Limiting the maximum fine and coarse recycled aggregates-Type A used in structural concrete

The manufacture of concrete using recycled aggregates (RCA) is an alternative used to reduce the exploitation natural resources and landfilling construction waste. This paper discusses suitability producing structural be exposed XC1-XC4 environment employing different percentages fine RCA (FRCA) coarse (CRCA) classified as type A. Two experimental phases were conducted in which 300 kg cement/m3 effective water:cement ratio 0.48 (Phase 1) 0.52 2) employed with CRCA FRCA aggregates. types properties determined physical (density, absorption, accessible porous), mechanical (compressive, splitting tensile strength, modulus elasticity), shrinkage, durability (sorptivity, water penetration). After exhausting analyses values code requirements, successful use a simultaneous combination up 60 % 30 was defined Phase 1. In addition, 50 20 2.