干旱区生态环境知识资源中心(Arid): Influence of environmental stresses on the durability of slag-based alkali-activated cement crusts for wind erosion control

Arid

DOI	10.1016/j.scitotenv.2023.166576
	Influence of environmental stresses on the durability of slag-based alkali-activated cement crusts for wind erosion control
	Komaei, Alireza; Soroush, Abbas; Fattahi, Seyed Mohammad; Ghanbari, Hesam
通讯作者	Soroush, A
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	902
英文摘要	Wind erosion is a significant environmental challenge in arid and semi-arid regions, and artificial crust creation on the soil surface has emerged as an effective approach to mitigate this phenomenon. Various methods of crust formation have been proposed to combat wind erosion in these regions. However, a comprehensive study assessing the durability of these crusts against environmental stresses has been lacking. Hence, the primary objective of the present study is to address this critical issue by evaluating the erodibility and surface strength of alkali-activated slag crusts in response to various environmental stressors. These stressors encompass ultraviolet radiation, heating and cooling cycles, wetting and drying cycles, and freezing and thawing cycles. Through wind tunnel tests, erosion rates were measured under different wind velocities and saltation bombardment conditions, while penetrometer tests were conducted to analyze surface strength. The results demonstrate that alkaliactivated cementation produced robust crusts, exhibiting an impressive reduction of over 99.9 % in erosion rates compared to untreated samples. However, the introduction of environmental stresses led to a fivefold increase in erosion rates. Freeze and thaw cycles had the most detrimental effect on the alkali-activated cement crusts while heating and cooling cycles had a relatively minor impact. The wetting and drying cycles and UV radiation ranked second and third, respectively, in terms of their destructive effects on crust erodibility. Despite the observed effects, the crusts maintained their efficiency even when subjected to severe environmental stresses. Notably, the erosion rate of the treated crusts after enduring the most severe studied stress, that is five freeze and thaw cycles, was over 250 times lower than that of the untreated samples.
英文关键词	Wind erosion Crust formation Environmental stresses Durability Alkali-activated cement
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001071480000001
WOS关键词	SOIL ; EFFLORESCENCE ; MECHANISMS ; DESERT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398552
推荐引用方式 GB/T 7714	Komaei, Alireza,Soroush, Abbas,Fattahi, Seyed Mohammad,et al. Influence of environmental stresses on the durability of slag-based alkali-activated cement crusts for wind erosion control[J],2023,902.
APA	Komaei, Alireza,Soroush, Abbas,Fattahi, Seyed Mohammad,&Ghanbari, Hesam.(2023).Influence of environmental stresses on the durability of slag-based alkali-activated cement crusts for wind erosion control.SCIENCE OF THE TOTAL ENVIRONMENT,902.
MLA	Komaei, Alireza,et al."Influence of environmental stresses on the durability of slag-based alkali-activated cement crusts for wind erosion control".SCIENCE OF THE TOTAL ENVIRONMENT 902(2023).