Akademik Veri Yönetim Sistemi
MATERIALES DE CONSTRUCCIÓN, cilt.74, sa.353, ss.1-10, 2024 (SCI-Expanded)
The
use of recycled aggregates instead of natural aggregates used in concrete
reduces environmental pollution and concrete costs. Recycled Asphalt Pavement
(RAP) aggregate used as recycled aggregate has a lower water absorption than
natural aggregate due to its bituminous structure, which reduces the water
requirement of fresh concrete. In this study, it was aimed to determine the
optimum use of RAP particles as aggregate in concrete for read pavements and to
determine their durability properties. For this purpose, RAP was used instead
of crushed stone aggregate used in concrete road construction. RAP was used by replaced
aggregate 0%, 25%, 50% and 100% of the crushed stone aggregate used on the
concrete road. The dose of the produced concrete was 350 kg/m3 and the
water/cement ratio was kept constant as 0.45. The fresh workability and air
content of concretes containing RAP were determined. Compressive strength,
splitting tensile strength, electrical resistivity value, accelerated corrosion
test of hardened concretes were subjected to corrosion resistance, water
absorption and porosity percentage, acid resistance, ultrasonic pulse rate and Scanning
Electron Microscope (SEM) and X-ray Diffractometer (XRD) analyzes were
determined. In the experimental results, it has been observed that the use of
RAP ratio of 25% and 50% remains within the limit values for concrete pavement.
It is recommended to be used on reinforced concrete roads that will be exposed
to adverse environmental conditions with its high corrosion resistance, thanks
to its anti-corrosion feature.