The influence of laboratory compaction methods on the physical and mechanical properties of foamed bitumen recycled mixes
Marek Iwański
Department of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology (Poland)
Anna Chomicz-Kowalska
Department of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology (Poland)
https://orcid.org/0000-0002-2784-8197
Piotr Ramiączek
Department of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology (Poland)
https://orcid.org/0000-0002-8143-4788
Krzysztof Maciejewski
Department of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology (Poland)
https://orcid.org/0000-0002-3002-9547
Mateusz Iwański
Department of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology (Poland)
https://orcid.org/0000-0002-3183-0141
Abstract
This study attempts to evaluate the influence of two advisable methods for compacting laboratory specimens of road base recycled mixes with foamed bitumen (MCAS) and bitumen emulsion (MCE). The obligatory regulations for this technology permit fabrication of the specimens using either an impact Marshall compactor or a static hydraulic press. The research showed that the compaction method influenced both the physical and mechanical properties of samples regardless of the type of bitumen binder. What is more, the structure of the material changed after the impact compaction process, which manifested in fact that many of the aggregate particles were crushed in its course. Better strength and resistance to moisture damage was observed in samples prepared in the hydraulic press. This was associated with lower void contents obtained in this compaction method.
Keywords:
Marshall compactor, hydraulic press, road base, cold recycling technology, foamed bitumen, bitumen emulsion, void content, resistance to moisture damageReferences
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Authors
Marek IwańskiDepartment of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology Poland
Authors
Anna Chomicz-KowalskaDepartment of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology Poland
https://orcid.org/0000-0002-2784-8197
Authors
Piotr RamiączekDepartment of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology Poland
https://orcid.org/0000-0002-8143-4788
Authors
Krzysztof MaciejewskiDepartment of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology Poland
https://orcid.org/0000-0002-3002-9547
Authors
Mateusz IwańskiDepartment of Transportation Engineering; Faculty of Civil Engineering and Architecture; Kielce University of Technology Poland
https://orcid.org/0000-0002-3183-0141
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