Research Article
Influence of Lightweight Foamed Concrete as Backfill Material on Stress and Deformation of Buttressed Earth-Retaining Wall
Table 4
The performance indexes of lightweight foamed concrete.
| | Density of lightweight foamed concrete (kg/m3) | Flow value (mm) | Moist unit weight (kN/m3) | Compressive strength (28 days) (MPa) | Flexural strength (28 days) (MPa) | Water absorption (%) | CBR (%) |
| | 600 | 186 | 5.08 | 0.99 | 0.34 | 23.5 | 12.5 | | 700 | 178 | 5.74 | 1.45 | 0.47 | 21.7 | 15.6 | | 800 | 170 | 6.48 | 1.86 | 0.63 | 20.1 | 18.9 |
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