- Low concrete workability, i.e., improper w/c ratio.
- Over-vibration of concrete
- Inadequate concrete compaction
- Addition of extra water to concrete mixture to increase workability
- Pouring concrete from excessive heights
- Formwork lacks proper rigidity and watertightness; hence grouts leak out of poured concrete
- High aggregate content and oversized aggregates
- Congestion of steel bars
- Small concrete cover over steel bars
- Placement of concrete that has lost workability.
Causes of Honeycomb In Concrete
