Abstract
AbstractConstruction waste was processed into recycled coarse aggregates of 5–20 mm and fine aggregates of 0–5 mm by using a mobile crushing and screening process. Cementitious materials such as cement, fly ash, asphalt mixture reclaimed dust, and additives were added to prepare the low strength and high fluidity materials. Volumetric method was used to design the mix proportion of different materials. The optimum mix proportion of 0–5 mm recycled fine aggregates and 5–20 mm recycled coarse aggregates for the mix design was found to be 33.5% and 66.5%, respectively. The workability and mechanical properties of low strength and high fluidity materials mixed with different cementitious materials were investigated. The results show that the material workability decreased with increasing asphalt mixture reclaimed dust and increased after adding water reducing admixture. The 28-day compressive strength is found to be between 1.4 and 4.1 MPa meeting the material specification requirements.
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