Details

Autor(en) / Beteiligte

• Iwański, Marek
• Chomicz-Kowalska, Anna
• Maciejewski, Krzysztof

Titel

Application of synthetic wax for improvement of foamed bitumen parameters

Ist Teil von

• Construction & building materials, 2015-05, Vol.83, p.62-69

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2015

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• •We evaluated a foamed 50/70 pen bitumen modified with Fischer–Tropsch wax.•The additive reduced the dynamic viscosity of the binder above 100°C.•The foam expansion ratio increased linearly with additive dosage.•The foam half-life increased linearly with additive dosage.•The foam index increased with the increase of FT wax concentration. The aim of the research was to evaluate the properties of foamed bitumen, produced from a Fischer–Tropsch synthetic wax modified 50/70 penetration grade bitumen for use as a binder in road construction layers. The binders were subjected to conventional tests (including penetration, softening point, Fraass breaking point and dynamic viscosity) as well as bitumen-foam-specific testing (including expansion ratio, half-life and foam index at different foaming water contents). Optimum amounts of foaming water and Fischer–Tropsch wax were identified and the binders were classified as relevant for different low-energy bitumen mix production techniques.