Influences of Specimen Geometry and Loading Rate on Compressive Strength of Unstabilized Compacted Earth Block
- Resource Type
- Authors
- Yihong Wang; Sisi Chao; Guan-qi Lan
- Source
- Advances in Materials Science and Engineering, Vol 2018 (2018)
- Subject
- Materials science
Article Subject
Numerical analysis
Earth structure
Constitutive equation
0211 other engineering and technologies
General Engineering
Earth materials
Geometry
02 engineering and technology
engineering.material
021001 nanoscience & nanotechnology
Block (periodic table)
Physics::Geophysics
Compressive strength
021105 building & construction
Physics::Space Physics
Loading rate
engineering
lcsh:TA401-492
General Materials Science
lcsh:Materials of engineering and construction. Mechanics of materials
Astrophysics::Earth and Planetary Astrophysics
0210 nano-technology
Earth (classical element)
- Language
- English
- ISSN
- 1687-8434
Loading rate and specimen geometry are critical parameters used in simple compressive tests to determine the strength of earth materials. In this study, cubic and cylindrical unstabilized compacted earth block of different sizes were manufactured and tested in unconfined compression to investigate the size and shape effects on the compressive strength of earth materials under different loading rates. The correlation between the compressive strength of earth materials and the geometric parameters of the specimen was determined. The recommended loading rate and sample for testing the compressive strength of earth materials were given. Finally, a constitutive model for describing the stress-strain response of earth materials was proposed. This model modifies the defects of the constitutive equations suggested in previous studies and may be applied to the numerical analysis of earth structure.