Research Article
Effects of High Temperature and Cooling Pattern on the Chloride Permeability of Concrete
Table 2
Fundamental characteristics of NA and RA.
| | Properties | Recycled coarse aggregate (RA) | Natural coarse Aggregate (NA) |
| | Adhesive rate of old mortar (%) | 33 | 0 | | Packing density (kg/m3) | Loose packing density | 1280 | 1360 | | Tight packing density | 1440 | 1480 | | Apparent density (kg/m3) | 2530 | 2660 | | Crushing value index (%) | 11 | 5.13 | | Water absorption (%) | 5.3 | 1.0 |
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