00213722

Component

https://onlinepubs.trb.or...hrbproceedings/8/8-002.pdf

OBSERVATIONS AND TESTS WERE MADE TO LEARN MORE OF THE PROCESS OF MIXING OF CONCRETE AND TO FIND THE CHARACTERISTICS OF MIXERS AND THE EFFECT OF FEATURES OF DESIGN AND OPERATION UPON THE QUALITY OF THE PRODUCT. THE NEED OF FURTHER RESEARCH AND OF ENCOURAGEMENT OF INTEREST IN THIS FIELD AND THE NEED FOR ENGINEERS TO LEARN MORE ABOUT MIXING IS EMPHASIZED. BETTER SPECIFICATIONS FOR MAKING CONCRETE ARE SOUGHT. MIXING WAS DISCUSSED AS TO THE ACTION OF INTERMINGLING, INTIMATE MIXING, CHARGING AND DISCHARGING; ALSO, METHOD OF APPLYING WATER, TIME OF MIXING, AND SPEED OF ROTATION. COMMENTS ARE MADE OI THE DIMENSIONS AND VOLUME OF DRUM AND DRUM CAPACITY, EFFECT OF CONDITION OF INTERIOR OF DRUM, AND STANDARD METHOD OF TESTING CONCRETE. DISCUSSION WAS PRIMARILY RELATED TO THE MEASURING OF MIXING WATER, MIXING APPLIANCES, AND MIXING TIME.

Vol 8, pp 34-47. 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.

01490390

Myers, B

1929

Highway Research Board Proceedings

Digital/other

Concrete mixing; Mix design; Mixers; Mixing; Quality control; Rotation; Specifications; Speed; Testing; Time; Water

Observation; Quality

Highways; Materials

TRIS, TRB

Jul 18 1971 12:00AM

• AIR RESISTANCE OF AUTOMOBILES
• APPLICATION OF PRESENT KNOWLEDGE IN THE CONSTRUCTION AND MAINTENANCE OF BITUMINOUS MACADAM AND BITUMINOUS CONCRETE
• CONCRETE PAVEMENT MAINTENANCE
• CONTRACTION AND EXPANSION JOINTS
• DESIGN OF THE CROSS-SECTION
• DISTRIBUTION OF WHEEL LOADS THROUGH VARIOUS RUBBER TIRES
• FINANCING A STATE ROAD SYSTEM WITH BONDS
• FURTHER STUDY OF FILL SETTLEMENT IN PEAT MARSHES
• MAINTENANCE COSTS AS AFFECTED BY TYPE OF PAVEMENT AND AMOUNT OF TRAFFIC
• MARYLAND AERIAL SURVEY OF HIGHWAY TRAFFIC BETWEEN BALTIMORE AND WASHINGTON
• METHODS FOR CONSTRUCTING SMOOTH RIDING BITUMINOUS SURFACES
• REPORT OF COMMITTEE ON ECONOMIC THEORY OF HIGHWAY IMPROVEMENT
• REPORT OF COMMITTEE ON HIGHWAY FINANCE
• REPORT OF COMMITTEE ON HIGHWAY TRAFFIC ANALYSIS
• REPORT OF COMMITTEE ON MAINTENANCE
• REPORT ON GUARD FENCE RESEARCH
• RESEARCH
• SPACING OF DOWELS
• STEEL REINFORCEMENT IN CONCRETE PAVEMENTS
• THE BITUMINOUS SURFACE TREATMENT OF ROADS AND PAVEMENTS
• THE CONTROL OF CRACKING IN RIGID PAVEMENTS
• THE NORTH CAROLINA TIRE TESTER
• THE PAY-AS-YOU-GO PLAN OF HIGHWAY FINANCING
• THE PERSONAL FACTOR IN HIGHWAY ACCIDENTS
• TRAFFIC SURVEYS, AND THEIR BEARING ON THE FINANCING OF ROAD BUILDING PROGRAMS
• USE OF EXCESS FINE AGGREGATE IN CONCRETE PAVEMENTS
• WHEEL LOAD AND IMPACT IN PAVEMENT DESIGN