Chapter
Apr 26, 2012
Pavement Engineering Parameters for Thai Collapsible Soil
Authors: D. A. Cameron [email protected] and R. Nuntasarn, Ph.D. [email protected]Author Affiliations
Publication: Unsaturated Soils 2006
Abstract
This paper presents an investigation of the potential of collapsing soil or loess from Thailand for possible use as a pavement material or subbase. Earlier studies indicated high CBR values for well-compacted material. The collapsing soil is classified as silty sand, with a slight to moderate degree of collapse index. Thai collapsible soil samples were tested generally in the compacted condition (Modified compaction) at optimum moisture content and maximum dry density. Consolidated Isotropic Undrained (CIU) triaxial testing with pore water pressure monitoring was performed on back-saturated samples to quantify the permissible stress states for resilient modulus testing. The resilient modulus of the soil was found to be stress dependent and trends agreed reasonably well with the current AASHTO empirical equation for the resilient modulus of sand.
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© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Collapsible soils
- Compacted soils
- Engineering fundamentals
- Geomechanics
- Geotechnical engineering
- Infrastructure
- Laboratory tests
- Material failures
- Materials characterization
- Materials engineering
- Mathematics
- Parameters (statistics)
- Pavements
- Soil classification
- Soil mechanics
- Soil modulus
- Soil properties
- Soils (by type)
- Statistics
- Tests (by type)
- Transportation engineering
- Triaxial tests
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Affiliations
Senior Lecturer, School of Natural and Built Environments, University of South Australia, Mawson Lakes, SA 5095;. E-mail: [email protected]
Student, School of Natural and Built Environments, University of South Australia, Mawson Lakes, SA 5095. E-mail: [email protected]
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