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HIGH-STRENGTH LIGHTWEIGHT CONCRETE MADE OF POROUS AGGREGATES FROM INDUSTRIAL WASTE

AGLOPORITE, WHICH IS MANUFACTURED BY THE CONTACT SINTERING OF CLAY MATERIALS AND INDUSTRIAL WASTES ON SINTERING MACHINES, IS USED AS A LIGHTWEIGHT AGGREGATE FOR CONCRETE MIXES. AGLOPORITE HAS A RELATIVELY SIMPLE PRODUCTION FLOWSHEET AND IS ONE OF THE MOST EFFICIENT TYPES OF POROUS AGGREGATES. THE PRINCIPAL STARTING MATERIAL IS ZAGLIK ALUNITE. DURING PROCESSING, THE ORE YIELDS 50 PERCENT WASTE IN THE FORM OF SAND AND MUD FRACTIONS CONTAINING ABOUT 80 PERCENT SILICON OXIDE. A TRIAL BATCH OF AGLOPORITE POROUS AGGREGATES WAS OBTAINED AND A RESEARCH PROGRAM ON ITS MANUFACTURE WAS STARTED. THE PROPERTIES OF AGLOPORITE WERE STUDIED AND THE RESULTS ARE TABULATED. AGLOPORITE WAS USED IN THE MANUFACTURE OF STRUCTURAL LIGHTWEIGHT CONCRETES OF STRENGTH EQUAL TO OR GREATER THAN 400 KG PER SQUARE CENTIMETER. FOR CONCRETES OF BRAND 300 AND 400, CONSUMPTION OF BRAND-400 CEMENT DOES NOT EXCEED 400 AND 500 KG PER CUBIC METER OF CONCRETE MIX, RESPECTIVELY. FOR CONSTRUCTIONAL AGLOPORITE CONCRETE, THE DESIGNERS SUGGEST THE FOLLOWING PARTICLE-SIZE DISTRIBUTION AGGREGATE: SAND, 33-35 PERCENT; CRUSHED MATERIALS OF SIZE 50-10 MM, FROM 20 TO 25 PERCENT BY VOLUME; CRUSHED MATERIALS OF SIZE 10-20 MM, FROM 35 TO 40 PERCENT BY VOLUME. THE SPECIFIC WEIGHT OF THE CONCRETE AND THE SELECTION OF THE COMPOSITION FOR THE MIX OF HIGH STRENGTH AGLOPORITE CONCRETE IS DISCUSSED. RECENT STUDIES INDICATE THE POSSIBIL- ITY OF FURTHER REDUCING THE BULK WEIGHT OF AGGREGATE WITHOUT REDUCING ITS STRENGTH.

  • Corporate Authors:

    N/A

    ,   United States 
  • Publication Date: 1969-12

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  • Accession Number: 00214222
  • Record Type: Publication
  • Report/Paper Numbers: No 10-12
  • Files: TRIS
  • Created Date: Dec 11 2003 12:00AM