Use of grouting machine repair cracks in the construction plan

grouting machine repair cracks in the principle of high pressure chemical grouting and plugging technology is to use the machine produced by continuous high pressure grouting, chemical material liquid infusion to internal crack in the concrete, and the water in the seam edge out completely, completely fills the gap and achieve the goal of water stop. 1. High pressure ( Generally can reach more than 20 mpa) And stable and reliable, and can make chemical grout completely into the deep inside tiny cracks, concrete structure water effect is good. 2. Filling slurry technology mature, variety complete, basically has realized the one-component finished product production, can be blended, stable quality, in open barrels can be used. Slurry chemical corrosion resistance, non-toxic, environmental protection, can the permanent waterproof after curing. 3. Construction technology is simple and easy. Construction speed is quick, quick, the water sealing results once and for all. Workers labor intensity is small, the construction efficiency is a traditional construction method of 5 ~ 10 times, the traditional approach cannot match. 4. Construction season, weather, without limit, can be used for various projects, including maintenance, repair engineering, water engineering. Comprehensive construction cost is low, the economic benefit is remarkable. Construction technology of high pressure chemical grouting leakage by trained personnel and professional construction team of construction equipment construction. 1 clean: detailed examination and analysis of the leakage situation, determine the grouting hole location and spacing. Clean up need construction area, chisel regions, and in addition to the concrete surface to ensure that the surface clean and moist. 2: drilling using electric hammer drilling tools for drilling along the fissures, such as drilling grouting and the diameter of the mouth ( Check water needles) Diameter, Angle 45 ° appropriate ≦ drilling, drilling depth ≦ two-thirds the thickness of the structure, drilling must be through the cracks. But shall not be structure through ( After the wall except grouting) Drilling and crack spacing ≦ 1/2 the thickness of the structure. Borehole spacing 20 cm ~ 30 cm. 3 buried in the mouth: installed in the drilled hole grouting mouth ( It still water needles) And special Allen wrench tight, no space between the drilling grouting around the mouth and, not leaking. Use the high pressure cleaner, wash seam: at 6 mpa pressure grouting into my mouth clean water, observe the water point, and put dust in the seam clean. When seaming: sew washing water seepage of fracture surface with cement based waterproof material ( Permeability plugging type 1) Closed treatment, the purpose is not run pulp during filling and chemical pulp. 6 grouting: using high pressure grouting machine to hole perfusion of chemical grouting epoxy grout. Facade grouting order from bottom to top; Plane can be from the beginning of the end, puckering one continuous. After pulp out when adjacent hole begins to maintain pressure and 3 ~ 5 minutes, then stop the hole grouting, and adjacent grouting injection hole. 7 open mouth: after grouting, confirm that no leakage can be removed or broken exposed grouting mouth. Clean up spill out of the filling slurry has solidified. In cement based waterproof material (8 seal: Permeability waterproof model 1) Grouting repair and sealing mouth processing. With one-component waterproof: pa waterproof glue to fill part with three times ( At the end of coating, the coating, surface coating) Width of 10 ~ 20 cm, grow 20 ~ 30 cm at each end. Commonly used auxiliary machinery equipment material 1. High pressure cleaning machine, used for washing seam. Work pressure is 6 ~ 8 mpa, spray gun to deserve to go up on the head can use butter. 2. Electric hammer, impact drill: used for drilling, often choose 10 ~ 14 mm in diameter, length of 35 ~ 40 cm of drill bit. 3. Waterproof cable: 3 * 2. 5, coil with a power socket. 4. Acetone, is used for washing filling machine, etc. , also can be used as the diluent of epoxy grout. 5. Cement-based waterproof material ( Waterproof, plugging) : used for joint sealing and sealing. Chemical grouting plugging is concrete defect fix an effective construction method. In water conservancy and hydropower, tunnels, municipal, industrial and civil construction in areas such as widely used. With the new equipment, the use of new equipment, new material, not only to improve the construction quality, also greatly improve the working efficiency, shortening the time limit for a project, reduces the construction cost, has the good economic efficiency and social benefits. Use of grouting machine repair cracks in the construction plan