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Plasticity Characteristics of China Clay-Bentonite–Sand Mix Proportions
In geotechnical engineering, a thorough understanding of the fundamental behaviour of soils plays a pivotal role in the engineering design of earthen structures. The engineering behaviour of coarse-grained soils is a physical phenomenon whereas for the fine-grained soil it is a physico-chemical phenomenon. The behaviour of fine-grained soil becomes more complex one due to the contradictory behaviour of principal clay minerals present i.e., Kaolinite, Montmorillonite in varying proportions in the soil matrix. Further, it is seldom observed that, owing to scare availability of coarse-grained soils at large quantity, forcing construction industry to use fine-grained soils having different clay mineralogy as an alternative material for a better construction. The plasticity characteristics of fine-grained soils predominantly control the engineering behaviour to greater extent. In the present experimental study, a series of mix proportions of commercially available China clay, Bentonite along with Sand were artificially prepared in the laboratory representing Kaolinite and Montmorillonite soils behaviour. The physical properties of the mix proportion were determined as per BIS specifications. The plasticity characteristics of mix proportion were correlated with plasticity characteristics of natural fine-grained soils. The new plasticity chart was developed which is akin to the IS plasticity chart. The activity of the mix proportions was also analysed and compared with that of natural fine-grained soils.
Plasticity Characteristics of China Clay-Bentonite–Sand Mix Proportions
In geotechnical engineering, a thorough understanding of the fundamental behaviour of soils plays a pivotal role in the engineering design of earthen structures. The engineering behaviour of coarse-grained soils is a physical phenomenon whereas for the fine-grained soil it is a physico-chemical phenomenon. The behaviour of fine-grained soil becomes more complex one due to the contradictory behaviour of principal clay minerals present i.e., Kaolinite, Montmorillonite in varying proportions in the soil matrix. Further, it is seldom observed that, owing to scare availability of coarse-grained soils at large quantity, forcing construction industry to use fine-grained soils having different clay mineralogy as an alternative material for a better construction. The plasticity characteristics of fine-grained soils predominantly control the engineering behaviour to greater extent. In the present experimental study, a series of mix proportions of commercially available China clay, Bentonite along with Sand were artificially prepared in the laboratory representing Kaolinite and Montmorillonite soils behaviour. The physical properties of the mix proportion were determined as per BIS specifications. The plasticity characteristics of mix proportion were correlated with plasticity characteristics of natural fine-grained soils. The new plasticity chart was developed which is akin to the IS plasticity chart. The activity of the mix proportions was also analysed and compared with that of natural fine-grained soils.
Plasticity Characteristics of China Clay-Bentonite–Sand Mix Proportions
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (editor) / Muthukkumaran, K. (editor) / Satyam, Neelima (editor) / Vaidya, Ravikiran (editor) / Jyothi, D. N. (author) / Prasanna, H. S. (author) / Pavithra, H. S. (author) / Yashaswini, K. A. (author)
2021-09-27
13 pages
Article/Chapter (Book)
Electronic Resource
English
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