Leveling layer and the primary construction of det -

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Leveling layer and the primary construction of detailed structure of the quality of the roofing

mm significantly within the funnel to keep the water slope, the flow speed up to avoid nozzle clogging and poor drainage back and so on. 5.2 The roof structure of the primary treatment is directly related to the roof waterproofing effect, the construction of our weakest link. With the increasing use of functional buildings, inevitably on the building roof structure set various ancillary facilities. Therefore, increasing the difficulty of the roof waterproof construction, this structure plays a more detailed treatment of the importance of the roof, roof detail on the structure treatment compliance, is to improve water quality and effective measures. Data from the survey found that the roof of the leak, leaking details of the 80 nodes. Therefore, the detail node is a weak point on the roof deformation. Some synthetic polymer membrane for waterproofing structural deformation of sync and pull shelling crack, deformation of the structure layer and the details have not synchronized split and leaking shell. Detailed node has the following main parts: �� ditch: gutter, gutters, oblique groove; �� hole: water hole, anti-beam over the water hole, out of the water hole; @ root: daughter foot of the wall,[link widoczny dla zalogowanych], skylights root wall, high and low across the root, chimney root, root pipes, equipment and other basic root; �� joints: expansion joints,[link widoczny dla zalogowanych], settlement, seismic gap, cell gap; �� Edge: cornice edge, closed edge of the waterproof layer; �� angle: the Yin and Yang angle; �� Block: Device-based Block, Block, cable, line pylon. Where the roof structure must be masonry protruding good, good casting, pipe must be installed to prevent future t cut. For embedded parts, holes must be reserved (continued on page 30) * 30 * Chemical Construction Technology Volume 20 1998 3 (2) welding layer temperature control 100 \the hammer to reduce the residual stress, immediately after the heat treatment after welding, after the hot temperature of 200 �� ~ 250 ��, heat 1 hour or more. 5.2.3 after welding, after welding inspection and pressure test after 24 hours, respectively repair parts for magnetic particle inspection examination and found no defects exceeding. the sphere using 1 year,[link widoczny dla zalogowanych], we also connected to the spherical shell at the corner pillars and weld inspection and magnetic particle testing, found no excessive defects. 6 6.1 Conclusion Tank shell pillar connection with the fillet weld cracks, mainly by the existence of fillet weld slag defect. 6.2 spherical in prefabricated process, the pillars of the junction with the shell welding, welding technology to develop a reasonable and strictly enforced. while strengthening the pillars of the junction with the shell factory weld inspection. as far as possible the problem under control before use to ensure safe operation of equipment. 6.3 sphere in the inspection process, the pillars of the weld connection with the spherical shell , the magnetic detection test is indispensable. attention should be paid (the closing date lotus 1998-0205) (Continued from page 24) cloth well in advance. who must be wiped into the arc angle Yin, Yang angle, obtuse angle to wipe into radius between the 50 ~ lOOmm. internal drainage holes around the lower should be wiped into the pits, pick out the roof eaves unorganized drainage edge to set aside the first pressure roll groove collection. equipment base to stay around 20mm �� 20ram sub-lattice seam. prefabricated panels sewn plug shall be located separate compartments. The vertical and horizontal spacing control in less than 6m,[link widoczny dla zalogowanych], sealing cracks embedded material. gutters, gutter installed in the first fall-hole cup, fall-hole cup and the groove contact with the concrete at the bottom to stay embedded 1Omm �� 10mm gap seal materials. Mizuochi hole cup surface elevation is lower than the end of leveling the level of Amoy 20 ~ 30ram. to find a wipe slope leveling mortar real compacted drainage slope control at 2 or so. To wipe both sides of the ditch into a negative angle of the arc-shaped. do basic detail structure in order to eliminate this weak link in the roofing bring hidden dangers. to better ensure the water quality of the projects. 6 restoration example in the roof of a residential building renovation construction, the site visit found the following problems: the roof of local there hollowing of the total area of about 10. cut open and found the waterproof layer waterproof layer and leveling layer has been separated from the sand from the grass-roots phenomenon occurs. parapet at eaves , outlet, etc., off the cracked asphalt felt waterproof layer appears. leakage occurs, causing the top corner of household penetration vaginal wall rain, damp walls. thus decided to adopt the overall mortgage In addition to the waterproof layer, to retain the program screed construction. construction, the first layer of the roofing removed. leveling layer of sand from some of the grassroots with a wire brush to hard, clear cleanly. watering wet screed. to be soaked in water after the original surface water mark screed , the brush glue mixed 3Z ~ 5107 increase in bond strength of Prime pulp, make do l5 ~ 20mm thick leveling layer, and in the eaves, parapet wall, the pan of water at the required details such as properly handled, water conservation and air-dried to waterproof layer construction conditions, the re-construction of the waterproof layer. roof renovated treatment. has been for 4 years no leakage occurred. (the closing date of 199,[link widoczny dla zalogowanych],803 a lotus -09)

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