INVESTIGATING THE EFFECTS OF THE REPLACEMENT OF SAND WITH QUARRY DUST ON THE PROPERTIES OF CONCRETE

Abstract
Sand collected from natural deposit is expensive due to unwanted cost of transportation from
sources. Large scale exploitation of natural sand creates environmental impact on society.
River sand is most commonly used fine aggregate in concrete but due to acute shortage in
many areas, availability, cost & environmental impact are the major concern. To overcome
from this crisis, partial/full replacement of sand with quarry dust can be an economic
alternative. In developing countries like Kenya, quarry dust has been rampantly used in
different construction purposes but replacement technology has emerged as an innovative
development to civil engineering material.
Design mix of class 25 grade concrete with replacement of 0%, 25%, 50%, 75%, and 100%
of quarry have been considered for laboratory analysis of Slump test, compaction factor
test, compressive strength, split tensile strength and flexural strength.

 

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