·observed that by 25% of partial replacement of cement with quarry dust improved hardened concrete properties Keywords Quarry dust cement water aggregates 1 INTRODUCTION Quarry dust is a waste product obtained from quarrying It can be used as an effective filler material instead of cement In the present study the
·cement test conducted at 50% replacement showed that the water cement ratio increased to at which slump failed In one more investigation where natural sand is replaced 100% with quarry dust to study quarry dust concrete is 10 12% more along with durability under sulphate and acid action It also shown that the water
·Therefore water to cement ratio was increased for concrete with quarry dust to sustain similar workability of conventional concrete [31 32] On the other hand the presence of quarry dust improved the mechanical characteristics
·Therefore this research was to observe the possibility of quarry dust to be included in a concrete mix The quarry dust has been used as a partial replacement for cement proportion at different
·Cost analysis indicates that the percentage of cost reduction on optimized cement quarry dust ratio concrete mixes stands between 27% to 31% than conventional concrete mixes It can be concluded
·This research was conducted to examine the potential of basaltic crusher dust as a partial replacement for Portland Pozzolana cement in hollow concrete block HCB production Quarry dust is one of the waste materials abundantly available and pozzolanic material in the quarry industry In doing so physical tests of cement pastes and hollow
·cement ratio w/c which gives the slump of 60mm was selected from graph The various w/c for different proportions of sand and quarry dust was presented in Table 2 Table 2 Workability of concrete slump 60mm Fine aggregate Sand Quarry dust water cement ratio w/c M20 M25 100 0 90 10 80 20
·cement ratio was found out by conducting slump test for a constant slump of 60 mm Tests were conducted in limited ratios of sand quarry dust choosing one ratio each above and below the one giving maximum strength say 60 40 50 50 and 40 60 At the age of 28 days the compressive strength tensile strength and flexural strength were determined
·For mixes M20 and M25 quarry dust concrete with water cement ratio showed same slump as that of control concrete with w/c [28] In view of the above studies following observations are
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