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Concrete pump tube four considerations
Haomei remind you when the concrete pump tube shall be carried out according to its technical parameters and specific situation, here we introduce for everybody four precautions: concrete pump tube
A, vertical tube
1. The vertical tube, to reduce concrete pump outlet pressure, appropriate ground horizontal tube length is not less than a quarter of the vertical tube length, usually should not be less than 15 meters.Such as constraints can increase the bend or circular tube meet the demand.
2. When the vertical conveying distance, should be in a concrete pump machine Y tube discharging mouth 3-5 metres of conveying pipe root set pin valve to prevent concrete mixture reflux.
Second, the down side tube
1. The down side cloth tube, when the elevation difference is greater than 20 meters, should be in the lower inclined tube set 5 times the length of the elevation difference of horizontal tube;Such as constraints, can increase the bend or annular pipe to meet the requirements of elevation difference length of 5 times.
2. When the slope is greater than 20 째, should first open the discharge valve, stay under the pipeline section concrete with a certain pressure, can close the discharge valve.
Third, summer construction
Hot season construction, should be cover with a damp cloth and straw bag to cover the conveying pipe, in order to avoid direct sunlight, tube concrete slump loss, transportation difficulties.
Fourth, winter construction
Cold season construction, appropriate USES heat preservation material in the conveying pipe, prevent concrete seas, and guarantee the concrete into the mold temperature.
Above is the concrete pump tube four considerations.