基于抗冲刷性能的半刚性基层材料组成设计方法  

Mix Design of Semi-rigid Base Material Based on Anti-erosion Performance

作　　者：盛燕萍[1,2] 李海滨[3] 陈拴发[1,2] 

机构地区：[1]长安大学材料科学与工程学院,陕西西安710064 [2]交通铺面材料教育部工程研究中心,陕西西安710064 [3]西安科技大学建工学院,陕西西安710064

出　　处：《郑州大学学报（工学版）》2012年第3期19-23,共5页Journal of Zhengzhou University（Engineering Science）

基　　金：国家科技基础条件平台建设项目(2005OKA32800);中央高校基本科研业务费专项基金(CHD2011JC054)

摘　　要：半刚性基层材料抗冲刷性能差是目前造成水泥混凝土路面板底脱空的主要原因.现行公路水泥混凝土路面设计规范对基层抗冲刷能力仅限于定性建议,而未提出定量指标.通过试验研究提出了水泥混凝土路面半刚性基层材料的组成设计指标与标准建议值,利用灰色系统理论的方法原理,建立水泥稳定碎石28 d冲刷量预测模型和7 d强度预测模型.最后,提出基于抗冲刷性能的水泥混凝土路面半刚性基层材料组成设计方法.性能试验结果显示,运用该方法设计的半刚性基层混合料能够达到其设计标准,表明该设计方法可行.Pavement slab with cavity caused by poor anti-erosion performance of semirigid base material is the main cause leading to damage of cement concrete pavement. Although requirements of the anti-erosion performance and stiffness of the base material are put forward in the existing design specification of cement concrete pavement, it is only limited within qualitative requirement level. The design index and standard of semirigid base material are put forward according to the experiment results and literature research. Gray system theory is used to establish erosion and strength prediction model of semi-rigid base material, and several prediction formula of erosion and strength are developed. Finally, the material composition design method of semi-rigid base based on anti-erosion properties is proposed. Test results show that the semi-rigid base designed with this design method has good performance.

关 键 词：水泥混凝土路面 半刚性基层 抗冲刷性能 组成设计方法 

分 类 号：U414[交通运输工程—道路与铁道工程]