Investigation into the Enhancement Characteristics of Fly Ash and Polypropylene Fibers on Calcium Carbide-Residue-Stabilized Soil

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

the paper presents the stablization technique to improve the choesive soil using both Fly Ash and Polypropylene Fiber 

thses stidies has been widely adopted withe details therefore the author should be made a compartive study with other in the manuscript

- the compacted density should be mentioned with details

- the authors need to add a new and recent advance in analysis to shed the light in the benfit of such mentod like TEM ans SEm to study the microstructural analysis

-the new composite materails should be investigated and materils stifness

- It has been mention that it may be used in road as a subase so the pavement hear may be effect on the response of new composite material

the effect of heat transfer from pavement installtion should be considered with details

 

 

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Comments on the Quality of English Language

plagrism check and editing fro laguage by native  should be considered by confirmed certificate

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

The CCR is employed as a stabilizing agent in soil for road base and sub-base material to optimize the utilization of solid waste materials and reduce the expenses in the road construction, which has been studied for many years. However, the difference is that the fyl ash and polypropylene fiber are also mixed in the mixtures. Therefore, I think this paper can be considered in this journal. The following suggestions for the authors' reference during the revision.

(1) Fiber is relatively light, so how to ensure the uniformity of fiber in the CCR-soil mixture?

(2) In Table 1, The unit of Plasticity index is not %, and it is unitless.

(3) In Table 2, why the sum of chemical composition is not 100%?

(4) In Table 4, the density of fiber is 3.97g/cm3?? and this density is far larger than that of soil. I think the density value is wrong.

(5) Please explain the applicaiton method of this study result in futher.

Comments on the Quality of English Language

The English quality needs to be improved.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

This study investigated the impact of incorporating fly ash and PPF into CCR-stabilized soil, focusing on key soil properties relevant to road construction, such as unconfined compressive strength, splitting strength, and water stability. The study's experimental design and data analysis were presented in a clear and accessible manner. The utilization of fly ash and PPF holds promise for sustainability and environmental benefits. I only have a few comments:

1.    On Page 1, it would be beneficial to include references to support the statements made in the introduction.

2.    I noticed that the total percentage of components in both Table 2 and Table 3 does not sum to 100%. Could you please provide clarification?

3.    On Page 3, it would be helpful if the authors could explain the rationale behind selecting the CCR contents as well as the fly ash to CCR ratio.

 

4.    Could the authors provide some information about "rc(%)" in Table 5 and the designations "A," "B," and "C" in Table 6?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

the author should be mentioned to obtained density of composite new treated materilas and corrsponding strength

the modulus of elasticity can be obtained to show the improved stifness

Comments on the Quality of English Language

may be improved