摘要
为了指导高PG等级改性沥青的应用,保证施工质量,在实验室通过建立沥青混合料工作性与温度的关系,研究了高PG等级沥青混合料的施工温度。结果显示:(1)PG76-10 GAC-20C改性沥青混合料的最佳拌和温度为172℃,建议控制在170～175;最佳压实温度为161℃,建议控制在160～165℃;(2)PG82-10 GAC-16C改性沥青混合料的最佳拌和温度为178℃,建议控制在175～180℃;最佳压实温度为167℃,建议控制在165～170℃。
In order to guide the application of high PG grade modified asphalt and ensure the construc-tion quality, the construction temperature of high PG grade asphalt mixture was studied in this paper by estab-lishing relationship between workability and temperature of asphalt mixture. The results show ： （1） For PG 76 -10 GAC -20C modified asphalt mixture, the best mixing temperature is 172℃ and it should be controlled in 170 -175 ℃ ; the best compaction temperature is 161℃,and it should be controlled in 160 -165℃ ; （2） For PG 82 - 10 GAC - 16C modified asphalt mixture, the best mixing temperature is 178 ℃ and it should be controlled in 175 -180 ℃ ; the best compaction temperature is 167 ℃,and it should be controlled in 165 -170℃.
作者
钟国武
Zhong Guowu(Guangdong GuanYue Highway ＆ Bridge Co. L td , ,Guangzhou 511450)
出处
《石油沥青》
2018年第2期42-46,共5页
Petroleum Asphalt
关键词
PG等级改性沥青
沥青混合料
施工温度
工作性
PG grade modified asphalt, asphalt mixture, construction temperature, workability
