Abstract:
THE REQUIREMENTS OF A GRADED SOIL TYPE SURFACE AND BASE COURSE ARE: STABILITY, TRAFFIC ABRASION, IMPERVIOUSNESS TO RAIN WATER, AND CAPILLARY PROPERTIES. A HIGH DENSITY IS NECESSARY WHERE GRANULAR MATERIALS ARE TO BE USED AS SURFACE COURSES; DENSITY IS NOT IMPORTANT IN BASE COURSE CONSTRUCTION EXCEPT AS A MEASURE OF STABILITY. SEPARATE SPECIFICATIONS WERE ADOPTED BY A.A.S.H.O. FOR BOTH SURFACE COURSES (M-61-38) AND BASE COURSES (M-56-38).
Supplemental Notes:
Vol 18, ParT II, PP 206 - 208. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.