PAVEMENT SURFACE POLISHING CHARACTERISTICS: A CIRCULAR TRACK TEST

This is the final report for this project. The report briefly describes two interim reports of (1) Field performance tests using a skid test trailer and (2) Adaption of the British Wheel for use in Texas. The second report includes the experimental work with the British Wheel and tests using an insoluble Residue procedure. The primary purpose of this report is to indicate studies accomplished with a Circular Track. The circular track was designed to study the pavement matrix. The results of the study were inconclusive but experiments with asphaltic concrete indicated a linear relationship between the friction properties of aggregate blends including the fine aggregate portion. Studies of Portland Cement Concrete revealed a linear relationship between texture values before and after polishing. No trends were found in the batch variables of cement factor, fine aggregate type, or curing environment. Based on the inconclusive results of the study, recommendations were made that no further testing be conducted with the circular track.