Sustainable and Cost-Effective Development of Pervious Paver Block made with RHA (Rice Husk Ash) and RAP (Recycled Asphalt Pavement)

Abstract

Abstract: The study's goal is to create cost-effective and eco-friendly pervious paver blocks by reusing asphalt pavement at 0%, 50%, and 100% weight ratios. Building permeable paver blocks using RHA (Rice Husk Ash), an industrial waste product with a cementous ratio of 10% to 20% by weight, is a step toward a more eco-friendly and cost-effective future. Both recycled asphalt pavement (RAP) aggregates and newly quarried "fresh aggregates" (FA) were employed in this investigation. Bituminous concrete (BC) pavement that was 2 years old and Stored in dumping yard besides the Rahul ware house in Gwalior, Madhya Pradesh on Srinagar – Kanyakumari Highway yielded RAP with a nominal maximum aggregate size of 13 mm. The production of PCPB has been standardized. This technique is known as the "cement paste encapsulating aggregate blending method." “After adding all of the aggregate and 20–25% of the total calculated water content, the concrete mixer was operated for 15-20 seconds”. The RP overseas in Lohgarh (M.P.) provided the rice husk ash that was used in the project. Rice husk ash (RHA) has a high specific gravity of 2.10 and a low bulk density of 0.781 g/cc, making it highly reactive and pozzolanic. RHA is recommended for use in both plain and reinforced concrete by the IS 456-2000 Indian Standard code of practice. The results of the investigation demonstrated that G2 graded mixes had higher porosity than G1 graded mixes. The results showed that CL values were minimal at w-c ratios of 0.35. The cement paste at this water-to-cement ratio is strong enough to bind the aggregate particles together, which explains why this occurs. In comparison to the conventional approach, the optimal replacement level of RHA results in block costs that are reduced by 7.5% for 0 RAP and 10% RHA, 15% for 0 RAP and 20% RHA, 20% for 50% Rap and 10% RHA, 27% for 50% RAP and 20% RHA, 33.2% for 100% RAP and 10% RHA, and 40.62% for 100% RAP and 20% RHA. The conclusion is that RHA-made paver blocks are reliable and cost-effective. The conclusion is that paver blocks made by RHA are durable and affordable