Title: Strength and bonding characteristics of mortar with recycled sand from construction and demolition wastes

Authors: Kumutha Rathinam; Prathiba Shanmugavel; Monica Varadharaj

Addresses: Department of Civil Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, Tamilnadu, India ' Department of Civil Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, Tamilnadu, India ' Department of Civil Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, Tamilnadu, India

Abstract: Administration of construction and demolition (C&D) wastes has been gaining attention and its implementation will be considered successful when there is a market appreciation for the products processed from such wastes. Government of India is taking initiatives and released guidelines and policies and green building rating schemes to advance the usage of recycled products. An insight of inferiority due to insufficient and reliable data on the performance of the reclaimed products was identified as drawbacks that hamper its usages. Through the present exploration, it was attempted to develop a cement-based mortar using fine aggregates derived from demolition wastes that could be possibly used for repairing the existing deteriorated concrete buildings. Three mortar mixes were evaluated using cement, M-sand and recycled sand for their flow properties together with their strength, absorption and bonding characteristics. The results obtained are presented and discussed.

Keywords: C&D wastes; mortar; fine aggregates; flow; strength; water absorption; bond strength.

DOI: 10.1504/IJSTRUCTE.2025.148379

International Journal of Structural Engineering, 2025 Vol.15 No.3, pp.219 - 231

Received: 09 Nov 2024
Accepted: 11 Jul 2025
Published online: 02 Sep 2025 *

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