Research Article
Stiffness Analysis of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Columns under Eccentric Compression
Table 2
Mix proportion and mechanical properties of RSC.
| | Number ID | Water (kg/m3) | Sand (kg/m3) | Cement (kg/m3) | Fly ash (kg/m3) | Water-reducing agent (kg/m3) | Natural macadam (kg/m3) | RCA (kg/m3) | Cube strength (MPa) | Compressive strength (MPa) | Poisson’s ratio | Elasticity modulus (104 MPa) |
| | S1 | 210 | 736 | 305 | 144 | 3.143 | 798 | 0 | 36.2 | 29.1 | 0.217 | 2.63 | | S2 | 210 | 736 | 305 | 144 | 3.143 | 399 | 399 | 34.6 | 27.8 | 0.174 | 2.57 | | S3 | 210 | 736 | 305 | 144 | 3.143 | 0 | 798 | 33.0 | 26.3 | 0.152 | 2.31 | | S4 | 176 | 936 | 395 | 151 | 1.638 | 0 | 798 | 53.4 | 42.8 | 0.168 | 2.73 | | S5 | 164 | 736 | 477 | 113 | 1.770 | 0 | 798 | 61.8 | 49.5 | 0.165 | 3.02 |
|
|
