Lay coiled materials lay coiled materials in large area on the base surface of the base treatment agent which has been dried, snap the datum line, and bond with the hot-melt method; bake the bottom surface of coiled materials and the base surface with the spray gun to melt the asphalt on the bottom surface of coiled materials, roll the coiled materials forward while baking, and then roll them with the roller to extrude the air between the coiled materials and the base, so as to make them bond firmly with the base
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After the leveling layer is dry, it should be filled with ointment
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Formwork construction (1) the formwork shall be flat, the joint shall be tight, and there shall be sufficient strength and rigidity
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In the process of preparation and construction, the container of rubber material should be covered in time to prevent water evaporation and conjunctive or dry solid
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A small groove with 1cm width should be left around the pipe root casing, floor drain and water outlet
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Here are all you want.
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In order to ensure the coating thickness and construction quality, the process should be completed in the order of bottom coat → lower coat → middle coat → upper coat
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All pipes and bolts passing through the wall shall be well treated before the construction of waterproof layer
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It shall be wet before pouring concrete
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The curing time shall not be less than 14 days
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The plane should be paved to the corner first, and then the facade should be paved from the bottom to the top
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The thickness should be uniform
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Basement waterproof 1, mix proportion and materials (1) concrete composition materials
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(3) Before pouring concrete, the pipe shall be washed with pressurized water, and then the cement mortar shall be pressed
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The weak parts of basement floor, such as sump, elevator shaft, pipe root and deformation joint, shall be laid with the same additional layer as coiled material
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Cement mortar is used to build six edge waterproof foot protection at the root of the pipe to ensure that the shearing position is not cracked or damaged
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After the construction of waterproof layer in wet rooms such as closed water test toilet and water tank room is completed, there is no leakage after 24 hours of water storage, and then the surface layer or decoration shall be done
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The pipeline connection shall be straight and the turning shall be straight and slow
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Before the construction, the commercial mixing station shall test mix, check the slump, adjust the water consumption, and determine the construction mix proportion
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After the determination, it shall not be adjusted at will
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After the decoration, the secondary water storage test shall be carried out
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*Note: some of the contents and pictures are transferred from the Internet
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According to the requirements of the project, the test mix proportion shall be prepared
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(2) The length ratio of horizontal conveying pipe to vertical conveying pipe is not more than 1 ∶ 3
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(4) When the coating is applied, it shall be evenly stirred at any time, as far as possible, without local deposition; when the brushing construction is adopted, the direction of each brushing is perpendicular to the previous one; the time interval between each layer shall be subject to the previous one, which is dry and solid, but must be continuously applied
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Roof waterproof 1
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When the downcomer cup is buried, the joint between the downcomer cup and the socket of the vertical pipe shall be tightly filled with sealing materials to prevent water pouring in case of rainstorm
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(2) The water stop ring is welded on the split bolt to fix the formwork
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Building waterproof engineering is a divisional project to prevent the structure of buildings (structures) from being invaded by water and the internal space from being harmed by water
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There should be no reverse tenon in the direction of water flow for the paving at the intersection of vent and roof outlet pipe, additional layer should be pasted at the internal corner of vent, and the upper shear should be crossed and pasted
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The gutter, eaves gutter and gutter shall be sealed before painting
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Small area or internal and external corners and other parts that are not easy to roll brush should be carefully brushed with a brush dipped in the base treatment agent
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After removing the formwork, cut off the bolts along the edge of the concrete structure, brush the anti embroidery paint, and smooth with waterproof mortar
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(2) Wear flat shoes during construction operation, and avoid placing construction machines and tools on the waterproof layer that is not yet dry
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Due to the large amount of water flow in the gutter and cornice, it is often washed and soaked by rain, so the corner of the gutter and cornice should be coated with sealing material first, and then a layer of coiled material should be laid as an additional layer after drying
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Before waterproofing, all vertical pipes shall be constructed and the hole shall be tightly blocked with fine aggregate concrete
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Brush the base treatment agent
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The modified asphalt adhesive is diluted with industrial gasoline, stirred evenly, coated on the base with a long handle roller brush, and the coiled material is laid after 4 hours at room temperature
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Brush the base treatment agent on the clean base
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For cornice, the carcass material paved on the cornice end is cut and pressed into the groove, and then the groove is filled with sealing material
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The next process can be carried out only after the water is qualified, and the water storage test record shall be made
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Generally, modified asphalt coiled material shall be used for construction, which shall be firmly adhered
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(3) there shall be no wrinkles, bubbles, white stubble, edge warping and other phenomena
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If there is no leakage after 24 hours, it can be accepted
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(3) After the completion of the waterproof layer, the water test must be carried out, and the water storage time is more than 24 hours
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(5) The slump shall be managed and measured by a specially assigned person, and the slump value shall be adjusted in time and recorded in detail
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(4) Iron bars are placed at the feed port of the delivery pump to prevent large sundries from mixing into the concrete mixture
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After the basement exterior wall formwork is removed, the exterior wall waterproof construction is carried out, the foundation pit is backfilled in time, and the concrete is concealed
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Building waterproof engineering involves basement, wall body, wall floor, roof and many other parts of buildings (structures)
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Waterproof film (1) should be used in strict accordance with the specifications and with the use, the day used up
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When the concrete curing concrete enters the final setting, it shall be covered with double-layer grass curtain with color strip cloth and watered
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Base treatment: clean the protrusions and other foreign matters on the surface of the base
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(2) Gravel shall be selected for waterproof concrete, with mud content no more than 1%, mud content no more than 0.5% and crushing index no more than 12; medium coarse sand shall be selected, with average particle size no more than 0.5mm, mud content no more than 3% and mud content no more than 1%
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Therefore, within the range of 100 mm from each side of the base course of the internal and external corners of the roof, the waterproof layer shall be coated with sealing materials, and then the additional layer shall be paved
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In the construction of additional layer, parapet, downcomer, pipe root, cornice, internal and external corners and other details shall be added first
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The waterproof layer at the internal and external corners of the roof is easy to be cracked
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Before the construction of the flashing and coil end flashing parts, the coil should be paved first, and the length of the matrix material in the vertical plane should be sufficient
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There should be no pitting, missing brush and other defects
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The contact part between the roll material from the bottom to the facade and the permanent protective wall should be laid empty, and the additional layer should also be laid empty
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The concrete standard curing room and box are set up on site to strictly control the concrete curing environment
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The pump pipe joint shall be tight to prevent the pipe from being blocked by air in the pipe during construction
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Pumping waterproof concrete (1) reasonably arrange the position of pump truck according to the needs of the project to reduce the turnover times
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Exterior wall waterproof 1
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Toilet, kitchen waterproof 1, base surface treatment, base surface must be flat, clean, firm, no water, no leakage, internal and external corners should be made into arc angle
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The surface of base course paved with waterproof layer shall be clean, flat, solid and dry without hollowing, sanding and cracking
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Its function is to prevent water leakage and groundwater erosion within the design durability period of buildings (structures), and ensure that the building structure and internal space are not damaged
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Construction points (1) according to the slope of the ground, the thickness of the ground, the location of the datum line, determine the top elevation of the floor drain and water outlet
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Lay additional layer
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(2) When making the leveling layer, the corner arc should not be too large, otherwise it will affect the wall decoration
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Cleaning of base course
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