An Experimental Study on Fly Ash based Interlocking Hollow Concrete Blocks for Walls
Rishabh Joshi
Assistant Professor, Department of Civil Engineering, Shri Ramswaroop Memorial University , IN
Vishva Prakash
Assistant Professor, Department of Civil Engineering, Shri Ramswaroop Memorial University , IN
Keywords: interlocking, hollow concrete blocks, fly ash, partial replacement, pozzolanic.
Abstract
The interlocking hollow concrete blocks have many benefits over simple bricks since they have very high compressive strength, easy and feasible construction, reduces use of mortar and are also cheaper as compared to simple bricks. The fly ash obtained by combustion of coal was used as partial replacement for cement owing to its pozzolanic nature, which provides strength to cement. The huge quantity of fly ash being accumulated over the years is likely to pose a serious threat for its disposal and cause environmental problems. Its influence or effect on the compressive strength and properties of fresh concrete has been carried out in this project. Fly ash was used to replace 30%, 40% and 50% of cement by weight for the designed interlocking hollow concrete block. The results showed that strength of interlocking hollow concrete block decreases rapidly as we increase the percentage of fly ash
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