The raw material properties of epoxy resin rods in terms of high temperature performance, low temperature performance, tensile performance and water permeability are tested. The specific test methods and test results are as follows.

1. High temperature test

Since the asphalt concrete of the pavement layer has the characteristics of high mixing temperature and high construction temperature, and the discharge temperature of the pouring asphalt mixture is as high as 220 °C, the high temperature resistance of the material itself must be considered when choosing epoxy resin. In order to test the high temperature resistance of epoxy resin, each epoxy resin material was evenly coated on a 10Cm×10Cm steel plate according to the dosage of 800g/m2. Changes.

2. Low temperature test

After preparing 3 kinds of epoxy resins according to regulations, after demoulding, place them at room temperature of 25°C for 7 days, cut them into 25mm×100mm specimens, 3 pieces in each group, and then put the specimens into the environmental box that has reached the specified test temperature and freeze. 1h, at this temperature, bend the test piece around the metal rod by 180° evenly within 2~3s, and observe whether the test piece has cracks with the naked eye. From the test results, except for C epoxy resin, some specimens have less cracks, and the other two resins are in good condition without cracks. It shows that the three kinds of epoxy can meet the requirements of low temperature cracking prevention.

3. Tensile test

A dumbbell-shaped mold was used to form the specimen, and after forming, it was cured at room temperature of 25 °C for 24 hours, and then the tensile test was carried out with a computer-controlled universal testing machine. It can be seen that the average breaking strengths of the three epoxy resins are 22.84, 7.07, and 8.28 mPA, respectively, which are all greater than the technical requirement of 3.0 mPA, and the average breaking elongations are 30.02%, 108.47%, and 66.77%, which are also greater than 20%. Oxygen resin tensile properties meet the requirements