Research Article
Properties of Crushed Red-Bed Soft Rock Mixtures Used in Subgrade
Table 1
Main mineral composition.
| | Rock sample number | Main compositions (%) | | Quartz | Feldspar | Debris | Dolomite | Opaque mineral | Micrite gravel | Calcite | Iron-stain clay mineral
+ sericite | Calcareous |
| | 1# | 35 | 20 | 5 | 1 | 1 | — | 3 | 30 | 7 | | 2# | 30 | 15 | 8 | — | 1 | 3 | 10 | 33 | — | | 3# | 3 | — | — | — | — | — | — | 97 | — | | 4# | 40 | 15 | 5 | 1 | 1 | — | 8 | 31 | — | | 5# | 40 | 10 | 5 | 1 | 1 | — | — | 30 | 13 | | 6# | 38 | 12 | 5 | 1 | 1 | — | — | 30 | 13 | | 7# | 50 | 10 | | 5 | | — | 20 | 15 | — | | 8# | 55 | 10 | 1 | 1 | 3 | — | 15 | 15 | — | | 9# | 4 | — | — | — | — | — | 40 | 56 | — | | 10# | 50 | 10 | — | 1 | 3 | 1 | 20 | 15 | — | | 11# | 38 | 8 | 19 | 3 | — | — | 20 | 10 | — | | 12# | 40 | 12 | 23 | 1 | — | — | 15 | 10 | — |
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