Mortar joint control method for antique ganged brick curtain wall

The invention discloses a mortar joint control method for an antique ganged brick curtain wall. The mortar joint control method comprises the following construction processes of (S1) cleaning a joint; (S2) slotting a guy wire; (S3) repairing; (S4) jointing; (S5) cleaning; (S6) inspecting the quality; and (S7) protecting a finished product. The mortar joint control method has the advantages that the appearance is attractive, and the defects of burrs, tongue dust, uneven joints, uneven bottoms and the like are avoided; a scraper-trough conveyer for jointing should be appropriate in width and square in edge angle, whether the depth of a seam meets the requirement or not can be judged according to the fact that the scraper-trough conveyer is flush with a wall surface, the thickness of the scraper-trough conveyer is increased, the rigidity of the scraper-trough conveyer is correspondingly increased, and the phenomenon that the joint has undulating ripples due to the fact that the long scraper-trough conveyer is so