水泥混凝土路面填缝料疲劳试验方法研究

Research on Fatigue Test Methods for Joint Sealing Materials for Cement Concrete Pavement

水泥混凝土路面填缝料在实际应用中,受气候、机械外力作用产生疲劳老化,使用寿命下降。填缝料疲劳导致地表水渗入基层是水泥混凝土路面破坏的重要原因之一。现有填缝料评价体系中无体现疲劳性能的评价指标。基于对现有水泥混凝土路面接缝料的力学研究和室内试验,提出适合于水泥混凝土路面填缝料疲劳性能检测的试验方法和仪器,其对于水泥混凝土路面填缝料的研究及应用具有重要意义。

Joint sealing materials for cement concrete pavement in practical application produce fatigue aging under effect of climate and mechanical force and the service life decreases.Penetration of surface water into base course caused by fatigue of joint sealing materials is one of important reasons for damage to cement concrete pavement.Existing evaluation system for joint sealing materials has no evaluation indices for fatigue performance.On the basis of mechanical research and indoor test for joint sealing materials for cement concrete pavement,this paper proposes test methods and instruments suitable for detection of fatigue performance of joint sealing materials for cement concrete pavement,which show importance significance for research and application of joint sealing materials for cement concrete pavement.