CREEP WITH SIMULTANEOUS SHRINKAGE IN HARDENED CEMENT PASTE /IN GERMAN/

A FORMULA IS PRESENTED GIVING THE RATE OF DEFORMATION AS A FUNCTION OF SHRINKAGE STRESS AND EXTERNAL STRESS. THE EXTERNAL STRESS IN THE EQUATION IS EXPRESSED BY A SUM. IF THE RATE OF DEFORMATION OF A NON-LOADED SPECIMEN IS USED TO ESTABLISH SHRINKAGE STRESS, THE CREEP IN A SPECIMEN DRYING UNDER LOAD CAN BE DETERMINED BY THE RELATION ESTABLISHED. MEASUREMENTS WERE CARRIED OUT ON HARDENED CEMENT PASTES WITH WATER/CEMENT RATIOS 0.3 AND 0.65 AND WERE COMPARED WITH THE THEORY. THE CONSTANTS DEPENDENT ON TIME WERE DETERMINED, BY USING EXPERIMENTAL RESULTS, FOR THE TWO WATER/CEMENT RATIOS, FOR TWO DIFFERENT LENGTHS OF TIME. THE INTERVENING SHRINKAGE STRESS WAS GIVEN AS A FUNCTION OF TEST DURATION. /RRL/LCPC/ A/

• Supplemental Notes:
  • Vol 5, No 3, PP 198-204, 12 FIG, 15 REF
• Corporate Authors:

  Rheolgica Acta, Munich /Germany

  ,    
• Authors:
  • Wittmann, F
• Publication Date: 1966

Subject/Index Terms

• TRT Terms: Cement; Creep; Deformation; Formulas; Pastes; Shrinkage; Stresses; Testing; Time; Water cement ratio
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00212761
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM