Table 2.
Summary of all tested soil materials.
| Soil material | Source | USCS | D50 (mm) | Fines content (%) | XRD Characterization | |
|---|---|---|---|---|---|---|
| Primary minerals | Other detectable minerals (> 2%) | |||||
| Ottawa sand | Commerical (US Silica Inc.) | SP | 0.2 | – | Quartz (~ 100%) | – |
| Fraser river sand | Field Sample (Delta, BC, Canada) | SM | 0.2 | 15.6 | Quartz (~ 85%) | Albite (~ 15%) |
| Concrete sand | Teichert Aggregates (Woodland, CA, USA) | SP | 1.2 | 1.1 | Quartz (~ 75%) | Albite (~ 25%) |
| Covelo sand | DenBeste Supply (Ukiah, CA, USA) | SP | 1.2 | 1.6 | Quartz (~ 87%) | Albite (~ 13%) |
| Delta sand | NorCal Aggregates (Petaluma, CA, USA) | SP | 0.3 | 1.3 | Quartz (~ 58%) | Albite (~ 42%) |
| Monterey sand | Cemex Inc. (Marina, CA, USA) | SP | 1.4 | – | Quartz (~ 47%) | Microcline (~ 42%), Albite (~ 11%) |
| Feldspar | Laguna Clay (City of Industry, CA, USA) | SP | 4.0 | – | Microcline (~ 78%) | Albite (~ 12%), Quartz (~ 10%) |
| Olivine | Laguna Clay (City of Industry, CA, USA) | SP | 2.4 | – | Forsterite (~ 90%) | Fayalite (~ 10%) |
| Mica | Laguna Clay (City of Industry, CA, USA) | SP | 2.6 | – | Lepidolite (~ 100%) | – |
| Kaolinite | Commerical (Sigma Adrich) | ML | < 200 µm | = 100 | Kaolinite (~ 100%) | – |
| Montmorillonite | Commerical (Sigma Adrich) | CH | < 200 µm | = 100 | Montmorillonite (~ 96%) | Quartz (~ 4%) |