Table 2 Comparison between the rainwater collected at the bottom of the wall (drained rainwater) and rainwater collected in a reservoir (ordinary rainwater).
From: The Erosion of Reinforced Concrete Walls by the Flow of Rainwater
Ions | Drained rainwater (mg/l) | Ordinary rainwater (mg/l) |
|---|---|---|
Calcium | 24.048 | 10 |
Magnesium | 16.771 | 0 |
Chloride | 24.746 | 8.241 |
Sulfates | 23.84 | 7.154 |
Nitrates | 7.9 | 1.803 |
Ammonium | 0.13 | 0.153 |