Test standard for chemical anchor pull-out test

The detection standard of chemical anchor pull-out test is as follows:

C25 or C30 crack-free concrete should be used as far as possible for concrete, and the thickness of concrete should meet the data in the table of minimum buried depth of chemical anchor bolts mentioned above. If the high-strength chemical anchor bolts are calculated as N-type anchor bolts, besides the ex-factory inspection, the type inspection shall be carried out at least once every three years, and the buyer may also use the drawing instrument to carry out the failure test, and the number of anchor bolts in each test shall not be less than three.

The installation of anchor bolts shall conform to the requirements of specifications as far as possible, and shall be installed according to the method required by the manufacturer, and a certain margin shall be left between the anchor bolts and the base material. The stretching time should be operated according to the chemical curing schedule provided by the manufacturer. During the pull-out test, the surface of the concrete matrix should be smooth, and the pull-out force of the anchor bolt can be measured by using an economical hydraulic pull-out instrument.

Introduction of chemical anchor bolt;

Chemical anchor bolt is a new type of fastening material, which consists of chemical agent and metal rod. It can be used for the installation of rear embedded parts in various curtain walls and marble dry-hanging construction. Because the chemical reagent contained in the glass tube is flammable and explosive, the manufacturer must be approved by the relevant state departments before production. The whole production process requires strict safety measures, and the assembly line completely isolated from the staff must be used.

If you work by hand, it will not only violate the relevant national regulations, but also be very dangerous. Chemical anchor bolt is a new type of anchor bolt after expansion anchor bolt. It is a kind of composite component that the screw is cemented and fixed in the drilling hole of concrete substrate by a special chemical adhesive to realize the anchoring of the fixed part.