The three-stage water stop screw must be of good quality, economical and practical, so it is very important to compare the three-stage water stop screw in the early stage and choose the one with the least consumables. In terms of material use, production technology and tensile test, the manufacturer of water stop screw should pay attention to the matching degree of the threaded connection between the inner and outer rods and the matching degree between the outer rod and the nut in the early stage of construction operation. Another point is to pay attention to the construction operation method and strictly require processing.
Matters needing attention after construction of three-stage water stop screw
After the construction of the three-stage water stop screw, attention should be paid to the node treatment. Within each groove of the wall is the joint of the inner rod. This joint needs two coats of antirust paint in advance. In order to ensure that long-term corrosion will affect waterproofing, both inner and outer sides should be blocked, and then the grooves of inner and outer screw holes should be blocked with polymer cement mortar and compacted and polished. After the polymer cement mortar is dried, an additional waterproof layer is laid on the water-facing side of the wall, and the additional waterproof layer at the position of construction screws and polyurethane waterproof coating coil is waterproof. After the construction of interior decoration and exterior wall waterproof layer is completed, the interior decoration construction shall be carried out. Moreover, the outer rod and the joint nut are reused, so the storage link is also very important. After recycling, count the quantity, clean up the appearance of the outer rod and the joint nut, and make unified warehousing accounting, which is convenient for later statistical use. In addition, it is stored in a ventilated place without water. In order to ensure the applicability of the nut in the later stage, sprinkle some waste engine oil to reduce slight oxidation.
I hope the above can help you, thank you.