CORRELATIONS OF LABORATORY AND FIELD DATA
THE POSSIBILITY OF INCREASING COMPACTIVE EFFORTS IN LABORATORY TESTS WAS INVESTIGATED TO OBTAIN DENSITIES APPROXIMATING THOSE ATTAINED UNDER TRAFFIC, SUCH THAT THE LOWER OPTIMUM ASPHALT CONTENT WOULD PROVIDE A PAVEMENT DESIGN WHICH WOULD NOT HAVE AN EXCESS OF ASPHALT AS A RESULT OF COMPACTION AT ANY TIME DURING THE LIFE OF THE PAVEMENT. A NUMBER OF DIFFERENT COMPACTIVE EFFORTS WERE USED IN ESTABLISHING THE PROPER EFFORT TO BE USED IN PREPARING LABORATORY SPECIMENS FOR THE DESIGN AND CONSTRUCTION CONTROL OF ASPHALT PAVEMENTS. BASED ON THE RESULTS OF THESE ANALYSES AND INVESTIGATIONS, THE FOLLOWING CONCLUSIONS WERE MADE: (1) THE LABORATORY COMPACTIVE EFFORT FOR USE IN DESIGN OF ASPHALT PAVING MIXTURES SHOULD CONSIST OF 50 BLOWS ON EACH SIDE OF THE SPECIMEN, USING A 10-LB. HAMMER WITH 18 IN. DROP AND A 3-7/8-IN. DIAMETER FOOT. (2) GOOD CONSTRUCTION ROLLING CAN BE CONSIDERED THAT EFFORT WHICH PRODUCES A DENSITY IN THE ASPHALT PAVEMENT EQUAL TO 98 PERCENT OF THAT SECURED BY THE 50-BLOW LABORATORY COMPACTION. /AUTHOR/
- Record URL:
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Corporate Authors:
U.S. Army Corps of Engineers
441 G Street, N.W.
Washington, DC United States 20314 -
Authors:
- Shockley, W G
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Conference:
- 28th Annual Meeting of the Highway Research Board
- Location: Washington District of Columbia, United States
- Date: 1948-1-0 to 1948-1-0
- Publication Date: 1949-6
Media Info
- Media Type: Digital/other
- Features: Figures; Tables;
- Pagination: 12p
- Monograph Title: Symposium On Asphalt Paving Mixtures
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Serial:
- Highway Research Board Research Reports
- Issue Number: 7B
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Asphalt content; Asphalt pavements; Bituminous mixtures; Compaction; Laboratory tests; Paving materials; Soil compaction test
- Old TRIS Terms: Compaction tests; Paving mixtures
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00211716
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: May 22 1972 12:00AM