Abstract: The road performance of cement-stabilized macadam has an important impact on the service life of asphalt pavement, and its road performance is closely related to cement content, temperature and curing age.In this paper, the cement content, temperature and curing period are independent variables, and the mechanical strength indicators such as unconfined compressive strength, splitting strength and compression modulus of resilience of cement-stabilized macadam are response variables, and the orderly variable cumulative logit model. Using the numerical statistical analysis software Minitab to calculate and analyze the data files, a performance prediction method for cement-stabilized macadam road performance based on the Logit model is proposed.Finally, the laboratory test data of cement-stabilized macadam is used to verify the accuracy of the prediction model, and the prediction results of road performance of cement-stabilized macadam can be used to guide engineering practice.

Key words: cement-stabilized macadam, road performance, Logistic model, method of prediction

摘要： 水泥稳定碎石路用性能对沥青路面使用寿命有着重要的影响,而其路用性能与水泥含量、温度和养生龄期等因素密切相关。文中以水泥含量、温度以及养生龄期为自变量,水泥稳定碎石无侧限抗压强度、劈裂强度以及抗压回弹模量等力学强度指标为反应变量,采用有序变量累积Logit模型,运用数值统计分析软件Minitab对数据文件进行计算分析,提出了基于Logit模型的水泥稳定碎石路用性能预测方法。最后利用水泥稳定碎石室内试验数据,对预测模型的准确性进行验证,而水泥稳定碎石路用性能的预测结果可用于指导工程实践。

关键词: 水泥稳定碎石, 路用性能, Logistic模型, 预测方法