Table 5 Mix proportions for 1 m3.
From: Mix Design and Properties of Recycled Aggregate Concretes: Applicability of Eurocode 2
NAC | RAC30 | RAC65 | RAC100 | |
|---|---|---|---|---|
Cement (kg/m3) | 360 | 360 | 427 | 448 |
Effective water, Weff (kg/m3) | 180 | 180 | 180 | 180 |
Additional water, w a (kg/m3) | – | 10 | 42 | 53 |
Sand (kg/m3) | 703 | 780 | 957 | 930 |
Natural aggregates G1 (4/10 mm) (kg/m3) | 346 | 227 | 88 | – |
Natural aggregates G2 (10/20 mm) (kg/m3) | 692 | 429 | 131 | – |
Recycled aggregates GR1 (4/10 mm) (kg/m3) | – | 86 | 145 | 218 |
Recycled aggregates GR2 (10/20 mm) (kg/m3) | – | 164 | 218 | 326 |
Superplasticizer (kg/m3) | 1.25 | 1.25 | 1.25 | 1.25 |
Effective water/cement (Weff/C) | 0.50 | 0.50 | 0.42 | 0.40 |
Total water/cement (W/C) | 0.50 | 0.52 | 0.52 | 0.52 |
Paste volume (%) | 29.6 | 30.6 | 36.0 | 37.8 |
Theoretical density (kg/m3) | 2,280 | 2,236 | 2,188 | 2,155 |
Experimental density (kg/m3) | 2,287 ± 3 % | 2,224 ± 2 % | 2,190 ± 1 % | 2,159 ± 1 % |