Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cold-Recycling of Asphalt Pavement-U.S. 24
Historically, the State of Colorado has used one of two methods to rehabilitate old asphalt pavement. The most common method is the conventional Hot Bituminous Pavement (HBP) overlay over the existing pavement. In the second method, the existing pavement is removed and replaced with another asphalt pavement, using virgin aggregate and new asphaltic cement. More recently, however, the need for energy and natural resource conservation had led to the state's standard use of hot asphalt pavement recycling. Cold-recycling an asphalt pavement is an entirely different process and several different methods for cold-recycling are available. Except for a few small projects, the majority of cold-recycling in Colorado has been limited to the use of leftover crushed pavement as a cold mix for temporary road repair and shoulder widening by maintenance forces. The objective of the study was to evaluate the cold-recycling process and to determine the effectiveness of the three types of rejuvenating agents used in the cold-recycle mix. Additionally, two types of covers were used and compared to determine their ability to seal the cold-recycled pavement.
Cold-Recycling of Asphalt Pavement-U.S. 24
Historically, the State of Colorado has used one of two methods to rehabilitate old asphalt pavement. The most common method is the conventional Hot Bituminous Pavement (HBP) overlay over the existing pavement. In the second method, the existing pavement is removed and replaced with another asphalt pavement, using virgin aggregate and new asphaltic cement. More recently, however, the need for energy and natural resource conservation had led to the state's standard use of hot asphalt pavement recycling. Cold-recycling an asphalt pavement is an entirely different process and several different methods for cold-recycling are available. Except for a few small projects, the majority of cold-recycling in Colorado has been limited to the use of leftover crushed pavement as a cold mix for temporary road repair and shoulder widening by maintenance forces. The objective of the study was to evaluate the cold-recycling process and to determine the effectiveness of the three types of rejuvenating agents used in the cold-recycle mix. Additionally, two types of covers were used and compared to determine their ability to seal the cold-recycled pavement.
Cold-Recycling of Asphalt Pavement-U.S. 24
D. S. Harmelink (Autor:in)
1990
74 pages
Report
Keine Angabe
Englisch
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