FREEZING AND THAWING TESTS OF LIGHTWEIGHT AGGREGATE CONCRETE

NINE LIGHTWEIGHT AGGREGATES AND ONE NATURAL SAND AND GRAVEL AGGREGATE WERE USED IN CONCRETES SUBJECT TO LABORATORY FREEZING AND THAWING TESTS AND, IN SOME CASES, TO TESTS FOR RESISTANCE TO DE-ICER SCALING. CONCRETES WERE PREPARED AT TWO LEVELS OF COMPRESSIVE STRENGTH: 3000 PSI AND 4500 PSI AT 28 DAYS. BOTH NON-AIR-ENTRAINING AND AIR-ENTRAINED CONCRETES WERE PREPARED USING THE AGGREGATES IN AN AIR-DRIED CONDITION AND IN A 24-HR SATURATED CONDITION. THE RESULTS OF THESE TESTS INDICATE THE NECESSITY FOR PROVIDING INTENTIONALLY ENTRAINED AIR TO ATTAIN A HIGH LEVEL OF DURABILITY, THE IMPORTANCE OF MOISTURE CONTENT OF AGGREGATE, AND THE INFLUENCE OF STRENGTH LEVEL, I.E., WATER-CEMENT RATIO, ON THE DURABILITY. /PCA/

• Authors:
  • Klieger, P
  • Hanson, J A
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Air entrained concrete; Compressive strength; Concrete; Durability; Entrained air; Freeze thaw tests; Lightweight aggregates; Lightweight concrete; Moisture content; Water cement ratio
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213563
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 121
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM