Debonding Location in Asphalt Concrete Associated with Moisture Damage
| Autor: | El Hussein H. Mohamed |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Materials science
Voiries urbaines business.industry Loss and damage Building and Construction Mix design Roads Asphalt concrete Cracking Voiries urbaines/chaussées Mechanics of Materials Asphalt Stripping (linguistics) General Materials Science Geotechnical engineering Roads/Pavement Current (fluid) Moisture Damage business Asphalt concrete Stripping Aggregates Moisture content Laboratory tests Civil and Structural Engineering |
| Zdroj: | Journal of Materials in Civil Engineering. 5:497-509 |
| ISSN: | 1943-5533 0899-1561 |
| DOI: | 10.1061/(asce)0899-1561(1993)5:4(497) |
| Popis: | This paper evaluates the existing adhesion theories and stripping mechanisms suggested in the literature. Factors contributing to the lack of success in predicting stripping susceptibility of asphalt concrete in the laboratory are also discussed. An earlier comprehensive investigation of the stripping phenomenon revealed serious deficiencies in the current approach to the problem. First, the interaction between the different components of the asphalt-concrete mixture under a wide temperature range is neglected. It is proven that differential thermal contraction, as a result of the large difference in the coefficients of thermal contraction, is an important factor. This paper addresses another deficiency, which is the lack of a precise description of the location where debonding associated with moisture occurs. Observations made during the experimental investigation revealed that initial separation in the compacted mix takes place between the asphalt matrix (mix of asphalt cement and fine material) and coated aggregate particles |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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