纤维沥青碎石封层配合比设计方法研究  

Study on Design Methods of Fiber Reinforced Chip Seal Mixture

作　　者：董哲[1] 

机构地区：[1]通辽市交通工程局,内蒙古通辽028000

出　　处：《公路工程》2015年第2期40-44,共5页Highway Engineering

基　　金：国家自然科学基金资助项目(50478095);交通运输部西部交通科技项目(20113187721260)

摘　　要：目前纤维沥青应力吸收层配合比设计方法存在一些技术缺陷,由经验法或理论法确定的碎石、结合料用量往往不是实际工程中的最佳用量。提出采用低温弯曲试验峰值弯拉强度确定最佳乳化沥青、纤维撒布量,以直剪试验峰值剪切强度确定最佳碎石撒布量,经室内复合梁疲劳试验和vialit脱石率试验验证,该法具有较好的技术优越性。the design methods of fiber reinforced chip seal mixture has some defects,such as by empirical or theoretical method to determine the method of rubble,the amount of binder is often not practical engineering optimal dosage. this article using best peak flexural tensile strength of low temperature bending test to determine the emulsified asphalt and fiber contents,and using direct shear test peak shear strength to determine the optimal content of gravels praying quantity,After indoor composite beam fatigue test and vialit stone removal rate tests show that this method has better technical superiority.

关 键 词：道路工程 纤维碎石应力吸收层 弯拉强度 剪切强度 配合比设计 

分 类 号：U416.02[交通运输工程—道路与铁道工程]