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Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry

Using fiber and cement to modify waste slurry and apply it to roads is an effective way to recycle waste slurry. A new type of road material, fiber–cement-modified waste slurry (FRCS), was prepared in this study. The static and dynamic characteristics of the cement soil were studied using an unconfi...

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Autores principales: Ye, Jiahao, Jiang, Ping, Chen, Lejie, Zhou, Xuhui, Rao, Fei, Tang, Xinyi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458154/
https://www.ncbi.nlm.nih.gov/pubmed/37631492
http://dx.doi.org/10.3390/polym15163435
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author Ye, Jiahao
Jiang, Ping
Chen, Lejie
Zhou, Xuhui
Rao, Fei
Tang, Xinyi
author_facet Ye, Jiahao
Jiang, Ping
Chen, Lejie
Zhou, Xuhui
Rao, Fei
Tang, Xinyi
author_sort Ye, Jiahao
collection PubMed
description Using fiber and cement to modify waste slurry and apply it to roads is an effective way to recycle waste slurry. A new type of road material, fiber–cement-modified waste slurry (FRCS), was prepared in this study. The static and dynamic characteristics of the cement soil were studied using an unconfined compressive strength test and dynamic triaxial test. The results show that the optimum fiber content of FRCS is 0.75%. In the unconfined compressive strength test, under this fiber content, the unconfined compressive strength (UCS) of the FRCS is the largest, and the elastic modulus and modulus strength ratio are both the smallest, indicating that the tensile properties of the cement slurry have been enhanced. In the dynamic triaxial test, the hysteretic curve of the FRCS tends to be stable with the increase in the number of cycles, the dynamic elastic modulus of the FRCS decreases first and then increases with the increase in the dosage, while the damping ratio becomes stable after a rapid decline, and the fiber incorporation increases the cumulative strain of the soil–cement under low-stress cycles, indicating that the ductility of the FRCS is improved. In addition, a cumulative strain prediction model of the FRCS is established in this paper, which can provide a reference for the resource application of waste slurry in road engineering.
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spelling pubmed-104581542023-08-27 Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry Ye, Jiahao Jiang, Ping Chen, Lejie Zhou, Xuhui Rao, Fei Tang, Xinyi Polymers (Basel) Article Using fiber and cement to modify waste slurry and apply it to roads is an effective way to recycle waste slurry. A new type of road material, fiber–cement-modified waste slurry (FRCS), was prepared in this study. The static and dynamic characteristics of the cement soil were studied using an unconfined compressive strength test and dynamic triaxial test. The results show that the optimum fiber content of FRCS is 0.75%. In the unconfined compressive strength test, under this fiber content, the unconfined compressive strength (UCS) of the FRCS is the largest, and the elastic modulus and modulus strength ratio are both the smallest, indicating that the tensile properties of the cement slurry have been enhanced. In the dynamic triaxial test, the hysteretic curve of the FRCS tends to be stable with the increase in the number of cycles, the dynamic elastic modulus of the FRCS decreases first and then increases with the increase in the dosage, while the damping ratio becomes stable after a rapid decline, and the fiber incorporation increases the cumulative strain of the soil–cement under low-stress cycles, indicating that the ductility of the FRCS is improved. In addition, a cumulative strain prediction model of the FRCS is established in this paper, which can provide a reference for the resource application of waste slurry in road engineering. MDPI 2023-08-17 /pmc/articles/PMC10458154/ /pubmed/37631492 http://dx.doi.org/10.3390/polym15163435 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ye, Jiahao
Jiang, Ping
Chen, Lejie
Zhou, Xuhui
Rao, Fei
Tang, Xinyi
Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry
title Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry
title_full Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry
title_fullStr Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry
title_full_unstemmed Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry
title_short Strength and Deformation Characteristics of Fiber and Cement-Modified Waste Slurry
title_sort strength and deformation characteristics of fiber and cement-modified waste slurry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458154/
https://www.ncbi.nlm.nih.gov/pubmed/37631492
http://dx.doi.org/10.3390/polym15163435
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