A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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.
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.
Criteria for Emulsified Asphalt Stabilization of Sandy Soils in Mississippi
K. P. George (author)
1976
107 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Flexible pavements , Sands , Clay soils , Aggregates , Mississippi , Laboratory tests , Shear strength , Triaxial tests , Formulations , Design criteria , Stabilization , Fractures(Materials) , Fatigue(Materials) , Deformation , Moisture content , Compacting
Emulsified asphalt soil stabilization
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| Engineering Index Backfile | 1937