00213730

Component

https://onlinepubs.trb.or...hrbproceedings/6/6-023.pdf

THE SULFATES OF SODIUM AND MAGNESIUM, USUALLY IN COMBINATION, ARE THE TWO SALTS OF MOST COMMON OCCURRENCE DELETERIOUS TO CONCRETE. IT MAY BE ASSUMED THAT IT IS THE PHYSICAL RESULT OF THE CHEMICAL ACTION OF ONE OR BOTH OF THESE SULFATES, AND POSSIBLY TO SOME EXTENT CALCIUM SULFATE AND SOME OF THE CHLORIDES, THAT IS MEANT WHEN REFERENCE IS MADE TO ALKALI ACTION ON CONCRETE. INVESTIGATIONS CONDUCTED UP TO THE PRESENT DATE ARE REVIEWED. THESE INVESTIGATIONS REVEAL THAT CAREFULLY MADE LONG-TIME CURED CONCRETE, VERY RICH IN CEMENT AND OF HIGH COMPRESSIVE STRENGTH AND LOW PERMEABILITY BEST RESIST THE ACTION OF ALKALI. ADMIXTURES, AS A RULE, HAVE NOT PROVEN BENEFICIAL. SURFACE COATINGS APPARENTLY HAVE SOME POSSIBILITIES. A CONSIDERABLE DIFFERENCE IN RESISTANCE AMONG PORTLAND CEMENTS WAS NOTED.

Vol 6, pp 223-229. 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

1927

Highway Research Board Proceedings

Digital/other

Admixtures; Alkali; Calcium compounds; Chemical reactions; Chlorides; Coatings; Compressive strength; Concrete; Durability; Magnesium compounds; Permeability; Portland cement concrete; Reviews; Sodium sulfate; Sulfates; Surfaces

Highways; Materials

TRIS, TRB

Jun 11 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
• 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 CHARACTER AND USE OF ROAD MATERIALS. II. BITUMINOUS 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