ADHESION BETWEEN BINDERS AND AGGREGATES
ADHESION IS DEFINED AS A COMPOSITE PROPERTY RESULTING FROM A COMBINATION OF THE ACTIONS OF SURFACE TENSION, ADSORPTION, AND OTHER PROPERTIES OF THE SOLID AND LIQUID SURFACES, RESULTING IN THE LIQUID'S SPREADING OVER, AND RESISTING REMOVAL FROM, THE SURFACE OF THE SOLID. ADHESION FAILURES APPEAR TO BE DUE TO THE DISPLACEMENT OF THE BINDER BY RAIN WATER ALTHOUGH OTHER FACTORS, SUCH AS THE ABRASION OF TRAFFIC MUST INFLUENCE THE PROCESS. ANALYSIS WAS MADE OF THE EFFECT OF THE VARIOUS CHARACTERISTICS OF THE AGGREGATE IN REGARD TO: MINERAL COMPOSITION, SURFACE TEXTURE, SURFACE DRYNESS, POROSITY, AND SURFACE TENSION. TEST METHODS ARE DESCRIBED AND CRITICIZED. THE THEORY THAT THE BINDER ADHERES BETTER TO BASIC STONES THAN TO ACIDIC STONES BECAUSE OF THE CHEMICAL AFINITY OF AN ACID BINDER FOR A BASIC MATERIAL APPEARS TO HAVE NO CHEMICAL BASIS.
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Supplemental Notes:
- No 3, P 292
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Authors:
- DOUGLAS, J F
- Publication Date: 0
Media Info
Subject/Index Terms
- TRT Terms: Abrasions; Adhesion; Adsorption; Aggregates; Binders; Liquids; Solids; Surface tension; Test procedures
- Old TRIS Terms: Aggregate characteristics
- Subject Areas: Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00216457
- Record Type: Publication
- Source Agency: Highway Research Board Bibliography
- Files: TRIS
- Created Date: May 6 1970 12:00AM