Geo-Congress 2020
Monotonic Behavior of Calcareous Sands with Increasing Particle Crushing
Publication: Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
ABSTRACT
Calcareous sands, comprising higher than 50% calcium carbonate, are mostly located between latitude 30°S and 30°N. The engineering properties of calcareous sands differ from those of clays and silica sands due to the high particle angularity and in situ void ratios. Investigation of calcareous sands properties and stress-strain response are required for the design and long-term maintenance of offshore infrastructure including piers, bridges, and offshore renewable energy structures. In this research, calcareous sands from Puerto Rico are investigated to determine the monotonic stress-strain response and how increasing severities of particle damage and crushing affect loading behavior. To accomplish this, several advanced laboratory tests were conducted: 1) triaxial tests (CU) were utilized to investigate the monotonic stress-strain behavior; 2) oedometer tests, providing the one-directional compression load for sand crushing. The calcareous specimens were tested under various confining pressures (σ3) and with increasing percentages of crushed material.
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REFERENCES
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Information & Authors
Information
Published In
Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
Pages: 210 - 216
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8280-3
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
Published in print: Feb 21, 2020
ASCE Technical Topics:
- Calcareous soils
- Coasts, oceans, ports, and waterways engineering
- Engineering fundamentals
- Engineering materials (by type)
- Geomechanics
- Geotechnical engineering
- Laboratory tests
- Load tests
- Materials engineering
- Ocean engineering
- Offshore structures
- Particles
- Soil mechanics
- Soil properties
- Soil stress
- Soils (by type)
- Stress (by type)
- Stress strain relations
- Structural analysis
- Structural engineering
- Tests (by type)
- Triaxial tests
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