Operator safety in the controlled demolition of concrete structures by diamond sawing and coring is determined by the temporary fixations we use for fixing or equipment on the job sites.
This short introduction is entirely focused on the temporary fixation of diamond tools. It is not intended to be used for the determination of anchor loads for the lifting of concrete elements or other heavy loads.
If you are interested in having more information on the matter, you can check the IACDS guide on the temporary fixation of diamond cutting and coring equipment.
Diamond applications, in general, require high pressing forces on the diamond tools to achieve meaningful cutting and coring performance.
Thus, the tensile forces on the anchors used to fix our equipment are high. Anchoring handbooks usually give good guidance to an extent. However, this guide focuses on providing practical rules and examples.
We advise you to use it carefully, conditions vary from site to site considerably.
Diamond applications requiring the use of anchors are characterized by the following commonalities:
- The specification of the base material, which is basically poorly designed
- The conditions of the diamond tool in use are critical for the maximum loads to be expected.
- Damaged and poorly maintained equipment or diamond tools can cause very strong vibrations and dynamic loads on the anchor.
“The sharpness of the diamond tool used is key for low forces”
There several areas where these considerations take a very important place:
- Considerations for wall sawing
- Considerations for diamond coring
- Considerations for wire sawing
Its the weakest point in an anchor fastening that determines the cause of failure, which may very well be concrete break-out, shear rupture of steel and other issues.
The recommended load of the anchors is the correct selection criterion. In short, calculations need to be performed to determine the loads for its security.
This kind of work should preferably be done by technical professionals since its critical that is properly developed.
Anchor types for concrete:
- Push in anchor
- Stud anchor
- Screw anchor
- Threaded rods
- Chemical anchor systems
For an anchor to perform correctly, it is critical that it be properly installed per manufacturer instructions.
The careful selection and proper use of a setting tool are essential. Operators should not attempt to repair or grind a deformed or damaged setting tool.
If the setting tool becomes deformed it should be replaced.