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Post Cast Headers at Highway Structure Expansion Joints
A method is needed on most decks having an asphalt concrete (AC) surfacing and expansion joints to prevent the AC from breaking up over the joint. In California, a dam type device called a 'header' is used. Headers are narrow strips on each side of the expansion joint that the AC butts against. They are usually relatively thin (about 3 inches). Consequently, they need to be very tough to withstand traffic impact and forces caused from compressed debris trapped in the joint. Many materials have been tried in California in a search for the most durable and inexpensive. This report discusses most of the materials used and their performance.
Post Cast Headers at Highway Structure Expansion Joints
A method is needed on most decks having an asphalt concrete (AC) surfacing and expansion joints to prevent the AC from breaking up over the joint. In California, a dam type device called a 'header' is used. Headers are narrow strips on each side of the expansion joint that the AC butts against. They are usually relatively thin (about 3 inches). Consequently, they need to be very tough to withstand traffic impact and forces caused from compressed debris trapped in the joint. Many materials have been tried in California in a search for the most durable and inexpensive. This report discusses most of the materials used and their performance.
Post Cast Headers at Highway Structure Expansion Joints
R. D. McKenzie (author)
1983
102 pages
Report
No indication
English
Long Highway Structures Without Expansion Joints
NTIS | 1983
|British Library Online Contents | 2006
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