Performances of the Synergy of Silica Fume and Waste Glass Powder in Ternary Blended Concrete

Round 1

Reviewer 1 Report

The work presented by author on ternary binder will be improved with more discussions and comments

Observations and remarks are in the text. 

 

Comments for author File: Comments.pdf

Author Response

Dear Reviewer 1,
We appreciate the time taken for the review of our article and we have effected all the changes as advised and as noticed in the attachment. 

1. Error bars are added to the figures
2. Further discussion (as advised) is provided on workability and sample nomenclature was updated for C90G10S0.
3. Spectrum and SEM images improved.
4. Last conclusion is reviewed for more clarity.
5. Figs 1 and 3 (SEM images) improved with proper magnifications.
6. Fig. 7 is retitled.
7. Equation 2 is modified.
8. See the attachment with the reviewed manuscript.
   
   Thanks
   Moruf

Author Response File: Author Response.docx

Reviewer 2 Report

Please, see the attachment.

Comments for author File: Comments.pdf

Author Response

We appreciate the time taken for the review of our article and we have effected all the changes as advised and as noticed in the attachment. 

Author Response File: Author Response.pdf

Reviewer 3 Report

Professional approach with specific data and analysis, with minor corrections, the text is absolutely ready for publication.

Comments for author File: Comments.docx

Author Response

Dear Reviewer 2,
We appreciate the time taken for the review of our article and we have effected all the changes as advised and as noticed in the attachment. 

The analysis of the submitted article revealed several claims that are not completely clear, so please be more detailed explanations:

 Authors' response:  Thanks for your input towards improving the quality of the paper and more details have been provided as advised

 In the part of the text from Figure 3, raise the image marked "A" to the level where the other two images are;

Authors' response:  The figure is raised as advised

2. Is the laboratory equipment used for the tests moderate, i.e., how do you prove that the equipment meets the test methods' requirements?

Authors' response:  All the equipment are calibrated periodically and the experiments were conducted with experts in the field of interest.

3. In accordance with which method/rule, the method of concrete mixing is defined-state;

Authors' response:  The mixing is done according to ASTM C192/C192M-15.

4. Is there a standard specification that can be used to declare silicon dust suitable for concrete preparation (as in EN 13263-1);

Authors' response:  We referenced ASTM C1240-20 Standard Specification for Silica Fume Used in Cementitious Mixtures within the article.

5. whether tests have been performed to demonstrate the durability properties, and if so, which ones.

Authors' response:  : The test is conducted to study influence of combination of silica fume with glass waste for the determination of 28-day compressive strength hence the durability studies are being considered in our current and ongoing studies.

6. According to which method was the BET test performed—specific area determination (ASTM, EN...); what quantity of the sample was tested; and what grain size?

Authors' response:  : According to ASTM D4567-19 Standard Test Method for Single-Point Determination of Specific Surface Area Using Nitrogen Adsorption by Continuous Flow Method while the quantity of sample is  0.2 g with cold free space of 33.3786 cm³ with particle size ranges from 0.5-0.73 microns with D50 of 0.614 microns.

7. Whether there are photographs of test samples-add;

Authors' response:   : We have various pictures  but keeping the manuscript pages to the minimum possible made us remove all experimental images.

8. Have improved properties been observed in relation to the segregation of the concrete mix? (Please comment)

Authors' response:  : There is improvement in the workability of the concrete which implies that the combination of the waste glass powder and silica fume improves the concrete consistency and cohesiveness.

9. whether improved properties in relation to water separation of the concrete mixture were noticed during the test-please comment.

Authors' response:  : No bleeding of water was observed in the concrete

10. Is it possible to show and comment on the dependence of density and porosity of mixtures?

Authors' response:   It was noticeably observed that glass enhances water absorption in concrete while Silica fume reduces it due to micropore filling effect. However, the combination of the will keep this characteristics in both ends at moderate level. Section 3.2 of the paper give more details about this characteristics.

The paper can be published after the corrections have been made. Please send the paper again after the authors make corrections.

Authors' response:   Thanks

Thanks
Moruf

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

Authors have corrected some remarks

but others remarks steal not corrected

Comments for author File: Comments.pdf

Author Response

Please see the attachment. 

Author Response File: Author Response.pdf