CN111173045A - Construction method for pre-paving and reversely adhering TPO (thermoplastic polyolefin) waterproof coiled material of basement bottom plate - Google Patents
Construction method for pre-paving and reversely adhering TPO (thermoplastic polyolefin) waterproof coiled material of basement bottom plate Download PDFInfo
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- CN111173045A CN111173045A CN201911420348.5A CN201911420348A CN111173045A CN 111173045 A CN111173045 A CN 111173045A CN 201911420348 A CN201911420348 A CN 201911420348A CN 111173045 A CN111173045 A CN 111173045A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2450/00—Gaskets
- E02D2450/10—Membranes
- E02D2450/105—Membranes impermeable
- E02D2450/106—Membranes impermeable for liquids
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2450/00—Gaskets
- E02D2450/10—Membranes
- E02D2450/108—Membranes multi-layered
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Abstract
The invention discloses a construction method for pre-paving and reversely sticking TPO (thermoplastic polyolefin) waterproof rolls on a basement bottom plate, which relates to the technical field of underground building waterproofing and comprises the following steps: step 1, base layer treatment: processing the internal corner and the external corner of the base layer into arc shapes or slope angles; step 2, pile head treatment: cleaning a pile head, and brushing a waterproof coating layer on the pile head and the periphery of the pile head; step 3, snapping a line: paying off and popping out a gauge line for paving and pasting the TPO waterproof coiled material on the base layer; step 4, pre-paving coiled materials: pre-paving the TPO waterproof coiled material on the base layer according to the gauge lines; step 5, welding a seam of the coiled material: welding the seam of the TPO waterproof coiled material by using hot air welding equipment; the method has wide application range, good waterproof performance and no waterproof blind area.
Description
Technical Field
The invention belongs to the technical field of underground building waterproofing, and particularly relates to a construction method for pre-paving and reversely sticking TPO (thermoplastic polyolefin) waterproof coiled materials on a basement bottom plate.
Background
The construction of the underground engineering waterproofing membrane pre-paving anti-sticking method means that the waterproofing membrane is pre-paved on a firm and flat concrete cushion layer without obvious water accumulation in advance, then the steel bar is directly tied up to pour concrete, the later poured concrete is permanently bonded with the pre-paved waterproofing membrane into a whole, the full adhesion is achieved, the hidden danger of water channeling in the middle is avoided, even if the local part of the membrane is damaged, water can be limited in a very small range, the waterproofing membrane is not bonded with the cushion layer in a hollow paving mode, the influence of deformation and cracking of the cushion layer caused by building settlement is avoided, and the reliability of the waterproofing membrane of the membrane is ensured.
Based on the advantages, the application of the pre-paved waterproof roll and the construction of the pre-paved reverse bonding method in underground engineering is more and more extensive, for example, patent CN106120873B discloses a construction method of a pre-paved reverse bonding composite polymer waterproof roll of a piled raft foundation, which mainly provides the construction of the polyethylene polypropylene fiber pre-paved reverse bonding method and the waterproof treatment of detail nodes such as deformation joints, internal and external corners and the like; for example, patent CN109267592 discloses a construction method of a wall internal corner pre-paved anti-sticking waterproof roll, which mainly provides pre-paved anti-sticking construction of a high molecular self-adhesive film waterproof roll and wall internal corner treatment; above-mentioned two kinds of waterproofing membrane of paving anti-sticking construction in advance can effectually prevent scurrying the water phenomenon, guarantees the reliability of waterproof layer, but these two kinds of polymer waterproofing membrane have restricted the use of coiled material in adverse circumstances and coastal area underground works greatly because the limitations of its self material such as non-weldability, material are hard, weatherability is not good, acid and alkali salt resistance is high low temperature resistant nature is poor. Patent CN109183844A discloses a pipe gallery bottom plate is spread in advance and is turned over construction method who glues type TPO waterproofing membrane, mainly is to the TPO waterproofing membrane of pipe gallery bottom plate is spread in advance and is turned over the construction of gluing, does not handle the TPO waterproofing membrane at pile head department, various major position of getting rid of the racking position, overlap joint and negative and positive angle department overlap joint etc. and have had the major position of waterproof seepage, has caused waterproofing and has had the blind area.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a construction method for pre-paving and reversely adhering a TPO waterproof coiled material of a basement bottom plate, effectively solves the technical problems in pre-paving and reversely adhering construction of the TPO waterproof coiled material of the basement, and has the advantages of wide application range, good waterproof performance and no waterproof blind area.
In order to achieve the purpose, the invention provides a construction method for pre-paving and reversely adhering TPO waterproof coiled materials on a basement bottom plate, which comprises the following steps:
step 3, snapping a line: paying off and popping out a gauge line for paving and pasting the TPO waterproof coiled material on the base layer;
Optionally, in the step 1, the slope angle is in a range of 40 ° to 50 °.
Optionally, the pile head processing comprises:
cleaning cement slurry on the surface of a reinforcing steel bar and concrete scattered on the surface of the pile head;
blowing away dust and impurities;
wetting the pile head surface.
Optionally, in the step 2, a waterproof coating layer is coated in a range of the width of 250-500 mm around the pile head, and the waterproof coating layer is a cement-based capillary crystalline waterproof coating layer.
Optionally, in the step 4, when the TPO waterproof roll is pre-paved, a lap edge is reserved on a long side of the TPO waterproof roll, a width range of the lap edge is 60mm to 100mm, and short sides of the TPO waterproof roll are pre-paved in a manner of being butted with each other.
Optionally, in the step 4, the TPO waterproof roll is pre-laid on the base layer according to the gauge lines by using a pre-laying reverse adhesion construction.
Optionally, the step 4 further includes:
when TPO waterproofing membrane spreads in advance during the position of pile head the last diameter of cutting out of TPO waterproofing membrane is greater than the round hole of pile head to seal the binding off with polysulfide sealant, seal TPO waterproofing membrane with the gap at pile head handing-over position.
Optionally, the step 5 includes:
cleaning the overlapping edge of the long edge of the TPO waterproof coiled material;
and welding the overlapping edges of the long edges of the TPO waterproof coiled material by using hot air welding equipment.
Optionally, the step 5 further includes:
TPO waterproofing membrane's minor face butt joint department lays 120mm to 160mm wide supplementary welding TPO waterproofing membrane, will TPO waterproofing membrane welds respectively on supplementary welding TPO waterproofing membrane.
Optionally, said step 4 further comprises racking said TPO waterproofing membrane; wherein:
when the TPO waterproof coiled material is subjected to throwing racking of an L-shaped bottom plate brick bed membrane coiled material, the TPO waterproof coiled material is thrown to 80-100 mm below the top surface of a brick bed membrane protection wall, and the edge of the throwing racking part of the TPO waterproof coiled material is fixed through a cement nail;
when the TPO waterproof coiled material is subjected to flinging of a toe plate type bottom plate brick membrane coiled material, reserving a 150-250 mm wide flinging portion at the edge of the TPO waterproof coiled material, flinging the flinging portion to a brick membrane protection wall, and arranging a temporary wall to protect the flinging portion;
when the TPO waterproof coiled material is subjected to L-shaped bottom plate surrounding structure coiled material racking, racking the TPO waterproof coiled material onto the side wall of a surrounding structure, so that the height of a racking part of the TPO waterproof coiled material is 500-800 mm higher than that of a side wall construction joint, and the edge of the racking part of the TPO waterproof coiled material is fixed through a cement nail;
work as TPO waterproofing membrane carries out when toe board type bottom plate envelope coiled material gets rid of the racking, will TPO waterproofing membrane gets rid of on racking to envelope's the lateral wall, makes TPO waterproofing membrane get rid of the racking portion highly be higher than above bottom plate upper surface 200mm, TPO waterproofing membrane get rid of racking part edge and fix through the cement nail.
The invention provides a construction method for pre-paving and reversely adhering TPO (thermoplastic polyolefin) waterproof coiled materials on a basement bottom plate, which has the beneficial effects that:
1. the TPO waterproof coiled material used in the invention has the weather resistance and heat resistance of ethylene propylene rubber and the weldability of polypropylene, can keep the flexibility of the coiled material below minus 50 ℃, can keep the mechanical strength at higher temperature, has excellent high and low temperature resistance, has excellent chemical corrosion resistance, acid resistance, alkali resistance, salt resistance and other properties, can be suitable for severe environments such as severe cold, saline-alkali soil, acid soil and the like and waterproof engineering of underground buildings in coastal areas, and effectively ensures the waterproof quality and the service life of the buildings;
2. the construction method of the pre-paved and anti-sticking TPO waterproof coiled material of the basement bottom plate, provided by the invention, comprises the steps of laying the TPO waterproof coiled material on a base layer in a vacant way, a leveling layer, a coiled material additional layer and a protective layer are not required to be arranged, directly binding reinforced poured concrete after pre-paving, and being not influenced by the base layer and the weather humidity, so that the waterproof construction cost and the construction period are greatly reduced, the later-poured concrete and the pre-paved waterproof coiled material are permanently bonded into a whole, the full adhesion is achieved, the potential water channeling hazard is avoided in the middle, even if the coiled material is locally damaged, water can be limited in a very small range, the waterproof layer of the coiled material is not bonded with the vacant way of laying the cushion layer, the deformation and cracking caused by building;
3. according to the invention, the waterproof at the pile head is effectively treated, the TPO waterproof coiled material and the basement bottom plate are poured together, when the building is settled, the TPO waterproof coiled material and the basement bottom plate are guaranteed to be settled together, the coiled material is not damaged due to the stress action at the pile head, and meanwhile, the flexible polysulfide sealant can be deformed and is not damaged when the basement bottom plate is settled, so that the integrity of the whole waterproof layer is guaranteed;
4. the invention processes key parts with waterproof leakage, such as various racking parts, seams, male and female corners and the like, ensures the waterproof quality of the TPO waterproof coiled material at detailed nodes, and avoids waterproof blind areas of the TPO waterproof coiled material in pre-laying and reverse-bonding construction of a basement.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic diagram of a pile head waterproof structure of a basement floor pre-paved and anti-bonded TPO waterproof roll construction method according to an embodiment of the invention.
Fig. 2 is a schematic diagram illustrating a long-side overlapping structure of a TPO waterproof roll in a basement floor pre-paving and reverse-adhering TPO waterproof roll construction method according to an embodiment of the invention.
Fig. 3 is a schematic diagram showing a short edge butt joint structure of a TPO waterproof roll in a basement floor pre-paving and anti-sticking TPO waterproof roll construction method according to an embodiment of the invention.
Fig. 4 shows a schematic diagram of a butt joint structure of an internal corner portion of a TPO waterproof roll of a basement floor pre-paving and reverse-adhering TPO waterproof roll construction method according to an embodiment of the invention.
Fig. 5 shows a schematic diagram of an external corner part butt joint structure of a TPO waterproof roll of a basement floor pre-paving and reverse-adhering TPO waterproof roll construction method according to an embodiment of the invention.
Fig. 6 shows a schematic diagram of an L-shaped floor brick blank film coil racking structure of a basement floor pre-laying reverse adhesion TPO waterproof coil construction method according to an embodiment of the invention.
Fig. 7 shows a toe board type bottom board brick bed film coil racking structure schematic diagram of a construction method for pre-laying and reversely adhering a TPO waterproof coil of a basement bottom board according to one embodiment of the invention.
Fig. 8 shows a schematic diagram of an L-shaped floor surrounding structure coil racking structure of a basement floor pre-laying reverse adhesion TPO waterproof coil construction method according to an embodiment of the invention.
Fig. 9 shows a schematic diagram of a toe board type floor enclosure coiled material racking structure of a construction method for pre-laying and reversely adhering a TPO waterproof coiled material on a basement floor according to an embodiment of the invention.
Description of reference numerals:
1. a base layer; 2. pile head; 3. a waterproof coating layer; 4. TPO waterproof coiled material; 5. a concrete floor; 6. polysulfide sealant; 7. auxiliary welding of TPO waterproof coiled materials; 8. brick bed film protecting wall; 9. a cement nail; 10. a temporary wall; 11. an enclosure structure; 12. welding seams; 13. and (7) a water stop steel plate.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a construction method for pre-paving and reversely adhering TPO (thermoplastic polyolefin) waterproof coiled materials on a basement bottom plate, which comprises the following steps of:
step 3, snapping a line: paying off and popping a gauge line for paving and pasting a TPO waterproof coiled material on a base layer;
Specifically, the base layer is checked and accepted before the step 1, the base layer is checked and accepted under the conditions that the base layer is firm, flat, clean and free of open water, and the pre-buried rod pieces and the anti-floating anchor rods are finished; the TPO waterproof coiled material is composed of a thermoplastic polyolefin sheet, self-adhesive glue and a surface anti-sticking protective layer, has excellent high and low temperature resistance, and has excellent chemical corrosion resistance, acid resistance, alkali resistance, salt resistance and other properties; when the TPO waterproof coiled material is welded, the welding and the inspection are carried out simultaneously, and the parts which are not welded are found to be repaired in time, so that any hidden danger cannot be left; after the step 5, the pre-paving construction of the TPO waterproof coiled material is checked and accepted according to the national standard 'underground waterproof engineering quality acceptance standard' (GB 50208-2011); and after the TPO waterproof coiled material is pre-paved and welded, a concrete bottom plate is poured on the upper side of the TPO waterproof coiled material, and an additional layer and a protective layer are not needed.
Alternatively, in step 1, the ramp angle is in the range of 40 ° to 50 °, preferably 45 °.
Specifically, the setting of slope angle can make TPO waterproofing membrane's the department of buckling as far as possible slick and sly, and the angle of avoiding buckling is too big to lead to TPO waterproofing membrane's damage.
Optionally, the pile head processing comprises:
cleaning cement slurry on the surface of the steel bar and concrete scattered on the surface of the pile head;
blowing away dust and impurities;
wetting the pile head surface.
Specifically, the concrete slurry on the surface of the steel bar and the loose concrete on the surface of the pile head can be cleaned by using a steel brush, dust cleaned by the pile head is blown out by using a blower, and the surface of the pile head is wet but clear water cannot be remained by cleaning details by using a brush.
Optionally, in step 2, a waterproof coating layer is coated in a range of the width of 250-500 mm around the pile head, and the waterproof coating layer is a cement-based capillary crystalline waterproof coating layer.
Specifically, the waterproof performance of the weak waterproof performance area at the pile head can be improved by the waterproof coating layer, and the overall waterproof effect is improved.
Optionally, in step 4, when the TPO waterproofing membrane is pre-laid, a lap edge is reserved on a long edge of the TPO waterproofing membrane, the width range of the lap edge is 60mm to 100mm, and short edges of the TPO waterproofing membrane are pre-laid in a manner of being butted with each other.
Optionally, in step 4, a pre-laying and reverse-adhering construction is adopted to pre-lay the TPO waterproof roll on the base layer according to the ruled lines.
Specifically, TPO waterproofing membrane is according to rule line pre-paving can avoid the coiled material to take place slope, misalignment or dislocation when pre-paving on the basic unit.
Optionally, step 4 further comprises:
when TPO waterproofing membrane pre-paved to the position of pile head, cut out the round hole that the diameter is greater than the pile head on TPO waterproofing membrane to seal the binding off with polysulfide sealant, seal the gap at TPO waterproofing membrane and pile head handing-over position.
Specifically, the flexible polysulfide sealant can be deformed and not damaged when the basement bottom plate is settled, so that the integrity of the whole waterproof layer is ensured.
Optionally, step 5 comprises:
cleaning the overlapping edge of the long edge of the TPO waterproof coiled material;
and welding the overlapping edges of the long edges of the TPO waterproof coiled material by using hot air welding equipment.
Specifically, an automatic hot air welding machine is adopted for welding a large surface, local manual welding is adopted, a welding line is one, and the width of the welding line is 15-40 mm.
Optionally, step 5 further comprises:
lay 120mm to the wide supplementary welding TPO waterproofing membrane of 160mm in TPO waterproofing membrane's minor face butt joint department, weld TPO waterproofing membrane respectively on supplementary welding TPO waterproofing membrane.
Specifically, the lapped welding seam of minor face is two, and the welding seam width is 15 ~ 40mm, and supplementary welding TPO waterproofing membrane can adopt homogeneity type TPO waterproofing membrane.
Optionally, step 4 further comprises racking the TPO waterproofing membrane; wherein:
when the TPO waterproof coiled material is subjected to throwing racking of an L-shaped bottom plate brick bed membrane coiled material, the TPO waterproof coiled material is thrown and racking to 80-100 mm below the top surface of a brick bed membrane protection wall, and the edge of the throwing racking part of the TPO waterproof coiled material is fixed through a cement nail;
when the TPO waterproof coiled material is subjected to racking of a toe plate type bottom plate brick membrane coiled material, reserving a racking part with the width of 150mm to 250mm at the edge of the TPO waterproof coiled material, racking the racking part to a brick membrane protection wall, and arranging a temporary wall protection racking part;
when the TPO waterproof coiled material is subjected to L-shaped bottom plate surrounding structure coiled material racking, the TPO waterproof coiled material is racking to the side wall of the surrounding structure, the racking part of the TPO waterproof coiled material is higher than the side wall construction joint by 500-800 mm, and the edge of the racking part of the TPO waterproof coiled material is fixed through a cement nail;
when TPO waterproofing membrane carried out toe board type bottom plate envelope coiled material and gets rid of the racking, get rid of the TPO waterproofing membrane on racking to envelope's the lateral wall, make TPO waterproofing membrane get rid of the racking part highly be higher than the bottom plate upper surface more than 200mm, TPO waterproofing membrane get rid of the racking part edge and fix through the cement nail.
Concrete, adopt different types of getting rid of the racking mode according to the construction conditions of difference, improve the basement water-proof effects under the different construction conditions.
Examples
As shown in fig. 1 to 5, the invention provides a construction method for pre-paving and reversely adhering a TPO waterproof roll material on a basement floor, which comprises the following steps:
step 3, snapping a line: a marking line for spreading and popping a TPO waterproof coiled material 4 on the base layer 1;
In the present embodiment, in step 1, the slope angle ranges from 40 ° to 50 °.
In this embodiment, pile head 2 processing includes:
cleaning cement slurry on the surface of the steel bar and concrete scattered on the surface of the pile head 2;
blowing away dust and impurities;
wetting the pile head surface.
In the embodiment, in the step 2, the waterproof coating layer 3 is coated in a range of 250-500 mm wide around the pile head 2, and the waterproof coating layer 3 is a cement-based capillary crystalline waterproof coating layer.
In this embodiment, in step 4, when the TPO waterproofing membrane 4 is pre-laid, a lap edge is reserved on the long side of the TPO waterproofing membrane 4, the width range of the lap edge is 60mm to 100mm, and the short sides of the TPO waterproofing membrane 4 are pre-laid in a manner of being butted against each other.
In this embodiment, in step 4, a TPO waterproofing membrane 4 is pre-laid on the base layer 1 according to the gauge lines by using a pre-laying reverse adhesion construction.
In this embodiment, step 4 further includes:
when TPO waterproofing membrane 4 paves the position of pile head 2 in advance, cut out the round hole that the diameter is greater than pile head 2 on TPO waterproofing membrane 4 to seal up with polysulfide sealant 6, seal up the gap at TPO waterproofing membrane 4 and pile head 2 handing-over position.
In this embodiment, step 5 includes:
cleaning the overlapping edge of the long edge of the TPO waterproof coiled material 4;
the overlapping edges of the long sides of TPO waterproofing membrane 4 are welded using hot air welding equipment.
Furthermore, an automatic hot air welding machine is adopted for welding a large surface, local manual welding is adopted, the welding line 12 is one, and the width of the welding line 12 is 15-40 mm.
In this embodiment, step 5 further includes:
laying the wide supplementary welding TPO waterproofing membrane 7 of 120mm to 160mm in TPO waterproofing membrane 4's minor face butt joint department, weld TPO waterproofing membrane 4 respectively on supplementary welding TPO waterproofing membrane 7.
Further, the lapped welding seam 12 of minor face is two, and the welding seam 12 width is 15 ~ 40mm, and supplementary welding TPO waterproofing membrane can adopt homogeneity type TPO waterproofing membrane.
In this embodiment, step 4 further comprises racking TPO waterproofing membrane 4; wherein:
as shown in fig. 6, when the TPO waterproof roll 4 is thrown and racking on the L-shaped bottom plate brick membrane roll, the TPO waterproof roll is thrown and racking to 80mm to 100mm below the top surface of the brick membrane protection wall 8, and the edge of the throwing and racking part of the TPO waterproof roll 4 is fixed by a cement nail 9;
as shown in fig. 7, when the TPO waterproof roll 4 is thrown, a 150mm to 250mm wide throwing portion is reserved at the edge of the TPO waterproof roll 4, the throwing portion is thrown to a brick membrane protection wall 8, and a temporary wall 10 is arranged to protect the throwing portion;
as shown in fig. 8, when the TPO waterproof roll 4 is ripped from the L-shaped bottom plate enclosure structure roll, the TPO waterproof roll 4 is ripped onto the side wall of the enclosure structure 11, so that the ripping portion of the TPO waterproof roll 4 is 500mm to 800mm higher than the side wall construction joint, and the edge of the ripping portion of the TPO waterproof roll 4 is fixed by a cement nail 9;
as shown in FIG. 9, when TPO waterproofing membrane 4 carries out toe board type bottom plate envelope coiled material and throws the racking, throw TPO waterproofing membrane 4 on the lateral wall of racking to envelope 11, make TPO waterproofing membrane 4 throw the racking height of part be higher than the bottom plate upper surface more than 200mm, TPO waterproofing membrane 4 throw the racking part edge and fix through cement nail 9.
After TPO waterproofing membrane 4 paves the welding in advance and accomplishes, pour concrete bottom plate 5 at 4 upsides of TPO waterproofing membrane, when TPO waterproofing membrane 4 carries out foot toe board type bottom plate brick child membrane coiled material and gets rid of the raft or carry out toe board type bottom plate envelope coiled material and get rid of the raft, bury stagnant water steel sheet 13 underground at the bottom plate upper end that the basement outer wall need be pour to toe board type bottom plate, improve whole waterproof performance.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a basement bottom plate pre-paved anti-adhesion TPO waterproofing membrane construction method which characterized in that includes:
step 1, base layer (1) processing: processing the internal corner and the external corner of the base layer into arc shapes or slope angles;
step 2, pile head (2) processing: cleaning a pile head (2), and brushing a waterproof coating layer (3) on the pile head (2) and around the pile head (2);
step 3, snapping a line: paying off and popping out a gauge line paved with the TPO waterproof coiled material (4) on the base layer (1);
step 4, pre-paving coiled materials: pre-laying the TPO waterproof coiled material (4) on the base layer (1) according to the gauge lines;
step 5, welding a seam of the coiled material: and welding the seam of the TPO waterproof coiled material (4) by using hot air welding equipment.
2. The construction method of pre-paved and reversely adhered TPO waterproof roll of basement floor according to claim 1, wherein in the step 1, the slope angle ranges from 40 degrees to 50 degrees.
3. The basement floor pre-paving and reverse-adhering TPO waterproof coiled material construction method according to claim 1, wherein the pile head (2) treatment comprises the following steps:
cleaning cement slurry on the surface of a steel bar and concrete scattered on the surface of the pile head (2);
blowing away dust and impurities;
wetting the pile head surface.
4. The construction method of pre-paved and reversely adhered TPO waterproof roll of basement floor according to claim 1, wherein in the step 2, the waterproof coating layer (3) is coated on the periphery of the pile head (2) within a range of 250-500 mm wide, and the waterproof coating layer (3) is a cement-based permeable crystalline waterproof coating layer.
5. The basement floor pre-paving and reverse-adhering TPO waterproof coiled material construction method according to claim 1, wherein in the step 4, when the TPO waterproof coiled material (4) is pre-paved, overlapping edges are reserved on long edges of the TPO waterproof coiled material (4), the width range of the overlapping edges is 60 mm-100 mm, and short edges of the TPO waterproof coiled material (4) are pre-paved in a way of being mutually butted.
6. The construction method of pre-paved and anti-adhered TPO waterproof roll of basement floor according to claim 1, wherein in the step 4, the TPO waterproof roll (4) is pre-paved on the base layer (1) according to the ruled line by adopting pre-paved and anti-adhered construction.
7. The construction method of pre-paved and anti-adhered TPO waterproof roll of basement floor according to claim 1, wherein the step 4 further comprises:
when TPO waterproofing membrane (4) pave in advance during the position of pile head (2) cut out the diameter on TPO waterproofing membrane (4) and be greater than the round hole of pile head (2) to seal up with polysulfide sealant (6), seal TPO waterproofing membrane (4) with the gap at pile head (2) handing-over position.
8. The construction method of pre-paved and anti-adhered TPO waterproof roll of basement floor according to claim 5, wherein the step 5 comprises:
cleaning the overlapping edge of the long edge of the TPO waterproof coiled material (4);
and welding the overlapping edges of the long edges of the TPO waterproof coiled material (4) by using hot air welding equipment.
9. The construction method of pre-paved and anti-adhered TPO waterproof roll of basement floor according to claim 8, wherein the step 5 further comprises:
TPO waterproofing membrane (4)'s minor face butt joint department lays the wide supplementary welding TPO waterproofing membrane (7) of 120mm to 160mm, will TPO waterproofing membrane (4) welds respectively on supplementary welding TPO waterproofing membrane (7).
10. The construction method of pre-paved and reversely adhered TPO waterproof roll of basement floor according to claim 1, wherein the step 4 further comprises racking the TPO waterproof roll (4); wherein:
when the TPO waterproof coiled material (4) is subjected to throwing racking of an L-shaped bottom plate brick bed membrane coiled material, the TPO waterproof coiled material is thrown to a position 80mm to 100mm below the top surface of a brick bed membrane protection wall (8), and the edge of the throwing racking part of the TPO waterproof coiled material (4) is fixed through a cement nail (9);
when the TPO waterproof coiled material (4) is subjected to foot toe plate type bottom plate brick membrane coiled material racking, reserving 150-250 mm wide racking parts at the edge of the TPO waterproof coiled material (4), racking the racking parts to a brick membrane protection wall (8), and arranging a temporary wall (10) to protect the racking parts;
when the TPO waterproof coiled material (4) is subjected to L-shaped bottom plate surrounding structure coiled material racking, racking the TPO waterproof coiled material (4) onto the side wall of a surrounding structure (11), so that the racking part of the TPO waterproof coiled material (4) is higher than the side wall construction joint by 500-800 mm, and the edge of the racking part of the TPO waterproof coiled material (4) is fixed through a cement nail (9);
work as TPO waterproofing membrane (4) carry out toe board type bottom plate envelope coiled material and get rid of when the racking, will TPO waterproofing membrane (4) get rid of on the lateral wall of racking to envelope (11), make TPO waterproofing membrane (4) get rid of the racking part highly be higher than above bottom plate upper surface 200mm, the racking part edge that gets rid of TPO waterproofing membrane (4) is fixed through cement nail (9).
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| CN112709380A (en) * | 2020-12-25 | 2021-04-27 | 宏源防水科技集团有限公司 | Construction method and application of coated and rolled composite waterproof system |
| CN112922030A (en) * | 2021-03-24 | 2021-06-08 | 江苏凯伦建材股份有限公司 | Construction method for pre-laying waterproof coiled material overlap edge on bottom plate and bottom plate side mold supporting structure |
| CN113356280A (en) * | 2021-06-24 | 2021-09-07 | 中国十九冶集团有限公司 | Construction method of basement raft foundation waterproof roll based on air-laid method |
| CN113431099A (en) * | 2021-06-19 | 2021-09-24 | 北京冠翔时代防水工程有限公司 | Clamp for laying waterproof coiled material and construction method of waterproof coiled material at brick bed die position |
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