1 and Rong Zhao 1
Round 1
Reviewer 1 Report
This paper focus on the shear performance of Sand-EPS beads mixture material and the impact resistance of Sand-EPS beads and Sand-flocculent EPE layered composite materials by direct shear tests and multi-impact tests. This paper is well written, so reviewer suggests following points to improve.
・The introduction and conclusion are a little redundant.
・If the experiment parameters are based on some reasons, please add the explanation.
・I could not judge whether the acceleration values observed in impact tests are close to actual value or not, so please add some comments.
・At Line number 360-364, the content is duplicate.
・At Line number 432-433, the peak acceleration is not similar to pure sand.
Author Response
Dear reviewer,
Thank you for your letter and for the reviewer’ comments concerning our manuscript entitled ‘Experimental studies for shear and multi-impact resistance performances of Sand-geofoam material’. These comments are all most valuable and very helpful for revising and improving our paper, as well as providing important guiding significance to our research. We have studied the comments carefully and have made changes which we hope meet with approval. The main corrections in the paper and the response to the reviewer’s comments are as follows.
Yours sincerely
Li Wan, on behalf of all the Authors
Reviewer: 1:
- The introduction and conclusion are a little redundant.
Answer：some redundant content in the first paragraph in Section 1 has been deleted .
- If the experiment parameters are based on some reasons, please add the explanation.
Answer：The reasons were given in the last paragraph in Section 1 and in the first paragraph in Section 2.1.2.
- I could not judge whether the acceleration values observed in impact tests are close to actual value or not, so please add some comments.
Answer：This paper is an impact experiment done in the laboratory. It is different from the actual cushion of the rock-shed structure, and it cannot be completely compared with the actual value. On the basis of the laboratory, the next step is to carry out field experiments and conduct in-depth research in the later stage.
- At Line number 360-364, the content is duplicate.
Answer：The duplicate content has been removed.
- At Line number 432-433, the peak acceleration is not similar to pure sand.
Answer：Yes. In fact, the acceleration of sand-epe is greater than that of the pure sand.
Reviewer 2 Report
The done an Experimental investigation for shear and multi-impact resistance performances of Sand-geofoam material , here are few suggestions to improve the article
1. Figure 13 must be have the bar chart, the impact number should be below
2. The paper has several typos. Authors need to proofread the paper to eliminate all of them.
3.Contributions should be highlighted more. It should be made clear what is n ovel and how it addresses the limitations of prior work.
4. The authors should explain clearly what the differences are between the prior work and the solution presented in this paper.
5. The authors should first give an overview of their solution before explaining the details.
6. The experiments should be updated to include some comparison with newer studies.
Author Response
Dear reviewer,
Thank you for your letter and for the reviewer’ comments concerning our manuscript entitled ‘Experimental studies for shear and multi-impact resistance performances of Sand-geofoam material’. These comments are all most valuable and very helpful for revising and improving our paper, as well as providing important guiding significance to our research. We have studied the comments carefully and have made changes which we hope meet with approval. The main corrections in the paper and the response to the reviewer’s comments are as follows.
Yours sincerely
Li Wan, on behalf of all the Authors
- Figure 13 must be have the bar chart, the impact number should be below.
Answer：Yes. In fact, the acceleration of sand-epe is greater than that of the pure sand.
- Figure 13 must be have the bar chart, the impact number should be below
Answer：It was revised according to the review comment.
- The paper has several typos. Authors need to proofread the paper to eliminate all of them.
Answer：It was revised according to the review comments. In the paper, it is shown in green font.
- Contributions should be highlighted more. It should be made clear what is n ovel and how it addresses the limitations of prior work.
Answer：It has been added in the last paragraph in Section 1. In the paper, it is shown in red font.
- The authors should explain clearly what the differences are between the prior work and the solution presented in this paper.
Answer：The paper explained the prior work using the sentence “Only Zhao et al. [2-4] has studied the impact resistance of the sand and EPE block cushion, but no one has studied the impact resistance of the Sand-EPS beads and Sand-flocculent EPE layered composite materials.” in Section 1.the prior work mainly was about the impact performance of sand-EPS block. This paper mainly studied the impact performance of sand-EPS beads and sand- flocculent EPE material.
- The authors should first give an overview of their solution before explaining the details.
Answer：It has been added in the last paragraph in Section 1. In the paper, it is shown in red font.
- The experiments should be updated to include some comparison with newer studies.
Answer：According to the review comments, it has been revised and shown in red font in section 4. As there is almost no literature on the effect of the moisture content, there is no comparison about it.
Reviewer 3 Report
The article addresses an important and very interesting topic of the experimental studies for shear and multi-impact resistance performances of sand-geofoam material, which is appreciated. The study includes the experimental research. This paper focused on the shear performance of Sand-EPS beads and the buffer performance of Sand-EPS beads and Sand-EPE layered composite materials to resist impact load. The Reviewer has some concerns regarding the introduction, conclusions and references. In addition, the English language is good but some sentence should be more clear. Please check the text of Native Speaker. In opinion of Reviewer this paper should be subjected to major revision.
Other comments:
- Please explain more clearly what differences are between your research and previous research cited in the text (more detailed)? In addition, please explain more clearly what is novelty of your research?
- Generally, the introduction is really wide but in opinion of Reviewer should be enriched with papers on the topic of practical using of EPS (especially as seismic damping layer) e.g.:
- https://doi.org/10.3390/geosciences9100448
- https://doi.org/10.1016/j.geotexmem.2015.04.019
- https://doi.org/10.1007/978-3-319-78981-1_1
- Table 1 – please explain the thickness of particular sampling e.g. show on the picture etc. In present version is not clear.
- In the discussion, please compare your results with similar research, which were cited in the text. In addition, please explain the tendency and what have impact of your research.
- Please improve the conclusions, because of in current version are poor, simple and obvious. Please show the most important tendency/mechanism of your research using e.g. bullets.
- What is mean line 527 – 537?
- References should be improved. Please add a few papers about similar research (look on the point 2). This is good journal of your research? The Reviewer cannot see paper from Buildings Journal.
- Please check all paper with the template of this Journal (Refeneces).
And the end I hope that my comments will be helpful for the authors.
Author Response
Dear reviewer,
Thank you for your letter and for the reviewer’ comments concerning our manuscript entitled ‘Experimental studies for shear and multi-impact resistance performances of Sand-geofoam material’. These comments are all most valuable and very helpful for revising and improving our paper, as well as providing important guiding significance to our research. We have studied the comments carefully and have made changes which we hope meet with approval. The main corrections in the paper and the response to the reviewer’s comments are as follows.
Yours sincerely
Li Wan, on behalf of all the Authors
- Please explain more clearly what differences are between your research and previous research cited in the text (more detailed)? In addition, please explain more clearly what is novelty of your research?
Answer：It has been added in Section 1. In the paper, it is shown in red font and as follows
Based on the above literature analysis, scholars have studied the static and dynamic characteristics of Sand-EPS mixture in many researches. However, no one has studied the impact resistance of the Sand-EPS beads cushion, and few authors have studied the effect of the moisture content on shear strength by direct shear test. Therefore, more tests are re-quired to study the effect of the moisture content on the shear strength of the Sand-EPS beads mixture. Only Zhao et al. [2-4] has studied the impact resistance of the sand and EPE block cushion, but no one has studied the impact resistance of the Sand-EPS beads and Sand-flocculent EPE layered composite materials.
For the lack of research on the effect of the moisture content on the shear strength of Sand-EPS beads and the impact performance of Sand-flocculent EPE material, the direct shear tests and multi-impact tests were carried out.
- Generally, the introduction is really wide but in opinion of Reviewer should be enriched with papers on the topic of practical using of EPS (especially as seismic damping layer) e.g.:
https://doi.org/10.3390/geosciences9100448
https://doi.org/10.1016/j.geotexmem.2015.04.019
https://doi.org/10.1007/978-3-319-78981-1_1
Answer：It has been added in the paper.
- Table 1 – please explain the thickness of particular sampling e.g. show on the picture etc. In present version is not clear.
Answer：Particular samples are explained, as shown in red font in section 2.2.2.
- In the discussion, please compare your results with similar research, which were cited in the text. In addition, please explain the tendency and what have impact of your research.
- Please improve the conclusions, because of in current version are poor, simple and obvious. Please show the most important tendency/mechanism of your research using e.g. bullets.
Answer：According to the review comments, it has been revised and shown in red font in section 4. As there is almost no literature on the effect of the moisture content, there is no comparison about it.
- What is mean line 527 – 537?
Answer：Sorry, I cannot understand the comment. In the file, the line 527 – 537 is about Acknowledgements.
- References should be improved. Please add a few papers about similar research (look on the point 2). This is good journal of your research? The Reviewer cannot see paper from Buildings Journal.
- Please check all paper with the template of this Journal (Refeneces).
Answer：According to the review comments, it has been revised. I cannot find anything about sand and foam in Buildings, so it does not include the literature in Buildings
Round 2
Reviewer 3 Report
Thank you for your improving. The current version of this paper I would like to recommend to published.
