Strength and hygroscopic behavior of biopolymer-treated silty sand under remodeling and dry-wet cycles
文献类型：期刊论文
| 作者 | He, Xingxing3; Xue, Jianfei1; Liao, Mingji4; Wan, Yong1; Liu, Xiaoli3; Chen, Yijun1,2; Xue, Qiang1
|
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2023-12-08 |
| 卷号 | 408页码:11 |
| 关键词 | Biopolymer-solidified soil Remodeling cycles Dry -wet cycles Unconfined compressive strength Hygroscopicity Micro -mechanism |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2023.133642 |
| 英文摘要 | The soil construction materials are usually subjected to repeated remodeling in engineering applications, such as subgrade or foundation filling. However, the mechanical behavior of biopolymer-solidified soils (BSS) after remodeling is still unclear. This study used two biopolymers, xanthan gum (XG) and guar gum (GG), as representatives to improve the mechanical properties of silty sand dredged from the Yellow River. The unconfined compressive strength (UCS), hygroscopicity, and microstructure properties of BSS were analyzed through a series of experiments considering the remodeling cycles (including dry-wet cycles). Results showed that when the biopolymer content reached 1%, both XG and GG solidified soils exhibited good self-healing ability of strength and microstructure under remodeling cycles. The mechanical properties and durability of XG under remodeling cycles are obviously better than those of GG. Moreover, the hygroscopicity of BSS gradually decreased with an increase in dry-wet cycles. FTIR results indicated that during the first five dry-wet cycles, the properties of hydrophilic groups in XG and GG remained stable, and the hydrolysis degree of XG and GG molecular chains further increased, which confirms the strength improvement of BSS during the remodeling cycles. |
| 资助项目 | National Natural Science Foundation of China[52209134] ; National Natural Science Foundation of China[51979267] ; Major science and technology program of Inner Mongolia[2021ZD0007] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering ; Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME021030] ; Youth Science Foundation of Jiangsu Province of China[KB20220230] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001090438500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39778]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wan, Yong; Xue, Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Wuhan CAS ITRI Solid Waste Resources Co Ltd, Wuhan 430074, Peoples R China 3.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 4.Liaoning Tech Univ, Coll Environm Sci & Engn, Fuxin 123000, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xingxing,Xue, Jianfei,Liao, Mingji,et al. Strength and hygroscopic behavior of biopolymer-treated silty sand under remodeling and dry-wet cycles[J]. CONSTRUCTION AND BUILDING MATERIALS,2023,408:11. |
| APA | He, Xingxing.,Xue, Jianfei.,Liao, Mingji.,Wan, Yong.,Liu, Xiaoli.,...&Xue, Qiang.(2023).Strength and hygroscopic behavior of biopolymer-treated silty sand under remodeling and dry-wet cycles.CONSTRUCTION AND BUILDING MATERIALS,408,11. |
| MLA | He, Xingxing,et al."Strength and hygroscopic behavior of biopolymer-treated silty sand under remodeling and dry-wet cycles".CONSTRUCTION AND BUILDING MATERIALS 408(2023):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。