Sustainable Concrete in the Construction Industry of Kurdistan-Iraq through Self-Curing

The improper curing of concrete can seriously affect its hardened properties. However, a large quantity water is required to cure after casting. Water valuable resource and availability posing particular challenge in the Middle East including Kurdistan region Iraq. Self-curing may be considered novel method that inside mix retained so hydration continue without supply additional Therefore, aim this study was include self-curing agent, named Polyethylene glycol-400 (PEG-400), as one constituents order save normally Six mixes were cast with constant W/C ratio 0.5; two them ordinary whereas other contained 0.5%, 1%, 1.5%, 2% PEG-400 by weight cement. All ingredients, except PEG-400, provided locally. Three different regimes employed: air under ambient laboratory conditions, curing, using dosages PEG-400. Testing included compressive strength, ultrasonic pulse velocity (UPV), absorption. results showed 1% optimum dosage used for self-cured concrete.