Massive waste materials were produced by the construction and demolition industry every year. In residential constructions, clay bricks are a dominant material and they account for a large proportion of construction and demolition waste. Using crushed bricks in cement concrete is an effective way to preserve natural aggregate and to reduce construction and demolition waste. The mechanical properties, the permeability and the carbonation resistance of concrete with recycled clay brick as fine aggregate were studied in this paper. The results showed that the compressive strength, the flexural strength and the impermeability of concrete decreased with the increasing of the replacement percent of recycled clay brick. However, the permeability of concrete with the water to cement ratio of 0.35 was still at the “Low” level when the replacement percent was less than or equal to 75%. The carbonation resistance of concrete using recycled clay bricks as fine aggregate was degraded.

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Published on 25/09/20
Submitted on 21/09/20

DOI: 10.23967/dbmc.2020.016
Licence: CC BY-NC-SA license

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