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 different types of concrete. 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.

Nisticò, R., Lavagna, L., Boot, E., Ivanchenko, P., Lorusso, M., Bosia, F., et al. (2021). Improving rubber concrete strength and toughness by plasma‐induced end‐of‐life tire rubber surface modification. PLASMA PROCESSES AND POLYMERS, 18(9), 1-11 [10.1002/ppap.202100081].

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

Nisticò, Roberto
Primo
;
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 different types of concrete. 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.
Articolo in rivista - Articolo scientifico
composite materials; concrete; mechanical properties; plasma treatments; rubber; surface modifications;
English
1
11
11
Nisticò, R., Lavagna, L., Boot, E., Ivanchenko, P., Lorusso, M., Bosia, F., et al. (2021). Improving rubber concrete strength and toughness by plasma‐induced end‐of‐life tire rubber surface modification. PLASMA PROCESSES AND POLYMERS, 18(9), 1-11 [10.1002/ppap.202100081].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/349576
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