November 13, 2025SustainabilityOpen Access

Utilization of Construction and Demolition Waste in Concrete as Cement and Aggregate Substitute: A Comprehensive Study on Microstructure, Performance, and Sustainability

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Experiments demonstrate increased compressive strength and sustainability in recycled concrete, highlighting effective use of construction waste.

Compressive strength of recycled concrete reached 46.7 MPa with optimal aggregate ratios.
Microstructure improved with proper mineral admixture content in the binder, leading to enhanced performance.
Utilizing construction and demolition waste significantly reduced costs and carbon dioxide emissions.
The workability of concrete changes with varying ratios of concrete-based and brick-based aggregates.

Mao et al. (2025) studied this question.

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Experiments demonstrate increased compressive strength and sustainability in recycled concrete, highlighting effective use of construction waste.