普通公路沥青路面裂缝开裂原因及修复试验研究

Study on Cracking Causes and Repair Test of Asphalt Pavement in Ordinary Highway

裂缝是路面常见的病害之一。为研究沥青路面裂缝开裂的修复方法以及产生裂缝的原因和机理,通过对比试验,采用高聚物对裂缝进行修复,比对修复前后的沥青小梁试件在不同温度下的抗弯拉强度,并得出:随着温度的逐渐升高,原状试件与修复后的小梁试件对于抗弯拉强度的效果逐渐接近;随着温度的升高两种试件的抗弯拉强度均有所下降;当温度达到35℃时,通过高聚物修复后的小梁试件的抗弯拉强度达到原状小梁试件的抗弯拉强度的85.71%。以产生较好的修复效果。

The cracks are one of the common diseases in pavement.In order to study the repair methods of asphalt pavement cracking and the causes and mechanisms of cracks,through the comparative experiment,the cracks are repaired by the high polymer.The bending tensile strengths of asphalt trabecular specimens before and after repaired are compared in the different temperature.The conclusion shows that the effect of the original specimen and repaired trabecular specimen on the bending tensile strength is close to each other with the gradual rise of temperature.When the temperature reaches 35℃,the bending tensile strength of the trabecular specimen repaired by high polymer reaches 85.71%of the original trabecular specimen so as to produce the better repair effect.