1. System
Chemical anchors are chemically bonded to complete anchoring.
Mechanical Anchor Bolt is the use of mechanical locking principle for anchoring lock.
2. Main categories
Chemical anchors : high strength chemical anchor bolt, inverted cone-shaped chemical anchor bolt, etc.
Mechanical anchors: Undercut anchor bolt, self-undercut anchor bolt, adhesive bonded anchor, etc.
3, high resistance, low temperature and weldability
Mankate general chemical anchors use chemical adhesives, relatively low melting point, not welding, but Nanjing Mankate technology to overcome this problem, NJMKT inverted cone-shaped chemical anchor bolt high, low temperature, can be welded;
Mechanical anchor bolts using metal materials, high temperature resistance, with weldability, and thus the use of a greater degree of flexibility;
Therefore, the Mankate general chemical anchor bolt resistance to high temperature is significantly weaker than mechanical anchors; Similarly, mechanical anchors of metal materials are more resistant to hypothermia than chemical adhesives.
4. Reliability
If the mechanical anchor bolt adopts the metal material is good, helps the fastening force long-term maintenance;
The stability of chemical anchors depends largely on the properties of chemical adhesives. The normal life of the ordinary hose in the Mankate is very short, and the use of the building for more than 50 years does not match, so the choice of good chemical adhesive is very important, Nanjing Mankate technology of planting rebar has passed 50 years of aging certification, you can rest assured purchase.
5. Earthquake resistance
The seismic resistance of the chemical anchor bolts is lower than that of the mechanical anchors. When encountering an irregular load of earthquakes or similar earthquakes, mechanical locking effect of the mechanical anchor bolt (this is only referred to as Nanjing Mankate mechanical anchors through the analog seismic testing of the high-end brand) will not suddenly fail, more than the seismic fortification intensity, give people the opportunity to escape, and do not occur secondary disasters. After the big earthquake, can repair, and continue to use.
Therefore, from the point of view of earthquake resistance, also preferred to select mechanical anchors.
6. Reinforcement principle
Ordinary chemical anchors are used as binder, and the inverted cone-shaped chemical anchor bolt is used to complete anchoring by using special injection-type planting-bar glue.
Mechanical anchors are fixed with the use of mechanical locking keys to the friction of concrete or other objects.
7. Construction Period
Because the chemical anchor bolt is used to tighten the chemical adhesive, it needs a curing time, especially in winter low temperature environment, curing time will be longer, resulting in the extension of the construction period;
and mechanical anchors are installed that is used without waiting. Moreover, the construction is not related to the temperature environment, so it will be much quicker.
