In the construction reinforcement projects, chemical anchor bolts and chemical planting tendons are often encountered. In actual construction, many reinforcement people will still be unable to distinguish between chemical anchor bolts and chemical planting tendons. So what is the difference between chemical anchors and chemical planting bars? Which is better and stronger?
What is a chemical anchor?
The chemical anchor is a new type of anchor that appears after the expansion anchor, consisting of a chemical hose and a screw, and a gasket and a nut. Through the chemical hose, the screw is cemented and fixed in the bore of the concrete substrate to realize a component for anchoring the connected members.
What is chemical planting bars?
Chemical planting bars, referred to drill holes in concrete, wall rock and other substrates, and then injecting the rubber. (Note: There are two kinds of implanted glue and barreled glue). Reinsert the steel bar or the screw. After the glue is solidified, the steel bar and the substrate are bonded together. It is a commonly used construction engineering technology in the engineering reinforcement industry.
The difference between chemical anchor and chemical planting bars
The chemical planting tendons has basically the same principle as the chemical anchor bolts. The high-strength structural adhesive is used to bond the tie-bars to the reinforced concrete to make it a whole.
However, due to the fact that the chemical anchors in the market are generally relatively short and shallow, the anchor depth is shallow and the ability to adapt to the cracks of the substrate is poor. And the bearing capacity is very low, which is not suitable for the structure of tension, edge shearing, and shearing and post-anchor connection of components and lifeline engineering non-structural components. The application in some areas with high seismic resistance has limitations.
Because the chemical planting bar is not limited in length and the damage mode is easy to control, it is suitable for the anchoring connection of structural members and non-structural members with static and seismic fortification strength ≤ 8 degrees. It has been widely used in the reinforcement and reconstruction of existing buildings. For example, in the construction, the reinforced steel bars or steel bars are remedied from the design position. The reinforcement of the section is strengthened and the upper structure is expanded; the jacking is applied to the beam and the column, and the roof is added to the building, the high-rise building; the planting of the wall and so on.
Which is better and stronger, the chemical anchors or chemical planting bars?
Chemical anchors are widely used in foreign countries, but recent studies have shown that the performance is not good, especially for the cracked concrete substrates. The calculation method is not mature enough, and the damage form is difficult to control. While the chemical planting bars technology is the current mainstream reinforcement technology. Due to its mature technology, it has been seen in many new construction and reinforcement projects. Regarding the difference between chemical anchors and chemical planting bars, please call Mankate technology to discuss.
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