Sustainable hybrid lightweight aggregate concrete using recycled expanded polystyrene

HIGHLIGHTS

• What: This research explores the mechanical behavior of lightweight concrete (LWAC) using recycled EPS manufactured with a hybrid cement mixture (OPC and alkali-activated cement). This study reports that, regarding the morphology of polymer-lightened concrete, EPS beads act mainly as weak points in the mortar, promoting the initiation and propagation of cracks in the concrete structure. This study demonstrated the feasibility of producing lightweight concrete in compliance with the standard outlined in ACI 213R-03 for structural lightweight concretes, exceeding the minimum compressive strength by 48.8% and reducing the density by up to 21.5 . . .
  

   

  

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