Journal of the Korean Asphalt Institute ISSN:2234-0785(Print) 2635-9553(Online) 한국아스팔트학회지

This study was conducted to confirm the change in the cantabro loss according to the test conditions. The test temperature of the cantabro test was 20°C and –20°C and a dry sample and a wet sample were used. 4 types of pre-mix type high-viscosity binder and 1 type of plant-mix type high-viscosity binder were used and specimens were prepared with 75 blows marshall compaction and 20±5% porosity. Dry samples were cured at test conditions(20°C and –20°C) for 24hours in a constant temp&humi control chamber. Wet samples were immersed in a constant water bath at 60°C for 24hours and then cured for 6hours in a constant temp&humi control chamber. As a results of test, the 20°C cantabro loss of the dry sample did not significantly discriminate according to the PG grade, but the 20°C cantabro loss of the wet sample was confirmed to be different. In the –20°C cantabro test, the lower the PG grade, the smaller the cantabro loss occurred, and in the case of the wet sample, there was no significant difference from the dry sample.