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  •   聚氨酯灌漿材料(WPU) Polyurethane Grouting Material (WPU)

      Polyurethane Grouting Material (soluble) is a new type of grouting material used for concrete crack patching, grouting and blocking of water leakage, curtain anti-seepage, reinforcement and strengthening in civil engineering projects, hydraulic and hydroelectricity projects, transportation projects, underground projects including water pools, dam bases, tunnels, mines etc. It reacts with water immediately, expands quickly and generates a kind of colloid which is insoluble, high-strength and high resilient. So the material performs well with a big water content and infiltration radius.

    Ⅰ. Product Characteristics
       1. The slurry reacts with water and generates a insoluble solid which can be used to block strong gushing water or stop the running water in the foundation.
       2. Air is released when the solid is generated. The air can further press the slurry into loose clearance, which can completely fill the porous structure or fracture formations with the slurry.
       3. polyurethane produces strong adhesive force with soil and forms high-strength and resilient solid which can prevent soil deformation, cracks and collapse, thus reinforce the foundation.
       4. The viscosity and curing rate can be adjusted. Investment is limited due to simple grouting equipment and techniques.
    二、技術指標:國家行業標準 Ⅱ. Technical Index: National Industry Standards
    序號 項目 WPU型指標
    1 密度 ≥1.00
    2 1粘度(mpa.s) ≤1000
    3 凝膠時間/S ≤150
    4 包水性(10倍水) ≤150
    5 不揮發物含量/%  ≥75
    6 發泡率/% ≥350
    serial number Project WPU Index
    1 Density(g/cm3 ≥1.00
    2 Viscosity(mpa.s) ≤1000
    3 Gel time(/s) ≤150
    4 包水性(10倍水) /s ≤150
    5 nonvolatile matter content /%   ≥75
    6 foaming capacity /% ≥350



    Ⅲ. Construction Technology
       1. Check carefully the leakage parts clear the dirt around the cracks for grouting.
       2. Hole Arrangement: cut grouting holes at cracks, cut slant holes for deep cracks to cross the quilt top. Commonly 0.2-0.5 meter space between each hole and one half of the concrete thickness as the depth of the holes.
       3. Crack Sealing: put in grouting nozzle and seal the cracks with jet cement.
       4. Grouting: set the grouting pressure and amount according to the specific crack conditions. When slurry can be seen in the neighboring hole, move to it, grout at the named pressure till the finishing grouting standards.
       5. Remove the grouting nozzle when slurry is solidified and seal the crack with jet cement.
       6. Clean the grouting machine and other tools with acetone after completing all the work.

    Ⅳ. Note
       1. The construction work shall be carried out under the instruction of professionals and necessary protection tools shall be applied.
       2. Professional grouting machines shall be used, preferably type LB-518 grouting machine.
       3. The slurry shall be avoided to get in eyes. In case it happens, clean with water immediately.
       4. The construction site shall be ventilated, smoke or fire-prohibited; Power safety shall be noticed.

    Ⅴ. Package, storage and Transportation
       1. 10 or 20 kg per bucket.
       2. Stored at dry, cool and ventilated places. Storage life one year unopened from the date of production.
       3. No crash, direct sunshine, exposure to rain or smoke during transportation.   Our company also provides polyurethane road sealing glue, polyurethane waterproof materials (single composition, double composition and for high speed railway sole use), oil-soluble polyurethane grouting materials, LB-518 High Pressure Grouting Machine.