1. There are two main aspects of the safety of
chemical anchors. One is the potential safety hazards caused by the insufficiency of chemical anchors. The fire resistance of chemical anchors is a topic of discussion. In fact, fire resistance of chemical anchors and the composition of chemical agents are closely related.
On the other hand, there are currently two types of packaging for chemicals on the market, one is plastic hoses and the other is glass tubes. It should be said that each has its own advantages and disadvantages. Plastic is easy to transport and install, while glass is not easy to transport (but No transportation problems have been found so far), but glass can be used as fine aggregate and can be fully utilized. In addition, the glass packaging makes it easy to see if the ingredients inside have expired.
2. Another reason for the unsafe influence of chemical anchors, is the influence of operations during construction on the strength of chemical anchors:
A. The cleaning of the dust in the hole has a great influence on the
chemical anchors. If the performance of the chemical anchors during standard cleaning (vacuum cleaner, brush) is 100%, the performance of the chemical anchors when using a spare vacuum cleaner is only 70%. The performance of the chemical anchors is only 50% when brushing, and only 30% when not cleaning.
B. The influence of the state in the hole, if the performance of the
chemical anchors in the dry hole is 100%, the performance of the chemical anchor in the hole is 80%, and the performance of the chemical anchor in the wet hole is 100%.
C. Excessive stirring has a great influence on the fixing strength of the chemical anchors. The depth mark must be marked on the bolt. When the screw-in bolt mark reaches the hole surface, it should be stopped in time.
D. The larger the hole diameter of the drilled hole, the lower the drawing load, so the hole diameter of the hole must be carried out according to the data provided by the manufacturer.
As long as the construction is carried out according to the specifications and meticulous, and high-quality products are selected, chemical anchors are safe!
