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Feasibility of Construction Demolition Waste for Unexplored Geotechnical and Geo-environmental Applications- a Review by Bordoloi S; Afolayan O. D; Ng C.W.W is a Engineering article available to read on EtoBox.

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The use of recycled construction demolition (C&D) waste in geo-environmental infrastructure as a carbon neutralization strategy has gained traction recently. This review aims to provide a state-of-the-art on the unsaturated hydro-mechanical properties of C&D waste and its unexplored application in possible geoenvironmental infrastructures. More than 100 studies comprising theoretical and numerical modelling, laboratory investigation, and field tests on the use of C&D waste have been discussed in this review systematically. The effects of particle size distribution, water absorption capacity, abrasion index, flakiness index, pH, reactivity index and microstructural cracks of C&D waste on its unsaturated hydro-mechanical properties were evaluated. Due to its porous nature and the presence of adhesive ettringite and needle-like minerals on the C&D waste's surface, its water absorption capacity is usually 2.3-4.6 times higher than natural aggregates. The applications of soil-recycled aggregates composite in geo-environmental infrastructures, such as slopes, landfill cover system, subgrade in pavements, geosynthetic reinforced backfill soil, green roof, are discussed in the context of u

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Author

Bordoloi S; Afolayan O. D; Ng C.W.W

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)