Research Article
Performance of Ecological Pervious Concrete Prepared with Sandstone/Limestone-Mixed Aggregates
Figure 9
Microscopic morphology of the transition zone of the interface between different aggregates of the ecological pervious concrete curing for 7 days and 28 days.
| (a) Sandstone 7 days |
| (b) Sandstone 7 days |
| (c) Limestone 7 days |
| (d) Limestone 7 days |
| (e) Limestone 28 days |
| (f) Sandstone 28 days |