掺膨胀剂水泥稳定碎石路用性能 - 交通运输工程学报 - 长安大学.pdf

第6 卷　第1 期 交 通 运 输 工 程 学 报 Vol.6　No.1 2006 年3 月 Journal of T raffic and Transportation Engineering M ar. 2006 :1671-1637(2006)0-1 00 -8 0 杨红辉,郝培文,戴经梁 ( , 　71006 ) 　:为减小水泥稳定碎石 层材料收缩变形量, 增强其抗裂能力, 采用向水泥稳定碎石材料中 掺加适量膨胀剂,通过膨胀剂的微膨胀来减小材料的收缩变形。室内试验结果和实体工程均表明, 膨胀剂能在水泥稳定碎石 层中产生微膨胀,抵消材料的部分收缩, 增加其密实度,使其抗裂性能 提高50 %左右, 因此,掺膨胀剂水泥稳定碎石具有优良的抗裂性能。 :道路工程;膨胀剂;路用性能;水泥稳定碎石 :U 1 　　　:A Road Performance of Cemen-t Stabilized Aggregate Mixture with Expansion Agent YANG Hong-hui, HAO Pe-i w en, DAI Jing-liang (Key Laboratory of Highw ay Engineering for Special Region of Ministry of Education, Chang an University, Xi an 71006 , Shaanxi, China) Abstract:In order to low the shrinkage of cemen-t stabilized aggregate, appropriate expansion agent w as added to cemen-t stabilized aggregate, its close-grained degree could be improved, its shrinkage could be decreased w hen the micro-expansion of expansion agent came into being . Test result show that cemen-t stabilized aggregate mixture w ith expansion agent has good character, its resisting shrinkage ability is increased by 50%, so cemen-t stabilized aggregate mixture with expansion agent has favorable road-applied capability . 11 tabs, 3 figs, 10 refs. Key words:road engineering ;expansion agent;road performance;cemen-t stabilized aggregate Author resume:YANG Hong-hui (1976-), male, doctoral student, 86-2-8 hong- huiyang @163. com. ,。 0 　　 　 ,90 % 。 . 　 ,, 。, 32.5 , 1。 , U (, [-1 2] , 。 ), UEA-H, 10%, 2.9