Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of Using Sasobit and SBS on the Engineering Properties of Bitumen and Stone Mastic Asphalt
Using hard and polymer-modified binders in stone mastic asphalt mixtures reduces workability considerably. In this study, Sasobit (Sasolwax, Worthdamm, Hamburg) is used in bitumen to increase the workability and efficiency of styrene-butadiene-styrene (SBS)–modified binders. The properties of SBS-modified and Sasobit-modified binders and mixtures were evaluated for their rheological and mechanical performances using different experimental techniques such as rheological bitumen tests—i.e., dynamic shear rheometer (DSR), bending beam rheometer (BBR), and hot-mixture performance tests; i.e., dynamic creep, fatigue, and toughness index tests. Sasobit improves the effectiveness of SBS modification, especially at medium to high temperatures, although it is not as flexible as SBS at low temperatures. In some cases, SBS modification is more effective than Sasobit modification when used alone. However, a better performance is achieved when 3% SBS plus 3% Sasobit is used when the two modifiers are mixed in the same binder, especially in terms of fatigue performance.
Effects of Using Sasobit and SBS on the Engineering Properties of Bitumen and Stone Mastic Asphalt
Using hard and polymer-modified binders in stone mastic asphalt mixtures reduces workability considerably. In this study, Sasobit (Sasolwax, Worthdamm, Hamburg) is used in bitumen to increase the workability and efficiency of styrene-butadiene-styrene (SBS)–modified binders. The properties of SBS-modified and Sasobit-modified binders and mixtures were evaluated for their rheological and mechanical performances using different experimental techniques such as rheological bitumen tests—i.e., dynamic shear rheometer (DSR), bending beam rheometer (BBR), and hot-mixture performance tests; i.e., dynamic creep, fatigue, and toughness index tests. Sasobit improves the effectiveness of SBS modification, especially at medium to high temperatures, although it is not as flexible as SBS at low temperatures. In some cases, SBS modification is more effective than Sasobit modification when used alone. However, a better performance is achieved when 3% SBS plus 3% Sasobit is used when the two modifiers are mixed in the same binder, especially in terms of fatigue performance.
Effects of Using Sasobit and SBS on the Engineering Properties of Bitumen and Stone Mastic Asphalt
Kök, Baha Vural (Autor:in) / Akpolat, Mustafa (Autor:in)
20.01.2015
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Effects of Using Sasobit and SBS on the Engineering Properties of Bitumen and Stone Mastic Asphalt
| British Library Online Contents | 2015
Effects of Using Sasobit and SBS on the Engineering Properties of Bitumen and Stone Mastic Asphalt
| Online Contents | 2015
Effect of mineral filler on properties of warm asphalt mastic containing Sasobit
| British Library Online Contents | 2013
Effect of mineral filler on properties of warm asphalt mastic containing Sasobit
| Online Contents | 2013