The metal sandwich board is a more beautiful and generous decorative board. The pattern on it can be said to be very beautiful. It can play a good decorative board effect on many occasions. Sometimes it is also used to verify certain properties. Some tests will be done for verification. What are the introductions about its pull-out test?
If you use other sizes of pulling heads, but the area is different, the conversion to Mpa is the same. The pull-out test of anchor bolts depends on the type of post anchor bolt: three to five minutes after the expansion type post anchor bolt is fixed; the chemical implant type depends on the instructions of the planting glue, generally after 24 hours, and sometimes after 48 hours; The metal sandwich board perforated cement mortar buried cement mortar 28 days later.
The pull-out test of the metal sandwich board can be carried out according to the above operations. During the operation, it is necessary to carry out reasonable data calculations according to relevant calculations. When using the carved board in normal times, everyone needs to operate according to the requirements.