Transport mechanisms as indicators of the durability of precast recycled concrete

The objective of this paper was to analyze the influence crushed precast concrete waste on transport mechanisms as indicators durability recycled self-compacting (SCC) an alternative coarse fraction natural aggregate. replacement percentages were 20%, 50% and 100%, by weight, silica gravel 2/12.5 mm. Two types SCC manufactured: first with a minimum compressive strength 30 MPa (HR-30) second 45 (HR-45). SCC’s mechanical characteristics such strength, splitting tensile flexural modulus elasticity analyzed. Regarding physical properties related mechanisms, aggregate porosity, absorption, penetration water under pressure, density hardened ultrasonic pulse velocity All these compared those control concrete. results tests provide values close obtained for SCC, while, in terms fulfil limit that are considered good quality Therefore, it can be concluded use different degrees substitution is viable manufacture more sustainable SCC.