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Effects of fly ash on the evaporation and cracking characteristics of soda soil
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  • Binbin Yang,
  • Jiawei Liu,
  • xiaoming Zhao,
  • Sen Zheng
Binbin Yang
Xuchang University
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Jiawei Liu
Henan University of Urban Construction
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xiaoming Zhao
Xuchang University
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Sen Zheng
Xuchang University
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Abstract

Soil salinization seriously affects the movement of water in soil which then affects soil stability and sustainability in industrial and agricultural development. Fly ash, one of the most discarded solid wastes from coal-fired power plants, has been widely used as a recycled resource in recent years. The basic components of soda soil have been investigated through laboratory experiments. Soda soil samples with different amounts of fly ash are tested to study the changes in the characteristics of the material due to changes in water content and evaporation rate during drying. Changes in fractal and crack intensity factor are calculated based on digital image processing technology. The results show that the residual water content of soda soil increases from 8.55% to 16.22% with increases in the fly ash content. Fly ash can improve the water retention capability of soda soil, with a rate of increase of 89.68%. The average length of the surface cracks gradually decreases with increase in fly ash content, which indicates that fly ash can effectively inhibit the development of surface cracking in soil. The rate of cracking is an important measure for characterizing the development of cracks by measuring the area of the cracks. The crack area gradually decreases with increase in the fly ash content with different rates of cracking. The rate of cracking with a fly ash content of 10% is relatively slow, which indicates that 10% fly ash can effectively reduce cracking in soda soil thus resulting in a high residual water content.

Peer review status:ACCEPTED

23 Sep 2020Submitted to Land Degradation & Development
23 Sep 2020Submission Checks Completed
23 Sep 2020Assigned to Editor
01 Oct 2020Reviewer(s) Assigned
23 Oct 2020Review(s) Completed, Editorial Evaluation Pending
23 Oct 2020Editorial Decision: Revise Major
23 Dec 20201st Revision Received
23 Dec 2020Assigned to Editor
23 Dec 2020Submission Checks Completed
09 Jan 2021Review(s) Completed, Editorial Evaluation Pending
11 Jan 2021Editorial Decision: Revise Major
04 Feb 20212nd Revision Received
04 Feb 2021Submission Checks Completed
04 Feb 2021Assigned to Editor
01 Mar 2021Review(s) Completed, Editorial Evaluation Pending
01 Mar 2021Editorial Decision: Revise Minor
28 Mar 20213rd Revision Received
29 Mar 2021Submission Checks Completed
29 Mar 2021Assigned to Editor
29 Mar 2021Review(s) Completed, Editorial Evaluation Pending
03 Apr 2021Editorial Decision: Accept