INVESTIGATION INTO THE DIFFERENT BEHAVIOR OF SILICIC AND CALCAREOUS AGGREGATES IN MIXES WITH REGARD TO THE MINERALOGICAL COMPOSITION OF THE CEMENT

TESTS ON CEMENTS WITH DIFFERENT TRICALCIUM ALUMINATE CONTENT LEVELS CORROBORATED THE HYPOTHESIS THAT IN CONCRETE MADE WITH HIGH TRICALCIUM ALUMINATE CONTENT CEMENT, LIMESTONES ACTS AS MORE THAN SIMPLE AGGREGATE, CONTRIBUTING POSITIVELY TO THE PROCESS RESPONSIBLE FOR THE MECHANICAL STRENGTH BY CAUSING, THROUGH THE FORMATION OF CARBON CARBOALUMINATES, EPITAXIC TOPOCHEMICAL BONDS WHICH ASSIST MECHANICALLY ANCHORING PHYSICAL BONDS. THE INFLUENCE OF THE CALCAREOUS AND SILICIC MATERIAL IN CEMENT MORTAR SPECIMENS IS EXAMINED AND SUBMITTED TO EXTERNAL (5% SOLUTION OF MAGNESIUM SULFATE) AND INTERNAL AGGRESSION (ANSTETT'S TEST). IN THE PRESENCE OF AN EXTERNAL AGGRESSIVE AGENT, AND ESPECIALLY AFTER A LONG PERIOD, IT WAS FOUND THAT LIMESTONE WAS BETTER THAN SILICA WITH BOTH HIGH TRICALCIUM ALUMINATE AND TETRACALCIUM ALUMINOFERRITE CONTENT CEMENTS.

• Corporate Authors:

  Cemento /Italy

  ,    
• Authors:
  • Cussino, L
  • Pintor, G
• Publication Date: 1972-10

Media Info

• Pagination: p. 255-68
• Serial:
  • Publication of: Cemento /Italy/
  • Volume: 69
  • Issue Number: 4
  • Publisher: Cemento /Italy

Subject/Index Terms

• TRT Terms: Calcined aggregates; Cement content; Cement mortars; Hypothesis testing; Limestone aggregates; Minerals; Silica
• Uncontrolled Terms: Hypothesis
• Old TRIS Terms: Calcareous aggregates; Calcium effects /aggregate formation/
• Subject Areas: Data and Information Technology; Highways; Materials;

Filing Info

• Accession Number: 00214242
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 19 1973 12:00AM