Waterproofing construction method for basement of building engineering

Abstract

The invention discloses a waterproofing construction method for a basement of building engineering. The method comprises the following steps: S1, dust, sundries, oil stains and visible water on the surface of a base are cleared to make the surface flat and clean; S2, a control line for coil laying is released on the base, so as to accurately control the laying position and lap width of a coil andprevent dislocation, deflection and the like during coil laying; S3, on the basis of foundation treatment and elastic line positioning, construction of 1:2.5 waterproofing mortar is conducted on internal and external corners, the internal and external corners shall be round corners, and R of the arc of the internal and external corners is larger than or equal to 50. Waterproofing performance of inner reinforced concrete is strengthened by the PV100 waterproofing coil, and the PV100 waterproofing coil can form continuous and permanent full adhesion combination with poured concrete, so that water channeling is effectively prevented; the waterproofing coil is tightly adhered to the structure, cannot be affected by uneven settlement of the base, and construction of the next process can be directly performed without construction of a protective layer.

Description

technical field [0001] The invention relates to a waterproof construction method, in particular to a waterproof construction method for a construction project basement. [0002] technical background [0003] With the development of cities, basements are widely used. For example, shopping malls and residential areas often have two underground floors as parking lots. Since the basement is below the ground, the top, side and bottom are all in a water environment, and no attention is paid to the construction method. It is easy to cause water leakage in the basement and affect the use; [0004] At present, the basement waterproof construction method is generally to set a concrete cushion and cement mortar on the plain soil layer, then paste the asphalt waterproof membrane, then set the concrete protection layer, and finally pour the waterproof reinforced concrete floor and the building surface, and pass the asphalt waterproof membrane. However, the concrete cushion is easy to per...

AI Technical Summary

Problems solved by technology

[0003] With the development of cities, basements are widely used. For example, shopping malls and residential areas often have two underground floors as parking lots. Since the basement is below the ground, the top, side and bottom are all in a water environment, and no attention is paid to the construction method. It is easy to cause water leakage in the basement and affect the use;

[0004] At present, the basement waterproof construction method is generally to set a concrete cushion and cement mortar on the plain soil layer, then paste the asphalt waterproof membrane, then set the concrete protection layer, and finally pour the waterproof reinforced concrete floor and the building surface, and pass the asphalt waterproof membrane. However, the concrete cushion is easy to permeate, which will cause the asphalt waterproof membrane to contact with water for a long time, which will easily cause the viscosity to decrease or the waterproof performance to deteriorate, while the waterproof steel reinforcement

[0005] Concrete shrinks during the pouring process and easily causes cracks, or construction joints that appear due to different pouring times lead to water seepage

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