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Título: The effect of cardanol-formaldehyde resin in the rheological properties of the asphalt binder
Autor(es): Andrade, José Roberto Moreira de
Oliveira, Sâmeque do Nascimento
Soares, Jorge Barbosa
Soares, Sandra de Aguiar
Palavras-chave: Transportes
Asfalto - Deformação
Renewable resource
Cardanol formaldehyde resin
Asphalt binder
Data do documento: Abr-2017
Editor: International Journal of Civil & Environmental Engineering
Citação: ANDRADE, José Roberto Moreira de. The effect of cardanol-formaldehyde resin in the rheological properties of the asphalt binder. International Journal of Civil & Environmental Engineering, Rawalpindi Cantt, v. 17, n. 2, p. 1-10, 2017.
Abstract: Due to increasing traffic in federal and state roads, asphalt pavements develop problems such as permanent deformation, fatigue cracks and thermal breakdown. This work aims to use a phenolic resin obtained from a renewable product (Cashew Nut Shell Liquid- CNSL) as an additive in asphalt mixtures. The resin was synthesized from the reaction of formaldehydewithcardanol, which was extracted from Cashew Nut Shell Liquid (CNSL) by liquid-liquid extraction. After FTIR characterization, the resin was added to the asphalt binder. This mixture called CAPRES presented interesting results, like reduction of approximately 10°C in the mixing and compaction temperature (MCT), improved elastic response and an increase in stiffness compared to pure asphalt cement (AC). These results reduce significantly problems found on asphaltic pavement with regard to structural problems such as permanent deformations.
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