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新旧沥青的融合性是温拌再生沥青混合技术的重要内容,基于性能试验来分析混合料的融合性,并从劈裂强度、浸水劈裂强度、冻融前后的劈裂强度等指标分析上,分别从不同旧料掺量上进行常规温再生和沥青完全融合温再生试验对比。结果显示,常规温再生混合料试件的性能指标随旧料比例的增加而上升,比完全融合温再生混合料试件的性能指标均高,在旧料掺量小于50%时,融合性能良好。
The integration of old and new asphalt is an important part of the warm mixing asphalt recycling technology. Based on the performance test, the fusion of the mixture is analyzed. Based on the analysis of indexes such as splitting strength, immersion splitting strength, splitting strength before and after freezing and thawing, Respectively, from the different content of old material conventional temperature regeneration and complete fusion of asphalt warm regeneration test comparison. The results show that the performance index of the conventional temperature-regenerated mixture samples increases with the increase of the proportion of the old materials, which is higher than that of the fully-fused temperature-regenerated mixture sample. The fusion properties are good when the content of the old material is less than 50% .