INTERPRETATION OF RESULTS OF CREEP EXPERIMENTS ON BITUMINOUS SAMPLES
INTERPRETATION DER ERGEBNISSE AUS KRIECHVERSUCHEN AN ASPHALTKOERPERN
A COMPARISON IS MADE OF TRACK DEPTHS DUE TO PLASTIC DEFORMATION OF BITUMINOUS LAYERS UNDER TRAFFIC AND THE DEFORMATION BEHAVIOUR OF THE RELEVANT CORES IN CREEP TESTS. GOOD AGREEMENT CAN BE ESTABLISHED. FROM THE AVAILABLE DATA A SIMPLE BACKGROUND IS ESTABLISHED IN THE STANDARD CREEP TEST FOR ASSESSING THE DEFORMATION DUE TO CREEP OF CORES. THERE IS A COMPARISON BETWEEN CREEP DEFORMATION OF MARSHALL SPECIMENS AND CORES TAKEN FROM STRESSED AND UNSTRESSED ZONES. IT TRANSPIRES THAT THE TYPE OF COMPACTION AND THE LOAD HISTORY SHOW A FAIRLY DIFFERING DEFORMATION BEHAVIOUR. IT IS NOT ONLY DEPENDENT ON THE VOLUMETRIC PROPORTIONS OF THE THREE COMPONENTS SAND CHIPPINGS, MORTAR, AIR, BUT ALSO ON THE SPACE DISTRIBUTION OF THE THREE COMPONENTS AND WHETHER IT IS POSSIBLE TO FORM A LOAD BEARING "MINERAL SKELETON" UNDER LOAD. THIS IS DESCRIBED BY THE EXPRESSION "CONSOLIDATION". THE BEHAVIOUR OF CREEP CURVES IS DISCUSSED. IT IS POSSIBLE THEREFORE TO ASSESS THE DEFORMATION BEHAVIOUR OF A SPECIMEN AS BEING MORE "VISCOUS" OR MORE "ELASTOPLASTIC".
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Authors:
- Huschek, S
- Publication Date: 1977
Language
- German
Media Info
- Pagination: 233-58
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Serial:
- MITT INST ST EISENBAHN U FELSBAU ETH-Z 37
- Issue Number: 37
Subject/Index Terms
- TRT Terms: Behavior; Bituminous mixtures; Compaction; Core samples; Creep; Deformation; Evaluation; Loads; Marshall test; Samples; Standardization; Tests
- ITRD Terms: 9001: Behaviour; 4967: Bituminous mixture; 3686: Compaction; 5700: Core (boring); 4732: Creep (mater); 5595: Deformation; 9020: Evaluation (assessment); 5567: Load; 6290: Marshall; 6251: Sample (mater); 9075: Standardization; 6255: Test; TRACKING (WHEEL)
- Subject Areas: I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01289407
- Record Type: Publication
- Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
- Files: ITRD
- Created Date: Nov 21 2010 1:46AM