Under the serious concerns of environmental degradation due to the greenhouse gas emissions of ordinary Portland cement (OPC,PPC) industry, geopolymer concretes have been qualified as a good alternative to PPC,OPC concretes. Geopolymer concretes, known by their good mechanical and durability properties, possess different fresh and hardened behaviours as compared to PPC,OPC concretes. This reason is one of the main obstacles that hinder the deployment of these concretes worldwide. Furthermore, geopolymer concretes developed in the literature are mostly based on fly ash while only few works were carried out on geopolymer concrete based on a blended mix of metakaolin (MK)/granulated blast furnace slag (GBFS). At fresh state, the workability evolution during the first hour after mixing was followed. At hardened state, mechanical strengths is investigated with a special attention to the early age behaviour.
Plastic waste, Water absorption, Compressive strength of Concrete Geopolymer concrete; Metakaolin; Granulated blast furnace slag; Mechanical properties; Physical performances
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