Graphic, grouting plugging construction process

In the waterproof construction, many friends will choose to adopt method of sealing of high pressure grouting. But should pay attention to what matters in the grouting plugging, grouting machine simple failures, how should handle in time. High pressure grouting plugging mechanism: high pressure grouting plugging is the use of high voltage power, from mechanical to water-soluble polyurethane chemical grouting materials into concrete cracks. The crack formation of chemical bond; The pore formation on the surface of the high strength bolt; High pressure under the push of filled all the cracks. High pressure grouting plugging is use of high pressure grouting machine, water soluble polyurethane chemical grouting materials into concrete crack, when slurry meet the moisture in concrete crack quickly dispersion, emulsification, expansion and consolidation, the consolidation of the elastomer filled all the cracks, the water completely blocked in the concrete structure, in order to achieve the purpose of water plugging. High pressure grouting and plugging technology is an internationally advanced level of high-pressure airless perfusion waterproof technology, is a new technology of water-soluble grouting material in the developed countries use. Construction technology and procedure: entrance equipment workers - Hole location point - Drill hole - Slurry mixing - Grouting - One hole, construction preparation, roof crack ooze water: 1 on the roof of drill hole depth less than 1/2 thickness, thickness of buried after check and tighten fixed water needle injection special reagent; Distribution of grouting holes distance of 20 ~ 30 ㎝. 2, water seepage grouting hole: on direct drilling grouting hole cover, and the injection potions, stay material completely remove water needles after curing. 3, when all the leaking point after high pressure grouting after reaching the purpose of completely waterproof stop leakage, can purify water needle, and then use special waterproof mortar joint pinhole, to restore its original appearance. 2 1, ratio of slurry, construction key points: to adopt the accurate measurement of measuring tools, according to the design formula ingredients. 2, first find out the basement roof crack leakage point, along the leaking point around 500 mm in the skin to remove, structure layer. 3, the leaky seam with steel brush ( Point) , brush clean, the surface must not have fugitive dust, sand, etc. 4, all the cracks and funnelled with permeable crystallization type waterproof mortar jointing seal. Parts: 5, putting holes in the cloth in electric drill holes, layout of grouting needles, butt joint grouting machine. 6, the injection grout mix start grouting, grouting pressure of 200 ~ 750 kg/c ㎡. 7, after the grouting with permeable crystallization type waterproof mortar hole sealing. 8, grouting: according to the requirements, strict control of each hole grouting volume, speed, grouting pressure, the pressure control between 200 ~ 750 kg/c ㎡ ( Can be adjusted according to the site situation) 。 Grouting should also pay close attention to slurry flow, when pressure is 9, suddenly rising and falling, slurry overflows, should immediately stop the grouting. Must identify the cause of abnormal and take necessary measures, By adjusting the parameters of the grouting, shift, DaXie holes etc. ) May continue to grouting. 1, 3, construction points for attention in construction of perfusion, under the premise that ensure safety, please wear gloves and protective glasses, and it is recommended to use the manufacturer set specified grouting materials, water stop needles and related accessories. 2, every time after the construction completion, without need for grouting should be timely with toluene and acetone machine to clean clean, banned drug stay in the machine for a long time, such as sit idle when advice after the cleaning, add 50 cc lubricating oil to the machine cycle. 3, the particles in the liquid to ban or perfusion pressure ultralimit construction ingredients: such as mortar, cement, otherwise easy to cause heavy load gear shaft fracture, high pressure pipe burst, pressure gauge and vacuum pump pu damage, etc. 4, in ordinary oil for normal test pressure, not to use the liquid viscosity ( Such as toluene, acetone, water, etc. ) Test pressure. Four, troubleshooting 1, without pressure when machine is running or not: (discharge reasons 1) Blocking in VAT ( 2) Pump residual foreign matter ( 3) Pump axis wear: (2, troubleshooting methods 1) Remove VAT internal obstruction ( 2) Loosen the pump front of tee joint, remove the spring and the steel ball, the porosity of the finger seal pump front and toluene pour inside the tank, press the switch machine operation for toluene to sundry rushed out of the pump, check the back can be installed inside the pump completely clean after. （ 3) Replacing new pump 3, construction found to leak slurry, the piston rod and pump can be pumped back end screw sealing ring or replace the pump.