The errors in the placement of reinforcement. The Proper reinforcement fabrication in concrete construction is very important. There are some errors in the placement of reinforcement which may occur due to some different causes and other factors. In this article, we are going to discuss 10 of them which are

1- Improper anchorage of the main reinforcement at the intersection of the cantilever slab and beam.

2- Non-uniform concrete cover of the reinforcement.

3- Ineffective placement of reinforcement with respect to the depth of the member, which reduces the lever arm in the beam or slab.

4- Discontinuity of reinforcement at continuous edges of the slabs.

5- Deformations and dislocations of reinforcement during concreting due to construction loads. (e.g., workers walking over the reinforcements.

6- Inadequate lap lengths.

7-  Bar with less diameter was used.

8- The cluster of reinforcing bars at splicing points.

9- Inadequate spacing of bars.

10- The use of the rusted reinforcement in the construction.

11- Insufficient or non-uniform cover for reinforcement, which leads to corrosion.

12- Improper use or absence of cover blocks.

13- Reduction in bar diameter due to corrosion and due to improper storage of the bars at the site

14- Bars with larger diameters used due to the non-availability of bars with correct diameters.

15- Improper detailing and placing of stirrups.413

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