00211527

Component

https://onlinepubs.trb.or...hrbproceedings/6/6-046.pdf

THE SUBJECT OF LABORATORY INVESTIGATIONS OF ASPHALT PAVING MIXTURES EMPHASIZE PAVEMENT CONSTRUCTION DETAILS, PARTICULARLY AS TO OBTAINING THE BEST PRACTICABLE COMPRESSION OF THE MIXTURE AND UNIFORMITY OF CONTOUR. THE IMPORTANCE IS EMPHASIZED OF CONTROLLING CONSTRUCTION DETAILS. FIELD TESTS SHOULD BE UNDERTAKEN TO SECURE DEFINITE DATA ON CONSTRUCTION DETAILS, PARTICULARLY ON COMPACTION. THE EFFICIENCY OF OPERATION CAN BE DETERMINED BY DENSITY TESTS ON SAMPLES OF THE PAVEMENT TAKEN DURING AND IMMEDIATELY AFTER COMPACTION BY DETERMINING: (1) RELATIVE EFFICIENCY OF A 10 TON 3-WHEEL ROLLER, A 10 TON TANDEM ROLLER, AND A 4 TOM TANDEM ROLLER OPERATING FOR A GIVEN PERIOD ON A GIVEN MIXTURE WITH A GIVEN INITIAL TEMPERATURE, (2) TIME EFFICIENCY OF A 10 TON 3-WHEEL AND A 10 TON TANDEM ROLLER OPERATED CONTINUOUSLY OVER A GIVEN MIXTURE WITH A GIVEN INITIAL TEMPERATURE, TESTS TO BE MADE AT REGULAR INTERVALS UNTIL THE MIXTURE HAS COOLED TO APPROXIMATELY ATMOSPHERIC TEMPERATURE, (3) EFFECTIVE TEMPERATURE OF MIX UPON EFFICIENTY OF ROLLING WITH A 10 TON 3-WHEEL ROLLER AND A 10 TON TANDEM ROLLER, ROLLING TO BE CONDUCTED FOR SPECIFIED INTERMITTANT PERIODS DURING COOLING AND (4) EFFICIENCY OF TAMPING ROLLER AS COMPARED WITH THE USUAL 3- WHEEL AND TANDEM ROLLERS ON THE SAME MIXTURE WITH DIFFERENT INITIAL TEMPERATURES. GENERAL USE IS SUGGESTED OF A SIMPLE CONTOUR TESTING DEVICE SUCH AS THAT ADOPTED BY THE OHIO STATE HIGHWAY COMMISSION AND KNOWN AS THE BUMPOMETER. DETAILED INFORMATION SHOULD BE SECURED RELATIVE TO THE MIXING OPERATION FOR DIFFERENT TYPES OF FINE AGGREGATE MIXTURES AS AFFECTED BY TEMPERATURE OF THE MIX, TIME OF MIXING AND SIZE OF BATCH FOR THE USUAL MIX OF A GIVEN RATED CAPACITY. IT APPEARS THAT SOME FINE SANDS WHICH ARE UNSATISFACTORY FOR USE WITH THE ORDINARY FILLER MAY BE MADE TO PRODUCE SATISFACTORY MIXTURES IF COMBINED WITH A MUCH FINER FILLER THAN HAS BEEN CUSTOMARILY USED.

Vol 6, pp 260-264. 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.

01488025

Hubbard, P

1927

Highway Research Board Proceedings

Digital/other

Asphalt pavements; Bituminous materials; Contours; Density; Field tests; Fillers (Materials); Fine aggregates; Measurement; Mix design; Mixtures; Paving; Rolling; Sand; Temperature

Highways; Materials

TRIS, TRB

Jul 2 1971 12:00AM

• A COMPARISON OF ROAD CONDITIONS WITH ATTERBERG'S LIMITS AND THE OTHER STANDARD SOIL TESTS
• A STUDY OF THE MOISTURE CONTENT OF OHIO SOILS
• ADDRESS ON THE HIGHWAY AND THE LABORATORY
• ANALYSIS OF STRESSES IN CONCRETE PAVEMENTS DUE TO VARIATIONS OF TEMPERATURE
• BITUMINOUS MATERIALS FOR SURFACE TREATMENT
• BRIEF REVIEW OF ALKALI ACTION ON PORTLAND CEMENT CONCRETE
• COLLECTION AND DISPOSITION OF MOTOR VEHICLE REVENUES
• CONCRETE AND CONCRETE AGGREGATES
• DISCUSSION OF PAPER ON THE METHODS AND POSSIBILITIES OF ROAD-SOIL INVESTIGATIONS
• DISCUSSION OF PROGRESS REPORT ON CULVERT INVESTIGATION
• DISCUSSION OF PROGRESS REPORT ON LOWCOST IMPROVED ROADS INVESTIGATION
• DISCUSSION OF REPORT OF COMMITTEE ON CHARACTER AND USE OF ROAD MATERIALS. I. CONCRETE MATERIALS
• DISCUSSION OF REPORT OF COMMITTEE ON ECONOMIC THEORY OF HIGHWAY IMPROVEMENT
• DISCUSSION OF REPORT OF COMMITTEE ON HIGHWAY FINANCE
• DISCUSSION OF REPORT OF COMMITTEE ON HIGHWAY TRAFFIC ANALYSIS
• DISCUSSION OF REPORT OF COMMITTEE ON MAINTENANCE
• DISCUSSION OF REPORT OF COMMITTEE ON STRUCTURAL DESIGN OF ROADS
• EXTRACT FROM REPORT ON VIRGINIA FEDERAL AID PROJECT 371-C
• FIELD CONTROL OF CONCRETE MAKING-A STUDY OF LATE PRACTICE
• FILL SETTLEMENT IN PEAT MARSHES
• IMPACT FORCES EXERTED BY THE MOTOR TRUCK ON THE HIGHWAY
• INVESTIGATIONS OF AIR RESISTANCE ON AUTOMOBILES
• INVESTIGATIONS OF ASPHALTIC PAVING MIXTURES RELATIVE TO DEFORMATION OF SURFACES UNDER TRAFFIC
• PAPER ON THE METHODS AND POSSIBILITIES OF ROAD-SOIL INVEST- IGATIONS
• PAVEMENT DISPLACEMENT DUE TO WATER AND FROST
• PROGRESS REPORT ON A FIELD EXPERIMENT ON INTRODUCTION OF PLANES OF WEAKNESS IN CONCRETE SLABS
• PROGRESS REPORT ON CULVERT INVESTIGATION
• PROGRESS REPORT ON LOW-COST IMPROVED ROADS INVESTIGATION
• PROGRESS REPORT ON THE EXPERIMENTAL CURING SLABS AT ARLINGTON, VIRGINIA
• PROGRESS REPORT ON TIRE WEAR INVESTIGATION
• REPORT OF COMMITTEE ON HIGHWAY TRAFFIC ANALYSIS
• REPORT OF COMMITTEE ON MAINTENANCE. I. MAINTENANCE OF CONCRETE PAVEMENTS
• REPORT OF COMMITTEE ON MAINTENANCE. II-SNOW REMOVAL AND SNOW REMOVAL EQUIPMENT
• REPORT OF COMMITTEE ON MAINTENANCE. III-COVERING FOR POORLY CONSTRUCTED AND DISINTEGRATING CONCRETE ROADS
• REPORT OF COMMITTEE ON MAINTENANCE. IV-ANNUAL REDUCTION THICKNESS OF GRAVEL ROADS UNDER DIFFERENT TRAFFIC AND EFFECT OF DUST PALLIATIVES
• REPORT OF COMMITTEE ON MAINTENANCE: V. MAINTENANCE COSTS AS AFFECTED BY THE TYPE OF PAVEMENT AND AMOUNT OF TRAFFIC
• REPORT OF DIRECTOR
• REPORT ON FORMATION OF SPECIAL COMMITTEE ON CAUSES AND PREVENTION OF HIGHWAY ACCIDENTS
• SOME PRINCIPLES INVOLVED IN BITUMINOUS MACADAM CONSTRUCTION
• SUB-BASE TESTS ON ROUTE 26, WASHINGTON COUNTY, OHIO
• SUBGRADE MATERIALS AND TESTS
• SUBGRADE STUDIES OF THE U.S. BUREAU OF PUBLIC ROADS
• THE NORTH CAROLINA ROAD TEST TRUCK
• THE SLAKING TEST
• THINNER PAVING BRICK
• TIRE WEAR INVESTIGATION