详情

原文传递 Predicting the Effects of Freezing and Thawing on Pavement Support; Final rept

题名：	Predicting the Effects of Freezing and Thawing on Pavement Support; Final rept
作者：	Benson, C. H.; Bosscher, P. J.; Jong, D. T.
关键词：	Flexible pavements; Concrete durability; Vehicle weight limits; Cold weather limits; Subgrades; Stiffness; Bituminous concretes; Pavement bases; Computer models; Wisconsin
摘要：	The objective of this study was to develop a method to predict the timing of weight limits on secondary highways in Wisconsin. Two types of weight limits are of interest: overloads when the pavement is frozen and weight restrictions during thawing and post-thawing recovery period. To meet this objective, three sections of secondary highways with flexible pavements were instrumented and monitored to determine how freezing, thawing, and post-thaw recovery affect pavement stiffness. Data collected from these sites were used to develop a computer model (UWFrost) that can be used to predict seasonal changes in the support capacity of pavements. The computer model is operated from a Microsoft Excel spreadsheet.
总页数：	78p
报告类型：	科技报告