Study on performance and application of O-QGS soil curing agent for waste clay with low liquid limit
文献类型：期刊论文
| 作者 | Zhang, Qian-qing2,5; Lu, Yuan2,5; Li, Zhen-bao2,5; Cui, Wei3; Lei, Mei-qing1; Wang, Shu-jian4 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2024-07-19 |
| 卷号 | 436页码:14 |
| 关键词 | Industrial solid wastes Waste clay with low liquid limit Response surface methodology Prefabricated solidified soil pile Soft foundation treatment |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2024.136986 |
| 英文摘要 | To reuse industrial solid wastes and waste clay with low liquid limit, a kind of soil solidification material by using cement, quicklime and industrial solid wastes such as ground granulated blast -furnace slag (GGBS), silica fume (SF) was developed in this study. Response surface methodology (RSM) based on central composite design (CCD) was used to design the experiment and optimize the mix ratio of GGBS, quicklime and SF under certain cement content conditions (i.e., the content ratio of cement, GGBS, quicklime, and SF was 5: 9.14: 1.7: 2.13). A soil solidification agent named O-QGS was developed to solidify waste clay with low liquid limit. To clarify the solidification mechanism of solidified soil, a series of laboratory experiments such as UCS test, water stability test, and scanning electron microscopy (SEM) test were carried out to capture the mechanical properties, water stability, and microstructure of O-QGS solidified soil and cement solidified soil. For practical purpose of O-QGS, a method for forming prefabricated pile by using O-QGS solidified soil was developed, and a method for strengthening soft foundations with prefabricated O-QGS solidified soil pile was proposed. Based on the results of load tests, the bearing capacity of prefabricated O-QGS solidified soil pile and cement high-pressure rotary jet grouting pile, as well as the composite foundations bearing capacity of prefabricated O-QGS solidified soil pile and cement high-pressure rotary jet grouting pile used for strengthening soft foundations, were analyzed. The feasibility of prefabricated O-QGS solidified soil pile used for strengthening soft foundations was verified in practice. The present study shows that the UCS of O-QGS solidified soil is 7.25 MPa at 28 days, and the water stability coefficient of O-QGS solidified soil is larger than 0.8. Compared with the method of cement highpressure rotary jet grouting pile to reinforce soft foundation, the bearing capacity of prefabricated O-QGS solidified soil pile to reinforce soft foundation is higher, and the cost can be saved by 22.4 %. |
| 资助项目 | Young Experts of Taishan Scholar Project of Shandong Province[tsqn202103163] ; Program of Outstanding Young and Middle-aged Scholars of Shandong University ; National Natural Science Foundation of China[52278358] ; Program of Qilu Young Scholars of Shandong University |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001257652800001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41812]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Qian-qing |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China 2.Shandong Univ, Res Inst New Mat & Intelligent Equipment, Dezhou 251100, Peoples R China 3.Shandong Univ, Sch Civil Engn, Jinan 250061, Peoples R China 4.Shandong Hispeed Grp Co Ltd, Jinan 250098, Peoples R China 5.Shandong Univ, Geotech & Struct Engn Res Ctr, Jinan 250061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qian-qing,Lu, Yuan,Li, Zhen-bao,et al. Study on performance and application of O-QGS soil curing agent for waste clay with low liquid limit[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,436:14. |
| APA | Zhang, Qian-qing,Lu, Yuan,Li, Zhen-bao,Cui, Wei,Lei, Mei-qing,&Wang, Shu-jian.(2024).Study on performance and application of O-QGS soil curing agent for waste clay with low liquid limit.CONSTRUCTION AND BUILDING MATERIALS,436,14. |
| MLA | Zhang, Qian-qing,et al."Study on performance and application of O-QGS soil curing agent for waste clay with low liquid limit".CONSTRUCTION AND BUILDING MATERIALS 436(2024):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。