Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/app10072608 |
A Clay-Based Geopolymer in Loess Soil Stabilization | |
Hanegbi, Nadav; Katra, Itzhak | |
通讯作者 | Katra, I |
来源期刊 | APPLIED SCIENCES-BASEL
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EISSN | 2076-3417 |
出版年 | 2020 |
卷号 | 10期号:7 |
英文摘要 | Soil erosion has environmental and socioeconomic significances. Loess soils cover about 10% of the global land area. Most of these soils are subjected to increased land uses such as unpaved roads, which increase soil destruction and dust emission to the atmosphere. There is a significant interest in applications for dust control and soil stabilization. Application of geopolymers may significantly reduce environmental impacts. This study examines the use of a metakaolin-based geopolymer for dust control and soil stabilization in a semi-arid loess soil. The application of the geopolymer for dust control in comparison with common products (brine, bitumen, polyvinyl acetate-PVA) resulted in no dust emission. As a soil stabilizer, the geopolymer tested in this study provides remarkably good results in the tensile test. The most successful composition of the geopolymer, which is activation solution of sodium silicate and sodium hydroxide (NaOH) together with an addition of 30% metakaolin, obtained soil strength of 23,900 N after 28 days. The attempt to replace NaOH with lime (CaO) in the activation solution was far inferior to the original composition. There is a strong potential to develop natural soil stabilizers from a mineral base that even surpass their capabilities over existing synthetic stabilizers. |
英文关键词 | loess metakaolin dust control geopolymer soil erosion |
类型 | Article |
语种 | 英语 |
开放获取类型 | gold |
收录类别 | SCI-E |
WOS记录号 | WOS:000533356200407 |
WOS关键词 | DUST EMISSION ; LIME ; SIZE |
WOS类目 | Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied |
WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/324460 |
作者单位 | [Hanegbi, Nadav; Katra, Itzhak] Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-8410501 Beer Sheva, Israel |
推荐引用方式 GB/T 7714 | Hanegbi, Nadav,Katra, Itzhak. A Clay-Based Geopolymer in Loess Soil Stabilization[J]. Ben-Gurion University of the Negev,2020,10(7). |
APA | Hanegbi, Nadav,&Katra, Itzhak.(2020).A Clay-Based Geopolymer in Loess Soil Stabilization.APPLIED SCIENCES-BASEL,10(7). |
MLA | Hanegbi, Nadav,et al."A Clay-Based Geopolymer in Loess Soil Stabilization".APPLIED SCIENCES-BASEL 10.7(2020). |
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