Injecting grout into the embedded grouting pipe can seal construction joints, cold joints, double liquid silicification, aerated silicification and electric double liquid silicification.
Soletracy.A short section of screw end rod is welded on both ends of a single prestressed thick steel bar, and the nut and backing plate are sleeved to form the simplest grouting pipe. The pretension force is transmitted to the nut through the bearing force on the threaded slope of the screw end rod, and then to the concrete components around the reserved hole crossing through the base plate.Let's take a look at the prestressed machines and tools. The small editor of prestressed machines and tools reminds everyone that the screw end rod is made of cold drawn or heat-treated reinforcement, and the thread is fine teeth. The welding between the end rod and the prestressed reinforcement should be carried out before the cold drawing of the prestressed reinforcement. This grouting pipe can be used at the tensioning end and the fixed end. A general jack is used for tensioning, and the jack pull rod (with internal thread at the end) is tightened on the thread of the screw end rod for tensioning. After tensioning, tighten the nut and anchor the rebar. The advantages of this grouting pipe are relatively simple, and when the jack returns oil after the grouting pipe, the prestressed reinforcement basically does not slide. If necessary, facilitate re tensioning. The disadvantage is that the accuracy of the length of prestressed reinforcement is high, and it cannot be too long or too short, otherwise the thread length is not enough.
Slump test shall be carried out for concrete entering the site. No less than 3 groups of test pieces shall be made for the same batch of concrete with the same strength grade. One group is used for standard curing, and the other two groups are used for curing under the same conditions to determine demoulding and allowable lifting time. How to deal with the joint if the grouting pipe is installed in sections? If the grouting pipe is installed in sections, the joints must be welded. The welded joints of the section steel have been prepared in the manufacturing plant, the concrete strength must meet the design requirements. When there are no special requirements in the design anchor them according to the above steps. Install the formwork at the beam end. The formwork shall be made according to the overall dimensions of Hainan grouting pipe device and the notch of the reserved slot. The formwork shall be made quite tight to prevent mortar from flowing into the displacement control box or into the beam end gap.
. When lifting and demoulding components,SoletracyLeading small conduit manufacturer, the non prestressed members shall not be less than 50% of the designed standard value of concrete cube compressive strength, and the prestressed members shall not be less than 75% of the designed standard value of concrete cube compressive strength.
3 advantages: Simple installation, complete set; The grouting pipe can be intercepted at the construction site according to the actual required length of the joint (it is recommended that the longest grouting outlet length should not exceed 6m); No special installation equipment is required; four
This is a 32 size pipe body grouting steel pipe commonly used in grouting pipes. It is a customized product and can be customized according to user needs. However, the most common diameter specifications in the market at present mainly include 25mm, 32mm, 48mm 60mm and so on.
Flexibility: it is convenient to place at the corner without cutting and connecting.
The grouting pipe is specially used as a channel for the depth detection of pile foundation and for structural stress calculation. The grouting pipe is a small pipe, but this small pipe meets the standard sensitivity of sound reception. As long as there is a small sound, it can measure it and accurately reflect the data on the computer or sound receiver. During the concrete pouring of cast-in-place pile, a channel that allows the ultrasonic probe to be normally placed at the pile bottom is reserved, which is not considered in the structural stress calculation.
● advantages: Simple installation, complete set; The grouting pipe can be intercepted at the construction site according to the actual required length of the joint (it is recommended that the longest grouting outlet length should not exceed 6m); No special installation equipment is required; Grouting time can be arbitrarily selected; When grouting is carried out internally under proper pressure, the grouting pipe fluid can keep filling the whole pipe evenly; The system allows grouting under relatively low pressure; The grouting pressure is 0.2-0.4mpa.
Variable cost.The proper grouting time can be selected after the concrete curing. Leakage joints can also be permanently sealed in this way.
Application scope: This product can be widely used in subway, tunnel, water plant and sewage treatment plant, swimming pool and upstream amusement park, dam, ship lock, c reservoir and ditch, nuclear power station, primary and secondary cofferdam facilities, bridges, commercial and industrial buildings, garages, stadiums, aquariums water tanks and similar structures. Grouting channel for deformation joint, construction joint leakage maintenance and embedded water stop. Slurry pipe (theoretical weight per meter)
When lifting and demoulding components, the non prestressed members shall not be less than 50% of the designed standard value of concrete cube compressive strength, and the prestressed members shall not be less than 75% of the designed standard value of concrete cube compressive strength.
This is a 32 size pipe body grouting steel pipe commonly used in grouting pipes. It is a customized product and can be customized according to user needs. However, the most common diameter specifications in the market at present mainly include 25mm, 48mm, 60mm and so on.
reform. Curing The concrete components shall be covered and moisture cured within 12h after pouring. The time of concrete curing by watering shall not be less than 7 days for the concrete mixed with Portland cement, ordinary portland cement or slag Portland cement; For the concrete mixed with retarded admixture or with impermeability requirements, it shall not be less than 14 degrees. The cured concrete shall be covered with plastic cloth, and all exposed surfaces shall be tightly covered,SoletracyGrouting flower tube, and condensed water shall be kept in the plastic cloth.
Before the installation of the grouting pipe, it is necessary to check whether the processed support is vertical to the grouting pipe fitting, and correct the non vertical support; Then install the grouting pipe on the bracket and fasten it.
In order to ensure the good flatness of the road surface,SoletracyAdvance grouting small conduit, the road surface should be paved first, and then the Hainan grouting pipe should be slotted and installed. The grouting pipe has become the preferred pipeline for long-distance gas transmission in residential areas, factories, and gradually replaced the traditional galvanized steel pipe to become the mainstream of the market. There are many connection methods for the grouting pipe, which can be constructed according to the difficulty of the terrain. It has a service life of 60 years, The advantages of not easy to corrode have established the superiority of grouting pipe in the market. Next, Xiaobian will tell you about the five applicable conditions of the grouting pipe.
Soletracy. The fast cutting device in the hole of the underground grouting pipe according to claim 1, wherein the outer diameter of the cutting rotating device is 2 mm smaller than the inner diameter of the grouting pipe.
The detection pipes can be welded or bundled inside the reinforcement, and the detection pipes should be parallel to each other.
Chemical grouting chemical grouting materials are mainly used in water glass and organic polymer grouting materials.