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首页> 美国政府科技报告 >Monitoring of Siliceous River Gravel and Limestone Continuously Reinforced Concrete Pavement Test Sections in Houston 2 Years After Placement, and Development of a Crack Width Model for the CRCP-7 Program.
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Monitoring of Siliceous River Gravel and Limestone Continuously Reinforced Concrete Pavement Test Sections in Houston 2 Years After Placement, and Development of a Crack Width Model for the CRCP-7 Program.

机译：休斯敦2年后硅酸盐河砾石和石灰石连续钢筋混凝土路面试验段的监测，以及CRCp-7项目裂缝宽度模型的开发。

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摘要

In describing the effect of coarse aggregate type on the performance of CRCP, the report documents the design, construction, and monitoring of 32 test sections in Houston, Texas. Constructed to evaluate the performance of pavements built in accordance with the CRCP-89(B) design detail recent developed by TxDOT, these test sections were monitored to determine the field performance of CRCP 2 years after construction, looking in particular at crack spacings and crack width. Then, using the observed performance of the different coarse aggregates, the study team evaluated the recently developed CRCP-89(B) design detail. Finally, using the CRCP-7 computer program, the predicted performance was compared with the measured performance of the CRCP test sections. Based on the comparison, a new model to be used with the CRCP-7 program, one capable of predicting crack widths, was developed.

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