United States Department of Transportation
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners.
As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
[PDF-588.62 KB]
Details:
-
Creators:
-
Corporate Creators:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:A study was made of the practice of "scratching" the surface course of several new construction projects in Virginia. It was found that sections with the surface course placed in one lift produced a road roughness value of about 3 in./mile higher than comparable sections which had the surface course split. Conversely, the single lift surface course sections had almost 2% average lower void contents than the scratched sections. It is concluded that the better riding quality cannot be justified economically when the decrease in durability caused by the lower density is considered.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
