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Construction Advantages of Self Drilling Anchor Bar

Because of special structures of self drilling anchor bar, there are several advantages during anchoring construction:

1. High efficiency of construction. Self drilling anchor bar combines drilling, grouting and anchoring together, with saving time and labor force.

2. Suitable for stratum which is difficult for pore-forming. When encountering weak or broken stratum, it’s difficult to drill hole and even happen collapse, while self drilling anchor bar avoids these shortcomings. After drilling hole, anchor bar is stayed in hole, which can not only avoid collapse, but also save time and reduce difficulty for construction.

3. Strong adaptability. Thread is spread on the whole body of self drilling anchor bar, it can be cut at any location and can be lengthened. It has different materials and sizes to suit for different construction conditions.

4. High anchorage strength. Thread on self drilling anchor bar has tight link with coupling and also with grouting body.

5. Good anchoring effect. When grouting, seriflux is grouted from bottom of hole, full and dense, so grouting quality is high.

6. Simple construction. Compared with common anchor bar, construction of self drilling anchor bar is simple and fast, it reduces working procedures of pull-out of hole, anchor bar installation and grouting pipe insert, etc.

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