Experimental Paving Projects using Curtiss-Wright’s Coal-Modified, Coal-Tar Binder (First Year Performance)

This report has been prepared as a sequence to the author\u27s publication entitled, Experimental Paving Projects using Curtiss-Wright\u27s Coal-Modified, Coal-Tar Binder (Construction Phase). The previous study was concerned with the selection of test sites, the construction of the test and control sections, and the laboratory investigation performed before and d uring the construction period. This project started in April, 1959, when the Curtiss-Wright Corporation announced the development of a new and superior road-paving binder utilizing bituminous coal. The development was the result of their research program conducted in an effort to find new uses for coal and coal products

A Study of Lime and Fly Ash with Regard to Soil Stabilization

The paving of roadways originally developed from the inadequacy of natural soils to support vehicles and pedestrian traffic. Thus a pavement serves as a nearly rigid covering which distributes otherwise highly concentrated surface loads over wider areas of the underlying soils, Most natural soils are deficient for direct roadway service unless such a covering is provided or unless the soil itself is solidified, concreted, or otherwise reinforced, Attempts to compensate soils for these inadequacies in order to minimize the thickness of pavement needed have developed into a specialized aspect of highway design and construction known as soil stabilization