Effects of The Total and Partial Replacement of Sharp Sand with Quarry Dust on Concrete
Journal Title: JOURNAL OF ADVANCED RESEARCH IN CONSTRUCTION AND URBAN ARCHITECTURE - Year 2018, Vol 3, Issue 4
Abstract
Sharp sand is now unsustainable due to large-scale depletion and this creates environmental problems. As environmental concerns and other constraints make the availability and use of sharp sand less attractive, a substitute or replacement product for concrete industry needs to be found. Sharp sand is most commonly used as fine aggregates in the production of concrete and an adequate substitute is being investigated to reduce its usage worldwide. In such a situation, quarry dust can be an economic alternative to sharp sand. Quarry dust can be defined as residue, tailing or other non-voluble waste material after the extraction and processing of rocks to form fine particles less than 4.75mm. Usually, quarry dust is used in large scale in the highways as a surface finishing material and also used for manufacturing of hollow blocks and lightweight concrete prefabricated elements. Use of quarry dust as a fine aggregate in concrete draws serious attention of researchers and investigators. This project presents the feasibility of the usage of quarry dust as 100% and 50% substitutes for sharp sand in concrete. Tests were conducted on cubes to study the properties and strength of concrete made of various samples of quarry dust and sharp sand from different locations and also their 50-50% combinations. Previous research carried out on this shows positive results and hence quarry dust has very recently gained good attention to be used as an effective filler material instead of sharp sand. This project will investigate the effect of the total and partial replacement of sharp sand with quarry dust on concrete
Authors and Affiliations
Ezeagu CA
Keywords
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