A multi-attribute decision making approach of mix design based on experimental soil characterization
A multi-attribute decision making approach of mix design based on experimental soil characterization作者机构：Faculty of Science & Technology The ICFAI University Dehradun India College of Engineering Swansea University Swansea UK Department of Civil Engineering National Institute of Technical Teachers' Training and Research (NIT'ITR) Kolkata India
出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)
年 卷 期：2018年第12卷第3期
页 面：361-371页
核心收录：
学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 07[理学] 09[农学] 0903[农学-农业资源与环境] 070105[理学-运筹学与控制论] 0701[理学-数学] 090301[农学-土壤学]
主 题：silty sand bentonite soil soil mix design multi-attribute decision making
摘 要：The clay mineral composition is one of the major factors that governs the physical properties of silty sand subgrade. Therefore, a thorough knowledge of mineral composition is essential to predict the optimum engineering properties of the soil, which is generally characterized by different indices like maximum dry density （MDD）, California bearing ratio （CBR）, unconfined compressive strength （UCS） and free swelling index （FSI）. In this article, a novel multi- attribute decision making （MADM） based approach of mix design has been proposed for silty sand- artificial clay mix to improve the characteristic strength of a soil subgrade. Experimental investigation has been carried out in this study to illustrate the proposed approach of selecting appropriate proportion for the soil mix to optimize all the above mentioned engineering properties simultaneously. The results show that a mix proportion containing approximately 90% silty sand plus 10% bentonite soil is the optimal combination in context to the present study. The proposed methodology for optimal decision making to choose appropriate combination of bentonite and silty sand is general in nature and therefore, it can be extended to other problems of selecting mineral compositions.
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