Construction method of transverse joint and vertical joint of outer wall of prefabricated sandwich heat-preservation shear wall

Abstract

The invention discloses a construction method for a transverse joint and a vertical joint of an outer wall of a prefabricated sandwich heat-preservation shear wall. The method comprises the followingsteps: firstly, correcting the levelness and the perpendicularity of a component hoisted in place to meet the design and specification requirements; adhering self-adhesive rubber sheets to the inner sides of the vertical joints of adjacent components and enabling the rubber sheets to extend to two sides of the vertical joints, and conducting waterproof sealant construction on the outer sides of the rubber sheets; conducting grouting cavity plugging operation from the rubber sheets of the transverse joints of the adjacent components to the transverse joint spaces of the inner side edges of thecomponents, then stuffing PE rods, and conducting waterproof sealant construction on the surfaces of the transverse joints; conducting coating construction on the outer wall facades of the components,adopting polymer cement mortar for filling concave positions of the transverse and vertical joints, after drying, applying plain cement paste, covering the surfaces of the transverse and vertical joints with alkali-resistant glass fiber gridding cloth and enabling the alkali-resistant glass fiber gridding cloth to extend to two sides of the joints, and plastering waterproof outer wall putty on the whole outer wall facade through scraping; and finally spraying a stone-like paint decorative surface layer. The method effectively solves the problems of leakage of the outer wall and cracking and falling of the coating, improves the construction quality of the outer wall, and achieves the purposes of attractiveness and durability.

Description

technical field [0001] The invention relates to a construction method for a transverse joint and a vertical joint of an outer wall of a prefabricated sandwich thermal insulation shear wall. Background technique [0002] With the vigorous promotion of prefabricated buildings, the assembly rate of concrete prefabricated parts has gradually increased. However, the treatment of the transverse joints and vertical joints of the outer wall of the prefabricated sandwich thermal insulation shear wall has become a major problem at the construction site. Seams and vertical joints can easily lead to leakage of the exterior wall and cracking and peeling of the exterior wall paint, which causes serious quality problems in the construction of the exterior wall and affects the overall aesthetic performance of the exterior wall. When the horizontal and vertical joints of the traditional external wall are constructed, there is no mortar on the outside of the waterproof sealant. When the tempe...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for the transverse joints and vertical joints of the outer wall of the prefabricated sandwich thermal insulation shear wall. Leakage and cracking and falling off of exterior wall paint improve the quality of exterior wall construction and achieve the purpose of beauty and durability

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