Introduction to High Pressure Cement Grouting Machine
Infusion process Thoroughly inspect and analyze the leakage situation, determine the position and spacing of grouting holes. Clean up the area that needs to be constructed, chisel away the precipitates on the concrete surface, and ensure that the surface is clean. A. Drilling: Use a drilling tool to drill pressure relief holes around the hole, with a drill diameter of 14mm or 10mm. Tilt the hole at a depth of 5cm~10cm to the left or right of the low crack to half the thickness of the structure. Drill gradually from the lower part to the higher part, with a hole spacing of 25cm~30cm. As the cracks in the structure are generally irregular, special attention should be paid to intersecting with the fracture surface during drilling for effective injection. (To achieve good results, the distance between the holes can be shortened for carving)
Instructions for High Pressure Cement Grouting Machine
Adopting high-pressure grouting and water blocking treatment method, using oil-based foamed polyurethane. Oil based polyurethane quick plugging adhesive reacts with water, and since water participates in the reaction, the slurry will not be diluted and washed away by water. Under pressure, the slurry is poured into the gaps or holes of the concrete, while penetrating around the gaps and continuing to infiltrate into the concrete gaps, eventually forming a mesh structure, a low-density, water containing elastic body, with good adaptability to deformation and good water stopping performance.
Types of high-pressure cement grouting machines
4. Sealing seamSeal the joint with structural adhesive along the crack (on both sides of the crack)30～50mm）Apply a thick layer of about1～2mmThe structural adhesive. When applying glue, small holes and bubbles should be prevented, and it should be scraped flat to ensure reliable sealing.5. Sealing inspectionAfter the crack is sealed, conduct a pressure leak test to check the sealing effect. Leakage testing should be carried out after the structural adhesive has reached a certain strength.6. Configure slurryPrepare grouting materials on site according to the formulas and preparation methods of different grouting materials. The quantity of slurry to be prepared at a time should be determined based on the solidification time of the slurry and the feed rate.
