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This research evaluates the feasibility of using recycles asphalt pavement (RAP) and supplementary cementitious materials (SCMs) in self consolidating concrete (SCC). The fresh, mechanical and durability properties of SCC mixtures were investigated. A total of sixteen mixtures divided into four groups with different RAP proportions: 0, 15, 30, and 55% replacing the natural coarse aggregate (NCA), and different percentages of supplementary cementitious materials (SCMs) replacing cement:60% Fly ash (FA), 60% ground granulated blast furnace slag (S), and 30% FA and 30% S. Constant water to cementitious materials ratio of 0.4 was maintained in all mixtures. The compressive strengths at 3, 14 and 28 days and split tensile strength at 28 days were tested. The durability characteristics including the unrestrained shrinkage strain and rapid chloride permeability (RCPT) tests were conducted. The results show that while the use of RAP reduces both the compressive and tensile strengths of SCC mixtures, it increases the resistance to chloride permeability. Keywords— Self compacting concrete; Recycled asphalt pavement; fly ash; slag; supplementary cementitious materials, natural coarse aggregate.

Self-compacting Concrete Study using Recycled Asphalt Pavement Incorporating Fly Ash, Slag and Superplasticizers