CRITERIA FOR EMULSIFIED ASPHALT STABILIZATION OF SANDY SOILS IN MISSISSIPPI
In the first phase of the investigation various factors affecting stabilization of sands with emulsion is studied. The results show that well-graded sands with sufficient silt-clay material respond well to emulsions. Portland cement in trace quantities is required, however, to improve the water-susceptibility of the mixture. Because of its superior bonding to silicious aggregate, cationic emulsion is preferred in sand stabilization. Making use of the test results on eight naturally occurring soils and one synthetic aggregate mix design criteria for sands and sandy soils are proposed in the second part of the report. Mixtures which strip or stiffen excessively on mixing may be unsatisfactory. In addition, a mixture will be considered suitable if they have a minimum of 50% coating. Minimum Marshall strength of 202 N (900 lbs.) will insure that CETM would not undergo shear failure under heavy truck tire pressure. Another criterion, to detect and avoid moisture susceptible mixtures, is that Marshall cylinders during vacuum soaking should not absorb more than 10% moisture. The last chapter presents a step by step procedure of mixture design of CETM mixtures.
- Sponsored in part by Mississippi State Highway Dept., Jackson.
University of Mississippi, UniversityDepartment of Civil Engineering
University, MS USA 38677
Mississippi State Highway DepartmentP.O. Box 1850
Jackson, MI USA 39215
Washington, DC USA 20590
- George, K P
- Publication Date: 1976-10
- Pagination: 107 p.
- TRT Terms: Aggregates; Clay soils; Compaction; Deformation; Design; Emulsified asphalt; Fatigue (Mechanics); Flexible pavements; Formulations; Fracture mechanics; Laboratory tests; Mix design; Moisture content; Portland cement; Sand; Sandy soils; Shear strength; Silts; Soil stabilization; Triaxial shear tests
- Uncontrolled Terms: Design criteria; Marshall mix design; Stabilization; Triaxial tests
- Geographic Terms: Mississippi
- Subject Areas: Design; Geotechnology; Highways;
- Accession Number: 00154030
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA/M-0351 Intrm Rpt.
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Jun 17 1977 12:00AM