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Ground Improvement Technique By Psuedo-Binghamian Grout for Fly Ash and Black Cotton Soil
Various processes of ground improvement are available to increase the strength, reduce compressibility and permeability or improve groundwater condition. The techniques involved for the attainment of the required improvement properties are referred to as a geotechnical process. While considering any foundation problem, a civil engineer will probably examine the use of grouting as one of the possible solutions. The selection of grout material and its technique is of utmost importance for the success of grout. Cement, cement and admixture, chemicals, fly ash, pozzolans, etc., are the commonly used grouting materials. The process of injecting a suitable fluid under pressure was the invention of a French engineer Charles Berginy, who in 1802 prevented scouring of a sluice gate by injecting clay-based grout. The present project intends to design a grout using sodium silicate as the base and calcium chloride as a hardener. Fly ash and black cotton soil are used as a filler material to enhance the property of the designed grout. An experimental study is carried out to study the physical properties and engineering properties of raw and grouted sand for the designed grout. The experimental study conducted gave the following broad inferences that gel time reduces as hardener concentration increases, while specific gravity, time of afflux, needle penetration strength, and syneresis increases. It has been observed that UCS and triaxial strength of raw and grouted (dry and saturated sand) increases as the time of curing increases. Cohesion and angle of internal also increases as curing time increases.
Ground Improvement Technique By Psuedo-Binghamian Grout for Fly Ash and Black Cotton Soil
Various processes of ground improvement are available to increase the strength, reduce compressibility and permeability or improve groundwater condition. The techniques involved for the attainment of the required improvement properties are referred to as a geotechnical process. While considering any foundation problem, a civil engineer will probably examine the use of grouting as one of the possible solutions. The selection of grout material and its technique is of utmost importance for the success of grout. Cement, cement and admixture, chemicals, fly ash, pozzolans, etc., are the commonly used grouting materials. The process of injecting a suitable fluid under pressure was the invention of a French engineer Charles Berginy, who in 1802 prevented scouring of a sluice gate by injecting clay-based grout. The present project intends to design a grout using sodium silicate as the base and calcium chloride as a hardener. Fly ash and black cotton soil are used as a filler material to enhance the property of the designed grout. An experimental study is carried out to study the physical properties and engineering properties of raw and grouted sand for the designed grout. The experimental study conducted gave the following broad inferences that gel time reduces as hardener concentration increases, while specific gravity, time of afflux, needle penetration strength, and syneresis increases. It has been observed that UCS and triaxial strength of raw and grouted (dry and saturated sand) increases as the time of curing increases. Cohesion and angle of internal also increases as curing time increases.
Ground Improvement Technique By Psuedo-Binghamian Grout for Fly Ash and Black Cotton Soil
Lecture Notes in Civil Engineering
Sitharam, T. G. (editor) / Parthasarathy, C. R. (editor) / Kolathayar, Sreevalsa (editor) / Hasilkar, Nirali B. (author) / Thakur, Lalit S. (author) / Panchal, Atul (author)
2021-03-25
14 pages
Article/Chapter (Book)
Electronic Resource
English
Ground Improvement Technique: Black Cotton Soil by using "Respecta" Soil Stabiliser "HSR 230"
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