Abstract:
PROGRESS REPORTS ARE MADE ON A CONDITION SURVEY AND STUDY OF THE COMPOSITION OF BITUMINOUS SURFACES; A STUDY OF THE EFFECTS OF ROAD ROLLERS ON AGGREGATES IN PLACE IN COMPARISON WITH THE LOS ANGELES RATTLER TEST; TWO TEST ROADS HAVING 28 DIFFERENT SECTIONS; A STUDY OF FREEZING AND THAWING, AND WETTING AND DRYING TESTS OF SOIL MIXTURES; FROST ACTION IN SOILS; TESTS OF SOILS; AND CHARACTERISTICS OF ROCK ASPHALT. A SIGNIFICANT OBSERVATION FROM THE SURVEY OF BITUMINOUS SURFACE TREATMENT IS THAT THERE WAS NOT ONLY A LARGE AMOUNT OF DEGRADATION OF AGGREGATES DURING CONSTRUCTION, BUT THAT THERE WAS A GRADUAL BREAKING DOWN OF THE AGGREGATE UNDER TRAFFIC. THERE APPEARED TO BE A DEFINITE RELATION BETWEEN THE RESULTS OF THE LOS ANGELES RATTLER TEST AND THE ACTION OF THE ROAD ROLLER ON THE AGGREGATES IN PLACE. /AUTHOR/
Supplemental Notes:
Vol 18, Pt 1, PP 255-263, 6 TAB. 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.