Analysis of Field Monitoring Data of CRC Pavements Constructed with Grade 70211 Steel

摘要

This report addresses important factors associated with the design of steel211u001ereinforcement in terms of layer configuration, bond characteristic, climatic 211u001eeffect, and others relative to an assessment of the suitability of the CRCP 8 211u001eprogram to represent and predict steel stresses in CRC pavement systems. It was 211u001enecessary to instrument an actual section of CRC pavement for concrete and steel 211u001estrains as they fluctuated under climatic and seasonal changes. The steel rebars 211u001ewere instrumented in a manner that would limit disturbance of the bond between 211u001ethe steel and the concrete, yet allow for precise measurements of the steel 211u001estrain at various distances from the crack face. Other field sections containing 211u001eGrade 70 steel were also included in this study. Crack spacing and crack width 211u001edata were collected and reported.