Published: 2019-10-01

Asphalt mixtures with binders fluidized by addition of vegetable origin oil for applications as flexible anti-crack layers

Andrzej Plewa

Abstract

The paper presents the results of research and analyses of the technical characteristics of asphalt mixtures with bituminous binders modified using SBS copolymers with the addition of bio-fluxing agents. The analysed asphalt mixtures have been subjected to water resistance ITSR tests, stiffness modulus IT-CY, and 4PB-PR tests as well as fatigue life test through 4PB-PR test. Basing on the obtained results of tests it has been stated that asphalt mixtures using elastomeric binder with the addition of bio-fluxing agents are characterized by a much greater fatigue life and water resistance in comparison to asphalt mixtures using industrially manufactured binders. Such material solutions can be effectively used as anti-crack layers preventing the propagation of reflective or fatigue cracking to the top layers of road surfaces or their strengthening. Another significant aspect of the conducted research and analyses is the fact that the addition of bio-fluxing agents allows to lower temperatures not only during production of asphalt mixtures but also during incorporation them into road surfaces, what on the other hand is very profitable.

Keywords:

binders containing bio-fluxing agents, asphalt mixtures, stiffness modulus, resistance to fatigue.

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Plewa, A. (2019). Asphalt mixtures with binders fluidized by addition of vegetable origin oil for applications as flexible anti-crack layers. Roads and Bridges - Drogi I Mosty, 18(3), 181–192. https://doi.org/10.7409/rabdim.019.012

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