BW-96 water swelling water stop

Water expansion and water stop strip placement method

I. Scope of application and conditions: BW-96 water-expansion water-stopping strip is suitable for the interface of concrete construction joint and post-casting joint. The concrete is poured twice, which can completely block the gap water seepage when it meets water expansion, replacing the traditional steel plate waterstop and Rubber water stop. Widely used in various underground construction projects and hydraulic projects such as water storage tanks, sedimentation tanks, basements, underground garages, subways, tunnels, culvert flood levees, etc. The water stop strip must exert the function of blocking water and impermeability under the condition of substantially closed constraints.

Second, the method of use;

a. Cast-in-place concrete construction joint: the concrete surface of the concrete will be chiseled, the water-stop strip paper will be removed, placed in the middle of the longitudinal width of the construction joint, and the pressure will be tightly combined to bond every 50cm. The adhesive bonding interface is overlapped and pressed up and down, and is nailed with cement nails.

b. Concrete crack: The crack is cut into a groove of 4 cm in width, the water stop strip is embedded in the joint, and pressed into the polymer cement coating twice.

Third, note:

a. The paste interface should be kept dry. The water stop strip should not be exposed inside the gap.

b. The interface between the water stop strip and the construction joint should be closely adhered. It should not be left in the direction of the construction joint and should not be covered by scum dust. c. The water stop strip should be fully wrapped by concrete with a thickness of >5cm.

d. Before the water stop is fixed, it should be avoided by rain or construction water before pouring the concrete.

e. When storing and transporting the water stop strip, avoid moisture and squeezing, and stacking should not exceed four layers.

f. When the concrete is vibrated, the vibrating bar should be prevented from touching the bottom of the water stop groove to occupy 1/3 of the groove depth, and the rest of the groove should be smoothed with cement mortar.

four. Packaging parameters:



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