What is the difference between a chemical bolt and an expansion bolt?
Expansion bolts:
Expansion bolts are installed in the completed straight hole inside the expansion bolts, through the imposition of torque to the expansion sleeve on the concrete wall extrusion, through the extrusion produced by the friction to achieve the structure of the anchorage effect of the fixed parts.
The component part of the expansion bolt: a bolt with a triangular head, with an opening tube, a flat cushion, a spring mat,Hexagon nuts.
In the construction, first a deep hole in the matrix, loaded into the whole expansion screw, screw into the nut, open the opening pipe
Fix the bolts. Expansion bolts are widely used in buildings.
Chemical bolts:
The chemical bolt is used to resist the pull and the bolt itself to shear by the grip and the mechanical bite force between the concrete and the joint of the old and new structure. The chemical bolt is one of the rear-buried parts, which is used in the leakage of the embedded parts or in the post construction project.
Components of chemical bolts: A metal bolt, with a tube of glass tube closed glue, glue to meet oxygen
Fix the main bolt after curing.
