• Mohammad Fayiq Iqbal
• Shivani Bhardwaj
• Sourabh Lalotra

- The cost of constructing a building is increasing day by day as cost of building materials are increasing, the use of any alternative material that has tendency to partially replace the building material may reduce the cost of the construction to certain level. In this research we have selected two materials Chalk Powder and Coconut Fiber Ash for partially replacement with cement. Both the materials are easily available, renewable and also cheap. The grade of concrete on which the investigation will be performed will be M40 grade with water cement ratio kept at 0.40. The main aim of this research is to check if the two above materials can be used instead of cement up to certain percentage. In this project, the workability, compressive strength as well as flexural strength of conventional concrete (CC), concrete made of Chalk Powder (CP), concrete made of Coconut Fiber Ash (CFA), and concrete made from mixture of both materials has been studied. The compressive and the flexural strength was calculated at 3 days, 7 days and 28 days of normal curing. The percentage replacement for the cement used is 5%. 10% and 15% by weight of cement. For calculating the compressive strength, cubes of size 150 x 150 x 150 mm were casted and were tested using Compression Testing Machine. In this project the distribution of cubes casted are – 12 are CC, 12 are CP (5%), 12 are CP (10%). 12 are CP (15%), 12 are CFA (5%), 12 are CFA (10%), 12 are CFA (15%), 12 are CP + CFA (5%), 12 are CP + CFA (10%) and 12 for CP + CFA (15%). For calculating the flexural strength, beam of size 500 x 100 x 100 mm were casted and were tested under Flexural Testing Machine under two point loading effect. The distribution of beams casted are – 9 are CC, 9 are CP (5%), 9 are CP (10%), 9 are CP (15%), 9 are CFA (5%), 9 are CFA (10%), 9 are CFA (15%), 9 are CP + CFA (5%), 9 are CP + CFA (10%) and 9 are of CP + CFA (15%).

concrete, CP – chalk powder, CFA – coconut fiber ash,, compressive strength, flexural strength

"Experimental Studies on Partial Replacement of Cement with Chalk Powder and Coconut Fiber Ash", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.163-171, May-2019, Available :http://www.jetir.org/papers/JETIR1905C26.pdf

"Experimental Studies on Partial Replacement of Cement with Chalk Powder and Coconut Fiber Ash", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp163-171, May-2019, Available at : http://www.jetir.org/papers/JETIR1905C26.pdf