PCA DX139P
Influence of Aggregate Properties on Effectiveness of Interlock Joints in Concrete Pavements
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This report presents laboratory results from repetitive loads made to evaluate aggregate interlock as a load transfer mechanism at pavement joints. Tests were made to study the influence of aggregate size, hardness, and age at time of joint cracking on load transfer effectiveness. Results indicated that large aggregates were beneficial in maintaining load transfer, especially for larger joint openings. Increasing aggregate hardness was also beneficial. In addition, age of concrete at the time of joint cracking was significant. Early cracking resulted in more aggregate pullouts than later cracking, which resulted in more aggregate fracture. Aggregate pullouts provided better load transfer.
| PCA DX139P | |
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| STANDARD INFO: | |
| Standard Name | PCA DX139P |
| Scope | Influence of Aggregate Properties on Effectiveness of Interlock Joints in Concrete Pavements |
| Publisher | PCA - Portland Cement Association |
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| Publication Year | |
| Most recent Version | MOST RECENT |
| Whether to be replaced | |
| Addendum | |
| FILE INFO: | |
| Number of Pages | 7 |
| PCA DX139P | ||
|---|---|---|
| History | Publisher Year | |
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