掺加沥青基碳纤维的沥青混合料路面的融雪研究

Study on Snowmelt of Asphalt Mixture Pavement with Asphalt-based Carbon Fiber

在沥青混合料中加入碳纤维和微胶囊相变材料,研究了微胶囊相变材料掺量和油石比对沥青混合料电阻率和融雪去冰效果的影响。结果表明,在马歇尔试件中油石比一定前提下,微胶囊掺量的增加会增大沥青混合料的电阻率,在通电情况下,路面掺加沥青基碳纤维的沥青混合料的热生成效率会提高,从而对路面融雪化冰效果会得到提升;马歇尔试件温度的降温趋势会随着微胶囊相变材料掺量的增加而逐渐变缓,稳定阶段的温度呈逐渐上升趋势;在实际掺加沥青基碳纤维的沥青混合料的配置过程中,如果碳纤维和微胶囊相变材料掺量一定的前提下,为了实现最佳的融雪化冰效果,油石比的选择可以直接采用最佳油石比。

Carbon fiber and microencapsulated phase change materials were added to asphalt mixture,and the effects of the content of microencapsulated phase change materials and the ratio of oil to stone on the resistivity of asphalt mixture and the effect of snow melting and ice removal were studied.The results show that the increase of microcapsule content will increase the resistivity of asphalt mixture on the premise of a certain oil stone ratio in Marshall test piece,and the thermal generation efficiency of asphalt mixture mixed with asphalt based carbon fiber will increase under the condition of power on,so the effect of snow melting and ice melting will be improved;the cooling trend of Marshall test piece temperature will increase with the content of microcapsule phase change material In the actual configuration of asphalt mixture mixed with pitch based carbon fiber,if the content of carbon fiber and microencapsulated phase change material is certain,in order to achieve the best effect of snow melting and ice melting,the best oil stone ratio can be selected directly.