Study of Concrete Involving Use of Quarry dust as Partial Replacement of Fine Aggregates

Abstract

Concrete is globally used material. It is a site-made material unlike other materials of construction and as such can vary to a very great extent in its quality, properties and performance owing to the use of natural materials except cement and sand. The production of natural sand is diminishing and also their use has lead to severe environmental problems. Thus, there is a need to replace these materials by some cheap, environmental friendly by-products.. , The environmental and economic concern is the biggest challenge concrete industry is facing. In this paper, the issues of environmental and economic concern are addressed by the use of quarry dust as partial replacement of fine aggregates in concrete. Fine aggregates were replaced by quarry dust as 0%, 10%, 20%, 30% and 40% by weight for M-25 mix. The concrete specimens were tested for compressive strength, strength, durability (water absorption) and density at 28 days of age and the results obtained were compared with those of normal concrete. The results showed that by increasing the quarry dust content workability increases and compressive strength increased.