Mechanical anchor bolts and chemical anchor bolts are all the key types of standard components currently on the market for structural reinforcement. As a new type of anti-corrosion material that has continued to develop in recent years, these two chemical bolts have continued to develop a variety of models and specifications, and products of various specifications and models continue to consider the requirements of the sales market and are still in short supply. So, what are the differences between these two kinds of chemical bolts, and how to choose them in engineering projects? There are many levels below that can help you.
One difference is that the two methods of structural reinforcement are different. The mechanical anchor bolt uses the basic principle of a mechanical code lock key to carry out reinforcement anchoring and locking. The chemical anchor bolts use organic chemicals to fix the extruder screw powder and fine sand in the perforation of the concrete sheet to complete the anchoring of the fixing clip reinforcement.
The second difference is high temperature resistance and weldability. Chemical anchor bolts have low relative melting points due to the selected chemical raw materials, and their high temperature resistance capability is significantly weaker than that of mechanical anchor bolts with high melting points of metal composite materials. Therefore, mechanical anchor bolts must be weldable due to high temperature resistance. Therefore, the application scenarios are more diversified. However, the inverted cone-shaped chemical anchor bolts manufactured by Nanjing Mankate can be welded by electric welding, and the high temperature resistance is very good to fill the lack of chemical anchor bolts.
The third is the practical difficulty factor. Mechanical anchor bolts, like general chemical bolts, have relatively low requirements for installation personnel. However, chemical anchors must be manually serviced to embed organic chemical drugs, which will have a certain degree of difficulty. However, you can get a free glue gun if you buy a chemical anchor, and you can get excellent practical results with the supporting facilities and structural glue produced by the manufacturer.
The fourth is the level of seismic resistance. Chemical anchor bolts have lower seismic resistance levels than mechanical anchor bolts. When subjected to irregular loads such as earthquake disasters, mechanical anchor bolts will give full play to the better anchoring force of steel bars. It can prevent secondary disasters caused by the collapse of the house. Only a very small number of mechanical anchors in China have withstood harsh earthquake disaster simulation testing, and Nanjing Mankate is one of them.
The fifth is the construction period. Since mechanical anchor bolts are made of metal materials, there are no too many engineering construction restrictions, and the installation is relatively convenient. The chemical anchor involves the application of organic chemical drugs, so it must be dried for a long time. There is also a certain increase during the construction period.
Therefore, since mechanical anchor bolts and chemical anchor bolts have different characteristics, they should be adopted according to the different requirements of the engineering project.