THE LOAD TRANSMISSION TEST FOR FLEXIBLE PAVING AND BASE COURSES PART Ⅰ A DESCRIPTION OF THE TESTING APPARATUS, OPERATING METHODS. AND ANTICIPATED USES OF TEST DATA

摘要

The authors discuss briefly the present status of flexible paving design and describe a special testing rig which has been built for the purpose of furnishing some of the basic information necessary for a more accurate and rational approach to this problem. The apparatus consists essentially of a mechanical subgrade ten feet square, with provisions for constructing a pavement test Section upon the subgrade, loading the pavement section through single or multiple rigid plates or tires, and measuring the vertical stress dis¬tribution on the subgrade. Results will be used for studying the effects of subgrade strength, pavement strength pavement thick¬ness, type of loading medium, size of loaded area, and multiple loadings.