Table 1 The physical properties of each aggregate
From: Study on Crack Resistance and Calculation Model of RAC Beams Strengthened with Prestressed CFRP
Aggregate type | Size (mm) | Fineness | Apparent density (kg/m3) | Pile-up density (kg/m3) | Mud content (%) | Water absorption (%) | Crushed index (%) |
|---|---|---|---|---|---|---|---|
Recycled coarse | 5–20 | / | 2490 | 1240 | 0.68 | 4.2 | 14.2 |
Coarse | 5–20 | / | 2810 | 1360 | 0.47 | 1.0 | 9.0 |
Fine | 0–4.75 | 2.9 | 2590 | 1420 | 1.8 | 1.3 | / |