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首页> 美国政府科技报告 >Improve the Quality and Service Life of Water-Based Pavement Marking Paints on Pavements with High-Iron AggregatesResearch.
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Improve the Quality and Service Life of Water-Based Pavement Marking Paints on Pavements with High-Iron AggregatesResearch.

机译：提高高铁骨料路面水性路面标线涂料的质量和使用寿命研究。

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White pavement paint marking on airport runways was being discolored by rust-like staining. Discoloration is a critical safety problem because white paint indicates runways and yellow paint is used for taxiways and aircraft parking. When the white paint is stained it becomes more difficult to distinguish from the yellow paint. This study determined the cause of the discoloration was from the ferrous minerals found in the pavement aggregates. The study included contacting the industry for methods to extend the service life of pavement paint markings. Water blasting the paint to remove the rust and/or using a modified Federal Specification TT-P-1952E water-borne paint has proven to mitigate the staining. In addition, staining can be reduced by applying a protective coating over the paint; pretreating the asphalt; or using alternative pavement marking materials. Life-cycle cost analyses identified the modified Type III water-borne paint with Type III beads to be the least costly of the proven and potential methods presented.

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