Viber consistency determination
2025-07-31
This method is suitable for the fluidity of dry hard concrete mixture with a slump of less than 10mm. The test method is to put the concrete mixture into the slump cylinder according to a certain method, tamping according to a certain method, and after filling and leveling, lift the slump cylinder vertically upwards, and turn the transparent disc to the concrete circular platform body.
Construction plan of precast reinforced concrete assembly inspection well
2025-07-31
For the construction of open-slot drainage pipelines, the method can be constructed by running down the pipe section by section after slotting and hoisting in the well; it can also be constructed by preserving well positions, running down the pipe first, and hoisting the well body last.
High-frequency vibration pipe making machine production process
2025-07-31
Fully automatic production of small and medium-diameter drainage pipes (except for the production of steel cages) are mainly concrete mixing, feeding, internal mold vibration forming, nozzle rolling forming, internal mold removal, external mold removal, electric consignment, maintenance (natural maintenance or low temperature) Maintenance), bottom pallets, turning over (horizontal placement) of pipes, and transporting them out of the workshop to the storage yard.
Inspection method of closed water test
2025-07-31
1. Closed water test device Figure 2. Closed water test 2.1. Check whether the plugs at both ends of the access pipeline of the inspection well are blocked. 2.2. Fill the inspection well with water and increase the pressure to 0.1MPa, drain the internal air, and keep the pressure constant for 5 minutes. 2.3. Observe whether there is water leakage on the outer surface of the inspection well and make a record.
Installation of precast concrete inspection well
2025-07-31
When a rigid connection is used, the contact surface of the precast concrete inspection well and the pipeline interface should be "scarved". When connecting, 1:2 cement mortar or polyurethane cement mortar can be used for caulking, and the thickness of the joint is 10mm-15mm. The original mortar on the inner side of the interface is flat seamed to ensure that the mortar is full.