dc.contributor.author |
Udawatte, NBB |
|
dc.contributor.author |
Siriwardene, HP |
|
dc.contributor.author |
Samaratunga, SPND |
|
dc.contributor.author |
Udayanga, WAC |
|
dc.contributor.author |
Rupasinghe, SN |
|
dc.contributor.author |
Theeparuban, B |
|
dc.contributor.author |
Fernando, WLW |
|
dc.contributor.editor |
Karunaratne, S |
|
dc.date.accessioned |
2022-06-23T07:14:41Z |
|
dc.date.available |
2022-06-23T07:14:41Z |
|
dc.date.issued |
2008-05 |
|
dc.identifier.citation |
Udawatte, N.B.B., Siriwardene, H.P., Samaratunga, S.P.N.D., Udayanga, W.A.C., Rupasinghe, S.N., Theeparuban, B., & Fernando, W.L.W. (2008). Design and fabrication of a spiral classifier for off-shore sand washing. In S. Karunaratne (Ed.), Proceedings of the 3rd Annual Conference on Mining for Sustainable Development – A Multidisciplinary Approach (pp. 21-24). Department of Earth Resources Engineering, University of Moratuwa. |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/18358 |
|
dc.description.abstract |
The rapid growth of construction industry has created a significant
demand for sand. Consequently, it has increased the exploitation rate of river sand
giving rise to adverse environmental impacts. Therefore, the tendency now is to find
alternatives for river sand avoiding massive environmental damages. Among the
potential alternatives, offshore sand could be the best alternative, because of particle
size distribution and availability. However, the demand on offshore sand is low, due to
its soluble Cl- content which could influence badly on the structural properties of
concrete. As a solution, sea sand could be stored in open air until the Cl- content is
decreased to acceptable limits (<0.075% by weight) under the influence of rain water.
However, considering the increasing demand and changing weather patterns, the above
method appears to be inappropriate to meet the demand. In this research, a spiral
classifier was designed and fabricated in order to wash offshore sand from salts and
other suspended materials. The separation is done on sea sand by optimizing critical
parameters of the spiral classifier such as feed rate, rotational speed of spiral, inclination
angle of the spiral and weir height. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Earth Resources Engineering |
en_US |
dc.subject |
Acceptable limit |
en_US |
dc.subject |
Cl- content |
en_US |
dc.subject |
Demand for sand |
en_US |
dc.subject |
Offshore sand |
en_US |
dc.title |
Design and fabrication of a spiral classifier for off-shore sand washing |
en_US |
dc.type |
Conference-Full-text |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Earth Resources Engineeirng |
en_US |
dc.identifier.year |
2008 |
en_US |
dc.identifier.conference |
3rd Annual Conference on Mining for Sustainable Development - A Multidisciplinary Approach |
en_US |
dc.identifier.place |
Katubedda |
en_US |
dc.identifier.pgnos |
pp. 21-24 |
en_US |
dc.identifier.proceeding |
Proceedings of the 3rd Annual Conference on Mining for Sustainable Development - A Multidisciplinary Approach |
en_US |
dc.identifier.email |
wlwf2002@yahoo.com |
en_US |