The mechanical anchor bolt is different from other types of anchor bolts. The mechanical locking effect it uses has been effectively applied in the field of anchoring, and its industry recognition is relatively high. So, what are the advantages of mechanical anchors compared with other anchors? Next, we will take the chemical anchor bolt as the comparison object to make an analysis and comparison.
First of all, from the point of view of the principle of action. Mechanical anchors use the friction or locking action between the anchor and the anchor hole to form the anchoring force, while chemical anchors form the anchoring effect through the bonding force of chemical adhesives. It can be seen that the working mechanisms of the two are very different. The mechanical anchor stress is the locking force and the expansion force, and the chemical anchor stress is the bonding force.
Second, from the perspective of stress. For different types of anchors, the force level directly determines the size of the anchoring effect. The more common chemical anchors on the market are divided into high-strength chemical anchors and special inverted tapered chemical anchors. High-strength chemical anchor bolts need to be used with chemical hoses, and the amount is relatively large. Special inverted tapered chemical anchors need to be used with injection-type rebar planting glue. When selecting large-sized anchors for construction, the stress of special inverted tapered chemical anchors is better than that of high-strength chemical anchors. Since the special inverted tapered chemical anchor can form a key-locking effect similar to that of the mechanical anchor, the stress of the mechanical anchor is similar to that of the special inverted tapered chemical anchor, and the difference is not much, but it is better than that of the high-strength chemical anchor. .
Finally, from the construction operation point of view. The installation of mechanical anchor bolts does not require the use of glue, and there is no glue curing process, so there is no corresponding waiting time. As long as the holes are anchored, the follow-up operations can be carried out directly, and the quality of the anchorage will not be affected by other factors, which can save a lot of time and accelerate the speed of completion. And after the installation is completed, the mechanical anchor does not need to consider what kind of influence the colloid performance will bring, nor does it need to consider the problem of aging. The chemical anchor bolts are anchored in the form of chemical adhesives. So it needs a certain curing time, and its anchoring quality is also affected by temperature. In addition, if you want to ensure the effect of chemical anchor bolts, you must clean the holes and perform glue injection skillfully so that the colloid performance can be exerted. These operation steps will increase the difficulty of anchoring.
In general, mechanical anchor bolts have great advantages in terms of principle of action, stress conditions and construction, but different anchor bolts have corresponding use values. In the selection of materials, we still have to combine the specific situation. To decide, in order to effectively ensure the safety of the anchoring project.
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