Water-swelling rubber water bar fixing method

Abstract

The invention relates to a waterproof structure construction method, in particular to a water-swelling rubber water bar fixing method, which comprises the following steps of: preparing steel nails longer than 55mm; when the pouring of lower-layer concrete is finished, smoothing the surface of a construction joint, and inserting the steel nails at the interval of 800 to 1,000mm along the midline of the construction joint in a way that the nail point is upward and that the steel nails are embedded at least 15mm below the concrete and are exposed at least 40mm above the surface of the concrete; and when the concrete is solidified and has enough strength, forcibly pressing a water-swelling rubber water bar to insert the steel nails into the water-swelling rubber water bar and seal the construction joint because the lower surface of the water-swelling rubber water bar is close to the surface of the concrete. The water-swelling rubber water bar fixing method has the advantages of secure rubber water bar fixation, convenient and fast construction, no need of reserving a groove at the construction joint of the concrete, construction joint surface planeness easier to control than that obtained when the groove is reserved, and closer connection between the water-swelling rubber water bar and the surface of the construction joint.

Description

technical field [0001] The invention relates to a construction method for a waterproof engineering structure, in particular to a fixing method for a water-swellable rubber water-stop strip suitable for preventing leakage in construction joints of a waterproof engineering structure. Background technique [0002] At present, there are two fixing methods for water-swellable rubber waterstop strips to prevent leakage in the construction joints of waterproof engineering structures. One: grooves are reserved on the surface of the construction joints. 10mm trapezoidal groove, catch the water-stop strip along the seam, and stick it with special adhesive. However, to reserve grooves at the concrete construction joints, the method of placing wooden strips is generally adopted, and the placed wooden strips are squeezed by the concrete, so it is difficult to ensure the straightness and smoothness of the grooves, and the construction in the grooves falls and remains The dregs should not...

AI Technical Summary

Problems solved by technology

However, when this method is used to fix the waterstop strip, the strength of the lower concrete is already very high, and it is very difficult to nail cement nails; and when the waterstop strip is fixed, the steel bars on the upper wall have already been bound and formed, and it is difficult to fix it with a hammer, and it is difficult to ensure the quality of the fixation

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