Experimental Study on Solidified Lake Sediment Based on Industrial Solid Waste and Construction Waste: Stabilization and Mechanism
文献类型：期刊论文
| 作者 | Liu, Mengyi1,3; Dong, Yiqie1; Zang, Meng1; Cai, Guanghua2; Lu, Haijun1,3 |
| 刊名 | BUILDINGS
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 13期号:8页码:14 |
| 关键词 | lake sediment solidification/stabilization industrial solid waste water permeability microstructure |
| DOI | 10.3390/buildings13082053 |
| 英文摘要 | Occupation of land and damage to the surrounding ecosystem may occur due to the accumulation of dredged lake sediments. In order to solve the large amount of dredged lake sediments, industrial wastes (slag, desulfurization gypsum) and urban construction waste were used to solidify the lake substrate, obtained a new construction material. Water content, volumetric shrinkage, unconfined compressive strength and flexural strength parameters and hydraulic conductivity coefficients of the solidified sediment were obtained from water content determination tests, volumetric shrinkage tests, unconfined compressive strength tests, flexural tests and permeation tests. Mineralogical composition and microstructural characterization of the solidified sediment using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were obtained. The solidification mechanism of lake sediment under the coupling of industrial waste and urban construction waste was revealed. The water content of the specimens decreased rapidly, and shrinkage deformation occurred in curing for 7 d. The volumetric shrinkage of 28 d was eventually maintained at 1.27-5.19%. The trend of specimen strength changed with the extension of time in the overall increase state, the compressive strength and flexural strength within 28 d were 3.15-10.96 MPa and 0.64-2.69 MPa, respectively. The solidified sediment material showed excellent anti-seepage performance, the hydraulic conductivity reached stability at 1.22 x 10(-8)-55.4 x 10(-8) cm/s. Gismondine, gypsum, calcite, scawtite and fibrous C-S-H phases were generated in the solidified material. |
| 资助项目 | National Natural Science Foundation of China[U20A20320] ; Natural Science Foundation of Hubei Province of China[2022CFA011] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001057610400001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39293]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zang, Meng; Lu, Haijun |
| 作者单位 | 1.Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan 430023, Peoples R China 2.Nanjing Forestry Univ, Coll Civil Engn, Nanjing 210037, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Mengyi,Dong, Yiqie,Zang, Meng,et al. Experimental Study on Solidified Lake Sediment Based on Industrial Solid Waste and Construction Waste: Stabilization and Mechanism[J]. BUILDINGS,2023,13(8):14. |
| APA | Liu, Mengyi,Dong, Yiqie,Zang, Meng,Cai, Guanghua,&Lu, Haijun.(2023).Experimental Study on Solidified Lake Sediment Based on Industrial Solid Waste and Construction Waste: Stabilization and Mechanism.BUILDINGS,13(8),14. |
| MLA | Liu, Mengyi,et al."Experimental Study on Solidified Lake Sediment Based on Industrial Solid Waste and Construction Waste: Stabilization and Mechanism".BUILDINGS 13.8(2023):14. |
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。