A review on use of pozzolanic materials and geopolymers in stabilizing mine tailings and dredged mud

Niroshan, Naguleswaran, Sivakugan, Siva, and Lovisa, Julie (2015) A review on use of pozzolanic materials and geopolymers in stabilizing mine tailings and dredged mud. In: Geotechnics for Sustainable Development, pp. 375-378. From: ICGE 2015: International Conference on Geotechnical Engineering, 10-11 August 2015, Colombo, Sri Lanka.

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Abstract

Mining and dredging are two major economic activities in Australia, and millions of tonnes of waste materials are produced every year by these activities. Mine tailings derived from crushed waste rock, and dredged mud removed from waterways during maintenance dredging, require effective means of disposal. While mine tailings are generally utilized as backfilling material to fill the underground voids created during mining operations, dredged mud is commonly used in land reclamation. In underground mining, accidents have resulted in severe economic damage and loss of lives, while in land reclamation, because of the very slow sedimentation and consolidation processes, future infrastructure development can be delayed. This paper summarizes an extensive literature review on the use of geopolymers and pozzolanic materials in stabilizing geomaterials. Generally, additives are used to enhance the engineering behaviour of soils and concrete. Cement is one of the most popular additives used to improve the properties of soils. Lately, there have been attempts to use pozzolanic materials such as fly ash and slag to partially replace cement. Excessive cement usage in soil may be reduced by using supplementary cementitious materials such as fly ash and slag, blended cement and geopolymers in some geotechnical applications, which should lead to environment sustainability and substantial cost savings.

Item ID: 44938
Item Type: Conference Item (Refereed Research Paper - E1)
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ISBN: 978-955-1411-01-5
Date Deposited: 13 Oct 2016 00:38
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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