Nanchang Sewage Tank Settlement joint Leakage repair, crack repair of sewage pool * * * Waterproof leakage stoppage company, Pool fracture joint plugging company According to the actual situation of the project, it is first necessary to carry out waterproof grouting and plugging for the crack leakage parts, then carry out the flexible waterproof layer, and then carry out the rapid plugging and flexible rigid waterproof protective layer construction again. The waterproof and leakage blocking scheme of rigid protection and flexible waterproof is based on the requirements of the National Technical Code for Waterproofing of Underground Works. The construction procedures for waterproofing, plugging and structural reinforcement are as follows: 1 Construction joint A 70 mm deep and 60 mm wide "V" shaped joint shall be chiseled at the position and washed clean with water. 2. Fix the grouting channel and grouting pipe with the fast plugging spirit to fix the PE foam strip of the grouting channel. When fixing the PE foam strip, one grouting pipe shall be buried every 50cm. The grouting pipe shall be made of 10~13mm pressure resistant rubber Hose , the pipe has been used as a guide Water pipe It is also used as grouting pipe. 3. Grouting plugging and water stop and polysulfide flexible sealing waterproof construction shall start from one side to inject * * * grouting material - grouting plugging king. The grouting pressure shall be controlled between 0.3~0.5MPa, and grouting can be stopped and closed when a hole next to grouting emits grout valve Then grout from another hole to stop leakage, and then proceed in sequence. After all grouting is completed, observe whether there is leakage. If there is still leakage in some places, supplement grouting from the nearest hole until there is no leakage. 1. Grouting and caulking method: remove the filler in the original fracture crack, clean it to the surface of the waterstop, and then use the quick setting waterstop material for pipe drawing, pipe burying, and water diversion. The groove should not be filled to make room for caulking. A grouting nozzle should be buried every certain distance. When the quick setting material reaches a certain strength, The elastic plugging slurry can be poured through the grouting nozzle until the deformation joint no longer flows out of water. Then fill the upper part of the deformation joint groove that has been sealed with expansion rubber waterstop or elastic sealing material with the same width as the joint, and pour concrete on the surface for burying or trowel with cement mortar. 2. Sticking method: after grouting water stop and embedding elastic sealing materials for fracture cracks, synthetic * * * rubber sheets with large elongation and high tensile strength can be pasted on the cement mortar protective layer. The specific method is as follows: clean the cement mortar protective layer, require the base course to be flat and dry, paint the base course treatment agent on the base course, after its surface is dry, paint the matching adhesive on the base course and the cut sheet, and stick the * * * sheet when it is dry. The edges of both sides of the sheet are padded with metal battens and then fixed with nails. Then, the edges of both sides of the sheet are sealed with caulking paste to form multiple waterproof fortifications. Performance of plugging material: four * * * chemical materials A, B, C and D are matched to form liquid with good hydrophilicity. Water is the diluent; It is also a curing agent. It has deep permeability and can penetrate into the capillary joints of the concrete structure. Before solidification, it is as porous as water. The slurry will disperse and combine after encountering water, and then gel will be consolidated. The above plugging materials have good hydrophilicity. Water is both diluent and pressure fixing agent. The permeability is deep, and it can penetrate into 0.01mm gross cracks of concrete structure. Before solidification, it is the same as water, and its density is lower than that of water. After encountering water, the slurry is dispersed and combined, and then gelled and consolidated. Grouting is carried out in wet or gushing conditions. It has strong adaptability to water quality. It can be gelled in seawater and water with a PH of 3-13. The solid gel is an elastomer, which can expand when encountering water. It has dual functions of elastic water stop and water above. It is suitable for water conservancy, power, tunnels, subways, civil air defense Waterproof, impermeable and plugging treatment of various construction joints and deformation cracks in mines, etc. The plugging materials can be used in any proportion of mixing ratio, and can be prepared with different strength, different permeability * * *, different solidification time and different expansion times
