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Utilization of waste copper slag as a substitute for sand in vertical sand drains and sand pile

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dc.contributor.author Nawagamuwa, UP
dc.contributor.author Senanayake, A
dc.contributor.author Rathnaweera, T
dc.date.accessioned 2015-05-28T05:55:27Z
dc.date.available 2015-05-28T05:55:27Z
dc.date.issued 2015-05-28
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/10855
dc.description.abstract Utilization of waste copper slag as a substitute for sand in vertical sand drains and sand piles Utilisation des scories de cuivre en tant que substitut pour le sable dans le sable drains verticaux et tas de sable ABSTRACT: Vertical sand drains are used as a method of expediting consolidation for ground improvement projects. Unfortunately, the installation of vertical sand drains have become less economically viable due to the high costs and limited availability of good quality sand. Particle size distribution analyses done on samples of waste copper slag obtained from the Colombo dockyard revealed that its gradation was similar to that of sand, which meant that waste copper slag could potentially be used as a substitute for sand, provided that it did not adversely affect the hydraulic conductivity of the resulting mixture. In this study, constant head permeability tests were done on "sand-copper slag" mixes of varying proportions and it was shown that up to 50% copper slag by weight could be added to sand without an appreciable loss in permeability. The performance of sand piles is dependent on strength and settlement characteristics of the sand. Hence, consolidation tests and direct shear tests were also carried out on the "sand-copper slag" mixes to explore how the mechanical properties of sand were affected by the copper slag. en_US
dc.language.iso en en_US
dc.source.uri http://www.researchgate.net/publication/269002025_Utilization_of_waste_copper_slag_as_a_substitute_for_sand_in_vertical_sand_drains_and_sand_piles en_US
dc.title Utilization of waste copper slag as a substitute for sand in vertical sand drains and sand pile en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Civil Engineering en_US
dc.identifier.year 2013 en_US
dc.identifier.conference International Conference on Soil Mechanics and Geotechnical Engineering [18th] 2013 en_US
dc.identifier.place Paris en_US
dc.identifier.email udeni@civil.mrt.ac.lk en_US


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