To Determine The Orientation Of A Reinforcement Bar; Practice - Elcometer 331 SH Operating Instructions Manual

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OCATING REINFORCEMENT BARS

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The second scan locates the nearer (top) layer.

Second scan

(This situation is typical of a nearer layer consisting of relatively thin tie-wires or stirrups, and the

deeper layer consisting of much larger main structural bars.)

5.4 To determine the orientation of a reinforcement bar

1. Locate the position of the reinforcement bar - see "To locate a single layer of reinforcement

bars" on page 18.

2. Hold the search head over the bar. Move the search head side-to-side and rotate the head

clockwise/anti-clockwise until the signal is at a maximum (Figure 12).

When the signal is at its maximum, the search head is aligned parallel with the reinforcement

bar.

Figure 12. Determining orientation of a reinforcement bar

Because your Covermeter is unaffected by the nature of the material covering the reinforcing bars,

the easiest way to practice location and orientation technique is to use uncovered bars which you

Figure 11. Scanning layers of bars of different size

First scan

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