Stress-free water-washing chiseling method

Abstract

The invention provides a stress-free water-washing chiseling method, and belongs to the technical field of concrete surface chiseling. The method comprises the following steps of, carrying out comprehensive inspection on formwork before construction, preparing chiseling solvent, cleaning the surface stains of the formwork, using a brush to uniformly coat the prepared chiseling solvent on the formwork in a part to be chiseled, smearing the formwork uniformly, and fabricating the formwork for pouring concrete after the air drying of the chiseling solvent; removing the formwork after the concretestrength reaches the specified requirement of the corresponding structure; immediately washing away the laitance with high-pressure water after removing the formwork, and exposing aggregate; and checking whether there is a place where the chiseling solvent is not applied, wherein the chiseling solvent is a mixture containing hydroxyl groups, and the chemical formula of the chiseling solvent is C12H22O11. The method solves the problems of poor effect, low efficiency, high cost, large noise, dust pollution and the like of the traditional concrete chiseling process.

Description

technical field [0001] The invention relates to the technical field of chiseling on concrete surfaces, in particular to a stress-free washing chiseling method. Background technique [0002] More than 90% of expressway bridges are erected with prefabricated T-beams or box girders first simply supported and then continuously. The wet joints and construction joints of concrete structures need to be chiseled for construction, such as road bridges, especially prefabricated T-beams or boxes. The beams are first simply supported and then continuously erected. Before constructing wet joints, the concrete surface of the flange edge of the T-beam, the end of the diaphragm and the end of the beam must be chiseled clean to expose fresh stones. The most common chisel method is manual chisel Chiseling, but because there are many reserved connecting steel bars in these parts, workers need to spend a lot of energy to do it seriously and responsibly, otherwise the quality of wet joint conne...

AI Technical Summary

Problems solved by technology

[0017] The present invention provides a stress-free washing chisel method for solving the common quality problems of traditional concrete chiseling process such as poor effect, low efficiency, high cost, high noise and dust pollution.

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