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原文传递 Effects of Variable Tire Pressure on Road Surfacings. Volume 1: Design, Construction, Behavior under Traffic, and Test Results; Final rept

题名：	Effects of Variable Tire Pressure on Road Surfacings. Volume 1: Design, Construction, Behavior under Traffic, and Test Results; Final rept
作者：	Grau, R. W.
关键词：	Tires; Road tests; Pressure measurement; Pavements; Asphalt; Thickness; Inflating; Ground traffic; Deterioration; Construction
摘要：	The objective of this study was to determine the effects of variable tire pressure on road surfacings. A specially designed test road was constructed and subjected to both loaded and unloaded 18-wheeled log trucks operating in two distinct traffic lanes. The traffic was applied with the trucks operating at low- and high-tire pressures. This report presents the backgrounds, design, construction procedure, and discussion of the performance of the various items during traffic. The results show that (a) when failures occurred in both lanes of the same asphalt concrete item, the ratio of low-tire-pressure traffic to high-tire-pressure traffic ranged between 1.5 and 21, (b) considerable maintenance will be required on aggregate surfaced grades receiving high-tire-pressure unloaded traffic because of severe washboarding, (c) the installation of central tire inflation systems that allow a driver to adjust a vehicle's tire pressure while in motion will be cost-effective for heavy trucks traveling on low volume, low speed roads.
总页数：	152p
报告类型：	科技报告