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Service project

Floor waterproof

Floor waterproof

First, the reinforced concrete slab, thermal insulation layer on the leakage of rigid waterproof roof
  (A) practice of roof: framing roofs of the main practices for 12 cm thick layer of cast reinforced concrete roof structure, 6~10 cm thick perlite insulation, leveling 2 cm and 4 cm thick layer of fine aggregate concrete rigid waterproofing layer around the brick parapet, roof water for PVC pipe drainage within the organization.
  (B) leakage: roof leaks, especially embedded slab chandelier junction box, more than half of indoor water, storm drains, water leakage around the mouth.
  (C) leakage reasons analysis and treatment:
  1. slab leak for two reasons: the embedded junction box floating in the slab, made directly from the junction box under the seepage of rain; Threading pipe float within the slab, causing local crack top, lateral flow of rainwater along wall junction box.
  Control method: use nails or wire Threading pipe and junction boxes and other objects fixed in the template to ensure that embedded within the slab object at the bottom of the slab, plate inside box, line pipe of sufficient height on concrete floor, and at the junction box top reinforcement mesh configuration, ensure that the box, tube top of concrete cracking.
  2. the causes and prevention of crack and seepage of rigid roof: cause: network reinforcement of reinforced concrete should be kept in reinforced concrete 1 cm under the surface, due to careless construction workers, the fine stone concrete steel mesh fell on the lower, causing the upper plain concrete rigid waterproofing layer layer, resulting in the crack and leakage of rigid waterproof layer.
  Control method: when pouring concrete, height should have special responsibility for the steel mesh design, to cover the top of the concrete, plate vibrator for last tap, light maintenance.
  3. rain water pipe leakage and prevention: cause: because of the roof fell into the water, tube on the lid should be covered in the rigid waterproof layer below the surface of 0.5 cm. In order to ensure this size, but neglect the lid of the tube and nozzle combination of relationship, so that rainwater from the tube directly into the insulation along the top cracks into the Interior roof leakage.
  Control methods: built-in water tube should be properly embedded high, then according to the rigid waterproof full-height cutting excess tubes, tube CAP and Guan Koulian as a whole. So that not only meets the spout in appearance, and rain water directly into the water tube from the nozzle into the roof so as to avoid the phenomenon.
  Second, powder and water repellency waterproof roof leakage in
  (A) practice of roof: a workshop, two-story frame structure, roof procedure for hollow slab, powder and water repellency waterproof layer, 3 cm thick layer of cement mortar, surrounded by brick wall, roof drainage drainage outside the organization.
  (B) leakage: the workshop uses two years after, large area leakage of roof and outer wall.
  (C) analysis of leakage causes and treatment methods.
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