干旱区生态环境知识资源中心(Arid): Feasibility Study on Biochar-Treated Expansive Soils

Arid

DOI	10.1007/s40891-021-00277-8
	Feasibility Study on Biochar-Treated Expansive Soils
	Villarreal, Jennifer; Wang, Fei
通讯作者	Wang, F (corresponding author), Tarleton State Univ, Sch Engn, 1333 W Washington St, Stephenville, TX 76401 USA.
来源期刊	INTERNATIONAL JOURNAL OF GEOSYNTHETICS AND GROUND ENGINEERING
ISSN	2199-9260
EISSN	2199-9279
出版年	2021
卷号	7 期号:2
英文摘要	Expansive soils distribute extensively in arid and semi-arid regions all over the world, which could cause tremendous damages to infrastructures due to the expansion of soils when water exists. Several types of technologies have been developed to mitigate expansive soils including mechanical methods and chemical methods. In this study, a type of sustainable material, biochar, was adopted to treat expansive soils. Biochar is created from organic biproducts from animal, agricultural, and forestry wastes that undergo pyrolysis, which is cost effective. Considering the strong water absorbability, biochar would limit the contact of water with soil particles to reduce the soil expansion deformation. Three different biochar contents by weight (i.e., 2%, 4%, and 6%) were used in this study and the effectiveness of the biochar treatment was verified by three types of tests including Atterberg limits, free swell index, and expansion index tests. Test results in this study demonstrate (1) the addition of biochar would not change the liquid limit but induce the increase of plastic limit; (2) biochar is effective to restrict the expansion deformation of expansive soils; and (3) there is an optimum biochar content which was 2% in this study.
英文关键词	Expansive soils Biochar Potential expansion Optimum biochar content
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000647631600003
WOS关键词	SWELL-SHRINK ; BEHAVIOR ; WATER ; IMPACT ; LIME
WOS类目	Engineering, Geological
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352857
作者单位	[Villarreal, Jennifer] Bleyl Engn, 100 Nugent St, Conroe, TX 77301 USA; [Villarreal, Jennifer; Wang, Fei] Tarleton State Univ, Sch Engn, 1333 W Washington St, Stephenville, TX 76401 USA
推荐引用方式 GB/T 7714	Villarreal, Jennifer,Wang, Fei. Feasibility Study on Biochar-Treated Expansive Soils[J],2021,7(2).
APA	Villarreal, Jennifer,&Wang, Fei.(2021).Feasibility Study on Biochar-Treated Expansive Soils.INTERNATIONAL JOURNAL OF GEOSYNTHETICS AND GROUND ENGINEERING,7(2).
MLA	Villarreal, Jennifer,et al."Feasibility Study on Biochar-Treated Expansive Soils".INTERNATIONAL JOURNAL OF GEOSYNTHETICS AND GROUND ENGINEERING 7.2(2021).