A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Recycled Asphalt Pavement Material Stabilized with Fly Ash
This paper describes a case study where asphaltic recycled pavement material (RPM) blended with Class C fly ash was used as base course during reconstruction of a 0.5-km section of asphalt pavement in Waseca, Minnesota. The RPM was blended with cementitious fly ash to increase its bearing resistance and stiffness. California bearing ratio (CBR) and resilient modulus (Mr) tests were conducted on the RPM alone and RPM blended with fly ash (referred to as stabilized RPM, or SRPM). Falling weight deflectometer (FWD) tests were also conducted on the as-built pavement. Addition of fly ash improved the bearing resistance and stiffness of the RPM significantly. After 7 d of curing, CBR of the SRPM (13 to 94) was three to nine times the CBR of the RPM alone (3 to 17) and Mr of the SRPM ranged between 50 and 120 MPa, whereas the Mr of the RPM was 47 MPa. The FWD tests demonstrated that the SRPM maintained its stiffness even after exposure to freeze-thaw cycling during the first winter after construction.
Evaluation of Recycled Asphalt Pavement Material Stabilized with Fly Ash
This paper describes a case study where asphaltic recycled pavement material (RPM) blended with Class C fly ash was used as base course during reconstruction of a 0.5-km section of asphalt pavement in Waseca, Minnesota. The RPM was blended with cementitious fly ash to increase its bearing resistance and stiffness. California bearing ratio (CBR) and resilient modulus (Mr) tests were conducted on the RPM alone and RPM blended with fly ash (referred to as stabilized RPM, or SRPM). Falling weight deflectometer (FWD) tests were also conducted on the as-built pavement. Addition of fly ash improved the bearing resistance and stiffness of the RPM significantly. After 7 d of curing, CBR of the SRPM (13 to 94) was three to nine times the CBR of the RPM alone (3 to 17) and Mr of the SRPM ranged between 50 and 120 MPa, whereas the Mr of the RPM was 47 MPa. The FWD tests demonstrated that the SRPM maintained its stiffness even after exposure to freeze-thaw cycling during the first winter after construction.
Evaluation of Recycled Asphalt Pavement Material Stabilized with Fly Ash
Li, Lin (author) / Benson, Craig H. (author) / Edil, Tuncer B. (author) / Hatipoglu, Bulent (author) / Tastan, Onur (author)
Geo-Denver 2007 ; 2007 ; Denver, Colorado, United States
2007-10-14
Conference paper
Electronic Resource
English
Evaluation of Recycled Asphalt Pavement Material Stabilized with Fly Ash
| British Library Conference Proceedings | 2007
| Trans Tech Publications | 2015
| British Library Conference Proceedings | 2015