SIMPLIFIED DESCRIPTION OF CREEP SURFACE FOR A PORTLAND CEMENT MORTAR
THIS STUDY ANALYZES CREEP OF PLAIN PORTLAND CEMENT MORTAR UNDER UNIFORM COMPRESSIVE STRESS FROM A PHENOMENOLOGICAL VIEWPOINT WITH THE OBJECTIVE OF OBTAINING AN ALTERNATE FORM OF THE STRAIN-STRESS-TIME RELATIONSHIP TO THAT OBTAINED FROM VISCO-ELASTIC ANALYSIS. THE AIM IS TO OBTAIN RELATIONSHIPS WHICH ARE MORE USABLE THAN THE EXPRESSIONS OBTAINED FROM THE ANALYSIS OF THE RHEOLOGICAL MODELS. THE TECHNIQUES OF DIMENSIONAL ANALYSIS ARE USED TO ORGANIZE AN EXPERIMENTAL PROGRAM AND TO DETERMINE THE FORM OF THE EXPRESSION DESCRIBING THE STRAIN-STRESS-TIME SURFACE. A SUITABLE LEAST SQUARES METHOD IS USED IN THE NUMERICAL EVALUATION OF PARAMETERS IN THE EQUATION OF THE SURFACE, AND SOME CONCLUSIONS ARE DRAWN REGARDING THE VALIDITY OF THE RESULTS. A COMPARISON OF THE SIMPLIFIED EQUATION OF THE CREEP SURFACE WITH THE RESULTS OBTAINED FROM VISCO-ELASTIC ANALYSES SHOWS THAT THE ALTERNATE FORM FOR THE SURFACE IS INDEED SIMPLER AND THEREFORE MORE USABLE THAN THE RESULTS OBTAINED FROM THE ANALYSIS OF RHEOLOGICAL MODELS. IN THIS REGARD, THE OBJECTIVE OF THIS INVESTIGATION HAS BEEN MET. /AUTHOR/
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Supplemental Notes:
- Vol 65, No 6, PP 470-476, 6 FIG, 1 TAB, 8 REF
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Authors:
- Tulin, L G
- Publication Date: 1968-6
Media Info
Subject/Index Terms
- TRT Terms: Cement mortars; Compression; Creep; Deformation curve; Dimensional analysis; Least squares method; Portland cement; Rheology; Stresses; Time; Viscoelasticity
- Old TRIS Terms: Test results
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00213209
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 19 1994 12:00AM