| Angles | Values |
The wall samples with reinforced plaster mortar | N | P2 | P3 | S2 | S5 | P2S3 |
| 30° | The stiffness | 141 | 86 | 100 | 114 | 157 | 100 | The stiffness ratio | 1,00 | 0,61 | 0,71 | 0,81 | 1,11 | 0,71 | 45° | The stiffness | 133 | 87 | 167 | 115 | 139 | 145 | The stiffness ratio | 1,00 | 0,65 | 1,26 | 0,86 | 1,05 | 1,09 | 60° | The stiffness | 147 | 178 | 166 | 149 | 188 | 145 | The stiffness ratio | 1,00 | 1,21 | 1,13 | 1,01 | 1,28 | 0,99 | 90° | The stiffness | 149 | 223 | 238 | 231 | 347 | 153 | The stiffness ratio | 1,00 | 1,50 | 1,60 | 1,55 | 2,33 | 1,03 |
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