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June 12, 2026BuildingsOpen Access

Effect of Thermally Activated Construction and Demolition Waste as Partial Cement Replacement on the Physical, Mechanical, and Durability Properties of Low-Carbon Concrete

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Randomized trial evaluates the effects of thermally activated CDW on concrete properties, suggesting sustainable cement alternatives.

This research aims to assess the effects of thermally activated construction and demolition waste as a partial replacement for cement in concrete.
Produced hybrid recycled powder from mixed CDW through mechanical grinding.
Thermally activated the powder at 600 °C for concrete mixtures with 5%, 15%, 25%, and 35% replacement.
Investigated physical, mechanical, and durability properties including density, water absorption, and compressive strength.
Thermally activated recycled powder maintained satisfactory compressive strength and durability properties.
Concrete mixtures demonstrated improved resistance to carbonation and chloride penetration.
Significant potential identified for using recycled powder as a supplementary cementitious material (SCM).

Cunha et al. (2026) studied this question.

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