SHANGHAI KWONGFAT TRADING CO.,LIMITED

1, look for cracks: for moisture at the grass-roots level, water cleaning, the first stay at the grass-roots level, surface slightly when all is clean, carefully looking for cracks, coloring pencil or chalk well marked along the fissures; Base for dry, clean up after use air pump or blower, in addition to the surface dust.

2, drilling: according to the thickness of the concrete structure, crack distance is about 150-350 mm, cross hole on both sides along the fracture direction. Pitch should be according to the actual situation and decide, with two hole grouting cracks in cement grout intersection for the principle, general just at the beginning of the pitch should be 300 mm; The size of the aperture, should according to form a complete set of water stop needle size, use as a mark of 13 mm drill bit. Pore and fracture cross section should be 45 degrees to 60 degrees, and cross the floor in the middle of a third range.

3 needles, buried check water: water needles to form a complete set of components, is the fittings slurry into a crack, embedded application tool clamp, and to ensure that the rubber part and the needle hole wall dry before using, otherwise easy to cause skid when fastening.

 

1, drilling for embedding needle: find the leakage point, choose good injection points, with 14 percussion drill bit, drill holes, used for buried water needles, drilling must cross around, each parallel hole about 20 cm;

2, buried water needles: insert the needle hole, using a wrench, tighten until check the rubber tube expansion of the water head, to prevent grouting slurry and leaking out; Be careful when you tighten the water needle gently twist;

3, grouting process: the high pressure grouting machine with one side of the head to check water butter needles, open switch valve of the high pressure grouting machine, can begin grouting;

4 and sealing drilling point: in order to beautiful, must be in square holes point wall plastering cement and lime, have time to wait for the next day best to dial needles, if don't have time, suggest that every two hours and then the needle, and let the filling slurry have plenty of time and chemistry of aquatic products, to perfect the effect of seepage.