Mechanics, Durability, and Reinforcement Mechanism of Red Clay Soils Stabilized by the Consolid System
Publication: Journal of Materials in Civil Engineering
Volume 35, Issue 3
Abstract
The original red clay can be used as a construction material after being stabilized. The use of the Consolid system for reinforcement has the advantages of being green, convenient, and fast. The improvement of the Consolid system on the mechanical properties and durability performance of red clay was investigated and the enhancement mechanism was revealed in terms of micromorphology, pore structure, soil-water characteristics, and water repellency. The effects were also compared with those of traditional lime and cement stabilization. The results show that the Consolid system can significantly enhance the mechanical properties and durability of red clay, far exceeding lime stabilization and approaching or slightly exceeding cement stabilization. The Consolid system improves the mechanical properties of the soil by increasing the attraction and bonding between the clay particles, leading to agglomeration of soil particles and the formation of flocculent structures. In addition, the components of the Consolid system can further fill the pores, increasing the overall compactness and reducing the pore volume, so that the suction of the soil matrix is reduced and the water absorption capacity is weakened. This is demonstrated by the fact that the original structure can remain undamaged after being washed with water.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This study was financially supported by the Innovation Ability Training Program for Doctoral Students in Chang’an University (Grant No. 300203211214), the Natural Science Basic Research Plan in Shaanxi Province of China (Program No. 2020JZ-22), and the National Natural Science Foundation of China (Grant No. 52078050). The authors thank the reviewers of this paper for their comments and suggestions.
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Journal of Materials in Civil Engineering
Volume 35 • Issue 3 • March 2023
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© 2022 American Society of Civil Engineers.
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Received: Dec 15, 2021
Accepted: Jun 20, 2022
Published online: Dec 24, 2022
Published in print: Mar 1, 2023
Discussion open until: May 24, 2023
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