水泥消石灰改善OGFC路面水稳定性试验  

Experimental Study on Improving Moisture Susceptibility of OGFC Pavement with Cement and Hydrated Lime

作　　者：高莹[1] 雒晓东[2] GAO Ying;LUO Xiao-dong(School of Civil Engineering,Xijing University,Xi'an 710123,Shaanxi,China;Xi'an Municipal Engineering Design and Research Institute Co.,Ltd.,Xi'an 710068,Shaanxi,China)

机构地区：[1]西京学院土木工程学院,陕西西安710123 [2]西安市政设计研究院有限公司,陕西西安710068

出　　处：《筑路机械与施工机械化》2019年第4期57-61,共5页Road Machinery & Construction Mechanization

基　　金：陕西省交通厅科研项目(15JK2168)

摘　　要：通过浸水马歇尔试验与冻融劈裂试验研究添加水泥与消石灰对OGFC混合料水稳定性的影响。结果表明:随着消石灰掺量的提高,OGFC混合料的浸水马歇尔残留稳定度和冻融劈裂强度比均增长,在掺量为4.2%时均达到最大值;随水泥掺量的提高,OGFC混合料的浸水马歇尔残留稳定度和冻融劈裂强度比均存在峰值;推荐OGFC-13混合料中掺加4.2%的消石灰以提高OGFC混合料的水稳定性。The effect of adding cement and hydrated lime on the moisture susceptibility of OGFC mixture was studied by Marshall immersion test and freeze-thaw splitting test.The results show that with the increase of hydrated lime content,the residual stability by Marshall immersion test and freeze-thaw splitting strength ratio of OGFC mixture increase,and reach the maximum when the content is 4.2%.With the increase of cement content,the residual stability and freeze-thaw splitting strength ratio of the mixture show their peaks.It is recommended that 4.2%hydrated lime should be added into the OGFC-13 mixture to improve the moisture susceptibility.

关 键 词：道路工程 OGFC 水稳定性 消石灰 

分 类 号：U416.03[交通运输工程—道路与铁道工程]