• Kalutla Kalyan Kumar
• Sree Krishna Somu
• Jayarami Reddy B

Flooding has become a frequent issue, particularly due to urbanization and inefficient water drainage systems. Impervious concrete, commonly used for pavements and courtyards, prevents rainwater from seeping into the ground, exacerbating drainage problems. Cities like Mumbai experience severe flooding even with moderate rainfall because of these challenges. Additionally, impervious concrete surfaces trap and emit heat, contributing to rising global temperatures. In contrast, pervious concrete, which excludes or minimizes fine aggregates, is designed to be porous, allowing water to percolate into the ground. This helps in recharging groundwater and mitigating the negative effects of urban flooding. By increasing the void space within the pervious concrete, rainwater can freely pass through, promoting better water management. Pervious concrete is composed of cement, coarse aggregates, water, and occasionally, small amounts of fine aggregates or other additives. Its porous structure enables better water infiltration compared to traditional impervious materials, which can contribute to environmental issues and health risks. One effective solution is the use of pervious concrete in pavement blocks made from locally available materials. In this research, the mix design for M25 grade concrete has been selected, and specimens are cast with different variations in composition. The specific cases considered include 0% fines, 3% fines combined with 2.5% coconut shell, and 3% fines with 5% fly ash. The percentage of fines is determined as a portion of the coarse aggregate volume and is used as a partial replacement for coarse aggregates. Similarly, the coconut shell is used as a partial replacement for coarse aggregates, and fly ash is employed as a partial replacement for cement by volume. Different shapes of specimens like cubes, cylinders, beams are carried out and having the sizes of 150×150×150 mm,150×300mm ,500×100×100 mm respectively. All specimens will be cured for a period of 7days, 14 days and 28 days before testing. Following the curing periods, compressive strength tests, flexural strength tests, and split tensile strength tests will be conducted. Based on the results, the strength characteristics of the specimens across different cases will be compared, providing a comprehensive overview of their performance.

No fines, Fly ash, Coconut shells, Compressive strength, Flexural strength

"Experimental investigation of strength properties of concrete by introducing no fines, fly ash and coconut shells", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 10, page no.c28-c38, October-2024, Available :http://www.jetir.org/papers/JETIR2410205.pdf

"Experimental investigation of strength properties of concrete by introducing no fines, fly ash and coconut shells", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 10, page no. ppc28-c38, October-2024, Available at : http://www.jetir.org/papers/JETIR2410205.pdf