echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Coatings News > Paints and Coatings Market > The roof leakage control scheme of reinforced concrete core barrel structure system.

    The roof leakage control scheme of reinforced concrete core barrel structure system.

    • Last Update: 2020-10-13
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    An international conference center is three-dimensional cylinder-shaped, a total of 12 layers, the use of steel structure framework - reinforced concrete core barrel structure system, slabs using reinforced truss self-bearing concrete slab system. Its engineering warranty period has passed, after site survey, mainly for the roof and daughter wall corner leakage serious, large roof has many leakage, roof sloped glass curtain wall and metal trench many leakage, underground negative roof plate and light skylight angle leakage serious.
    Conference Center overall stereoscopic map
    red marking site is the glass curtain wall sloped roof
    cause analysis
    roof and daughter wall is usually twice structural molding, roof structure board above the leveling, looking for slope and insulation and other structural levels, Due to thermal expansion, and in the daughter wall around the non-set gap seam buffer and directly push the surrounding daughter wall, so that the daughter wall shift changes and produce cracks through the inside and outside, resulting in roof leakage through the cracks into the room caused leakage .
    steel structure and reinforced concrete are two different materials, which shrink inconsistently under the effect of late temperature difference, new gaps appear, and rainwater seeps into the room through the crevices, causing leakage.
    roof and daughter wall leakage
    roof and daughter wall leakage flow to the 9th floor (12 floors in total)
    glass curtain wall and metal trench leakage
    repair program
    Upper roof seepage treatment
    First, roof detail node treatment
    demolition roof roofing platform, through roof pipe around the 1000mm range roof tiles to rigid protective layer to 1:2.5 cement Mortar protection layer, reserved the original waterproof layer tie-up, demolition area and non-removal area with leak-blocking treasure to seal, the grass-roots clean up, keep the grass-roots flat and dry, roofing platform, through roof pipe and 1:2.5 cement mortar connection four Zhou chisel groove, slot embedded sealant, yin and yang corners on both sides of the brush non-cured rubber asphalt waterproof coating plus polyester cloth to strengthen, in the treatment of the grass on the overall brush non-cured rubber asphalt waterproof paint, and the original waterproof layer. Side painting non-cured rubber asphalt waterproof paint, side-paved SBS modified asphalt waterproof coil (SBS II.PY M 3), the edge of the hot melting paste, the edge should squeeze out the asphalt strip, with the original waterproof layer, waterproof coil on the roof pipe, pipe hoop fixing, sealing paste seal, roll on the roofing platform, pressure strip fixed, sealing seal. After the water storage test is qualified, the original structure level of the roof is restored.
    2, inter-layer slurry
    through the hole will repair the No. 1 grout material perfusion to cement mortar to find a flat layer---

    roof and daughter wall corner waterproof treatment:
    1) remove daughter wall and roof angle 1000mm range (120mm thick steel truss self-contained concrete slab--- 1:8 cement ceramic concrete building looking for slope, thinnest 30mm---20 thick 1:2.5 cement mortar to find flat layer--- Glue dilution to do the basic treatment agent ---2mm reactive polymer cement coating--- polyester tire I type SBS waterproof coil ---2mm reactive polymer cement coating---40 thick extruded polyphenyl insulation plate ---40 thick C25 reinforced fine stone concrete ---sllowed light-colored floor tiles) roof structure layer to structural plate, remove daughter wall facade aluminum sheet, Exposed the original waterproof layer of the mouth part, the grass clean up, keep the grass level dry. Reserve the original waterproof layer to connect, the demolition area and non-removal area seams with the leak-blocking treasure for blocking;
    2) daughter wall position non-cured rubber asphalt waterproof coating , 3mm thick SBS modified asphalt waterproof coil (SBS II.PY M3), to be connected with the original waterproof layer, metal press fixed, sealant seal;
    3) water storage test qualified, restore the structure of the above structural levels, restore the daughter wall facade aluminum sheet, seam heavy anti-sealing sealant.
    In-person roof waterproof treatment
    will clean the roof surface, roof surface rigid protective layer has cracks on both sides of the non-cured rubber asphalt waterproof coating plus polyester coating to strengthen treatment, water drop and rigid protective layer seam part chisel groove, slot fill sealant. Keep the grass-roots flat and dry;
    in the treatment of the grass on the edge of the brush non-cured rubber asphalt waterproof paint, while laying 3mm thick SBS modified asphalt waterproof coil (SBS II.PY M 3), hitching edge hot melt paste, coil joint should squeeze out the asphalt strip. Waterproof paint and waterproof coils are turned over to the top of the daughter's wall.
    glass curtain wall and metal trench waterproof treatment
    glass curtain wall: the overall eradication of glass curtain wall aging crack sealant, heavy play (silicone) weather-resistant structural sealant;
    Metal trench: clean up the garbage inside the trench, metal trench and glass curtain wall seams to re-play weather-resistant structure sealant, water drop around the painting HCA-108 high-bounce acrylic waterproof coating with polyester cloth to strengthen treatment, in the treatment of the grass on the overall brush HCA-108 high-bounce acrylic waterproof coating plus polyester cloth.
    .
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.