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原文传递 Statistical Analysis of Rutting Behavior of HMA Mix Designs

题名：	Statistical Analysis of Rutting Behavior of HMA Mix Designs
作者：	James A. Crovetti
关键词：	Hot Mix Asphalt, Stone Matrix Asphalt, Rutting Resistance, Pavement Performance
摘要：	This report has presents an analysis of laboratory and field rutting performance for a variety of Stone Matrix Asphalt (SMA) and WisDOT standard Hot Mix Asphalt (HMA) mix designs constructed throughout the State of Wisconsin. Laboratory testing using the Georgia Loaded Wheel Tester was conducted on specimens compacted in the lab as well as on specimens cut from the surf^*: e of the constructed pavements. Field rut measurements were taken at yearly intervals between 1995 and 1998 using two configurations of the WisDOT profiler. Relative rankings of the various mix designs, in terms of rut resistance, were developed based on measured rut accumulations in the lab (lab prepared and field obtained specimens) as well from field rut measurements. Significant variations in lab and field performance were noted, producing inconsistent rankings for many of the mix designs. Based on field rutting data collected in Southern Wisconsin, mix designs incorporating the larger maximum aggreagte size (16 mm vs. 10 mm) are providing better long-term rutting resistance. Furthermore, the SMA mix designs investigated are not providing increased long-term rut resistance as compared to the standard WisDOT HV3 mix design.
报告类型：	科技报告