Flexible waterproof casing in the longitudinal through the wall attention measures

Flexible waterproof casing in the longitudinal through the wall attention measures
The main reason for choosing flexible waterproof casing for construction is its low-temperature flexibility, heat resistance, tensile and elongation resistance, aging performance, soluble content and other characteristics. Flexible waterproof casing according to the standard requirements. Elastomer modified asphalt waterproofing roll-roofing material heat resistance: Type I 90 ℃, Type II 105 ℃, the test does not run drip; plastic modified asphalt waterproofing roll-roofing material best heat resistance: Type I 110 ℃, Type II 130 ℃, the test does not run drip. Soft waterproofing membrane tensile and elongation indicators are qualified, depends mainly on the quality of the tire base material. Some enterprises in order to reduce costs, often using poor quality tire base. The aging performance of the product determines the service life of the product, that is, whether the product can maintain a stable product quality after being put into use to withstand environmental conditions.
 
Rigid waterproof casing is applicable to the installation of waterproof casing for drinking pools. It is carried out after filling with asbestos cement. When filling the sealing paste, it should ensure that the contact surface of the joints is free of rust, paint, dirt, clean and dry... Flexible waterproof casing is generally suitable for pipeline through the wall subject to vibration or waterproofing requirements of strict structure; if the wall at the penetration is a non-concrete wall, it should be replaced with a concrete wall, and the sleeve must be cured on the wall at one time. Inside; waterproof casing construction is used in construction, chemical industry, steel, water, sewage treatment and other units. When the pipe passes through the underground inspection well, it needs to go through the wall longitudinally, which requires the flexible waterproof casing to meet the requirements of the longitudinal device when it is installed. Very often, the seemingly simple operation cannot be ignored. The following are some of the measures that should be taken when the flexible waterproof casing goes through the wall vertically:
1 . When pre-buried holes in the wall, must be greater than one-fifth of the outside diameter of the flexible waterproofing casing, so that the pre-buried holes are too small and can not be installed;
2 . When pouring concrete, the flange gland and rubber seal should be removed in advance to avoid rupture of the gland and seal due to excessive pressure during pouring;
3 . Protective measures should be taken around the flexible waterproof casing to prevent the concrete from blocking the bolt holes;
4 . After the installation is completed, because the concrete can not reach the ideal state of solidification in a short time, in order to prevent gravity caused by waterproof casing off, should be installed on both sides of the horizontal tensioning device