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Title: USE OF WATER-REDUCING, RETARDING AND WATER-REDUCING AND RETARDING ADMIXTURES IN HIGHWAY CONCRETE
Accession Number: 00213320
Record Type: Monograph
Abstract: THE USE IN HIGHWAY CONSTRUCTION OF CHEMICAL ADMIXTURES IS REPORTED. THESE ADMIXTURES ARE USED TO MODIFY THE PROPERTIES OF FRESH AND HARDENED CONCRETE, SUCH AS TO INCREASE FLUIDITY AND WORKING QUALITIES OF A GIVEN MIXTURE WITHOUT INCREASE IN WATER CONTENT, DELAY SETTING, INCREASE STRENGTH OR DECREASE THE COST. THE ADMIXTURES ARE CLASSIFIED CHEMICALLY AND THE EFFECTS ON FRESH AND HARDENED CONCRETE ARE PRESENTED. THE PROPERTIES OF FRESH CONCRETE MOST AFFECTED ARE SLUMP, AIR CONTENT, WATER REQUIREMENT, BLEEDING OR SEDIMENTATION, AND HARDENING RATE. THE PROPERTIES OF HARDENED CONCRETE AFFECTED ARE FLEXURAL AND COMPRESSIVE STRENGTH, DRYING SHRINKAGE, RESISTANCE TO FREEZING AND THAWING, CREEP, AND MODULUS OF ELASTICITY. IN ADDITION, APPLICATIONS, FACTORS AFFECTING PERFORMANCE, TESTING METHODS, DISPENSING EQUIPMENT, STORAGE, AND QUALITY CONTROL ARE DISCUSSED.
Supplemental Notes: No 22, 13 PP, 11 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.
Publication Date: 1966-5
Serial: Media Type: Digital/other
TRT Terms:
Admixtures; Air content; Applications; Bleeding; Chemicals; Compressive strength; Concrete; Concrete hardening; Consistency; Creep; Equipment; Flexural strength; Freeze thaw durability; Hardness; Modulus of elasticity; Moisture content; Performance; Physical properties; Polymer concrete; Retarders (Chemistry); Road construction; Shrinkage; Test procedures; Viscosity; Water; Water consumption; Water reducing agents
Uncontrolled Terms: Old TRIS Terms: Subject Areas: Highways; Materials; Research
Files: TRIS, TRB
Created Date: Feb 10 1994 12:00AM
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