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为使温拌技术在开级配磨耗层(OGFC)混合料中得到更好的应用,选用橡胶沥青作为胶结料,以及EvothermDAT和S-I两种类型温拌剂,进行温拌橡胶沥青OGFC混合料路用性能研究.结果表明,温拌橡胶沥青OGFC混合料的各项配合比检验指标与热拌橡胶沥青OGFC混合料的相比,未产生明显差异,并且均能满足《规范》(JTG F40-2004)的技术要求;温拌剂的加入,降低了橡胶沥青OGFC混合料的水稳定性能,但是5次冻融循环后,与热拌橡胶沥青OGFC混合料相比,Evotherm-DAT温拌橡胶沥青OGFC混合料表现出较好的水稳定性.
In order to get a better application of warm mix technology in OGFC mix, rubber asphalt was chosen as the cementing material, and EvothermDAT and SI two types of warm mix agent were used to mix warm asphalt rubber OGFC mixture road The results show that compared with the hot mix rubber asphalt OGFC mixture, the test results of the mix proportion of the warm mix rubber asphalt OGFC mix did not have obvious difference, and all can meet the requirements of “Code” (JTG F40-2004 ); The addition of warm mix agent reduced the water stability of rubber asphalt OGFC mixture, but after 5 freeze-thaw cycles, compared with hot mix rubber asphalt OGFC mixture, Evotherm-DAT warm mix rubber asphalt OGFC The mixture showed better water stability.