This study evaluates the effectiveness of using different plasma treatments to favor the compatibility between rubber and a cement matrix in composites, thus leading to a different surface reactivity of the rubber component. Plasmatreated rubbers were introduced into two d ifferent types of concr ete. Mechanical tests highlighted that Portland concrete composites filled with N2/H2 plasmatreated rubber had increased flexural strength, toughness, and compression strength compared to composites containing untreated rubber. A scaling law is also proposed to qualitatively discriminate between related effects due to topological/roughness or intrinsic/chemical adhesion modifications. Plasma treatment can improve both intrinsic adhesion and roughness of the rubber–cement interface and thus the overall concrete strength and toughness .

Improving rubber concrete strength and toughness by plasma‐induced end‐of‐life tire rubber surface modification / Nistico', Roberto; Lavagna, Luca; Boot, Elisa A.; Ivanchenko, Pavlo; Lorusso, Massimo; Bosia, Federico; Pugno, Nicola M.; D'Angelo, Domenico; Pavese, Matteo. - In: PLASMA PROCESSES AND POLYMERS. - ISSN 1612-8850. - ELETTRONICO. - (2021), p. e2100081. [10.1002/ppap.202100081]

Improving rubber concrete strength and toughness by plasma‐induced end‐of‐life tire rubber surface modification

Roberto Nisticò;Luca Lavagna;Federico Bosia;Matteo Pavese
2021

Abstract

This study evaluates the effectiveness of using different plasma treatments to favor the compatibility between rubber and a cement matrix in composites, thus leading to a different surface reactivity of the rubber component. Plasmatreated rubbers were introduced into two d ifferent types of concr ete. Mechanical tests highlighted that Portland concrete composites filled with N2/H2 plasmatreated rubber had increased flexural strength, toughness, and compression strength compared to composites containing untreated rubber. A scaling law is also proposed to qualitatively discriminate between related effects due to topological/roughness or intrinsic/chemical adhesion modifications. Plasma treatment can improve both intrinsic adhesion and roughness of the rubber–cement interface and thus the overall concrete strength and toughness .
File in questo prodotto:
File Dimensione Formato  
2021_Plasma_PE_Lavagna.pdf

accesso aperto

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Creative commons
Dimensione 1.88 MB
Formato Adobe PDF
1.88 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2912825