Building waterproof roll construction method

Abstract

The invention provides a building waterproof roll construction method. The building waterproof roll construction method comprises the following steps that pre-paving waterproof construction is conducted on a base layer; performing waterproof construction on the basement side wall; and performing waterproof construction on the basement roof. The building waterproof roll construction method has the beneficial effects that roll waterproof construction can be conducted on a base layer, a basement side wall and a top plate, the construction process is reasonable, waterproof roll lap joints can be treated, the good waterproof effect can be achieved, waste of waterproof rolls is avoided, and in addition, the construction cost is reduced. The construction method strictly meets the requirements of construction specifications, rapid construction can be achieved, the construction efficiency is improved, the safety of constructors can be protected, and practicability is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction waterproofing, and in particular relates to a construction method for building waterproofing membranes. Background Art

[0002] At present, building waterproofing membranes are a widely used waterproofing material, usually used for the roofs, basements, exterior walls of buildings and other parts that require waterproofing. Its main function is to prevent water penetration and protect the structure from water damage. Therefore, the construction of building waterproofing membranes is an important task to ensure the waterproofing of buildings. However, there are problems in the current construction process of building waterproofing membranes, such as unreasonable laying of waterproofing membranes, poor waterproofing effect and potential safety hazards during the construction process. Summary of the Invention

[0003] In view of this, the present invention aims to provide a construction method for building waterproofing membranes to solve at least one of the above problems existing in the prior art.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows:

[0005] A construction method for building waterproofing membranes includes the following steps:

[0006] S1. Carry out pre-laying waterproof construction on the base layer;

[0007] S2. Carry out waterproof construction on the side walls of the basement;

[0008] S3. Carry out waterproof construction on the top slab of the basement;

[0009] In step S1, the pre-laying waterproof construction process for the base layer includes:

[0010] S11. Base layer treatment;

[0011] S12. Lay a large-area TPR rubber self-adhesive film pre-laying waterproofing membrane;

[0012] S13. Treatment of the lap joints of the TPR rubber self-adhesive film pre-laying waterproofing membrane;

[0013] S14. Inspection and acceptance;

[0014] In step S2, the waterproof construction process for the top slab of the basement includes:

[0015] S21. Treatment of the base layer of the side walls of the basement;

[0016] S22. Apply a base layer treatment agent;

[0017] S23. Snap lines and position;

[0018] S24. Lay the membrane in a large area;

[0019] S25. Coil lapping and end sealing;

[0020] S26. Detail joint treatment;

[0021] S27. Quality inspection and acceptance;

[0022] In step S3, the waterproof construction technology for the basement roof slab includes:

[0023] S31. Repair of defects on the basement roof slab;

[0024] S32. Treatment of the basement roof slab base layer;

[0025] S33. Painting of the base treatment agent;

[0026] S34. Construction of the additional layer;

[0027] S35. Laying of the waterproof coil;

[0028] S36. Laying of the first layer of waterproofing;

[0029] S37. Laying of the second layer of waterproofing;

[0030] S38. Acceptance;

[0031] S39. Water storage test;

[0032] S310. Waterproof protection layer.

[0033] Furthermore, in step S11, the base treatment includes:

[0034] The base should be firm, flat, without obvious water and oil stains, and there should be no obvious water on the base during construction; if there is obvious water on the construction surface, leakage plugging or drainage treatment should be carried out in advance; the inner and outer corners can be made into 90° right angles and should be straight.

[0035] Furthermore, in step S12, laying the large-area TPR rubber self-adhesive film pre-laid waterproof coil includes:

[0036] First, the paving position of the coil should be determined. On the surface of the treated base, according to the width of the selected coil, leave the lapping joint size and carry out the coil paving construction; after paving, the coil should be flat and straight, with the correct lapping size and no distortion; the lapping of the second coil in the long side direction with the first coil is carried out according to the lapping guide line.

[0037] Furthermore, in step S13, the treatment of the lapping joint of the TPR rubber self-adhesive film pre-laid waterproof coil. After the large-area paving is completed, the lapping edges of the coil need to be treated, including:

[0038] S131. Long-edge bonding overlap: Reserve an 80-mm-wide area along the long edge of the coil. Only coat the self-adhesive film layer and cover it with a release film as the self-adhesive overlap edge. After aligning the long edges of the materials, the release film can be torn off for bonding overlap.

[0039] S132. Short-edge butt joint bonding: Use a butt joint bonding tape to bond the short edges of adjacent two coils flush to form a continuous waterproof layer. The width of the tape is 160 mm.

[0040] S133. T-shaped overlap: Cross overlap joints are not allowed in the overlap of waterproof coils. The short-edge overlap should preferably be staggered by 1 / 3 to 1 / 2 of the width of the coil. When multiple coils are laid with their short edges aligned, it is allowed that the long edges of the coils overlap them transversely to form a T-shaped joint. At the T-shaped joint, a single-sided self-adhesive tape with a diameter of about 80 mm is cut out for enhanced sealing treatment.

[0041] S134. Coil repair: For the already constructed coil waterproof layer, if any damage is detected on the waterproof layer during the inspection of subsequent processes, it should be marked with a black marker pen. At the penetrating damage points on the TPR waterproof coil, proper repair should be carried out before formwork erection and concrete pouring, and a single-sided self-adhesive tape is used to paste at the damaged area.

[0042] Further, in step S14, inspection and acceptance include:

[0043] Self-inspection by work process. When inspecting, use a crochet hook or screwdriver to check the joints, and repair immediately if any poor welding is found.

[0044] Further, in step S21, basement sidewall base treatment includes:

[0045] S211. The base surface should be flat, solid, without sanding or dusting, and the surface moisture content ≤ 9%.

[0046] S212. Clean the dust, sundries, and oil stains on the base. Clean the corners and pipe roots carefully. If there are different oil stains and rust, they should be removed completely.

[0047] S213. For the steel bars, pipe fittings, and bolts protruding from the base surface, they should be chiseled 10 - 20 mm into the base from the root and then cut off, and the cut-off part should be covered with 1:2.5 cement mortar. The coverage area should meet the flatness requirement of the base. The sharp hard objects and mortar lumps protruding from the base surface should be chiseled off. If they cannot be chiseled off, they should be covered with cement mortar plastering. The radius of the plastering arc should be greater than 300 mm.

[0048] The components passing through the base can only be subjected to waterproof construction after being installed.

[0049] S215. The yin and yang corners should be plastered into a circular arc or a 45° chamfer. The minimum radius of the yin corner is 50 mm, and the minimum radius of the yang corner is 20 mm.

[0050] Further, in step S22, applying a base treatment agent includes:

[0051] The base treatment agent should be stirred evenly before use; the application should be uniform and consistent without exposing the bottom, and the roll material can be laid only after it is completely dry.

[0052] Furthermore, in step S23, the line drawing and positioning include:

[0053] Before the construction of large-surface roll materials, the paving reference line should be popped up on the base surface according to the size and laying direction of the roll materials, so that the roll materials can be neat, beautiful and without large deviations during paving.

[0054] Further, in step S24, the large-area paving of the coiled material includes:

[0055] The direction of the roll material should be from top to bottom, perpendicular to the wall. After the position is aligned, tear off the self-adhesive film from top to bottom to let it droop naturally, and then use a brush to drive out the air between the roll material and the wall to ensure a firm bond.

[0056] First, unroll the coil to release the stress, and then lay it flat after it is fully unfolded, and keep it flat for 5-10 minutes;

[0057] Lay the roll according to the pre-fixed position, align the adhesive surface of the roll with the reference line and lay it flat on the base surface, lift the isolation film from the back from one end, tear off the isolation film at a uniform speed while pressing it tightly to exhaust air and lay it; when pasting the roll, tear off the isolation film evenly, and use a rubber roller to roll it forward and outward to exhaust air, so that it can be firmly pasted on the base;

[0058] When overlapping and laying the next roll of material, lift up the isolation film at the overlapping part of the lower roll, stick the upper roll flatly on the lower roll, and use a pressure roller to press and compact it.

[0059] Furthermore, in step S25, the coils are overlapped and sealed, including:

[0060] S251, the overlap width of the long side of the coil is greater than 80mm, and the isolation film is covered as the self-adhesive overlap edge. After aligning the long sides of the materials, the isolation film is torn off for bonding and overlapping. When overlapping, the isolation film at the overlap of the coil is lifted, and the overlap edge of the coil is compacted with a pressure roller or a long roller brush; when overlapping the short sides, the self-adhesive layer of the coil is bonded to the outer PET film, and the overlap width of the short side is 150mm. Use a pressure roller to roll and exhaust and compact;

[0061] S252, the short sides of two adjacent coils on the same layer should be staggered by at least 500mm; the long sides of the upper and lower layers of coils should be staggered by 1 / 3-1 / 2 of the width, and the short sides should be staggered by at least 500mm;

[0062] S253. Use sealing paste to seal relatively weak areas.

[0063] Further, in step S26, the detailed node treatment includes:

[0064] S261. Treatment of special-shaped parts: An additional layer is applied to special-shaped parts;

[0065] S262. The self-adhesive method is used for full adhesion construction of the additional layer;

[0066] S263. The waterproof coiled materials of the exterior wall and the floor slab are bonded through butyl tapes;

[0067] S264. The closing part of the underground wall is 500 mm higher than the designed outdoor ground level. When encountering door and window openings before reaching the 500 mm height, the waterproofing turns into the opening, and the closing part is sealed with a sealant and fixed with a closing strip and screws.

[0068] Further, in step S27, quality inspection and acceptance include:

[0069] After the construction of the waterproof layer is completed, quality inspection and acceptance are carried out. The floor slab and the side wall are inspected and accepted by visual inspection. For the garage roof slab and the roof, visual inspection and acceptance are first carried out, and then a water storage test is carried out.

[0070] Further, in step S31, the defect repair of the basement roof slab includes:

[0071] After the basement roof slab is cleaned, the surface dust is removed with a high-pressure air gun and rinsed clean. The concrete surface crack positions are evenly coated with waterproof paint twice. The first-piece sample position needs to be subjected to a water avoidance test for 24 hours.

[0072] Further, in step S32, the basement roof slab base treatment includes:

[0073] S321. The groove defects of the base are leveled with 1:2.5 cement mortar;

[0074] S322. The pipe roots and the internal and external corners protruding from the roof slab are plastered into arc corners with 1:2.5 cement mortar;

[0075] S323. Before laying the coiled materials, the sundries on the base surface are removed. The base is dry, and the moisture content is not more than 9%. Detection method: A 1m * 1m square coiled material of the same quality is laid flat on the waterproof base. After being exposed to direct sunlight at noon for 3 hours and then lifted, the waterproof layer construction can be carried out if there are no water marks on the covered part of the base and the coiled material.

[0076] Further, in step S33, the brushing of the base treatment agent includes:

[0077] The base treatment agent is used. After being diluted, it is evenly brushed on the base surface once. After the base treatment agent is dry, the construction of the additional layer at the internal and external corners and the wall coiled materials can be carried out.

[0078] Further, in step S34, the construction of the additional layer includes:

[0079] For the post-cast strip and the parts of internal and external corners, an additional layer of the same quality coiled material is laid. Cut the coiled material into corresponding shapes for spot bonding, with a width of 500 mm. The width of the additional layer is not less than 500 mm, and both sides are evenly lapped by 250 mm.

[0080] Further, in step S35, the laying of the waterproof coiled material includes:

[0081] The full bonding method is adopted for the bonding between coiled materials. The lap width: for flat laying, the long-side lap is not less than 100 mm, and the short-side lap is not less than 100 mm; for vertical wall laying, the long-side lap is not less than 100 mm, and the short-side lap is not less than 150 mm. The lap joints of adjacent waterproof coiled materials are staggered by 1 / 3L from each other, and are fixed with steel nails of aluminum alloy closing strips and caulked with bituminous oil.

[0082] Further, in step S36, the laying of the first layer of waterproofing includes:

[0083] The material used is a 2-mm-thick self-adhesive polymer modified bituminous waterproof coiled material. Laying is carried out along the north-south direction. For the planted roof of the garage, the full bonding method is adopted for construction. When constructing, first draw the reference line, unroll and align the coiled material according to the drawn line. First, roll up 2 - 3 meters from one end, heat the base layer and the coiled material with a blowtorch. After the surface turns black and shiny and a molten layer appears, unroll and bond it. A small amount of molten material is extruded at the edge. After positioning, then roll up the other end and bond it in the same way as described above.

[0084] Further, in step S37, the laying of the second layer of waterproofing includes:

[0085] The material used is a 4-mm-thick SBS puncture-resistant modified bituminous waterproof coiled material. The upper and lower layers of coiled materials shall not be vertically pasted. Full pasting is required between the two layers of coiled materials. When constructing by hot melting, air is pressed out. The long-side lap is 100 mm, and the short-side lap is 100 mm. The upper and lower layer laps are staggered by 350 mm from each other.

[0086] Compared with the prior art, the construction method of a building waterproof coiled material described in the present invention has the following advantages:

[0087] For the construction method of a building waterproof coiled material described in the present invention, the construction method of the building waterproof coiled material of the present invention can carry out coiled material waterproof construction on the base layer, the side wall and the roof of the basement. Moreover, the construction process is reasonable and can handle the lap joints of the waterproof coiled material, which can not only achieve a good waterproof effect, but also avoid waste of the waterproof coiled material. In addition, this construction method strictly complies with the construction specification requirements, which can not only construct quickly, improve the construction efficiency, but also protect the safety of construction workers, and has strong practicability. Description of the Drawings

[0088] The accompanying drawings that form a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0089] Figure 1 It is a schematic flow chart of the construction method described in the embodiment of the present invention;

[0090] Figure 2 It is a schematic diagram of the long-side bonding and lapping structure form described in the embodiment of the present invention;

[0091] Figure 3 It is a schematic diagram of the short-side butt-joint bonding structure form described in the embodiment of the present invention;

[0092] Figure 4 It is a schematic diagram of the T-shaped lapping structure form described in the embodiment of the present invention;

[0093] Figure 5 It is a schematic diagram of the joint of the floor waterproof coiled material described in the embodiment of the present invention;

[0094] Figure 6 It is a schematic diagram of the node of the floor waterproof coiled material's lapped joint described in the embodiment of the present invention;

[0095] Figure 7 It is a schematic diagram of the process of coiled material lapping and end sealing described in the embodiment of the present invention;

[0096] Figure 8 It is a schematic diagram of the underground wall and floor described in the embodiment of the present invention;

[0097] Figure 9 It is a schematic diagram of the waterproofing of the coiled material's end at the underground wall described in the embodiment of the present invention;

[0098] Figure 10 It is a schematic diagram of the process of laying the coiled material after adding an additional layer at the casing described in the embodiment of the present invention;

[0099] Figure 11 It is a schematic diagram of the coiled material's cut fitting at the external corner described in the embodiment of the present invention;

[0100] Figure 12 It is a schematic diagram of the coiled material's cut fitting at the internal corner described in the embodiment of the present invention;

[0101] Figure 13 It is a schematic diagram of the SBS coiled material lapping described in the embodiment of the present invention;

[0102] Figure 14 It is a schematic diagram of the base layer pre-laying waterproof construction described in the embodiment of the present invention;

[0103] Figure 15 It is a schematic diagram of the waterproof construction of the basement side wall described in the embodiment of the present invention;

[0104] Figure 16 This is a schematic diagram of the waterproof construction of the basement roof described in the embodiments of the present invention. Detailed implementation manners

[0105] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0107] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0108] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0109] As Figures 1 to 16 shown, a construction method of building waterproof coiled material includes the following steps:

[0110] S1. Carry out pre-laying waterproof construction on the base layer;

[0111] S2. Carry out waterproof construction on the side wall of the basement;

[0112] S3. Carry out waterproof construction on the basement roof.

[0113] The construction method of the building waterproofing coil of the present invention can perform coil waterproof construction on the base layer, the side wall and the top plate of the basement, and the construction process is reasonable to treat the lap joint of the waterproof coil, which can not only achieve a good waterproof effect, but also avoid waste of the waterproof coil. In addition, this construction method strictly complies with the construction specification requirements, can not only construct quickly, improve construction efficiency, but also protect the safety of construction personnel, and has strong practicability.

[0114] In a preferred embodiment of the present invention, in step S1, the pre-laying waterproof construction process for the base layer includes:

[0115] (1) Construction process flow

[0116] Base layer cleaning → Laying the large-area TPR rubber self-adhesive film pre-laying waterproof coil (sand surface facing up) → Treatment of the lap joint of the TPR waterproof coil → Inspection and acceptance.

[0117] (2) Operation key points and technical requirements

[0118] 1) Base layer treatment

[0119] The base layer should be firm, flat, free of obvious water and oil stains. There should be no obvious water on the base layer during construction; if there is obvious water on the construction surface, leakage plugging or drainage treatment should be carried out in advance. The internal and external corners can be made into 90° right angles, and it is required to be straight. The base layer has completed the acceptance and work surface handover procedures.

[0120] 2) Laying the large-area TPR rubber self-adhesive film pre-laying waterproof coil

[0121] First, the paving position of the coil should be determined. On the surface of the treated base layer, according to the width of the selected coil, leave the lap joint size and carry out the coil paving construction. After paving, the coil should be flat, straight, with the correct lap size and should not be distorted; the lap of the second coil in the long side direction with the first coil is carried out according to the lap guiding line.

[0122] When laying the waterproof coil, it should be noted that it should not be pulled too tightly or have large bulges. The laid waterproof coil should conform to the unevenness of the base surface and keep natural, flat and adherent.

[0123] 3) Treatment of the lap joint of the TPR rubber self-adhesive film pre-laying waterproof coil

[0124] After the large-area paving is completed, the lap edges of the coil need to be treated:

[0125] 1. Long-side bonding lap: Reserve an 80-mm-wide range on the long side of the coil, only coat the self-adhesive film layer, and cover it with an isolation film as the self-adhesive lap edge. After aligning the long side of the material, the isolation film can be torn off for bonding lap. The specific structural form is shown in Figure 2 .

[0126] When lapping, lift the release film at the lapping joint of the coil, ensure that the lapping joint is clean, dry and free of dust, compact the lapping edge of the coil with a pressing roller, squeeze out the air bubbles at the lapping edge, and compact and bond firmly.

[0127] 2. Short-side butt joint bonding: Adopt a butt joint bonding tape to bond the short sides of two adjacent materials together head-to-head to form a complete continuous waterproof layer. The width of the tape is 160 mm. For the specific structural form, see Figure 3 .

[0128] 3. T-shaped lap joint: Cross lap joints are not allowed in the lap joints of waterproof coils. The short-side lap joints should preferably be staggered by 1 / 3 to 1 / 2 of the width of the coil. When multiple coils are laid with their short sides flush, the long sides of the coils are allowed to be transversely lapped with them to form a T-shaped joint. At the T-shaped joint, a single-sided self-adhesive tape (sand-faced cover strip) is used to cut a circle with a diameter of about 80 mm for strengthening and sealing treatment. For the specific structural form, see Figure 4 .

[0129] 4. Coil repair: As Figures 5 to 6 shown, for the already constructed coil waterproof layer, if any damage is detected on the waterproof layer during the subsequent processes, it must be immediately marked clearly with a black marker for subsequent repair. Any penetrating damage point on the TPR waterproof coil must be properly repaired before formwork erection and concrete pouring. Use a single-sided self-adhesive tape (sand-faced cover strip) to paste at the damaged area. After the repair is completed, the repair quality should be carefully inspected to ensure the repair quality of the coil.

[0130] Note: Construction waste, ash slag and other items should not be dumped into the groove to ensure that the temporary protective masonry can be demolished smoothly.

[0131] 4) Inspection and acceptance

[0132] The lap joints between the coils should be compacted, bonded firmly and sealed tightly, without defects such as wrinkles, holes and curled edges.

[0133] Self-inspection is carried out for each process. When inspecting, use a special hook needle or screwdriver for weld inspection to check the interface. If any un-solid welding is found, it should be repaired in time without leaving any hidden dangers. The on-site construction workers and quality inspectors must follow the class to check. After inspection and passing the acceptance, the next process can be carried out. After passing the self-inspection, report to the general contractor, supervisor and construction party for acceptance in accordance with the national standard "Code for Acceptance of Quality of Underground Waterproofing Works" (GB50208-2011). After passing the acceptance, the next process can be carried out in time.

[0134] In a preferred embodiment of the present invention, in step S2, for the waterproofing of the basement side wall, it includes:

[0135] (1) Construction process flow

[0136] Base treatment → Painting base treatment agent → Detail node treatment (paving additional layer) → Positioning and snapping lines → Paving the coil in large area → Coil lapping and joint sealing → Quality inspection and acceptance → Construction of protective layer.

[0137] (2) Base treatment

[0138] 1) The construction base should meet the requirements of national standards. The base surface should be flat, solid, without sanding and dusting, and the surface moisture content ≤ 9%.

[0139] 2) Clean the dust, sundries, oil stains, etc. on the base. Particular attention should be paid to cleaning at the corners, pipe roots, etc. If there are different oil stains and rust, etc., use sandpaper, wire brush, solvent, etc. to clean them up.

[0140] 3) For the steel bars, pipe fittings, bolts, etc. protruding from the base surface, they should be chiseled into the base 10 - 20 mm from the root and then cut off, and the cut-off part should be covered with 1:2.5 cement mortar. The coverage area should meet the flatness requirements of the base. The sharp hard objects and mortar bumps protruding from the base surface should be removed. If they cannot be removed, they should be covered with cement mortar plastering. The radius of the plastering arc should be greater than 300 mm.

[0141] 4) The components passing through the base must be installed before the waterproof construction can be carried out;

[0142] 5) The corners should be plastered into a circular arc or 45° chamfer. The minimum radius of the internal corner is 50 mm, and the minimum radius of the external corner is 20 mm.

[0143] (3) Painting base treatment agent

[0144] Before using the base treatment agent (cold primer), it should be stirred evenly first; the painting should be uniform, without showing the base, and the coil can be paved only after it is completely dry.

[0145] (4) Snapping lines and positioning

[0146] Before the large-area coil construction, the paving reference lines should be snapped on the base surface according to the size and paving direction of the coil, so that the coil is neat, beautiful and has no large deviation during paving.

[0147] (5) Paving the coil in large area

[0148] The paving direction of the coil should be from top to bottom and perpendicular to the wall. After aligning the position, tear off the self-adhesive film from top to bottom to make it hang naturally, and then use a brush to expel the air between the coil and the wall to ensure firm adhesion.

[0149] 1) First, release the stress of the unrolled coil. After it is fully unfolded, pave it flat and keep it for 5 - 10 minutes.

[0150] Pave according to the pre-fixed position. Align the adhesive surface of the coil material and lay it flat on the base surface. Lift the release film from the back at one end, tear off the release film evenly while pressing firmly to exhaust air during paving at a constant speed. When laying and pulling the coil material, always pay attention to aligning with the reference line and the speed should not be too fast to avoid deviation that is difficult to correct. When pasting the coil material, tear off the release film evenly and immediately roll (extrude) it forward and outward forcefully with a rubber roller (or scraper) to exhaust air and make it firmly adhere to the base layer.

[0151] 2) When lapping and paving the next coil material, lift the release film at the lapping part of the lower layer coil material, lay the upper layer coil material flat and firmly on the lower layer coil material, and roll it with a pressure roller to exhaust air and compact it.

[0152] (6) Coil material lapping and end sealing

[0153] 1) The long side lapping width of the coil material > 80mm. The upper release film serves as the self-adhesive lapping edge. After aligning the long sides of the material, the release film can be torn off for adhesive lapping. When lapping, lift the release film at the lapping part of the coil material to ensure that the lapping part is clean, dry, and free of dust. Compact the lapping edge of the coil material with a pressure roller or a long roller brush to squeeze out the air bubbles at the lapping edge and firmly compact and adhere it. When lapping the short side, the self-adhesive layer of the coil material and the outer PET film can be self-adhered, and heating can be supplemented if necessary. The short side lapping width of 150mm is sufficient, and roll it with a pressure roller to exhaust air and compact it, as Figure 7 shown.

[0154] 2) The short side joints of adjacent two coils in the same layer should be staggered by at least 500mm; the long side joints of the upper and lower layers of coil materials should be staggered by 1 / 3 - 1 / 2 of the width, and the short side should be staggered by at least 500mm.

[0155] 3) The relatively weak parts (i.e., the end parts of the coil material, the special-shaped parts with more cutting of the coil material, etc.) should be sealed with a special sealant.

[0156] (7) Detail node treatment (laying additional coil material)

[0157] 1) Treatment of special-shaped parts: Make additional layers for special-shaped parts according to the specification requirements. The material is the same as the main material, and the width of the additional layer is 500mm and the material should meet the design requirements.

[0158] 2) The additional layer is constructed by full adhesion using the self-adhesive method.

[0159] 3) The waterproof coil materials of the exterior wall and the floor slab do not directly contact and are adhered through butyl tape.

[0160] 4) The end part of the underground wall should be 500mm higher than the designed outdoor ground level. When encountering door and window openings before reaching the height of 500mm, the waterproofing turns into the opening, and the end part is sealed with a sealant and fixed with a special closing strip and screws, as Figures 8 to 10 shown.

[0161] (8) Quality inspection and acceptance

[0162] After the waterproof layer construction is completed, quality inspection and acceptance should be carried out immediately. For the floor slab and side walls, visual inspection is used for acceptance. For the garage roof and the roof, visual inspection is carried out first, and then a water storage test is carried out.

[0163] In a preferred embodiment of the present invention, in step S3, the waterproofing of the basement roof includes:

[0164] (1) Process flow:

[0165] Defect repair of the basement roof - Substrate treatment - Painting cold primer - Construction of additional layer - Laying the first layer of waterproofing membrane - Laying the second layer of waterproofing membrane - Acceptance - Water storage test - Acceptance - Waterproof protective layer.

[0166] (2) Construction procedures

[0167] 1) Defect repair of the basement roof

[0168] After the basement roof is cleaned, use a high-pressure air gun to remove the surface dust and rinse it clean. Evenly apply the waterproof coating twice on the position of the concrete surface cracks. A water repellency test should be carried out for 24 hours at the first-piece sample position to monitor the waterproof effect.

[0169] 2) Substrate treatment:

[0170] 1. Level the concave defects of the substrate with 1:2.5 cement mortar to achieve a smooth surface.

[0171] 2. Use 1:2.5 cement mortar to plaster the arc corners at the pipe roots and the corners between the wall and the roof protruding from the roof. Pay attention to the continuous and concentrated pipe positions, and the pipe roots between the pipes should also be properly treated to prevent omission.

[0172] 3. Before laying the waterproofing membrane, remove the protrusions, mortar, bumps and other sundries on the substrate surface and clean the dust. The substrate is dry, and the moisture content is not more than 9%. Detection method: Lay a 1m*1m square of the same quality waterproofing membrane on the waterproof substrate. After 3 hours of direct sunlight at noon, lift it up. If there is no water mark on the covered part of the substrate and the waterproofing membrane, the waterproof layer construction can be carried out.

[0173] 3) Coating of the substrate treatment agent:

[0174] Use a special substrate treatment agent, dilute it and evenly apply it once on the substrate surface. When applying the substrate treatment agent, apply it in one direction, with uniform thickness, without leaking at the bottom or piling up. After the substrate treatment agent is dry (dry for 4 hours, not sticky to the touch), the construction of the additional layer at the corners and the waterproofing membrane on the wall can be carried out.

[0175] 4) Construction of the additional layer:

[0176] Lay an additional layer of homogeneous coiled material at the post-cast strip, internal and external corners and other parts. Cut the coiled material into corresponding shapes and spot bond it, with a width of 500m (exceeding the turning point or post-cast strip by 250mm). The construction of the additional layer must be firmly pasted. The width of the additional layer shall not be less than 500m, and both sides shall be evenly overlapped by 250m, and full bonding is required; the additional layer must be inspected and qualified by the project quality inspector before proceeding to the next process, as Figures 11 to 12 shown.

[0177] 5) Lay the waterproof coiled material:

[0178] The bonding between coiled materials shall adopt the full bonding method and there shall be no hollowing. Lap width: for flat laying, the long-side lap shall not be less than 100mm, and the short-side lap shall not be less than 100m. For vertical wall laying, the long-side lap shall not be less than 100m, and the short-side lap shall not be less than 150mm. The lap joints of adjacent waterproof coiled materials shall be staggered from each other by 1 / 3L (L is the width of the waterproof coiled material). For the height of the upward return on the wall, see Figure 13 and fix it with steel nails of aluminum alloy closing strip and seal it with asphalt.

[0179] 6) Lay the first layer of waterproofing:

[0180] Use 2m thick self-adhesive polymer modified asphalt waterproof coiled material for laying. Along the north-south direction, the full bonding method shall be used for the construction of the garage planting roof slab and there shall be no hollowing. When constructing, first draw the reference line, unroll and align the coiled material according to the drawn line. First roll 2 - 3 meters from one end, heat the base layer and the coiled material with a blowtorch. When the surface turns black and shiny and a molten layer appears, quickly roll it back and bond it. Squeeze out a small amount of molten material at the edge. After positioning, then roll up the other end and bond it as described above.

[0181] The paving sequence shall be from the plane to the vertical surface first, with cross-lapping at the plane-vertical surface junction, and the joint shall be left on the bottom plane not less than 600mm away from the vertical surface. Cut the waterproof coiled material according to the paving length and roll it up for standby. During operation, align the end of the coiled material that has been rolled up with the starting point, light the gasoline blowtorch or special flame spray gun, heat the junction of the base layer and the coiled material, and keep the spray gun about 300 - 500m away from the heating surface. Spray back and forth and observe. When the asphalt of the coiled material just melts, hold both ends of the pipe core and slowly roll it forward for paving, requiring uniform force, and the paving edge width should be well controlled. Heat the coiled material joint with a spray gun and press it together until the asphalt is extruded and bonded firmly at the edge.

[0182] 7) Lay the second layer of waterproofing:

[0183] Use 4mm SBS puncture-resistant modified asphalt waterproof coiled material. The upper and lower layers of coiled materials shall not be vertically pasted, and full pasting must be carried out between the two layers of coiled materials. During hot melt construction, air shall be pressed out to prevent hollowing, and the edge sealing shall be dense. The long-side lap is 100m, and the short-side lap is 100mm. The upper and lower layer laps shall be staggered from each other by 350mm.

[0184] 8) Acceptance:

[0185] After the self-inspection by the construction team is qualified, it shall be reported to the project quality inspector for acceptance. After passing the acceptance, it shall be reported to the supervisor for acceptance, and the "Hidden Project Acceptance Record" shall be filled in and signed.

[0186] 9) Water storage test:

[0187] The next process can be constructed only when there is no leakage after 24 hours of water storage.

[0188] 10) Waterproof protective layer:

[0189] 1. Lay a 0.4-mm-thick polyvinyl chloride plastic film isolation layer.

[0190] 2. Pour 70-mm-thick C20 fine aggregate concrete in-situ (the center distance of the double-way dividing joints is 3000 mm, the joint width is 15 mm, and the joints are filled with coarse sand mixed with asphalt oil).

[0191] In a preferred embodiment of the present invention, the safety assurance system and measures include:

[0192] Special safety production objectives for waterproofing

[0193] (1) Prevent serious injuries and deaths of employees at work; (2) Prevent major and extremely serious liability accidents; (3) Prevent liability fire and explosion accidents; (4) The minor injury rate is 0.

[0194] Construction safety assurance measures

[0195] (1) Main safety assurance measures

[0196] Adhere to the safety production education system, focusing on pre-job education, daily education, and typical education. Firmly establish the idea of "safety first, prevention first", and enhance safety awareness and self-protection ability.

[0197] (2) New workers shall first receive safety education and safety knowledge assessment upon entering the site, and can only start work after passing the assessment, and sign a safety contract with the employees.

[0198] (3) All personnel entering the site must wear safety helmets and fasten seat belts; it is not allowed to wear the helmet after work and leave it beside.

[0199] (4) Construction site access card system: All construction personnel on site need to wear ID cards, and those without access cards are not allowed to enter the site.

[0200] (5) When the depth of the basic operation is 3 m, people must use the pedestrian passage to go up and down.

[0201] (6) Before welding, a welding application must be filled in and approved.

[0202] (7) One set (not less than four) of foam and dry powder fire extinguishers (for extinguishing electrical fires) should be configured for every 25 m² at the construction site, and the distance between each set of fire extinguishers should not be greater than 30 m.

[0203] (8) Acetylene cylinders shall not be inverted or laid horizontally. The working distance between oxygen and acetylene cylinders shall not be less than 5 m, and the distance between the two cylinders and an open fire shall not be less than 10 m. Oxygen and acetylene cylinders shall not be stored inside buildings; oxygen and acetylene cylinders shall not be exposed to the sun, and an acetylene cylinder must be equipped with a backfire preventer.

[0204] (9) When the waterproof height of the exterior wall exceeds 2 m, safety belts must be fastened. Cross-operation is not allowed below the vertical opening, and the operation scaffold must be fully covered with scaffold boards.

[0205] (10) All vertical transportation must adopt a bundling method suitable for the construction machinery to prevent objects from falling and injuring people in the form of scattered falling during operation.

[0206] (11) When operating with oxygen, acetylene, blowtorches, fuel, and storing gas cylinders, and during high-altitude operations, a written safety technical disclosure must be carried out, and all personnel must sign the formality.

[0207] In a preferred embodiment of the present invention, the measures for ensuring civilized construction and environmental protection include:

[0208] (1) The height of the construction operation area and the material stacking area shall not be higher than 1.8 m. Each area shall have obvious signs, and safety warning signs shall be hung at the entrances and exits to the construction operation area.

[0209] (2) The main entrance must be hardened. A vehicle washing device and a drainage ditch shall be set at the vehicle entrance and exit position to ensure that vehicles with mud can only drive into the urban streets after being washed.

[0210] (3) The construction site management personnel and operators shall wear the unified standard work clothes of the enterprise, and there shall be a color difference between the clothes of the management personnel and the operators.

[0211] (4) The site and roads at the construction site shall be flat and unobstructed. The passages for entering and leaving the site and the buildings shall be hardened roads, free of mud and water accumulation, and corresponding safety protection facilities and safety signs shall be set. Construction materials or other sundries shall not be stacked on the roads.

[0212] (5) The flammable and explosive items at the construction site shall be stored in a special warehouse and managed by a dedicated person. The location of the warehouse shall be far from the fire source and shall not be placed under high-voltage lines. The lighting in the warehouse shall use explosion-proof lamps. Fire extinguishers shall be placed outside the warehouse, and the dangerous goods use permit and the responsible person sign shall be posted.

[0213] (6) The garbage at the construction site shall be promptly centralized, classified, recycled, utilized, and transported out of the site. It must be transported to the approved garbage station for dumping and shall not be dumped randomly.

[0214] (7) No defecation or urination is allowed randomly at the construction site and inside and outside the construction buildings. The toilets on the site shall be kept clean.

[0215] (8) Smoking is not allowed at the construction site or in other places with no-smoking signs.

[0216] (9) The construction operation surface must be cleared of materials after completion of work. The floor ash, brick dregs, and packages on the operation surface and floors must be cleared up immediately during the operation, cleared as it is done, and cleared by the person who does the work, and then collected in bags.

[0217] (10) Do a good job in labor protection, reasonably arrange work and rest time, allocate construction reserve strength, control on-site noise and dust, and reduce the impact on the surrounding environment. Special persons shall be designated to sprinkle water and clean the construction site roads regularly to form a system to prevent road dust.

[0218] (11) The construction site implements the responsibility system of zoned contract. Divide the areas, sign the on-site civilized construction responsibility letter, conduct regular inspections, and link the inspection results with economic benefits to improve the awareness of workers on on-site civilized construction.

[0219] (12) Hoisting shall be strictly carried out in accordance with the hoisting operation system, and illegal hoisting is prohibited.

[0220] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A construction method for building waterproof coiled materials, characterized in that: The following steps are involved: S1. Pre-waterproofing of the base layer; S2. Waterproofing of basement side walls; S3. Waterproof construction of basement roof; In step S1, the waterproofing construction process for the base layer includes: S11, grass-roots processing; S12, lay large surface TPR rubber self-adhesive membrane and pre-lay waterproof membrane; S13. Treatment of lap joints of pre-laid waterproof membrane with TPR rubber self-adhesive membrane; S14. Inspection and acceptance; In step S2, the waterproofing construction process for the basement top slab includes: S21, basement side wall base treatment; S22, apply base treatment agent; S23, elastic line, positioning; S24, large area paving roll material; S25, overlap and seal the coiled materials; S26, detail node processing; S27, quality inspection and acceptance; In step S3, the waterproofing construction process for the basement top slab includes: S31, basement roof defect repair; S32, basement roof base treatment; S33, apply base treatment agent; S34, additional layer construction; S35, laying waterproof membrane; S36, laying the first layer of waterproofing; S37, laying the second waterproofing layer; S38, acceptance; S39, water storage experiment; S310, waterproof protective layer.

2. The construction method of a building waterproofing membrane according to claim 1, characterized in that: In step S12, laying a large surface of TPR rubber self-adhesive film pre-laid waterproofing membrane includes: First, the position for laying the roll material should be determined. On the treated base surface, leave the overlap size according to the width of the selected roll material and proceed with the laying of the roll material. After laying, the roll material should be flat and straight, with the correct overlap size and no distortion. The overlap of the second roll material with the first roll material in the long side direction should be carried out according to the overlap guide line.

3. A construction method of building waterproof coiled material according to claim 2, characterized in that: In step S13, the overlap seams of the pre-laid waterproofing membrane of the TPR rubber self-adhesive film are processed. After the large surface is laid, the overlap edges of the membrane need to be processed, including: S131, long side bonding overlap: A 80mm wide area is reserved on the long side of the coil, and only the self-adhesive film layer is coated, and the isolation film is covered as the self-adhesive overlap edge. After aligning the long sides of the material, the isolation film can be torn off for bonding and overlap; S132, short side bonding: Use splicing adhesive tape to bond the short sides of two adjacent materials together to form a continuous waterproof layer. The width of the tape is 160mm. S133, T-joint: Cross overlaps are not allowed when overlapping waterproofing membranes. The short side overlaps should be staggered by 1 / 3 to 1 / 2 of the width. When the short sides of multiple membranes are laid evenly, the long sides of the membranes are allowed to overlap horizontally to form a T-shaped seam. At the T-shaped seam, a single-sided self-adhesive tape is cut into a circle with a diameter of about 80mm for enhanced sealing. S134, coil repair: If the waterproofing layer of the completed membrane is found to have damage in the subsequent process, it needs to be marked with a black marker. The penetrating damage points on the TPR waterproofing membrane need to be properly repaired before supporting the formwork and pouring concrete, and single-sided self-adhesive tape should be used to stick to the damaged areas.

4. A construction waterproofing membrane construction method according to claim 1, characterized in that: In step S21, the basement side wall base is processed, including: S211. The surface of the base layer should be flat, solid, free of sand and dust, and the surface moisture content should be ≤9%; S212. Clean the dust, debris and oil stains on the base layer, and carefully clean the corners and pipe roots. If there is any oil stain or rust, it should be cleaned up; S213. For the steel bars, pipe fittings, and bolts protruding from the surface of the base course, they shall be chiseled 10 - 20 mm into the base course from the root and then cut off, and the cut-off part shall be covered with 1:2.5 cement mortar. The coverage area shall meet the flatness requirements of the base course. The sharp hard objects and mortar lumps protruding from the surface of the base course shall be removed. When they cannot be removed, they shall be covered with cement mortar plastering. The radius of the plastering arc shall be greater than 300 mm; S214. Waterproof construction can only be carried out after the components passing through the base course are installed; S215. The internal and external corners shall be plastered into an arc or a 45° chamfer. The minimum radius of the internal corner is 50 mm, and the minimum radius of the external corner is 20 mm.

5. A construction method of a building waterproofing membrane, characterized in that: In step S24, laying the coiled material in a large area, including: The direction of laying the coiled material shall be from top to bottom and perpendicular to the wall. After aligning the position, tear off the self-adhesive film from top to bottom to make it hang naturally, and then use a brush to expel the air between the coiled material and the wall and bond it firmly; First, unwind the coiled material to release the stress. After it is fully unfolded, lay it flat and keep it for 5 - 10 minutes; Lay it according to the pre-fixed position. Align the adhesive surface of the coiled material with the reference line and lay it flat on the base surface. Lift the release film from the back at one end, and while tearing off the release film evenly at a constant speed, press it firmly and exhaust air for paving; when pasting the coiled material, the release film shall be torn off evenly, and use a rubber roller to roll forward and outward forcefully to expel the air and make it firmly adhere to the base course; When lapping and laying the next coiled material, lift the release film at the lapping part of the lower coiled material, lay the upper coiled material flat on the lower coiled material, and use a pressing roller to roll and exhaust air and press it firmly.

6. The construction method of a building waterproofing membrane according to claim 5, characterized in that: In step S25, coiled material lapping and joint sealing, including: S251. The long-side lapping width of the coiled material > 80 mm. The upper release film is used as the self-adhesive lapping edge. After aligning the long sides of the materials, tear off the release film for bonding and lapping. When lapping, lift the release film at the lapping part of the coiled material and use a pressing roller or a long brush to press the lapping edge of the coiled material firmly; when lapping the short sides, the self-adhesive layer of the coiled material is bonded to the outer PET film. The short-side lapping width is 150 mm, and use a pressing roller to roll and exhaust air and press it firmly; S252. The short-side joints of two adjacent coiled materials in the same layer shall be staggered by at least 500 mm; the long-side joints of the upper and lower layers of coiled materials shall be staggered by 1 / 3 - 1 / 2 of the width, and the short sides shall be staggered by at least 500 mm; S253. The relatively weak parts shall be sealed with sealant.

7. A construction method of building waterproof coiled material according to claim 6, characterized in that: In step S26, detailed node treatment, including: S261. Treatment of special-shaped parts: Make additional layers for special-shaped parts; S262. The additional layers shall be constructed by full adhesion using the self-adhesive method; S263. The waterproof coiled materials of the exterior wall and the floor slab are bonded through butyl tapes; S264. The receiving head part of the underground wall is 500 mm higher than the designed outdoor ground level. When encountering door and window openings before reaching the 500 height, the waterproofing shall turn into the opening. The receiving head part shall be sealed with sealant and fixed with a closing strip and screws.

8. A construction method of building waterproof coiled material according to claim 1, characterized in that: In step S32, treatment of the basement roof base course, including: S321. The groove defects of the base course shall be leveled with 1:2.5 cement mortar; S322. The pipe roots and the internal and external corners emerging from the roof slab shall be plastered into arc corners with 1:2.5 cement mortar; Before laying the coil material, remove the sundries on the surface of the base layer. The base layer should be dry with a moisture content not exceeding 9%. Detection method: Lay a 1m×1m square of the same quality coil material flat on the waterproof base layer. After 3 hours of direct sunlight at noon, lift it up. If there is no water mark on the covered part of the base layer and the coil material, the waterproof layer can be constructed.

9. A construction method of building waterproof coiled material according to claim 1, characterized in that: In step S35, laying the waterproof coil material includes: The full adhesion method is used for pasting between the coil materials. The lap width: for flat laying, the long side lap is not less than 100mm, the short side lap is not less than 100mm; for vertical wall laying, the long side lap is not less than 100mm, the short side lap is not less than 150mm. The lap joints of adjacent waterproof coil materials are staggered by 1 / 3L from each other, and are fixed with steel nails of aluminum alloy closing strips and sealed with bitumen oil.

10. A construction waterproofing membrane construction method according to claim 9, characterized in that: In step S36, laying the first layer of waterproof layer includes: The material is laid with a 2m thick self-adhesive polymer modified bitumen waterproof coil material. Along the north-south direction, the full adhesion method is used for construction on the garage planting roof slab. During construction, first draw a reference line, unfold and align the coil material according to the line. First, roll up 2-3 meters from one end, heat the base layer and the coil material with a blowtorch. After the surface turns black and shiny and a molten layer appears, unroll and bond it. A small amount of molten material is extruded at the edge. After positioning, then roll up the other end and bond it in the same way as described above; In step S37, laying the second layer of waterproof layer includes: The material is a 4mm SBS puncture-resistant modified bitumen waterproof coil material. The upper and lower layers of coil materials shall not be vertically pasted, and full pasting is required between the two layers. During hot melt construction, air is pressed out. The long side lap is 100mm, the short side lap is 100mm, and the upper and lower layer laps are staggered by 350mm.

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