CGM high-strength non-shrinkage grouting material is easy to appear quality problems

CGM high-strength non-shrinkage grouting material CGM high-strength non-shrinkage grouting material problem solving concrete defect repair, repairing of concrete cracks, concrete from sand treatment, CGM high-strength non-shrinkage grouting material construction encountered problems, solutions and consulting - Li Gong - 15838304411. , ballast-surface phenomena: CGM high-strength non-shrinkage grouting material local surface phenomenon appears short of pulp and many small pits, pitting, rough surface formation, but no reinforced the leakage phenomenon. Technical guidance - CGM high-strength non-shrinkage grouting material Li Gong - 15838304411. The causes of 1. Rough surface template or adhesive slag cement and other sundry not clean, open mould grouting material surface is destroyed; 2. Template was not enough water damp or wet, component surface grouting material moisture is sucked, grouting material excessive water loss occur pits; 3. Template flat-fell seam is lax, local slurry leakage; 4. Template to isolate the coating uneven seam an agent, or local brush or leakage failure, grouting material surface and template binding pits; 5. CGM high-strength non-shrinkage grouting material vibrating untrue, bubble not discharge, parked in the template form pitting surface phenomenon. Prevention and cure measure 1. Template surface is clean, can not with hardened cement mortar etc sundry; Before watering CGM high-strength non-shrinkage grouting material, template should be watering full moisture; Template aperture, application felt paper, putty, wall tightly; Template to isolate the seam an agent should choose long-lasting, uniform coating, shall not be leakage brush. Grouting material should be layered homogeneous vibrating close-grained, to eliminate air bubbles; 2. Surface for painting, don't processing, surface paint, should be in the water piping parts fully wet, usable 1:2 or 2-1. Textured screeding with 5 cement mortar, the calender. Second, the surface is uneven phenomenon: CGM high-strength non-shrinkage grouting material surface uneven, or different plate thickness, surface rough. The causes of 1. After pouring of CGM grout material, the surface only beat with a spade, unused float leveling calender, surface rough; 2. Template is not supported on a hard soil layer, or insufficient bearing surface, or loose and bubble water, pour out the new CGM grout material uneven subsidence during early curing; 3. CGM high-strength non-shrinkage grouting material has not reached a certain strength, master cheng yen or material handling operation, concave surface appear uneven or marks. Prevention measures in accordance with the construction of the operation, after casting CGM high-strength non-shrinkage grouting material, should according to the level of control marks or play with potential float leveling, pressure light, after the final set water conservation; Template should have enough strength, stiffness and stability should be supported on a solid foundation, has enough support area, and to prevent flooding, to ensure not occur sink; When pouring grouting materials, strengthening inspection, strength of grouting material reaches 1. More than 2 n / ㎜ 2, has to be in on structure. CGM high-strength non-shrinkage grouting material formulation technology consulting - Li Gong - 15838304411.