Abstract :

The Rapid Growth Of Urbanization And Infrastructure Development Has Led To The Massive Consumption Of Natural Aggregates For Road Construction, Especially In Bituminous Concrete Mixes. At The Same Time, Large Quantities Of Construction And Demolition (C&D) Waste Are Being Generated Worldwide, Creating Serious Environmental And Disposal Challenges. Among C&D Wastes, Concrete Rubble Forms A Major Portion, Which If Properly Processed, Can Serve As Recycled Aggregates For Flexible Pavement Construction. The Use Of Recycled Aggregates In Bituminous Concrete Mixes Provides A Dual Advantage—conservation Of Natural Resources And Reduction Of Waste Disposal Issues. This Study Aims To Prepare And Evaluate Bituminous Concrete Mixes Using Recycled Concrete Aggregates (RCA) As A Partial Or Full Replacement Of Natural Aggregates. Laboratory Investigations Include Marshall Stability Test, Flow Value, Density, Voids In Mineral Aggregates (VMA), Voids Filled With Bitumen (VFB), And Indirect Tensile Strength (ITS). The Results Are Compared With Conventional Mixes To Assess Performance. Preliminary Findings Suggest That Mixes Incorporating RCA Exhibit Satisfactory Stability And Durability, With Optimum Performance Achieved At Partial Replacement Levels. The Study Concludes That RCA Can Be Effectively Used In Bituminous Mixes For Sustainable Road Construction, Reducing Costs, Conserving Natural Resources, And Promoting Ecofriendly Practices In Line With Circular Economy Principles.

Published:

23-8-2025

Issue:

Vol. 25 No. 8 (2025)

Page Nos:

355-363

Section:

Articles

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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