Characterization of the adherence strength and the aggregate-paste bond of prestressed concrete with siderurgical aggregates

Concrete with siderurgical aggregates (SA) is a sustainable construction material great potential as structural concrete. For this reason, studies must be carried out on the behavior of concrete against prestressed elements, that open door to new applications such buildings, bridges or foundations. In study, feasibility established standardized adherence tests beams reinforced steel wires. The comparison between concrete-reinforcement union limestone and aggregates, has shown 23% higher in case latter. This study completed analysis paste-aggregate interface (ITZ) both types aggregate support results obtained test. addition, order know bond strength pastes incorporate SA, micro-Vickers hardness mixes are determined, turned proportional replacement fine SA. • A comprehensive were compiled through critical literature review. ITZ less porous. Microhardness 55% better bonding observed.