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Evaluation off Alternative Pavement Marking Materials.
| 题名： | Evaluation off Alternative Pavement Marking Materials. |
| 作者： | Bagot, Keith W.; |
| 关键词： | PAVEMENTS, MARKERS, TEST AND EVALUATION, ULTRAVIOLET RADIATION, COST EFFECTIVENESS, EXPOSURE(GENERAL), COST ANALYSIS, SILICON DIOXIDE, MATERIALS, POLYMERS, ADHESION, RUBBER, CONCRETE, GLASS, COSTS, SURFACES, CEMENTS, SNOW, RETENTION(GENERAL), COLORS, VISIBILITY, CLIMATE, PAINTS, EPOXY COMPOUNDS, BENEFITS, AIRPORTS, FRICTION, BEADS, WATERBORNE. |
| 摘要： | This study was undertaken to evaluate potential alternative marking materials for use on airport pavement marking systems. The materials were evaluated for conspicuity, durability, rubber buildup, color retention, friction, environmental acceptability, and cost benefits. In all, five materials (two water-borne, two epoxies, and one methacrylic resin) were evaluated at three test airports around the country for a period of one year. The three test airports, chosen for their different climatic conditions, were Atlantic City, Greater Pittsburgh, and Phoenix Sky Harbor International airports. Epoxies and resins were more durable than water-borne paints in areas subject to heavy snowfall and snowplow activity, particularly when applied to Portland cement concrete surfaces. The epoxies tested, however, did show signs of yellowing after extensive ultraviolet exposure. It was also determined that the addition of silica and/or glass beads improved the conspicuity of the markings, improved friction, and minimized rubber adherence. The cost-benefit analysis showed that more durable materials and the addition of silica and/or beads does increase the initial cost of marking the airport surfaces but could reduce the number of painting cycles on many portions of the airport from several times per year to once every several years. |
| 总页数： | 50 |
| 报告类型： | 科技报告 |
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