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.
Masi G., Michelacci A., Manzi S., Bignozzi M.C. (2022). Assessment of reclaimed asphalt pavement (RAP) as recycled aggregate for concrete. CONSTRUCTION AND BUILDING MATERIALS, 341, 1-9 [10.1016/j.conbuildmat.2022.127745].
Assessment of reclaimed asphalt pavement (RAP) as recycled aggregate for concrete
Masi G.
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.| File | Dimensione | Formato | |
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MANZI_POST PRINT_RAP_manuscript.pdf
Open Access dal 11/05/2024
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Postprint
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Licenza per Accesso Aperto. Creative Commons Attribuzione - Non commerciale - Non opere derivate (CCBYNCND)
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6.24 MB
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Adobe PDF
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