Strength Properties of Various Types of Fiber-Reinforced Concrete for Production of Driven Piles
Round 1
Reviewer 1 Report
This manuscript investigates the static and dynamic strength properties of concrete reinforced with various types of fibers. Experiments are performed, which yield significant results. In general, this manuscript is well written and organized. Some revisions are required following the specific comments presented below.
(1) To increase the readability, please list the properties of the concrete aggregates in a Table.
(2) The water consumption of sand is not provided.
(3) The language needs to be improved. e.g., Lines 59 – 60, 76 – 77, 169 - 170.
(4) In Table 1, what is the meaning of “mcm”?
(5) Please provide definitions for the parameters “percentage of reinforcement” and “bulk density”.
(6) The position of Figure 3 is not appropriate.
(7) The description “the fiber type has a positive effect on” is difficult to understand. what do you mean by “positive effect”?
(8) The use of fibers for reinforcing materials is also common in soil science. It is recommended that previous studies on fiber-reinforced soils are discussed and relevant articles are cited in the Introduction (e.g., Laboratory investigation on strength characteristics of expansive soil treated with jute fiber reinforcement; Behavior and Modeling of Fiber-Reinforced Clay under Triaxial Compression by Combining the Superposition Method with the Energy-Based Homogenization Technique; Study on strength influence mechanism of fiber-reinforced expansive soil using jute; Behavior of fiber-reinforced and lime-stabilized clayey soil in triaxial tests; Numerical analysis of fiber-reinforced soils based on the equivalent additional stress concept).
Moderate editing of English language required.
Author Response
Dear Reviewer,
Here we are sending you response to your comments. Please see the attachment.
Author Response File: 
Author Response.docx
Reviewer 2 Report
The paper presents the results of static and dynamic tests of fiber-reinforced concrete samples and unreinforced concrete samples under laboratory conditions. It was revealed out that not always high static strength of fiber concrete provides high impact resistance. The research has some engineering value. The logical structure of the paper is reasonable, but there are still some problems. In this regard, the following suggestions are put forward:
1.Please explain the types of specimens represented by each shape in Figures 5-13.
2.Please check Table 1, e. g. mcm in line 3; And there are 2 Figure.4 in the paper, check the figure number.
3.The discussion on the mechanism is too simple. It should be strengthened.
4.Please revise the conclusion in paragraphs. The key points should be highlighted, the language should be smooth, concise and refined. Please make it more concise and show only the high impact outcomes. Avoid bullet form.
The presentation should be further improved by native speakers, especially for thoes grammatical errors, typographical errors, and bad structured sentences.
Author Response
Dear Reviewer,
Here we are sending you response to your comments. Please see the attachment.
Author Response File: Author Response.docx
Round 2
Reviewer 1 Report
Some problems have been addressed. However, the quality of the Introduction has not been improved. Literature review is not sufficient, which damages the novelty of the research work. Latest articles on the use of fibers for reinforcing other construction and building materials must be cited for the benefit of readers.
Minor editing of English language required
Author Response
Dear Reviewer,
Here we are sending you corrected file of the manuscript. Please, see attachment.
Author Response File: Author Response.docx
Round 3
Reviewer 1 Report
The revision is satisfactory. It can be accepted for publication.
