Grouting needle packers, also known as injection needle packers, are a specialized type of injection packer used for a variety of concrete repair and grouting applications. Here are some of the common uses and applications of grouting needle packers:
1. Crack Injection:
– Grouting needle packers are widely used for injecting grout or sealants into cracks in concrete structures, such as walls, floors, or foundations.
– The narrow profile of the needle packer allows it to be inserted into narrow cracks, enabling the precise delivery of the repair material.
– This is particularly useful for sealing and stabilizing hairline cracks or other small concrete defects.
2. Void and Cavity Filling:
– Grouting needle packers can be employed to fill voids, honeycombs, or other small cavities within the concrete structure.
– The injection process using needle packers helps to ensure complete filling and penetration of the grout into the targeted areas.
– This application is common in concrete repair and strengthening projects, where it is necessary to restore the structural integrity of the concrete.
3. Concrete Slab Stabilization:
– Needle packers are used to inject grout or expanding foam into the soil or subgrade beneath concrete slabs, such as those found in floors or pavements.
– This process, known as slab jacking or slab leveling, helps to stabilize and support the concrete slab, addressing issues like settlement, voids, or soil erosion.
4. Concrete Anchoring and Reinforcement:
– Grouting needle packers can be used to inject grout around reinforcement bars or dowels, helping to secure and anchor them within the concrete.
– This application is common in concrete repair, strengthening, or retrofitting projects, where additional reinforcement is required.
5. Concrete Sealing and Waterproofing:
– Needle packers can be used to inject grout or sealants into concrete to fill and seal surface cracks, pores, or other defects.
– This helps to improve the concrete’s resistance to water intrusion, weathering, and other environmental factors.
| Picture | Model | Diameter | Length |
 |
13x305mm | 13mm | 305mm |
