Visual Inspections
Last Updated on:
for visual inspction, the tools needed are: Experience and a well-trained eye.
Methodology
Defects Observed
1. Sketch of surface appearance when concrete has been mixed for too long or the time of transport has been too long.
2. Sketch of Crack due to concrete settling.
3. Sketch of exposed aggregate
4. Sketch of cracking due to bowing of framework
5. sketch of sinking due to timbering
6. Sketch of severe rusting due to reinforcing bars due to chemical action
7. Sketch of effect of fire on concrete
8. Cracks due to differential settlement of central column
9. Cracks due to bending and shear stresses
10. Cracks due to insufficient reinforcing bars
11. Rusting of reinforcing bars
12. effect of atmospheric conditions
13. Non-uniformity of admixture