Potential use of PET and PP as partial replacement of sand in structural concrete

ABSTRACT The use of polymeric residues in the civil construction has been target many studies aiming to reduce volume post-consumer plastics environment. This work focuses on viability polyethylene terephthalate (PET) and polypropylene (PP) as partial replacement sand concrete. PET PP flakes from packings were used light aggregate partially replace, individually, 10% sand. effect adding these polymers was investigated terms physical, mechanical, durability morphological properties Physical measured water absorption, voids content specific mass. Mechanical compressive strength elasticity modulus. Durability capillarity absorption electrical indication concrete resist chloride ion penetration. MEV EDS carry out analysis. DSC curves carried evaluate thermal flakes. Contact anlge test also performed. addition reduced by 20%, whilst reduction modulus 16% for samples, almost insignificant samples. results show that contributed increase resistance samples penetration 15% 57%, respectively; however, there an absorption. In it is possible observe a lower interfacial adhesion between cementions paste comparison PET.