Abstract: With self-made modified unsaturated polyester as matrix resin，methyl ethyl ketone peroxide ( MEKPO) /cobalt naphthenate system was chosen to be asphalt pavement heat-reflective coating based on comparison among three kinds of the room temperature UPRcuring system geltime; the ratio of functional fillers TiO2 /SiO2 as 2∶ 1 was determined; it was suggested that the best content of paint filler was 13%－15%; when the paint filler was 14%，the ratio of TiO2 /SiO2 should be 10∶ 4 to ensure the coatings abrasion strengthened; gray paint composed of the red( 0． 5%) and green( 0． 8%) of the coating showed the best temperature lowering performance; unsaturated polyester coatings with good water resistance，oil resistance， flexibility and the ability to reduce the surface temperature could be compounded．

Key words: asphalt pavement, solar-reflect coat, curing, filler, lower the temperature

摘要： 以自制的不饱和聚酯树脂为涂料的基质树脂，通过对不饱和聚脂3种不同常温固化体系凝胶时间的比较，选 用过氧化甲乙酮(MEKPO)/环烷酸钴体系为沥青路面热反射涂料固化体系;选择TiO2/SiO2为2/1的功能性填料， 经过降温性能测试后，得出推荐填料用量为13%～15%;当功能性填料用量确定为14%，为保证涂料耐磨性最佳， TiO2/SiO2比例确定为10/4;以3种不同的灰色配比方法配制灰色涂料，铁红(0．5%)和铁绿(0．8%)复配制成的灰 色涂料降温性能最好;配制出具有良好耐磨性、耐水性、耐汽油性、柔韧性、耐候性及能够有效降低沥青路面表面温 度的不饱和聚酯降温涂料。

关键词: 沥青路面, 热反射涂料, 固化, 填料, 降温