CN113931389A - Construction method of large-area exposed TPO waterproof coiled material - Google Patents
Construction method of large-area exposed TPO waterproof coiled material Download PDFInfo
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- CN113931389A CN113931389A CN202111395819.9A CN202111395819A CN113931389A CN 113931389 A CN113931389 A CN 113931389A CN 202111395819 A CN202111395819 A CN 202111395819A CN 113931389 A CN113931389 A CN 113931389A
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- 239000000463 material Substances 0.000 title claims abstract description 150
- 238000010276 construction Methods 0.000 title claims abstract description 86
- 238000003466 welding Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000002344 surface layer Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 19
- 238000009966 trimming Methods 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- 238000010586 diagram Methods 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 235000011837 pasties Nutrition 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 41
- 238000001514 detection method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002998 adhesive polymer Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/06—Apparatus or tools for roof working for handling roofing or sealing material in roll form
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method of a large-area exposed TPO waterproof coiled material, which comprises the steps of preparing admixtures with different proportions and carrying out a bonding force drawing test on the TPO waterproof coiled material; determining the construction mixing proportion control range of the admixture; checking and accepting the concrete surface layer, and carrying out integral arrangement and on-site construction line snapping and division on the TPO waterproof coiled material; performing collision analysis to adjust local construction; manufacturing an admixture and carrying out wet paving construction on the TPO waterproof coiled material; inspecting the bonding strength of the admixture and the TPO waterproof coiled material, and performing welding construction on the TPO waterproof coiled material; carrying out local node treatment on the constructed TPO waterproof coiled material, and checking and accepting a construction site; by using the construction method, the problems that the bonding strength of the admixture is low, the flatness of the concrete base surface is required, the water content is high and the coiled material is easy to hollow when being laid in the traditional construction are solved, meanwhile, the arrangement and collision analysis are carried out on the construction site in advance, and the attractiveness after construction is improved while the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of roof waterproof construction, in particular to a construction method of a large-area exposed TPO waterproof coiled material.
Background
The thermoplastic polyolefin waterproof coiled material is a waterproof product with the characteristics of rubber and thermoplastic plastic, shows high elasticity of rubber at normal temperature, and can be plasticized at high temperature to form a high polymer material; the waterproof layer has the comprehensive characteristics of ageing resistance, high tensile strength, high elongation, construction of wet roofs, no need of a protective layer for exposure, convenient construction, no pollution and the like, and is a common waterproof layer for light energy-saving roofs, large-scale factory buildings and environment-friendly buildings in the domestic waterproof industry in recent years.
The method for directly fixing the Thermoplastic Polyolefin (TPO) waterproof coiled material on the concrete surface layer at present is a construction method for completely bonding the waterproof coiled material on the roof surface layer by adopting an adhesive. However, the construction method has higher requirements on the bonding strength of the adhesive and the flatness of the concrete surface, hollowing is easy to occur, and the construction quality and the overall effect of the TPO waterproof coiled material are difficult to ensure in the construction of the large area; and TPO is for exposing waterproof, and roofing protrusion, corner, negative and positive angle are more, and TPO arranges and spreads the order wholly not only to be concerned with whole roofing TPO waterproof aesthetic measure still to a certain extent and determines the water-proof effects good or not.
Disclosure of Invention
In order to solve the technical problems that the requirement on the bonding strength between a concrete surface layer and a waterproof coiled material and the flatness of the concrete surface layer is high, the construction quality and the attractiveness are difficult to ensure, and the construction efficiency is low in the construction process of the TPO waterproof coiled material for the roof, the invention provides a construction method of a large-area exposed TPO waterproof coiled material.
The technical problem of the invention is realized by the following technical scheme: a construction method of large-area exposed TPO waterproof coiled material comprises the following steps,
step one, preparing admixtures with different proportions;
secondly, carrying out a bonding force drawing test of the TPO waterproof coiled material on the admixtures in each proportion;
step three, the construction mixing proportion control range of the admixture is determined by integrating the drawing test and the material economy;
step four, the concrete surface layer is inspected to be qualified;
step five, integrally arranging the paving sequence and the lap joint position of the TPO waterproof coiled material through a two-dimensional model diagram, and dividing the field construction elastic lines based on the integral layout diagram;
step six, based on a reference line arranged on site, paving TPO waterproof coiled materials in advance, performing collision analysis on the TPO waterproof coiled materials and a building main body according to a three-dimensional model diagram, and adjusting construction local parts;
step seven, manufacturing an admixture according to the determined proportioning range of the admixture;
step eight, paving the admixture on a concrete base surface at the pre-bonding position, and carrying out wet paving construction on the TPO waterproof coiled material;
step nine, checking the bonding strength of the admixture and the TPO waterproof coiled material, and performing welding construction on the TPO waterproof coiled material;
and step ten, carrying out local node treatment on the constructed TPO waterproof coiled material, and checking and accepting the construction site.
Preferably, the admixture in the first step comprises the components of a cementing compound, cement and water; the blending ratio range of the admixture is as follows according to the weight ratio:
1 part of adhesive;
water: 50 parts of a mixture;
cement: 90 to 110 portions.
Preferably, the construction mixing proportion control range of the admixture in the third step is as follows according to the weight ratio:
adhesive: 1 part;
water: 50 parts of a mixture;
cement: 95 to 102 portions.
Preferably, in the fifth step, the lapping size of the lapping long edge of the same layer of the TPO waterproof coiled material is not less than 80 mm; the position of the lap seam between the upper and lower layers is not less than 1/3 of the width of the web.
Preferably, in the seventh step, according to the determined proportioning range of the admixture, the concrete operation steps for manufacturing the admixture are that according to the determined proportioning range of the admixture, the adhesive is firstly put into a container, then the cement is added, the mixture is stirred, and after the mixture is uniformly stirred, the water is added, and the mixture is stirred into pasty fluid.
Preferably, step eight, the concrete operation steps of laying the admixture on the concrete base surface of the pre-bonding position and carrying out the wet laying construction of the TPO waterproof coiled material are that,
1) spreading the prepared admixture on a concrete base surface at the pre-bonding position, then spreading and rolling a TPO waterproof roll layer, and discharging the redundant admixture;
2) paving and lapping TPO waterproof coiled materials in the water direction; constructing step by step according to the reference line; the lap seam width of the coiled materials is that the long sides and the short sides are both 100mm, and the short side lap seams of two adjacent coiled materials on the upper layer and the lower layer are staggered 1/3 widths.
3) Firstly, laying a plane coiled material, and then laying a vertical surface coiled material.
Preferably, in the ninth step, the welding construction of the TPO waterproof coiled material adopts an automatic welding machine and a manual welding gun to weld the overlapping edge, the welding environment temperature is above 5 ℃, and the hot air outlet temperature of the welding gun is about 470-570 ℃.
Preferably, the TPO waterproof coiled material after construction in the step ten is subjected to local joint treatment, and the specific operation steps of checking and accepting the construction site comprise,
1) the roof rainwater well, the parapet and the vertical surfaces around the air shaft are all reinforced by polypropylene fabric waterproof coiled materials;
2) reinforcing the polypropylene cloth waterproof coiled material at the roof rainwater well, and then reinforcing the asphalt waterproof coiled material;
3) constructing and processing the corners, the internal corners and the external corners of the upper wall of the roof;
4) and after the construction is finished, each welding line is checked by using a vacuum leak detector, the welding-missing and skip-welding results are confirmed, the welding line is subjected to a water leakage test, and the acceptance is qualified if no leakage exists.
Preferably, the concrete operation steps of the construction treatment of the corners, the internal corners and the external corners of the roof upper wall in the step ten are as follows,
constructing the corners of the upper wall of the roof: fixing the plane waterproof coiled material and the vertical waterproof coiled material at the corner of the upper wall, and smearing sealant at the closing gap of the upper wall; covering with a layer of additional waterproof coiled material, and welding the additional waterproof coiled material, the planar waterproof coiled material and the vertical waterproof coiled material into a whole;
and (3) carrying out external corner flashing construction: installing a fixing piece at a position 150mm away from the external corner of the additional waterproof coiled material to relatively fix the additional waterproof coiled material and the planar waterproof coiled material; trimming the external corner of the additional waterproof coiled material, coating sealing paste, welding the external corner prefabricated coiled material at the trimming position for the first time, and covering and welding the external corner prefabricated coiled material which is used for the first welding and has a larger area at the trimming position for the second time;
and (3) carrying out inside corner flashing construction: installing a fixing piece at a position 150mm away from the internal corner of the additional waterproof coiled material to relatively fix the additional waterproof coiled material and the planar waterproof coiled material; and (3) trimming at the internal corner of the additional waterproof coiled material and coating sealing paste, welding the internal corner prefabricated coiled material at the trimming position for the first time, and covering and welding the internal corner prefabricated coiled material which is used for the first time and has the larger area at the trimming position for the second time.
In conclusion, the invention has the following beneficial effects:
1. according to the invention, through the proportion and test of the admixture, the requirements on the comprehensive cost and the bonding strength are met, the most appropriate construction proportion is selected, the problem of low bonding strength of the admixture is solved, the leveling effect is achieved on the concrete base surface, the flatness of the surface of the concrete surface layer is increased, and meanwhile, the requirements on the flatness and the water content of the concrete surface layer by the wet paving method are not high, so that the construction efficiency is favorably improved.
2. The two-dimensional model graph is designed in advance through two-dimensional model software to arrange the paving and sticking sequence and the lap joint position of the waterproof coiled material, and the elastic lines divide the box before site construction, so that the overall attractiveness of the exposed type broken through lap joint of the waterproof coiled material is guaranteed, meanwhile, the collision analysis is carried out through the three-dimensional model graph and a building main body, the construction problem is simulated and found in advance, local nodes for construction are adjusted in advance and optimized, the construction problem is reduced, and the construction efficiency is improved.
3. According to the invention, local nodes such as internal corners, external corners and upper wall corners are processed and constructed, additional waterproof coiled materials are paved above the waterproof coiled materials on the vertical surface and the planar waterproof coiled materials, the waterproof coiled materials at the internal corners and the external corners are heavily covered, the problem of roof leakage is greatly reduced, and the construction quality of waterproof engineering is strictly ensured.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
A construction method of a large-area exposed TPO waterproof coiled material comprises the following steps:
step one, preparing admixtures with different proportions; the components of the admixture comprise a cementing compound, cement and water; the blending ratio of the admixture is as follows according to the weight ratio: 1 part of adhesive; water: 50 parts of a mixture; cement: 90 to 110 portions, and concretely, the cement is divided into five proportioning doses of 90 portions, 95 portions, 100 portions, 102 portions and 110 portions according to the weight proportion.
Step two, carrying out a wet paving test on the five admixtures with different proportions on a TPO waterproof coiled material, and carrying out a TPO bonding force drawing test; adopting rivet to draw the bonding of appearance detection different ratio tests and drawing intensity, the multiple spot is measured, gets the average to drawing intensity, and the testing result is shown as table 1:
TABLE 1 Admixture test at different ratios
| Adhesives (g) | 1 | 1 | 1 | 1 | 1 |
| Water (g) | 50 | 50 | 50 | 50 | 50 |
| Cement (g) | 90 | 95 | 100 | 102 | 110 |
| Drawing Strength (N/mm) | 5.1 | 4.5 | 4.2 | 4.0 | 3.1 |
Step three, according to the relevant specifications of Thermoplastic Polyolefin (TPO) waterproof coiled materials (GB 27789-2011), the drawing strength is more than or equal to 4N/mm, the drawing strength is qualified, the more cement with the same quality is proportioned, the price is lower, the drawing test and the material economy are comprehensively carried out, and the control range of the construction mixing ratio of the admixture is determined to be adhesive: 1 part; water: 50 parts of a mixture; cement: 95 to 102 portions.
And step four, checking and accepting the concrete surface layer, and determining to be qualified.
Step five, taking a two-dimensional model picture drawn by CAD two-dimensional model software as a basis, integrally arranging the paving sequence and the lap joint position of the TPO waterproof coiled material according to the requirement of the paving direction, the lap joint width of the long side and the short side of the coiled material and the relevant standard requirement, manufacturing an integral arrangement diagram, and popping up a reference line on a construction site based on the integral arrangement diagram; so as carry out TPO waterproofing membrane in proper order along the datum line and spread the construction of pasting, according to the width of selecting TPO waterproofing membrane, the overlap joint size on coiled material long limit is not less than 80mm, generally is 100mm, minor face butt joint overlap joint, and the upper and lower two-layer coiled material overlap joint position of same cross-section is between 1/3 ~ 1/2 simultaneously, and good waterproof sealing effect can be guaranteed to the crisscross setting in position of overlap joint.
Step six, paving TPO waterproof coiled materials in advance based on the reference lines arranged on site in the step five, performing collision analysis on the building main body by using REVIT software based on model making software such as BIM and the like according to a three-dimensional model diagram, and adjusting construction local areas including internal corners, external corners, roof rainwater wells and the like based on collision analysis results;
step seven, manufacturing an admixture according to the determined proportioning range of the admixture; the concrete operation steps for preparing the admixture are that firstly, the adhesive is put into a container according to the determined proportioning range of the admixture, then the cement is added and stirred, and after the mixture is uniformly mixed, the water is added and stirred to form pasty fluid.
Step eight, paving the admixture on a concrete base surface at the pre-bonding position, wherein the paving thickness of the admixture is 1mm to achieve the effects of continuity, proper amount, uniformity and no accumulation, and then carrying out wet paving construction on the TPO waterproof coiled material; the spread and rolled TPO waterproof coiled material is subjected to exhaust compaction through a scraper, redundant admixture is discharged, and meanwhile, the condition of hollowing is avoided; meanwhile, the laying of the waterproof coiled materials follows the principle of laying in the water direction, the laying of the planar coiled materials is firstly carried out, then the laying of the vertical face coiled materials is carried out, the lapping width of the lapping seams of the waterproof coiled materials on the same layer is 100mm for long edges and short edges, and the staggered width of the lapping seams of the short edges of two adjacent coiled materials between the upper layer and the lower layer is 1/3.
Step nine, checking the bonding strength of the admixture and the TPO waterproof coiled material, and after the bonding strength reaches a standard, performing welding construction on a lap joint weld of the TPO waterproof coiled material, wherein welding equipment comprises an automatic spot welding machine and a manual welding gun, the planar waterproof coiled material is welded by the automatic welding machine, a local node is welded by the manual welding gun, the welding environment temperature is above 5 ℃, and the lap joint weld part needs to be dried and cleaned; the welding temperature of the hot air outlet of the manual welding gun is about 470-570 ℃.
Step ten, carrying out local node treatment on the constructed TPO waterproof coiled material, and checking and accepting the construction site, wherein the specific operation steps are as follows:
1) adopting polypropylene cloth waterproof coiled materials to strengthen the roof rainwater well, the parapet and the vertical surfaces around the air shaft; the roof rainwater well is completely wrapped by polypropylene fiber and turned upwards to the extent that the roof board expands by 300mm, the parapet and the vertical surfaces around the air shaft are turned upwards by more than or equal to 300mm, and the horizontal plane roof board is paved by 300mm wide.
2) The roof rainwater well is a rainwater collection point, and the self-adhesive polymer modified asphalt waterproof coiled material with the thickness of 3.0mm is adopted for reinforcement treatment after the polypropylene fabric is used for waterproofing; and turning upwards to the roof board and expanding by 300 mm.
3) The construction treatment of local nodes at the corners of the upper wall, the internal corners and the external corners of the roof is specifically as follows:
constructing the corners of the upper wall of the roof: fixing the plane waterproof coiled material and the vertical waterproof coiled material at the corner of the upper wall, and smearing sealant at the closing gap of the upper wall; covering with a layer of additional waterproof coiled material, and welding and connecting the additional waterproof coiled material, the plane waterproof coiled material and the vertical waterproof coiled material into a whole;
and (3) carrying out external corner flashing construction: installing a fixing piece at a position 150mm away from the external corner of the additional waterproof coiled material to relatively fix the additional waterproof coiled material and the planar waterproof coiled material; trimming the external corner of the additional waterproof coiled material, smearing sealing paste, welding the external corner prefabricated coiled material at the trimming position, and repeatedly covering and welding the external corner prefabricated coiled material with the volume larger than that of the external corner prefabricated coiled material which is welded for the first time; wherein the materials of the additional waterproof coiled material and the external corner prefabricated coiled material are TPO waterproof coiled materials;
and (3) carrying out inside corner flashing construction: installing a fixing piece at a position 150mm away from the internal corner of the additional waterproof coiled material to relatively fix the additional waterproof coiled material and the planar waterproof coiled material; and (3) trimming at the internal corner of the additional waterproof coiled material and coating sealing paste, welding the internal corner prefabricated coiled material at the trimming position, covering and welding the internal corner prefabricated coiled material with the volume larger than that of the internal corner prefabricated coiled material which is welded for the first time at the trimming position, and ensuring that the procedure is consistent with the external corner flashing construction.
4) After the construction is finished, a vacuum leak detector is used for detecting each welding line, the detection method of the welding line can be visual inspection, manual detection or vacuum leak detection cover detection, and during visual inspection, molten slurry is extruded out of the edge of the welding line; the manual detection tool is a special pointing crochet needle which is moved along the welding seam, and the welding seam is qualified without welding missing or welding skip; when the vacuum leak detection cover is used for detection, soapy water is coated on a welding seam, a sealed vacuum cover is covered, vacuum pumping is carried out by using a vacuum pump, and when the air pressure of the vacuum cover reaches 25-35KPa, the welding seam is qualified because no leakage exists; and (5) carrying out a water leakage test on the welding line, carrying out a water spraying test for two hours, and if no leakage condition exists, checking and accepting to be qualified.
Claims (9)
1. A construction method of a large-area exposed TPO waterproof coiled material is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
step one, preparing admixtures with different proportions;
secondly, carrying out a bonding force drawing test of the TPO waterproof coiled material on the admixtures in each proportion;
step three, the construction mixing proportion control range of the admixture is determined by integrating the drawing test and the material economy;
step four, the concrete surface layer is inspected to be qualified;
step five, integrally arranging the paving sequence and the lap joint position of the TPO waterproof coiled material through a two-dimensional model diagram, and dividing the field construction elastic line into squares based on the integral layout diagram to form a reference line;
step six, based on a reference line arranged on site, paving TPO waterproof coiled materials in advance, performing collision analysis on the TPO waterproof coiled materials and a building main body according to a three-dimensional model diagram, and adjusting construction local parts;
step seven, manufacturing an admixture according to the determined proportioning range of the admixture;
step eight, paving the admixture on a concrete base surface at the pre-bonding position, and carrying out wet paving construction on the TPO waterproof coiled material;
step nine, checking the bonding strength of the admixture and the TPO waterproof coiled material, and performing welding construction on the TPO waterproof coiled material;
and step ten, carrying out local node treatment on the constructed TPO waterproof coiled material, and checking and accepting the construction site.
2. The construction method of large-area exposed TPO waterproof roll according to claim 1, characterized in that: the admixture in the first step comprises an adhesive, cement and water; the blending ratio range of the admixture is as follows according to the weight ratio:
1 part of adhesive;
water: 50 parts of a mixture;
cement: 90 to 110 portions.
3. The construction method of large-area exposed TPO waterproof roll according to claim 2, characterized in that: the construction mixing proportion control range of the admixture in the third step is as follows according to the weight ratio:
adhesive: 1 part;
water: 50 parts of a mixture;
cement: 95 to 102 portions.
4. The construction method of large-area exposed TPO waterproof roll according to claim 1, characterized in that: in the fifth step, the lapping size of the lapped long edges of the same layer of the TPO waterproof coiled material is not less than 80 mm; the position of the lap seam between the upper and lower layers is not less than 1/3 of the width of the web.
5. The construction method of large-area exposed TPO waterproof roll according to claim 1, characterized in that: and seventhly, according to the determined proportion range of the admixture, the concrete operation steps for manufacturing the admixture are that according to the determined proportion range of the admixture, the adhesive is firstly put into a container, then the cement is added, the mixture is stirred, and after the mixture is uniformly stirred, the water is added, and the mixture is stirred into pasty fluid.
6. The construction method of large-area exposed TPO waterproof roll according to claim 1, characterized in that: step eight, laying the admixture on a concrete base surface at the pre-bonding position, and performing the wet laying construction of the TPO waterproof coiled material,
(1) spreading the prepared admixture on a concrete base surface at the pre-bonding position, then spreading and rolling a TPO waterproof roll layer, and discharging the redundant admixture;
(2) paving and lapping TPO waterproof coiled materials in the water direction; constructing step by step according to the reference line; the lap seam width of the coiled materials is that the long sides and the short sides are both 100mm, and the short side lap seams of two adjacent coiled materials on the upper layer and the lower layer are staggered 1/3 breadth;
(3) firstly, laying a plane coiled material, and then laying a vertical surface coiled material.
7. The construction method of large-area exposed TPO waterproof roll according to claim 1, characterized in that: and step nine, welding the overlap joint of the TPO waterproof coiled material by using an automatic welding machine and a manual welding gun, wherein the welding environment temperature is more than 5 ℃, and the hot air outlet temperature of the welding gun is about 470-570 ℃.
8. The construction method of large-area exposed TPO waterproof roll according to claim 1, characterized in that: the TPO waterproof coiled material after construction is processed by local node treatment in the step ten, the specific operation steps for checking and accepting the construction site are,
(1) the roof rainwater well, the parapet and the vertical surfaces around the air shaft are all reinforced by polypropylene fabric waterproof coiled materials;
(2) reinforcing the polypropylene cloth waterproof coiled material at the roof rainwater well, and then reinforcing the asphalt waterproof coiled material;
(3) constructing and processing the corners, the internal corners and the external corners of the upper wall of the roof;
(4) and after the construction is finished, each welding line is checked by using a vacuum leak detector, the welding-missing and skip-welding results are confirmed, the welding line is subjected to a water leakage test, and the acceptance is qualified if no leakage exists.
9. The construction method of large-area exposed TPO waterproof roll according to claim 8, characterized in that: the concrete operation steps of the construction treatment of the corners, the internal corners and the external corners of the upper wall of the roof in the step ten are as follows,
constructing the corners of the upper wall of the roof: fixing the plane waterproof coiled material and the vertical waterproof coiled material at the corner of the upper wall, and smearing sealant at the closing gap of the upper wall; covering with a layer of additional waterproof coiled material, and welding the additional waterproof coiled material, the planar waterproof coiled material and the vertical waterproof coiled material into a whole;
and (3) carrying out external corner flashing construction: installing a fixing piece at a position 150mm away from the external corner of the additional waterproof coiled material to relatively fix the additional waterproof coiled material and the planar waterproof coiled material; trimming the external corner of the additional waterproof coiled material, coating sealing paste, welding the external corner prefabricated coiled material at the trimming position for the first time, and covering and welding the external corner prefabricated coiled material which is used for the first welding and has a larger area at the trimming position for the second time;
and (3) carrying out inside corner flashing construction: installing a fixing piece at a position 150mm away from the internal corner of the additional waterproof coiled material to relatively fix the additional waterproof coiled material and the planar waterproof coiled material; and (3) trimming at the internal corner of the additional waterproof coiled material and coating sealing paste, welding the internal corner prefabricated coiled material at the trimming position for the first time, and covering and welding the internal corner prefabricated coiled material which is used for the first time and has the larger area at the trimming position for the second time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395819.9A CN113931389A (en) | 2021-11-23 | 2021-11-23 | Construction method of large-area exposed TPO waterproof coiled material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395819.9A CN113931389A (en) | 2021-11-23 | 2021-11-23 | Construction method of large-area exposed TPO waterproof coiled material |
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Application publication date: 20220114 |