Laboratory evaluation of asphalt emulsion treated mixtures for road bases
Marl and dune sand are available in abundance in the gulf region including the eastern province of saudi arabia. With respect to roads, the use of the above aggregates, due to their poor strength, has so far been confined only to subgrade/ subbase layers. However, the above aggregates, when properly apportioned, could be effectively stabilised with a suitable percentage of asphalt emulsion so as to yield a mixture with improved engineering properties appropriate for basecourses for low volume roads. Portland cement, in small quantity, was also added to help develop early strength and resist water induced damage. Modified marshall method was employed to arrive at the optimum mix design. Resilient modulus of the designed mix was determined by repetitive diametral testing. An elastic multi layer computer program was run to arrive at the basecourse thickness requirement for a specified design of life of, say, 1 million standard axle load applications. Full scale trials of asphalt emulsion treated basecourses will still require a check of their performance in the field and a determination of their economic viability under actual traffic and climatic conditions prevailing in the kingdom (a).
- Record URL:
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Authors:
- Arora, M G
- Arabiat, T
- Conference:
- Publication Date: 1986
Language
- English
Media Info
- Pagination: 209-13
- Monograph Title: Study on bitumen with a view to improving road surfacing
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Serial:
- Volume: 13
- Issue Number: 3
Subject/Index Terms
- TRT Terms: Bitumen; Developing countries; Emulsions; Materials tests; Mix design; Pavement layers; Properties of materials; Stiffness
- ATRI Terms: Bitumen; Developing countries; Emulsion; Material properties; Material testing; Mix design; Pavement layer; Stability; Stabilization; Stiffness
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 01427390
- Record Type: Publication
- Source Agency: ARRB
- Files: ATRI
- Created Date: Aug 24 2012 2:17PM