A study about the performances of reclaimed asphalt pavement (RAP) sourced from 5 different Italian collection sites is presented to evaluate RAP as aggregate for concrete. Several RAP properties were investigated: physical properties (particles size distribution, water absorption, porosity, wettability), microstructure by microscopy, dimensional stability (drying shrinkage of mortar and concrete with 100% of RAP as aggregates) and durability assessment by freezing-thawing cycles. Several differences between RAP and natural aggregates used for concrete were highlighted. The use of RAP as recycled aggregate for concrete is a promising route, but a complete characterization is needed to ensure concrete performance and durability.

Assessment of reclaimed asphalt pavement (RAP) as recycled aggregate for concrete

Masi G.
Membro del Collaboration Group
;
Michelacci A.
Membro del Collaboration Group
;
Manzi S.
Membro del Collaboration Group
;
Bignozzi M. C.
Membro del Collaboration Group
2022

Abstract

A study about the performances of reclaimed asphalt pavement (RAP) sourced from 5 different Italian collection sites is presented to evaluate RAP as aggregate for concrete. Several RAP properties were investigated: physical properties (particles size distribution, water absorption, porosity, wettability), microstructure by microscopy, dimensional stability (drying shrinkage of mortar and concrete with 100% of RAP as aggregates) and durability assessment by freezing-thawing cycles. Several differences between RAP and natural aggregates used for concrete were highlighted. The use of RAP as recycled aggregate for concrete is a promising route, but a complete characterization is needed to ensure concrete performance and durability.
2022
Masi G.; Michelacci A.; Manzi S.; Bignozzi M.C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/900812
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