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首页> 外文会议>9th World conference on transport research (9th WCTR) >EFFECTS OF COARSE AGGREGATES ONCONTINUOUSLY REINFORCED CONCRETEPAVEMENT BEHAVIOR AND PERFORMANCE
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EFFECTS OF COARSE AGGREGATES ONCONTINUOUSLY REINFORCED CONCRETEPAVEMENT BEHAVIOR AND PERFORMANCE

机译：粗骨料对连续增强的混凝土行为和性能的影响

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The coarse aggregate type in continuously reinforced concrete (CRC) pavements has beenknown as one of the most important design variables that affect the behavior and performanceof the CRC pavement systems. This paper presents how much various coarse aggregatesaffect time histories of mean crack spacing, crack width, and steel stress at crack, crackspacing distribution, and punchout failures. Comparisons of the results have been madeespecially for coarse aggregate types widely used in Texas and Korea such as granite,limestone, and siliceous river gravel. In order to analyze the behavior of the CRC pavements,a recently developed computer program, CRCP-9, has been used. This computer program hasbeen developed using finite element formulations and probabilities theories. The theoreticalbackground for numerical modeling of the CRC pavements, crack spacing prediction, andpunchout prediction is also explained in this paper. The analysis results show that the use ofdifferent coarse aggregates in the CRC pavements results in various pavement performance,which implies that better CRC pavement performance can be achieved by incorporatingcoarse aggregate characteristics in the pavement design.
机译：连续钢筋混凝土（CRC）路面中的粗骨料类型是影响CRC路面系统性能和性能的最重要的设计变量之一。本文介绍了多少种粗骨料会影响平均裂纹间距，裂纹宽度和裂纹处的钢应力，裂纹间距分布和冲压失败的时间历史。特别是对于在德克萨斯州和韩国广泛使用的粗骨料类型（例如花岗岩，石灰石和硅质河砾石）进行了结果比较。为了分析CRC路面的行为，已使用了最近开发的计算机程序CRCP-9。该计算机程序已经使用有限元公式化和概率论进行了开发。本文还阐述了CRC路面数值建模，裂缝间距预测和穿孔预测的理论背景。分析结果表明，在CRC路面中使用不同的粗骨料会导致各种路面性能，这意味着通过在路面设计中加入粗骨料特性可以实现更好的CRC路面性能。

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