Study of D-Cracking in Portland Cement Concrete Pavement. Volume 4. PetrographicPhase and Final Report

摘要

This Petrographic Phase and Final Report addresses the make-up of the aggregatesand the void system of the cement paste matrix. The Volume 2 report derived its data from cores taken at various locations representing the pavements surveyed. Some of these cores from both the best and worst miles were designated for use in determining the void and aggregate properties, however, this report for the most part uses the data from the best mile cores. The locations of the pavements cored are given on the map of Figure 1. The statistics of the pavements cored are given in Table 1. This report is last in a series of four. The others in the series are: FHWA-KS-78-2 Volume I Field Phase (1), FHWA-KS-81-2 Volume II Laboratory and Repair Phase (7), FHWA-KS-78-2 Volume II Airphoto Phase (8).