Shear Strength of Clay Reinforced With Square and Triangular Arrangement of Group Encapsulated Bottom Ash Columns

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Muzamir, Hasan and Nurul Aina, Husaini and Norhayani, Pangee @ Mohd Nor (2017) Shear Strength of Clay Reinforced With Square and Triangular Arrangement of Group Encapsulated Bottom Ash Columns. International Journal of GEOMATE, 12 (33). pp. 127-133. ISSN 2186-2982 (print); 2186-2990(online)

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Abstract

Soft clay is known to be a problematic soil that consists of low shear strength, low permeability and high compressibility where the existing soil on the given site is low with load bearing capacity, and by that ground improvement is required. Granular column methods are being used extensively as ground improvement technique for supporting a wide variety of structures and infrastructures. In practice, the bearing capacity on soft clay increased by a layer of compacted sand or gravel. Bottom ash as by product of coal burning that has similar properties to granular material can be applied as one of the stabilizing method to the existing soil. Hence, by using bottom ash as substitute, the cost of construction can be reduced and make great progress of a growing awareness of the sustainable engineering. This research discusses the results of the improvement in the shear strength of soft clay after being reinforced with a group of square and triangular encapsulated bottom ash columns. The physical and mechanical properties of the materials used such as kaolin and bottom ash were determined. The results show that kaolin can be classified ad clayey soil and bottom ash has similarities of characteristic with granular material. A total of 52 unconfined compression tests had been conducted on kaolin specimens to determine the shear strength. The diameter for specimen is 50mm and 100mm in height. The diameter of bottom ash columns are 10mm and 16 mm respectively and the height of the column are 60mm, 80 mm and 100mm. The group columns have been arranged in square and triangular pattern. It can be concluded that the shear strength parameters were improved based on the different diameter and the height of the column.

Item Type:Article
Uncontrolled Keywords:Soft clay, Group. Triangular. Encapsulated, Bottom Ash, Columns
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Centre for Earth Resources Research & Management
Faculty of Civil Engineering & Earth Resources
ID Code:16867
Deposited By: Noorul Farina Arifin
Deposited On:27 Feb 2017 14:27
Last Modified:18 Aug 2017 15:46

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