MATHEMATICAL STARTING POINTS FOR THE CALCULATION OF QUANTITIES DEPENDENT ON COMPACTION

MATHEMATISCHE ANSAETZE ZUR BERECHNUNG VERDICHTUNGSABHAENGIGER GROESSEN

THE COMPACTION-RELATED QUANTITIES SUCH AS VOIDS CONTENT, DEGREE OF COMPACTION, STABILITY AND FLOW VALUE CAN BE DETERMINED BY MEANS OF EXPONENTIAL REGRESSION EQUATIONS. THE QUESTION IS RAISED AS TO HOW THE PARAMETERS BINDER CONTENT, PARTICLE COMPOSITION, TEMPERATURE ETC. AFFECT THE FACTORS OF THE EXPONENTIAL EQUATIONS. MARSHALL TESTS ARE NEEDED, IN WHICH ONE PARAMETER IS ALTERED WHILE THE OTHERS ARE KEPT CONSTANT. RESULTS WOULD NEED TO BE STUDIED BY MEANS OF STATISTICAL METHODS (FACTOR ANALYSIS, MULTIPLE CORRELATION) IN ORDER TO DETERMINE THE ORDER OF MAGNITUDE OF THE INFLUENCE OF THE VARIOUS PARAMETERS. FINALLY THE SAME TESTS WOULD HAVE TO BE CARRIED OUT IN PARACTICE DURING INCORPORATION WITH ROLLERS. FROM THESE WOULD RESULT FUNCTIONS FOR BULK DENSITY AND THE QUANTITIES DERIVED IN RELATION TO THE PASSES WITH THE ROLLER. HERE TOO THE EXPONENTIAL COMPACTION FUNCTION IS A STARTING POINT. BY USING THE RESULTS OF STUDIES SUCH AS THESE IT WOULD BE POSSIBLE TO AIM AT CONTROLLING CERTAIN PROPERTIES OF A MIXTURE DURING ITS COMPOSITION.

• Corporate Authors:

  Verlag fuer Publizataet

  Auf der heide 20
  300 Isernhagen HB, Hannover,   Germany 
• Authors:
  • Heinemann, R
• Publication Date: 1972-6

Language

• German

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 238-243
• Serial:
  • Bitumen, Terre, Asphalte, Peche u Verwardte Staffe
  • Volume: 23
  • Issue Number: 6

Subject/Index Terms

• TRT Terms: Binder content; Bituminous mixtures; Bulk density; Compaction; Equations; Exponential functions; Factor analysis; Marshall test; Rollers; Void ratios
• Uncontrolled Terms: Parameters
• Old TRIS Terms: Degree of compaction; Marshall stability marshall stability & flow test flow
• ITRD Terms: 4929: Binder content; 4967: Bituminous mixture; 3686: Compaction; 5904: Compaction (state of); 6527: Correlation (math, stat); 6290: Marshall; 6200: Particle size distribution; 5938: Porosity; 5930: Stability; 6722: Temperature
• Subject Areas: Construction; Highways; Materials;

Filing Info

• Accession Number: 00080568
• Record Type: Publication
• Source Agency: Bundesanstalt für Straßenwesen (BASt)
• Files: ITRD, TRIS
• Created Date: Mar 26 1975 12:00AM