The Effect of Antistrip Treatments on Asphalt-Aggregate Systems: An Environmental Scanning Electron Microscope Study
| Autor: | Theresa M. Williams, Francis P. Miknis |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Aggregate (composite)
Materials science Polymers and Plastics business.industry Scanning electron microscope 02 engineering and technology 021001 nanoscience & nanotechnology Paint adhesion testing Asphalt concrete 020401 chemical engineering Asphalt Materials Chemistry 0204 chemical engineering Composite material Moisture Damage 0210 nano-technology business Environmental scanning electron microscope |
| Zdroj: | Journal of Elastomers & Plastics. 30:282-295 |
| ISSN: | 1530-8006 0095-2443 |
| Popis: | The performance of three antistrip additives—a lime-treated aggregate, an amine-treated asphalt and a styrene-butadiene rubber-treated aggregate, was studied with an environmental scanning electron microscope (ESEM). Samples were prepared with the untreated asphalt and aggregate, the treated asphalt with untreated aggregate and untreated asphalt with each treated aggregate. The same asphalt and aggregate sources were used in each test and all samples were run in duplicate. All samples were examined along the asphalt-aggregate interface in the ESEM prior to and following each freeze-thaw cycle. The samples were subjected to a total of ten freeze-thaw cycles. All three additives reduced the potential for moisture damage by maintaining asphalt-aggregate adhesion better than the control samples. Based on ESEM observation of the asphalt-aggregate interface before and after freeze-thaw cycling, the styrene-butadiene rubber-coated aggregate samples performed better than the amine-treated asphalt samples which performed better than the lime-treated aggregate samples. |
| Databáze: | OpenAIRE |
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