Experimental investigation on the enhancement of concrete strength by incorporation of polypropylene fibres along with partial replacement of cement by a combination of micro-silica and dolomite powder in equal proportion.

Registration ID: IJNRD_204645

Published ID: IJNRD2308430

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Vishal Laxman Hajare, Manorama Kariappa

Polypropylene fibre, dolomite powder, micro silica, optimum ratio

Cement is one of the important constituents of concrete, cement manufacturing produces a large amount of heat into the atmosphere and is one of the important causes of global warming to some extent. As we know cement consumption in India ranks 2nd in the world after China with consumption of 370 million tonnes in the year 2022-23 [6]. Reducing the amount of cement even to a small extent in the concrete mix will have a significant impact on the environment in a good manner reducing atmospheric heat. So, in this experiment, we partially replaced cement about 10 and 15% with a blend of dolomite powder and micro-silica in different ratios to get maximum strength. To reduce shrinkage, thermal stresses and increase strength and imperviousness of concrete we are using polypropylene fibre along with dolomite and micro-silica in concrete and finding out the optimum quantity of polypropylene giving maximum strength. So First of all consider partial replacement of cement to 10% and 15% taking the ratio of dolomite powder and micro silica as 1:1 and the quantity of polypropylene fibre in 0.5%, 1% and 1.5% of wet concrete. Six mix combinations were formed for M20 concrete. From their test results, the optimum polypropylene content is fixed which is found to be 1% in our case. A mix containing 1% polypropylene fibre with 10% cement replacement by a combination of dolomite powder and micro silica in the ratio of 1:1 gives maximum strength in all 6 mixes studied in this research work. Further in the future total of 9 mix combinations for 10% and 15% cement replacement will be formed with different ratios of dolomite powder to micro-silica with a fixed percentage of polypropylene as 1%. Among 9 more mix combinations, the one giving maximum strength is found and the optimum ratio of dolomite powder: micro silica is decided by comparing test results is the future scope of this experimental study.

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Vishal Laxman Hajare & Manorama Kariappa (August-2023). Experimental investigation on the enhancement of concrete strength by incorporation of polypropylene fibres along with partial replacement of cement by a combination of micro-silica and dolomite powder in equal proportion.. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 8(8), e313-e318. https://ijnrd.org/papers/IJNRD2308430.pdf

Volume 8 Issue 8, August-2023

Pages : e313-e318

Paper Reg. ID: IJNRD_204645

Published Paper Id: IJNRD2308430

Research Area: Civil Engineering 

Author Type: Indian Author

Country: nagar, Ahmednagar, Maharashtra, India

Published Paper PDF: https://ijnrd.org/papers/IJNRD2308430.pdf

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