Steel-reinforced concrete lamp post. Reinforced concrete is the use of steel rods within concrete to strengthen the resulting structure. Here,water has entered cracks in the concrete and rusted the steel. This expands as it oxidises which cracks off layers of concrete | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 3417 px × 5125 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |