Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/18677
Título: | Evaluation of the rheological behaviour of Warm Mix Asphalt (WMA) modified binders |
Autor(es): | Silva, Hugo Manuel Ribeiro Dias da Oliveira, Joel Ferreira, C. I. G. Peralta, Elvira Joana Ferreira |
Data: | Mai-2009 |
Editora: | Taylor and Francis |
Resumo(s): | Several processes and products are available to produce warm mix asphalt (WMA). The use of those may reduce the mixing and compaction temperatures in relation to hot mix asphalt (HMA), ensuring a good performance of the pavement. Lower plant mixing temperatures mean reduction in fuel consumption and lower emissions, what may contribute to diminish odours and health problems. A laboratory study on the properties of the modified binders (using two commercial WMA additives—Sasobit® and Cecabase®) was carried out through conventional (penetration, softening point), dynamic viscosity and rheology (DSR) tests, in order to establish the optimum additive content. Stripping of binder from the aggregates is a reported problem in WMA. Thus, the affinity of the modified binders was assessed without encountering significant problems. It was also observed that only Sasobit® alters the viscosity of the binder. A maximum temperature reduction of 15°C was achieved using 4% of Sasobit® with a softer binder. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/18677 |
ISBN: | 9780415558549 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | C-TAC - Comunicações a Conferências Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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10-RILEM_ATCBM_2009.pdf | 7th-ATCBM-2009_Paper1 | 958,62 kB | Adobe PDF | Ver/Abrir |