Table 2 Dry densities of test samples, and published data listed in the Appendix. Coarse and fine grain size distributions are shown in Fig. 4
Sample | Grain size distribution | Mean density (kg m− 3) |
|---|---|---|
Synthetic pumice | Fine | 602 |
Coarse | 412 | |
Synthetic scoria | Fine | 1532 |
Coarse | 1223 | |
Ascension ash | Fine | 1019 |
Published data | All | 400–1500 |