SURFACE DRESSING BINDERS
This article describes a study of the value of an impact energy approach for assessing the strength of road binders. A procedure is outlined for the determination of a standard impact energy in the brittle region and for the derivation from this of a single ratio by which a given binder can be compared directly with a standard binder. Results are given of the comparison with a coke oven tar. This standard impact energy ratio is shown to be a measure of a binder's resistance to traffic stresses at a given temperature. The data presented here as a measure of cohesive strength are in agreement with other more direct methods of measuring strength. The modification of coke oven tar with 1 1/2% polyvinylchloride is shown to increase the standard impact energy ratio by approximately 50% which is a measure of the resulting increase in width of the visco-elastic peak, i.e. an extension of the temperature range over which the binder exerts the maximum power of chipping retention. /TRRL/
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Corporate Authors:
Building and Contract Journals Linited
32 Southwark Bridge Road
London SE1 9EX, England -
Authors:
- Brig, DKH
- Publication Date: 1973
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 8-11
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Serial:
- Highways and Road Construction
- Volume: 41
- Issue Number: 1763
Subject/Index Terms
- TRT Terms: Binders; Brittleness; Coal tars; Cohesive strength; Energy; Impacts; Measurement; Polyvinyl chloride; Seal coats; Strength of materials; Temperature; Viscoelasticity
- ITRD Terms: 4948: Binder; 4963: Bitumen; 5900: Brittleness; 5903: Cohesion; 213: Energy; 5943: Equi viscous temperature; 7420: Polyvinylchloride; 5471: Shock; 5544: Strength (mater); 2984: Surface dressing; 4984: Tar; 6722: Temperature
- Subject Areas: Energy; Highways; Materials;
Filing Info
- Accession Number: 00083206
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Jul 2 1975 12:00AM