A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of Glass Fiber Composite Dowel Bars for Highway Pavement Slabs
America's roadways are in serious need of repair. According to the American Society of Civil Engineers (ASCE) one third of the nation's roads are in poor or mediocre condition. In the latest report prepared by ASCE, these conditions were estimated to cost American drivers $5.8 billion and as many as 13,800 fatalities a year from 1999 to 2001. A considerable amount of the damage is due to the premature deterioration of concrete resulting from the corrosion of steel reinforcement. Fabricating this reinforcement using a material and/or shape conducive to transferring wheel loads will help to aid in minimizing roadway damage. Load transfer within a series of concrete slabs takes place across the joints. For a typical concrete paved road, these joints are approximately 1/8 gaps between two adjacent slabs. Dowel bars are located at these joints and used to transfer load from one slab to an adjacent slab. After a significant number of vehicles have passed over the joint an oblonging where the dowel bar contacts the concrete can occur. This oblonging creates a void space. This void space is formed due to a stress concentration where the dowel contacts the concrete at the joint face directly above and below the dowel. Over time, the repeated process of traffic traveling over the joint crushes the concrete surrounding the dowel bar and causes a void in the concrete. This void inhibits the dowel's ability to effectively transfer load across the joint.
Investigation of Glass Fiber Composite Dowel Bars for Highway Pavement Slabs
America's roadways are in serious need of repair. According to the American Society of Civil Engineers (ASCE) one third of the nation's roads are in poor or mediocre condition. In the latest report prepared by ASCE, these conditions were estimated to cost American drivers $5.8 billion and as many as 13,800 fatalities a year from 1999 to 2001. A considerable amount of the damage is due to the premature deterioration of concrete resulting from the corrosion of steel reinforcement. Fabricating this reinforcement using a material and/or shape conducive to transferring wheel loads will help to aid in minimizing roadway damage. Load transfer within a series of concrete slabs takes place across the joints. For a typical concrete paved road, these joints are approximately 1/8 gaps between two adjacent slabs. Dowel bars are located at these joints and used to transfer load from one slab to an adjacent slab. After a significant number of vehicles have passed over the joint an oblonging where the dowel bar contacts the concrete can occur. This oblonging creates a void space. This void space is formed due to a stress concentration where the dowel contacts the concrete at the joint face directly above and below the dowel. Over time, the repeated process of traffic traveling over the joint crushes the concrete surrounding the dowel bar and causes a void in the concrete. This void inhibits the dowel's ability to effectively transfer load across the joint.
Investigation of Glass Fiber Composite Dowel Bars for Highway Pavement Slabs
M. L. Porter (author) / R. J. Guinn (author) / A. L. Lundy (author) / D. D. Davis (author) / J. G. Rohner (author)
2001
182 pages
Report
No indication
English
GLASS FIBER REINFORCED POLYMER DOWEL BARS FOR TRANSVERSE PAVEMENT JOINTS
| British Library Conference Proceedings | 1999
Dowel bars corrosion in concrete pavement
| British Library Online Contents | 2000
Dowel bars corrosion in concrete pavement
| Online Contents | 2000
Teller on Dowel Bars Across Pavement Joints
| ASCE | 2021
Performance of Dowel Bars and Rigid Pavement
| NTIS | 2001