Secondary grouting of equipment foundation: ⑴ Before grouting, the equipment base plate and concrete foundation surface in contact with grouting materials should be cleaned. There should be no loose gravel, floating slurry, floating ash, oil stains, wax, etc. Hours before grouting, the base concrete surface should be fully moistened, and standing water should be removed hours before grouting.
⑵ When grouting for the second time, grouting should be carried out from one side until it overflows from the other side. Grouting should not be carried out from both opposite sides at the same time. After grouting begins, it must be carried out continuously and the grouting time should be shortened as much as possible.
⑶ When the track foundation or grouting distance is long, construction can be carried out in sections depending on the actual engineering conditions, and the length of each section should not exceed meters. If the equipment floor has a complex structure, pressure grouting should be used.
⑷ Vibration is strictly prohibited during the grouting process. If necessary, a grouting booster can be used. The booster pushes the grouting material along the bottom of the grouting direction. It is strictly prohibited to vibrate from the middle and upper parts of the grouting layer. promote.
⑸ After the equipment foundation grouting is completed, it is advisable to cut the bevel along the edge of the bottom plate to outsiders after the initial setting of the grouting material. If it is impossible to trim the edge, it should be cut with a spatula after the initial setting. The grouting layer surface is calendered.
Juancheng installation grouting material manufacturer