chemical fixings Concrete strength requirements
Chemical anchor bolts are a type of connection and fixing parts used in concrete structures, so concrete strength is one of the important considerations. Ordinary chemical anchor bolts generally require the concrete strength grade to be no less than C20. For construction projects with higher requirements, such as high-rise buildings and bridges, it is recommended to increase the concrete strength grade to C30. Before using chemical anchor bolts for connection, it is also necessary to drill and clean the concrete holes to ensure the strength and stability of the concrete.
FIXDEX chemical anchor Surface flatness requirements
The surface flatness of concrete directly affects the use effect of chemical anchor bolts. Because chemical anchor bolts react with the concrete surface through chemical substances to enhance the connection and fixing effect. If the concrete surface is not smooth, it is easy to cause insufficient reaction between chemical anchor bolts and the concrete surface, reducing the connection and fixing effect. Therefore, the surface flatness of concrete shall not be lower than a certain standard, and it is recommended to use mechanical flattening to treat the concrete surface.
chemical anchor bolt Dry state requirements
Generally, the parts connected by chemical anchor bolts need to be kept dry, and the moisture content of concrete should not be too high. Because moisture will affect the speed and effect of the reaction between chemical anchor bolts and the concrete surface. It is recommended to clean and dry the concrete surface around the connection point before chemical anchor construction.
chemical bolt IV. PH value requirements
The PH value of concrete is also one of the important factors affecting the effect of chemical anchors. Generally speaking, the PH value of concrete should be between 6.0 and 10.0. Too high or too low PH value will affect the connection effect. It is recommended to test the PH value of concrete before construction, and take appropriate measures to adjust it as needed to ensure that the connection and fixing quality meet the requirements.
Post time: Dec-10-2024