00217815

Component

https://onlinepubs.trb.or...hrbproceedings/4/4-014.pdf

RESEARCH CONDUCTED ON THE PROBLEMS OF PROPORTIONING MIXTURES AND GRADING OF AGGREGATES IS REVIEWED. IT HAS BEEN DETERMINED THAT THE STRENGTH OF PORTLAND CEMENT CONCRETE VARIES WITH THE AMOUNT OF ACTUAL SOLID MATERIAL PRESENT IN A GIVEN VOLUME, WITH THE RELATIVE PARTS OF THIS VOLUME THAT ARE CEMENT AND AGGREGATE. THE COMMITTEE CONSIDERS THERE IS MERIT IN THIS METHOD OF PORTIONING, SINCE IT MAY ULTIMATELY ELIMINATE MANY OF THE VARIABLES WHICH HAVE BEEN DETERMINED IN CONCRETE STRENGTHS, PROBABLY RESULTING IN SOME MEASURE FROM INACCURATE VOLUMETRIC PROPORTIONING.

Vol 4, pp 117-127, 9 FIG, 16 REF. 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.

00242998

1925

Highway Research Board Proceedings

Digital/other

Aggregate gradation; Aggregate mixtures; Cement content; Concrete aggregates; Portland cement concrete; Proportioning

Geotechnology; Highways

TRIS, TRB

Nov 9 1970 12:00AM

• ABSORPTION OF CONCRETE IN WATER AS AFFECTED BY AGGREGATES - ITS ULTIMATE EFFECT IN EXPANSION OF ROAD SLABS
• DECREASED STRENGTH OF CONCRETE WHEN WET
• EFFECT OF GRADING OF MINERAL AGGREGATES IN SHEET ASPHALT AND BITUMINOUS CONCRETE CONSTRUCTION RELATIVE TO DEFORMATION OF SURFACES UNDER TRAFFIC
• FATIGUE OF CONCRETE
• IMPACT AND STATIC LOADS ON ROAD SLABS
• INVESTIGATION OF MOTOR TRUCK IMPACT
• INVESTIGATION OF TIRE WEAR
• PROGRESS REPORT ON SPECIAL INVESTIGATION ON THE ECONOMIC VALUE OF STEEL REINFORCEMENT IN CONCRETE ROAD SURFACES
• RECOVERING BITUMINOUS MATERIAL FROM AGGREGATES WITHOUT CHANGING ITS CHARACTER
• REPORT OF COMMITTEE ON HIGHWAY FINANCE
• REPORT OF COMMITTEE ON HIGHWAY TRAFFIC ANALYSIS
• REPORT OF DIRECTOR
• SAND-CLAY ROAD INVESTIGATIONS
• SIGNIFICANCE OF THE TALBOT-JONES RATTLER AS TEST FOR CONCRETE IN ROAD SLABS
• SKEW ARCH INVESTIGATIONS
• SOUNDNESS TEST FOR COARSE AGGREGATES
• THEORY OF STRESSES IN ROAD SLABS
• TRAFFIC STRESSES PRODUCED IN CONCRETE ROADS
• WHAT SUBGRADE INVESTIGATIONS HAVE SHOWN DURING THE PAST YEAR
• WIND RESISTANCE OF MOTOR VEHICLES