Published on: April 2026
EXPERIMENTAL STUDY ON SUBGRADE SOIL STABILIZATION USING CONSTRUCTION-DEMOLITION WASTE AND BITUMEN
SELVAKAAVYA S
JEYANTHI J
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Abstract
This study evaluates the effectiveness of stabilizing subgrade soil using construction and demolition (C&D) waste and bitumen through experimental investigation. Laboratory tests were conducted on soil samples with varying proportions of C&D waste (10%, 15%, and 20%) and bitumen (0.5%, 1.0%, and 1.5%). The California Bearing Ratio (CBR) test was used as the primary indicator of strength improvement. The results demonstrate a significant increase in CBR values from 3.2% for untreated soil to a maximum of 9.4% for stabilized mixes. The improvement is attributed to enhanced particle interlocking from C&D waste and increased cohesion due to bitumen. The optimum mix was identified as 20% C&D waste with 1.0% bitumen, which provided the highest strength. The study confirms that the combined use of waste materials and bitumen offers a sustainable and efficient solution for subgrade stabilization in pavement construction
How to Cite this Paper
S, S. (2026). Experimental Study on Subgrade Soil Stabilization using Construction-Demolition Waste and Bitumen. International Journal of Creative and Open Research in Engineering and Management, <i>02</i>(04). https://doi.org/10.55041/ijcope.v2i4.407
S, SELVAKAAVYA. "Experimental Study on Subgrade Soil Stabilization using Construction-Demolition Waste and Bitumen." International Journal of Creative and Open Research in Engineering and Management, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijcope.v2i4.407.
S, SELVAKAAVYA. "Experimental Study on Subgrade Soil Stabilization using Construction-Demolition Waste and Bitumen." International Journal of Creative and Open Research in Engineering and Management 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijcope.v2i4.407.
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- •Peer Review Type: Double-Blind Peer Review
- •Published on: Apr 17 2026
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