Design and Evaluation of Sustainable Structural Lightweight Concrete Using Recycled Pet as Aggregates.

This positive tendency is dissimilar to that of other authors, who observed a negative trend of reduced water absorption with an increase in hardened density in structural lightweight concrete ( Akinwumi et al., 2014 ; Hasan et al., 2021 ; Majhi et al., 2021 ; Shafigh et al., 2014 ).

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