From: Physical characteristics of scoriae and ash from 2014–2015 eruption of Aso Volcano, Japan
Sample | Run | Temperature (\({^{\circ }}\hbox {C}\)) | Thickness (mm) | \({\upphi }_{\mathrm{b(Initial)}}\) | \({\upphi }_{\mathrm{b(Deformed)}}\) | S (\(\hbox {mm}^{2}\)) | \(\upsigma _{\mathrm{N}}\) (kPa) | Results |
---|---|---|---|---|---|---|---|---|
1 | 1 | 950 | 9.7 | 0.76 | – | 670 | 1.5 | Shrink |
1 | 2 | 950 | 6.4 | – | 0.74 | 690 | 7.3 | Shrink |
1 | 3 | 950 | 6.3 | 0.74 | 0.68 | 680 | 37 | Shrink |
2 | 4 | 950 | 5.6 | 0.83 | 0.66 | 335 | 75 | Shrink |
3 | 5 | 500 | 5.8 | 0.89 | – | 310 | 82 | Fractured |
4 | 6 | 500 | 6.4 | 0.72 | – | 650 | 38 | Fractured |
5 | 7 | 700 | 4.3 | 0.95 | – | 300 | 83 | Partially fractured |