What are the construction technology of concrete material?

Construction technology of concrete placing boomsa, follow the instructions to install a factory-installed boom boom.b, the boom stand straight, see if you can stand straight in the case do not counterweight. Boom under normal circumstances are considered to be the counterweight can not stand straight, because in the lifting boom, common crane boom can not counterweight hanging together, need to be lifted in two installations.

c, check whether all boom bolts tightened, whether normal hinge.d, erection frame body boom placement, and the inspection and acceptance, to calculate the force parts of the frame body capacity, stable situation reinforced the case Twill member of the foundation.e, placed boom and counterweight boom intermediate requirements must Overhead 200 ~ 300mm, the foot support surface or wooden sleepers bedding, check cloth club shaft is vertical.can do when f, manual boom mounted on the body frame when in use frame tube legs compaction, installed on the ground floor.g, treated with wind cable rope cloth lever legs fixed, cable wind rope too tight, should stay out of boom force and deformation distance.h, then concrete pump tube during takeover must be fully cleaned to check whether the pump tube, the interface must use rubber gasket. After concrete pump pipe connector bolts should re-examine the case.i, test, control of concrete with a large rope discharge port, and an intermediate curved arm demolition at its maximum scope week run.j, ready for concrete pouring of the signal line and radio, dual control, in the columns, walls concrete pouring, to ensure that the lamp pump stop, stop Li Ting, foreground pouring point must advance 4S stopped, put out the lights, traffic must let someone be, when night construction, control them must be accompanied by concrete flashlight, to see concrete pouring height.k, when you change the position of the discharge port, with one sack will be exported wrap, avoid concrete fell on the ground, to another location on the material and then unlock.

l, manual boom is not free to take a long, long time to be received in more than allowable working radius must be added to set a fixed support.m, concrete pouring is completed, you must use mortar and clean water in the pump tubing, pumping water to wash, must use a standard cleaning balls and other objects should not be used in place of each use, after cleaning, take the first lifting weights, After hanging cloth shaft to the next working position, after installation, hanging into the counterweight, repeat the previous work.