FACTORS AFFECTING DURABILITY OF CONCRETE SURFACES

A LABORATORY RESEARCH PROGRAM ON ABRASION RESISTANCE OF CONCRETE, INCLUDING THE DEVELOPMENT OF AN IMPACT-TYPE TEST METHOD FOR ABRASION TESTING OF CORE SPECIMENS, IS DESCRIBED. VARIABLES WERE SLUMP, FINISHING, CURING, SURFACE TREATMENTS (LINSEED OIL AND MONOMOLECULAR FILM), AND THE USE OF ADMIXTURES. SAND WITH A LOW MORTAR STRENGTH WAS SUBSTITUTED FOR THE LABORATORY STOCK SAND IN TWO TESTS. IN ADDITION TO THE ABRASION TESTS ON CONCRETE CORES, HARDENED CONCRETE SPECIMENS WERE EXAMINED FOR AIR CONTENT AND VOID DISTRIBUTION BY THE LINEAR TRAVERSE METHOD. A BRIEF SUMMARY OF REPORTS BY OTHERS ON THE CAUSES AND PREVENTION OF CONCRETE WEARING SURFACE DETERIORATION IS ALSO PRESENTED. THE TEST SAMPLES WERE CORED FROM LABORATORY SLABS CONSTRUCTED TO SIMULATE SOME OF THE FIELD CONDITIONS AND OTHER FACTORS ENCOUNTERED IN PLACING, FINISHING, AND CURING OF CONCRETE BRIDGE DECKS AND PAVEMENT. ALTHOUGH THE DATA ARE LIMITED IN SCOPE, RELATIVE VALUES OF ABRASION LOSSES ARE ESTABLISHED AND ARE INDICATIVE OF WHAT MIGHT BE EXPECTED IN THE FIELD. RESULTS OF THESE TESTS SHOW THAT SLUMP, CURING, AND TIME OF FINSIHING ARE THE MOST IMPORTANT FACTORS AFFECTING THE ABRASION RESISTANCE OF CONCRETE SURFACES. CONCRETE RECEIVING AN APPLICATION OF A MONOMOLECULAR FILM TO RETARD EVAPORATION DURING THE FINISHING PERIOD SHOWED AN INCREASE IN ABRASION RESISTANCE. A TWO-COAT SURFACE TREAT- MENT OF LINSEED OIL, APPLIED WHEN THE CONCRETE HAD PARTIALLY DRIED, WAS FOUND TO INCREASE ABRASION RESISTANCE APPRECIABLY REGARDLESS OF OTHER VARIABLES. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1967/196/196-004.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Durability of Concrete--Physical Aspects and presented at the 46th Annual Meeting. 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:
  • Spellman, Donald L
  • Ames, Wallace A
• Publication Date: 1967

Media Info

• Media Type: Print
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: pp 41-56
• Monograph Title: Aggregates and concrete durability
• Serial:
  • Highway Research Record
  • Issue Number: 196
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Abrasion tests; Abrasions; Bridge decks; Concrete; Concrete curing; Concrete finishing; Concrete pavements; Core samples; Crash tests; Deterioration; Linseed oil; Monomers; Slump test; Specimens; Surface treating; Thin films; Wearing course (Pavements)
• Uncontrolled Terms: Slumps
• Old TRIS Terms: Cores; Monomolecular films; Resistance
• Subject Areas: Highways; Materials; Research;

Filing Info

• Accession Number: 00212328
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Feb 2 1994 12:00AM