Abstract
In order to evaluate the performance of asphalt pavement with a slag base, truck tests were conducted on a 12m radii circular test road consisting of various pavement sections. The new slag base material tested was a compound slag (mixture of 50% by weight of steel-making slag, 30% of blast-furnace slag, and 20% of granulated slag), and the reference materials utilized were a blast-furnace slag, crushed stone, and asphalt concrete. Through five series of truck tests, the data of performance such as deflection, cracking, and rutting were periodically collected and compared to evaluate relative performance. Moreover, for the purpose of generalizing the performance data observed, three theoretical procedures regarding structure analysis, fatigue prediction, and rutting prediction were proposed and examined through the observation data. This paper describes the performance data observed and discusses the applicability of the analytical methods proposed.
