This research work was experimentally carried out to investigate comparing the effects of Rice Hu... more This research work was experimentally carried out to investigate comparing the effects of Rice Husk Ash (RHA) and Quarry Dust on the compressive strength of concrete using local aggregates as super pozzolans at optimum replacement percentage which will help to reduce the cost of housing. With this research work, the problem of waste management of agro-wastes like RHA and Quarry Dust a waste left from quarries will be solved. The research which had controlled samples, 5%, 10%,15 % and 20% replacement respectively at 7, 14, 21, 28 and 56 days curing. The compressive strength is determined for the concrete by testing the sample cube of 150mm x 150mm x 150mm. The properties such as the specific gravity, slump test, moisture content etc. are determined for the sample. RHA and Quarry Dust concrete were found to be very workable with a slump value of 10-30mm. The incorporation of RHA and Quarry Dust in concrete using locally sourced aggregates resulted in increased water demand and enhanced strength to a certain level. The compressive strength values at 14-28 days peaked at 10% replacement level and decreases form 56 days at same percentage replacement. The Quarry Dust and Rice Husk Ash displays better quality because of good holding attributes. Finally, we discovered that Quarry Dust had better durability and strength compared to Rice Husk Ash while both are eco-friendly pozzolans.
This research work was experimentally carried out to investigate comparing the effects of Rice Hu... more This research work was experimentally carried out to investigate comparing the effects of Rice Husk Ash (RHA) and Quarry Dust on the compressive strength of concrete using local aggregates as super pozzolans at optimum replacement percentage which will help to reduce the cost of housing. With this research work, the problem of waste management of agro-wastes like RHA and Quarry Dust a waste left from quarries will be solved. The research which had controlled samples, 5%, 10%,15 % and 20% replacement respectively at 7, 14, 21, 28 and 56 days curing. The compressive strength is determined for the concrete by testing the sample cube of 150mm x 150mm x 150mm. The properties such as the specific gravity, slump test, moisture content etc. are determined for the sample. RHA and Quarry Dust concrete were found to be very workable with a slump value of 10-30mm. The incorporation of RHA and Quarry Dust in concrete using locally sourced aggregates resulted in increased water demand and enhanced strength to a certain level. The compressive strength values at 14-28 days peaked at 10% replacement level and decreases form 56 days at same percentage replacement. The Quarry Dust and Rice Husk Ash displays better quality because of good holding attributes. Finally, we discovered that Quarry Dust had better durability and strength compared to Rice Husk Ash while both are eco-friendly pozzolans.
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