CONCRETE EXPOSURE TESTS - PHASE 1

THIS IS A REPORT ON THE RESULTS OBTAINED ON 15 TEST SLABS OF PORTLAND CEMENT CONCRETE, SUBJECTED TO OUTDOOR FREEZING AND THAWING WITH SODIUM CHLORIDE AND CALCIUM CHLORIDE. THE PURPOSES OF THESE TESTS WERE /A/ TO DETERMINE THE COMPARATIVE QUALITIES OF THREE WETTING AGENTS IN PRODUCING HIGH COMPRESSIVE STRENGTH, /B/ TO ASSAY THE VALUE OF SURFACE SEALANTS PRESENTLY IN USE BY THE NEW YORK STATE THRUWAY AUTHORITY, /C/ TO OBTAIN A COMPARATIVE VIEW OF WET CURING VERSUS AIR CURING, AND /D/ TO DETERMINE THE SPALL INHIBITING QUALITIES OF EXPANDED SHALE WHEN USED AS A FINE AGGREGATE. RECORDS ON THE SLABS INCLUDE SLUMP TESTS AND AIR-ENTRAINMENT TESTS ON EACH MIX, DAILY TEMPERATURE READINGS AND OBSERVED FREEZE-THAW CYCLES, MONTHLY PHOTOGRAPHS, AND THE WEIGHT OF EACH SLAB ON THE FIRST DAY OF EXPOSURE AND THE FINAL DAY OF THE TESTING PHASE. THE RESULTS OF ONE WINTER OF EXPOSURE ARE PRESENTED. THE SLABS HAVE BEEN EXPOSED TO NORMAL WEATHERING SINCE JUNE 1963 AND REMAINED SO UNTIL THE FALL OF 1963, WHEN PHASE TWO OF THE DE-ICING SALTS APPLICATION BEGAN. IT IS PLANNED TO TEST TO DESTRUCTION. THE MORE PROMISING MIXES AND COATINGS ARE NOW BEING TRIED IN THE REPAIRS OF STRUCTURES SO THAT THEIR USE CAN BE EVALUATED UNDER ACTUAL FIELD CONDITIONS. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1964/62/62-001.pdf
• Supplemental Notes:
  • 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.
• Authors:
  • Lang, Conrad H
  • Walsh, Robert J
• Publication Date: 1964

Media Info

• Media Type: Print
• Features: Tables;
• Pagination: pp 1-6
• Monograph Title: Research on aggregate, cement, concrete and epoxy bonding
• Serial:
  • Highway Research Record
  • Issue Number: 62
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Air entrainment; Alternatives analysis; Calcium chloride; Compressive strength; Concrete; Concrete curing; Concrete tests; Consistency; Crash exposure; Curing agents; Evaluation; Expanded shale aggregates; Fine aggregates; Freeze thaw tests; Portland cement concrete; Sealing compounds; Slabs; Sodium chloride; Specimens; Surface treating; Temperature; Wetting agents
• Identifier Terms: New York State Thruway
• Uncontrolled Terms: Comparative analysis; Exposure
• Old TRIS Terms: Spall inhibition
• Subject Areas: Highways; Materials; Safety and Human Factors;

Filing Info

• Accession Number: 00211951
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 3 1994 12:00AM