Abstract
The present study investigates the mechanical performance of recycled aggregates derived from excavation materials (REM).
REM is blended with diferent quantities of recycled phyllite materials (RPM) and is investigated by Los Angeles (LA) and
micro-Deval (MD) tests. X-ray difraction (XRD) and acid solubility test are performed on the pulverized fractions<1.6 mm
obtained from the LA and MD tests to assess the respective degree of fragmentation and wear of mineral components. The
results of the materials in unblended conditions showed considerable diference between MD performance while similar
performance was found for LA. Furthermore, about 40% of RPM was sufcient to blend with REM without disturbing the
required performance for blended mixtures. Mechanically weak minerals, i.e., phyllosilicates in RPM, signifcantly infuenced the MD performance in blended and unblended varieties, and limestone minerals seem to disintegrate when mixed
with amphibolite -which has the potential to dissolve in acidic environments.
REM is blended with diferent quantities of recycled phyllite materials (RPM) and is investigated by Los Angeles (LA) and
micro-Deval (MD) tests. X-ray difraction (XRD) and acid solubility test are performed on the pulverized fractions<1.6 mm
obtained from the LA and MD tests to assess the respective degree of fragmentation and wear of mineral components. The
results of the materials in unblended conditions showed considerable diference between MD performance while similar
performance was found for LA. Furthermore, about 40% of RPM was sufcient to blend with REM without disturbing the
required performance for blended mixtures. Mechanically weak minerals, i.e., phyllosilicates in RPM, signifcantly infuenced the MD performance in blended and unblended varieties, and limestone minerals seem to disintegrate when mixed
with amphibolite -which has the potential to dissolve in acidic environments.