微表处养护技术在高寒地区的应用

以哈(哈尔滨)-伊(伊春)高速公路连续几年实施微表处养护技术工程实践为基础,对寒冷地区微表处技术设计、施工工艺以及质量控制等方面进行了总结.分析表明,微表处在寒冷地区施工,用油量在合理范围内应选用偏上限油石比,粉细集料及小于0.075mm这一档不低于8.0％,水泥用量不能太大,并在适宜的季节施工,这样有利于在低温条件下抗剥落.

Application of Micro-Surfacing Technololy in High Latitude and Cold Area

Based on the example of micro-surfacing maintenance technology engineering practice of continuous implementation of Haerbin-Yichun Expressway, this article summarizes the technology design, construction technology and quality control of micro-surfacing in cold area. The analysis indicates when micro-surfacing construct in cold area, the amount of oil in reasonable scope should choose upper limit asphalt-aggregate ration, powder fine aggregate and the grade of less than 0.075mm which is not under 8.0% percent, the amount of cement content cannot be too much, and the construction season should be suitable. This is good for anti-strip when the condition is under low temperature.