CN110735493A - Compound waterproof system of kind of flat roofing antiseep - Google Patents
Compound waterproof system of kind of flat roofing antiseep Download PDFInfo
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- CN110735493A CN110735493A CN201910939870.8A CN201910939870A CN110735493A CN 110735493 A CN110735493 A CN 110735493A CN 201910939870 A CN201910939870 A CN 201910939870A CN 110735493 A CN110735493 A CN 110735493A
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- paving
- bricks
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- construction
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/32—Roof garden systems
Abstract
The invention discloses an composite waterproof system for flat roof leakage prevention, which relates to the technical field of building waterproof, and comprises base layer treatment and cushion layer construction, reinforcing steel bar binding holes, elevation control point installation, concrete pouring, trowelling machine slurry lifting and trowelling, vacuum water absorption, surface layer construction, heating non-cured rubber asphalt waterproof coating, base layer cleaning, node reinforcement treatment, trial-laid coiled material, construction non-cured rubber asphalt waterproof coating, self-adhesive coiled material paving and lapping, concrete base layer treatment, surface layer elevation finding, line snapping, water sprinkling and wetting, plaster cake and gauge bars, cement mortar paving among the gauge bars, elastic brick paving control lines, brick paving, seam pulling and correction, seam pointing and seam wiping and maintenance.
Description
Technical Field
The invention relates to the technical field of building waterproofing, in particular to an flat roof anti-leakage composite waterproof system.
Background
The house leakage problem in China is severe, the house leakage problem has a universality of , according to the investigation of an authority, the underground leakage rate is 57%, the roof leakage rate is 95%, the national average leakage rate is 65%, and the difficulty of leakage plugging is very high when denier occurs, because the leakage point of water leakage is difficult to find, the leakage point is often plugged, in addition, points start to leak, and finally, the leakage is more blocked, the leakage repairing work is very difficult, and the cost is high.
Disclosure of Invention
() problems to be solved
Aiming at the defects of the prior art, the invention provides an flat roof anti-leakage composite waterproof system, which has the advantages of effectively solving the problem of flat roof leakage, being capable of pushing in a large range and the like, and solves the problem of flat roof leakage.
(II) technical scheme
In order to achieve the purpose of effectively solving the leakage problem of the flat roof and pushing in a large range, the invention provides the following technical scheme that the anti-leakage composite waterproof system for the flat roof comprises the following process flows:
s1, base layer treatment and cushion layer construction: predetermining a concrete building ground construction process, configuring a proper amount of construction mechanical equipment and labor force, well performing maintenance work on construction machinery, ensuring building ground construction continuity, checking unreasonable drainage parts in an original design drawing, performing deepening design, and determining a water diversion line and a drainage direction;
s2, steel bar hole binding: binding steel bars according to design specifications, arranging cushion blocks below the steel bars, arranging cushion blocks or support horses between double-layer steel bars for supporting, ensuring the accuracy of the positions of the steel bars and the thickness of an upper steel bar protective layer, arranging an anti-cracking steel bar net at positions, where cracks are easy to appear, around reserved holes, wherein the diameter of the reserved holes is more than or equal to 300 mm;
s3, mounting an elevation control point: placing a side form support mounting template on a base layer according to a paying-off position, primarily fixing the position of the side form support mounting template, checking whether the elevation of the top of the template meets the design requirement by using a level gauge, checking whether the template is straight, fixing the template by using a support, setting the highest point and the lowest point on a roof panel by using steel bars according to the paying-off slope, and pulling out a construction line;
s4, concrete pouring and tamping: when concrete is poured, the slump is controlled to be 142mm in 138-fold mode, the concrete is vibrated and compacted by an inserted vibrating rod, a flat vibrator is used for vibrating to enable the surface of the concrete to be compact, no bubbles rise, slurry is uniformly generated, after vibrating, a level gauge is used for detecting the level condition, the deviation part is adjusted, the structural layer concrete is poured and compacted, and the construction line mark is used as a boundary;
s5, performing size lifting and finishing by a finishing machine: the concrete pouring of the terrace adopts a beam type vibrating machine to vibrate and is placed on channel steel, and an operator pulls the traction ropes arranged at the two ends of the vibrating machine back and forth according to the running direction of a vibrating motor to vibrate and strike off the concrete;
s6, vacuum water absorption: after the concrete surface is obviously drained, pressing the concrete surface by fingers without finger marks or leaving only slight marks by stepping on the concrete surface, and finishing vacuum suction;
s7, surface layer construction, namely, repeatedly troweling and compacting by adopting a troweling machine, simultaneously carrying out scraping and leveling by moving a 3.5-5.5 m scraping rule into steps, finishing rough troweling after the whole surface layer is trowelled and compacted and primary pulp is adjusted, and finishing the rough troweling work shortly after the initial setting of concrete;
s8, heating the non-cured rubber asphalt waterproof coating: putting a special heater into a rubber asphalt coating iron bucket for heating, so that the rubber asphalt coating is completely melted into a fluid state for later use;
s9, base layer cleaning: cleaning up dust and sundries on the surface of the base layer by using tools such as a broom, an iron shovel, a dust remover and the like, and repairing and leveling uneven parts by using cement mortar;
s10, reinforcing the joints, namely reinforcing the joints by adopting non-cured rubber asphalt waterproof paint, scraping or rolling and brushing times of the non-cured rubber asphalt paint on the joints such as internal and external corners by using a scraper, then pasting glass fiber gridding cloth, then completely covering the gridding cloth by scraping or rolling and brushing the rubber asphalt waterproof paint, wherein the brushing width of the additional layer is 300mm, and two sides of each corner are respectively half;
s11, paving the coiled material in a trial mode, namely popping a reference line on a base layer according to the paving direction of the coiled material, naturally spreading the coiled material with root prick resistance, placing the coiled material according to a control line, paving the coiled material in a trial mode, aligning the coiled material with the reference line at any time, carefully correcting the position of the coiled material, and then rolling the coiled material from two ends to the middle or from ends to ends;
s12, construction of the non-cured rubber asphalt waterproof coating: pouring the heated non-cured rubber asphalt waterproof coating on a base layer, and uniformly coating the non-cured rubber asphalt waterproof coating on the base layer by using a scraper, wherein the coating thickness is uniform;
s13, paving self-adhesive coiled materials and lapping: coating and scraping the non-cured rubber asphalt waterproof coating, simultaneously pasting the self-adhesive coiled material on the coating, simultaneously lapping the lapping edge of the self-adhesive coiled material with the lapping width of 80mm, and baking the coiled material out of asphalt slurry;
s14, concrete base layer treatment: cleaning up impurities on the concrete base layer, removing the ultrahigh floor and the ultra-flat wall surface parts and the floor ash of mortar by using a chisel, brushing up the laitance layer by using a steel wire brush, and paying attention to the protection of the hydroelectric pipelines in the treatment process;
s15, finding the elevation of the surface layer and snapping the line: measuring the surface layer elevation downwards according to a 1m horizontal elevation line on the wall, and bouncing the surface layer elevation on the wall;
s16, sprinkling water for moistening, namely sprinkling water for times uniformly on the ground base layer on the cleaned base layer by using a sprinkling can;
s17, plastering cakes and marking ribs, namely measuring the height from the lower part of the horizontal line of the elastic surface layer to the height of the upper skin of the leveling layer, wherein the distance between the plastering cakes is 1.5m, the upper level of the plastering cake is the height of the cement mortar leveling layer, then plastering the marking ribs from the side of a room , and plastering the marking ribs in the room with the floor drain in a radial manner from the periphery to the direction of the floor drain, and finding the slope, wherein the plastering cakes and the marking ribs use dry and hard mortar, and the thickness is not less than 20 mm;
s18, paving cement mortar among the standard ribs, namely cleaning residual slurry slag of the smeared standard ribs, coating cement mortar bonding layers, coating mortar along with the smeared rib layers, then paving the mixed cement mortar among the standard ribs by using a small flat spade or a wooden trowel according to the elevation of the standard ribs, spreading and compacting the cement mortar by using the wooden trowel, scraping the small wooden trowel, flattening the cement mortar by using the wooden trowel, leveling the paved mortar and the standard ribs, checking the flatness of the cement mortar by using a large wooden trowel in the transverse and vertical directions, checking whether the elevation and the flashing gradient are correct or not, and watering and maintaining after 24 hours;
s19, a brick-flipping control line, namely, when the compressive strength of mortar in a leveling layer reaches 1.2MPa, starting to launch a control line of bricks, determining the width of a gap for tile paving according to design requirements and the specification and size of the bricks, when the design is random and fixed, the width of the tight paving gap is not more than 1mm, the paving width of a virtual gap is 5-10mm, in a room division, arranging the size in the longitudinal direction and the transverse direction, when the size is less than the multiple of the whole bricks, using non-integral bricks at the corners, arranging the row which is transversely parallel to openings as the whole bricks, using the non-integral bricks at the corners, longitudinally arranging the non-integral bricks in the room, arranging the non-integral bricks at the two wall sides, and arranging with the size not less than the side length of the whole bricks, and flipping longitudinal and transverse control lines on the ground and flipping the brick at intervals of control lines according to the determined number of the bricks and;
s20, paving bricks, namely sprinkling water on a leveling layer for wetting, uniformly brushing plain cement paste, smearing bonding mortar upwards on the back of each brick during paving, paving the bricks on the leveling layer made of the cement paste with the brushed level, enabling the upper edges of the bricks to be slightly higher than horizontal marking lines, aligning, straightening and finding directions, then paving the bricks with a wood-padded plate, compacting the bricks by using a rubber hammer, sequentially retreating from inside to outside to pave the bricks so as to achieve the purposes that the facing brick mortar is full, tightly and firmly connected, and is connected with the floor drain, the reserved pipeline and the hole, processing the bricks into the shape matched with the floor drain, the reserved pipeline and the hole by using an abrasive wheel saw, paving the bricks, and paving the bricks in times among during paving the floor bricks, and paving the floor tiles in a segmented and distributed mode in large-area construction;
s21, seam drawing and correction: laying 2-3 rows, pulling at any time to check the straightness of the seam lattice, immediately finishing if the straightness exceeds the specification, straightening the seam, and compacting by using a rubber hammer;
s22, pointing and wiping: paving the surface layer for 24h to perform seam wiping and jointing, and adopting cement with the same variety, the same strength grade and the same color;
s23, maintenance: and after the brick surface layer is laid for 24 hours, additionally arranging a fence, and watering and maintaining for not less than 7 days.
In the preferred technical solutions of the present invention, in the S5, the vibrating machine vibrates back and forth 2-3 times, and the moving speed is controlled to be 0.8-1.2 meters per minute.
preferable technical solutions of the present invention, in S7, after times of troweling by the troweling machine, the concrete surface is plastered for the next times after water is evaporated, and if the local surface has a concave pond or is not too flat, people are immediately grouted and plastered, and then mechanical plastering is performed.
In the preferable embodiments of the present invention, in S8, the heating temperature is not more than 200 ℃ as the temperature change is concerned at any time during heating.
In the preferred embodiments of the present invention, in S10, the node portions include male and female corners, a wall penetrating pipe, and a water falling port.
As preferable technical solutions of the invention, in the S12, the coating, brushing or spraying is performed from top to bottom during the vertical construction.
As preferable technical schemes, in the S14, when the base layer is greasy, 10% caustic soda water is used for cleaning, and clear water is used for timely cleaning the lye on the base layer.
In the preferred technical solutions of the present invention, in the S18, the cement-sand mixing ratio in the cement mortar is 1: 2.5.
As preferable technical schemes of the invention, in S20, the brick plate is put in a half bucket to be soaked in water for wetting before paving, and is reused when the surface has no clear water after being dried in the air.
In the preferred technical solutions of the present invention, in the S22, the seam width is 8mm or more and the seam is a hook seam, and if the longitudinal and transverse seams are dry-extruded seams or wiping seams smaller than 3 mm.
(III) advantageous effects
Compared with the prior art, the invention provides an flat roof anti-leakage composite waterproof system, which has the following beneficial effects:
1. the elevation is strictly controlled during roof concrete construction, the plate elevation at the water diversion line is properly improved and the slope is found towards the direction of a roof ditch under the condition that the plate bottom elevation is unchanged, meanwhile, the waterproof leveling layer and the protective layer need to be plastered to find the slope towards the direction of the roof ditch before construction, compared with the traditional method of finding the slope by adopting light concrete, the drainage performance is better, the light concrete is easy to crack and store water, construction joints exist between the light concrete and the roof concrete after the roof concrete is finished, and the roof structure is formed for times when finding the slope, so that water is not easy to store.
2. This compound waterproof system of flat roof antiseep adopts the composite waterproof layer that non-curing rubber asphalt waterproofing membrane and self-adhesion coiled material are constituteed, each waterproof material's of full play performance, make two kinds of waterproof material form wholly, the waterproof layer passes through non-curing coating with the structure and forms wholly, non-curing rubber asphalt waterproof coating still can restore the slight crack of structure simultaneously, the phenomenon of scurrying takes place after having avoided the seepage, reduce the later stage seepage maintenance degree of difficulty when improving waterproof performance.
3. This compound waterproof system of flat roofing antiseep, roofing facing brick adopt wet shop technology, and the mortar layer of making level of tiling adopts polymer waterproof mortar and looks for the slope to the ditch direction, and deniers roofing rainwater also can not produce the phenomenon of scurrying through the seepage of face brick brickwork joint into the mortar screed-coat for the mortar screed-coat of facing brick becomes and has concurrently and decides waterproof and drainage performance's construction process.
4. The composite waterproof system for preventing the flat roof from leaking has the advantages that the construction technology can effectively solve the problem of leakage of the flat roof, the composite waterproof system has strong pertinence and high-speed efficiency, can be pushed in a large range, is superior to the traditional construction method in operation, has stronger social benefit, can be pushed to be applied to the flat roof anti-leakage construction in the civil building fields of residential buildings, hotels, real estate building boards, industrial factory buildings and the like, and has the applicability of .
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.
Referring to fig. 1, composite waterproof system for flat roof leakage prevention comprises the following processes:
s1, base layer treatment and cushion layer construction: predetermining a concrete building ground construction process, configuring a proper amount of construction mechanical equipment and labor force, well performing maintenance work on construction machinery, ensuring building ground construction continuity, checking unreasonable drainage parts in an original design drawing, performing deepening design, and determining a water diversion line and a drainage direction;
s2, steel bar hole binding: binding steel bars according to design specifications, arranging cushion blocks below the steel bars, arranging cushion blocks or support horses between double-layer steel bars for supporting, ensuring the accuracy of the positions of the steel bars and the thickness of an upper steel bar protective layer, arranging an anti-cracking steel bar net at positions, where cracks are easy to appear, around reserved holes, wherein the diameter of the reserved holes is more than or equal to 300 mm;
s3, mounting an elevation control point: placing a side form support mounting template on a base layer according to a paying-off position, primarily fixing the position of the side form support mounting template, checking whether the elevation of the top of the template meets the design requirement by using a level gauge, checking whether the template is straight, fixing the template by using a support, setting the highest point and the lowest point on a roof panel by using steel bars according to the paying-off slope, and pulling out a construction line;
s4, concrete pouring and tamping: when concrete is poured, the slump is controlled to be 142mm in 138-fold mode, the concrete is vibrated and compacted by an inserted vibrating rod, a flat vibrator is used for vibrating to enable the surface of the concrete to be compact, no bubbles rise, slurry is uniformly generated, after vibrating, a level gauge is used for detecting the level condition, the deviation part is adjusted, the structural layer concrete is poured and compacted, and the construction line mark is used as a boundary;
s5, performing size lifting and finishing by a finishing machine: the concrete pouring of the terrace adopts a beam type vibrating machine to vibrate, the terrace is placed on channel steel, an operator pulls the traction ropes arranged at the two ends of the vibrating machine back and forth according to the running direction of a vibration motor to vibrate and strike off the concrete, the vibrating machine vibrates back and forth for 2-3 times, and the advancing speed is controlled to be 0.8-1.2 meters per minute;
s6, vacuum water absorption: after the concrete surface is obviously drained, pressing the concrete surface by fingers without finger marks or leaving only slight marks by stepping on the concrete surface, and finishing vacuum suction;
s7, surface layer construction, namely, repeatedly troweling and compacting by adopting a troweling machine, simultaneously carrying out scraping and leveling by moving a 3.5-5.5 m scraping rule into steps, finishing rough troweling after the whole surface layer is trowelled and compacted and primary pulp is adjusted, and finishing the rough troweling work shortly after the initial setting of concrete;
s8, heating the non-cured rubber asphalt waterproof coating: putting a special heater into a rubber asphalt coating iron bucket for heating, so that the rubber asphalt coating is completely melted into a fluid state for later use, and the temperature change is concerned at any moment during heating, wherein the heating temperature is not more than 200 ℃;
s9, base layer cleaning: cleaning up dust and sundries on the surface of the base layer by using tools such as a broom, an iron shovel, a dust remover and the like, and repairing and leveling uneven parts by using cement mortar;
s10, reinforcing the joint, namely reinforcing the joint by adopting non-cured rubber asphalt waterproof paint, wherein the joint comprises a male and female corner, a wall pipe and a water falling port, scraping or rolling brushing is carried out on the joint such as the male and female corner for times on the non-cured rubber asphalt paint by using a scraper, then glass fiber gridding cloth is pasted, then the scraping or rolling brushing is carried out on the rubber asphalt waterproof paint to completely cover the gridding cloth, the brushing width of an additional layer is 300mm, and two sides of a corner are respectively half;
s11, paving the coiled material in a trial mode, namely popping a reference line on a base layer according to the paving direction of the coiled material, naturally spreading the coiled material with root prick resistance, placing the coiled material according to a control line, paving the coiled material in a trial mode, aligning the coiled material with the reference line at any time, carefully correcting the position of the coiled material, and then rolling the coiled material from two ends to the middle or from ends to ends;
s12, construction of the non-cured rubber asphalt waterproof coating: pouring the heated non-cured rubber asphalt waterproof coating on a base layer, uniformly scraping the non-cured rubber asphalt waterproof coating on the base surface by using a scraper, wherein the scraping thickness is uniform, and scraping, brushing or spraying is performed from top to bottom during vertical construction;
s13, paving self-adhesive coiled materials and lapping: coating and scraping the non-cured rubber asphalt waterproof coating, simultaneously pasting the self-adhesive coiled material on the coating, simultaneously lapping the lapping edge of the self-adhesive coiled material with the lapping width of 80mm, and baking the coiled material out of asphalt slurry;
s14, concrete base layer treatment: cleaning up sundries on a concrete base layer, removing ultrahigh floor and wall surface and ultra-flat parts and mortar floor ash by using a chisel, brushing up a floating slurry layer by using a steel wire brush, and in the treatment process, brushing up 10% caustic soda water if the base layer has oil stains, and timely cleaning up the lye on the concrete base layer by using clean water, wherein the protection of a water and electricity pipeline is noticed during the treatment process;
s15, finding the elevation of the surface layer and snapping the line: measuring the surface layer elevation downwards according to a 1m horizontal elevation line on the wall, and bouncing the surface layer elevation on the wall;
s16, sprinkling water for moistening, namely sprinkling water for times uniformly on the ground base layer on the cleaned base layer by using a sprinkling can;
s17, plastering cakes and marking ribs, namely measuring the height from the lower part of the horizontal line of the elastic surface layer to the height of the upper skin of the leveling layer, wherein the distance between the plastering cakes is 1.5m, the upper level of the plastering cake is the height of the cement mortar leveling layer, then plastering the marking ribs from the side of a room , and plastering the marking ribs in the room with the floor drain in a radial manner from the periphery to the direction of the floor drain, and finding the slope, wherein the plastering cakes and the marking ribs use dry and hard mortar, and the thickness is not less than 20 mm;
s18, paving cement mortar among the standard ribs, namely cleaning residual slurry slag of the smeared standard ribs, coating cement mortar bonding layers, coating mortar along with the smeared rib layers, then paving the mixed cement mortar among the standard ribs by using a small flat spade or a wooden trowel according to the elevation of the standard ribs, wherein the cement-sand mixing ratio in the cement mortar is 1:2.5, spreading and tamping the cement mortar by using the wooden trowel, scraping the cement mortar by using a small wooden trowel, flattening the cement mortar by using the wooden trowel, leveling the mortar and the standard ribs, transversely and vertically checking the flatness of the large wooden trowel, checking whether the elevation and the flashing gradient are correct or not, and watering and maintaining after 24 hours;
s19, a brick-flipping control line, namely, when the compressive strength of mortar in a leveling layer reaches 1.2MPa, starting to launch a control line of bricks, determining the width of a gap for tile paving according to design requirements and the specification and size of the bricks, when the design is random and fixed, the width of the tight paving gap is not more than 1mm, the paving width of a virtual gap is 5-10mm, in a room division, arranging the size in the longitudinal direction and the transverse direction, when the size is less than the multiple of the whole bricks, using non-integral bricks at the corners, arranging the row which is transversely parallel to openings as the whole bricks, using the non-integral bricks at the corners, longitudinally arranging the non-integral bricks in the room, arranging the non-integral bricks at the two wall sides, and arranging with the size not less than the side length of the whole bricks, and flipping longitudinal and transverse control lines on the ground and flipping the brick at intervals of control lines according to the determined number of the bricks and;
s20, paving bricks, namely placing the brick plates in a half bucket for soaking and wetting before paving, using the brick plates when the surfaces of the brick plates are free of open water after airing, sprinkling water and wetting on a leveling layer, uniformly coating plain cement paste, smearing bonding mortar upwards on the back surfaces of the bricks during paving, paving the bricks on the brushed cement paste leveling layer when the bricks are paved, wherein the upper edges of the bricks are slightly higher than a horizontal marking line, aligning, straightening and finding, then paving the bricks on a wood-bearing plate by using a rubber hammer, sequentially paving the bricks from inside to outside to ensure that the facing brick mortar is full and tightly and firmly connected, paving the bricks at the joint of the floor drain, the reserved pipeline and the hole, machining the bricks into the shape matched with the floor drain, the reserved pipeline and the hole by using a grinding wheel saw, paving the bricks times among , and constructing the bricks in a large area by adopting segmentation and paving;
s21, seam drawing and correction: laying 2-3 rows, pulling at any time to check the straightness of the seam lattice, immediately finishing if the straightness exceeds the specification, straightening the seam, and compacting by using a rubber hammer;
s22, pointing and wiping: paving the surface layer for 24h to perform seam wiping and jointing, and adopting cement with the same variety, the same strength grade and the same color;
s23, maintenance: and after the brick surface layer is laid for 24 hours, additionally arranging a fence, and watering and maintaining for not less than 7 days.
As a specific technical solution in this embodiment, in S7, after times of troweling, the concrete surface is polished times after water is evaporated, and if the local surface has a concave pond or is not flat, people are immediately grouted and smoothed, and then mechanical finishing is performed.
In this embodiment, the flatness of the surface layer is ensured.
In the specific technical solutions of the present example, in S22, a pointing is used when the seam width is 8mm or more, and if the longitudinal and transverse seams are dry-extruded seams or wiping seams smaller than 3 mm.
In the embodiment, different treatment modes are selected according to the seam widths with different widths, so that the construction quality is ensured.
The working principle and the beneficial effects of the invention are that the elevation of the flat roof anti-leakage composite waterproof system is strictly controlled during roof concrete construction, the elevation of the plate surface at the water diversion line is properly improved and the roof is leveled towards the roof ditch direction under the condition that the elevation of the plate bottom is not changed, meanwhile, the waterproof leveling layer and the protective layer are required to be plastered to be leveled towards the water ditch direction before construction, compared with the traditional method of adopting a light concrete leveling mode, the drainage performance is better, the light concrete is easy to crack and store water, construction of the light concrete after the roof concrete is finished has construction joints, the roof structure is paved with times of performance molding and is not easy to store water, the composite waterproof layer formed by adopting non-cured rubber asphalt waterproof coiled materials and non-cured coiled materials fully exerts the performance of each waterproof material, so that two waterproof materials form integral bodies, the waterproof layer and the structure form integral bodies through the non-cured coating, meanwhile, the non-cured rubber asphalt waterproof coating can also restore the structural fine cracks, the phenomenon of water channeling after leakage is avoided, the waterproof performance is improved, the maintenance difficulty of leakage is reduced, the roof facing brick is paved by adopting a wet process, the mortar paving layer, the mortar brick is paved, the later stage, the waterproof layer is paved with the waterproof mortar facing layer, and the waterproof mortar is paved into the waterproof mortar leveling layer, and the waterproof mortar can not be paved into the water channeling.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1, kind of flat roofing antiseep composite waterproof system, its characterized in that includes following process flow:
s1, base layer treatment and cushion layer construction: predetermining a concrete building ground construction process, configuring a proper amount of construction mechanical equipment and labor force, well performing maintenance work on construction machinery, ensuring building ground construction continuity, checking unreasonable drainage parts in an original design drawing, performing deepening design, and determining a water diversion line and a drainage direction;
s2, steel bar hole binding: binding steel bars according to design specifications, arranging cushion blocks below the steel bars, arranging cushion blocks or support horses between double-layer steel bars for supporting, ensuring the accuracy of the positions of the steel bars and the thickness of an upper steel bar protective layer, arranging an anti-cracking steel bar net at positions, where cracks are easy to appear, around reserved holes, wherein the diameter of the reserved holes is more than or equal to 300 mm;
s3, mounting an elevation control point: placing a side form support mounting template on a base layer according to a paying-off position, primarily fixing the position of the side form support mounting template, checking whether the elevation of the top of the template meets the design requirement by using a level gauge, checking whether the template is straight, fixing the template by using a support, setting the highest point and the lowest point on a roof panel by using steel bars according to the paying-off slope, and pulling out a construction line;
s4, concrete pouring and tamping: when concrete is poured, the slump is controlled to be 142mm in 138-fold mode, the concrete is vibrated and compacted by an inserted vibrating rod, a flat vibrator is used for vibrating to enable the surface of the concrete to be compact, no bubbles rise, slurry is uniformly generated, after vibrating, a level gauge is used for detecting the level condition, the deviation part is adjusted, the structural layer concrete is poured and compacted, and the construction line mark is used as a boundary;
s5, performing size lifting and finishing by a finishing machine: the concrete pouring of the terrace adopts a beam type vibrating machine to vibrate and is placed on channel steel, and an operator pulls the traction ropes arranged at the two ends of the vibrating machine back and forth according to the running direction of a vibrating motor to vibrate and strike off the concrete;
s6, vacuum water absorption: after the concrete surface is obviously drained, pressing the concrete surface by fingers without finger marks or leaving only slight marks by stepping on the concrete surface, and finishing vacuum suction;
s7, surface layer construction, namely, repeatedly troweling and compacting by adopting a troweling machine, simultaneously carrying out scraping and leveling by moving a 3.5-5.5 m scraping rule into steps, finishing rough troweling after the whole surface layer is trowelled and compacted and primary pulp is adjusted, and finishing the rough troweling work shortly after the initial setting of concrete;
s8, heating the non-cured rubber asphalt waterproof coating: putting a special heater into a rubber asphalt coating iron bucket for heating, so that the rubber asphalt coating is completely melted into a fluid state for later use;
s9, base layer cleaning: cleaning up dust and sundries on the surface of the base layer by using tools such as a broom, an iron shovel, a dust remover and the like, and repairing and leveling uneven parts by using cement mortar;
s10, reinforcing the joints, namely reinforcing the joints by adopting non-cured rubber asphalt waterproof paint, scraping or rolling and brushing times of the non-cured rubber asphalt paint on the joints such as internal and external corners by using a scraper, then pasting glass fiber gridding cloth, then completely covering the gridding cloth by scraping or rolling and brushing the rubber asphalt waterproof paint, wherein the brushing width of the additional layer is 300mm, and two sides of each corner are respectively half;
s11, paving the coiled material in a trial mode, namely popping a reference line on a base layer according to the paving direction of the coiled material, naturally spreading the coiled material with root prick resistance, placing the coiled material according to a control line, paving the coiled material in a trial mode, aligning the coiled material with the reference line at any time, carefully correcting the position of the coiled material, and then rolling the coiled material from two ends to the middle or from ends to ends;
s12, construction of the non-cured rubber asphalt waterproof coating: pouring the heated non-cured rubber asphalt waterproof coating on a base layer, and uniformly coating the non-cured rubber asphalt waterproof coating on the base layer by using a scraper, wherein the coating thickness is uniform;
s13, paving self-adhesive coiled materials and lapping: coating and scraping the non-cured rubber asphalt waterproof coating, simultaneously pasting the self-adhesive coiled material on the coating, simultaneously lapping the lapping edge of the self-adhesive coiled material with the lapping width of 80mm, and baking the coiled material out of asphalt slurry;
s14, concrete base layer treatment: cleaning up impurities on the concrete base layer, removing the ultrahigh floor and the ultra-flat wall surface parts and the floor ash of mortar by using a chisel, brushing up the laitance layer by using a steel wire brush, and paying attention to the protection of the hydroelectric pipelines in the treatment process;
s15, finding the elevation of the surface layer and snapping the line: measuring the surface layer elevation downwards according to a 1m horizontal elevation line on the wall, and bouncing the surface layer elevation on the wall;
s16, sprinkling water for moistening, namely sprinkling water for times uniformly on the ground base layer on the cleaned base layer by using a sprinkling can;
s17, plastering cakes and marking ribs, namely measuring the height from the lower part of the horizontal line of the elastic surface layer to the height of the upper skin of the leveling layer, wherein the distance between the plastering cakes is 1.5m, the upper level of the plastering cake is the height of the cement mortar leveling layer, then plastering the marking ribs from the side of a room , and plastering the marking ribs in the room with the floor drain in a radial manner from the periphery to the direction of the floor drain, and finding the slope, wherein the plastering cakes and the marking ribs use dry and hard mortar, and the thickness is not less than 20 mm;
s18, paving cement mortar among the standard ribs, namely cleaning residual slurry slag of the smeared standard ribs, coating cement mortar bonding layers, coating mortar along with the smeared rib layers, then paving the mixed cement mortar among the standard ribs by using a small flat spade or a wooden trowel according to the elevation of the standard ribs, spreading and compacting the cement mortar by using the wooden trowel, scraping the small wooden trowel, flattening the cement mortar by using the wooden trowel, leveling the paved mortar and the standard ribs, checking the flatness of the cement mortar by using a large wooden trowel in the transverse and vertical directions, checking whether the elevation and the flashing gradient are correct or not, and watering and maintaining after 24 hours;
s19, a brick-flipping control line, namely, when the compressive strength of mortar in a leveling layer reaches 1.2MPa, starting to launch a control line of bricks, determining the width of a gap for tile paving according to design requirements and the specification and size of the bricks, when the design is random and fixed, the width of the tight paving gap is not more than 1mm, the paving width of a virtual gap is 5-10mm, in a room division, arranging the size in the longitudinal direction and the transverse direction, when the size is less than the multiple of the whole bricks, using non-integral bricks at the corners, arranging the row which is transversely parallel to openings as the whole bricks, using the non-integral bricks at the corners, longitudinally arranging the non-integral bricks in the room, arranging the non-integral bricks at the two wall sides, and arranging with the size not less than the side length of the whole bricks, and flipping longitudinal and transverse control lines on the ground and flipping the brick at intervals of control lines according to the determined number of the bricks and;
s20, paving bricks, namely sprinkling water on a leveling layer for wetting, uniformly brushing plain cement paste, smearing bonding mortar upwards on the back of each brick during paving, paving the bricks on the leveling layer made of the cement paste with the brushed level, enabling the upper edges of the bricks to be slightly higher than horizontal marking lines, aligning, straightening and finding directions, then paving the bricks with a wood-padded plate, compacting the bricks by using a rubber hammer, sequentially retreating from inside to outside to pave the bricks so as to achieve the purposes that the facing brick mortar is full, tightly and firmly connected, and is connected with the floor drain, the reserved pipeline and the hole, processing the bricks into the shape matched with the floor drain, the reserved pipeline and the hole by using an abrasive wheel saw, paving the bricks, and paving the bricks in times among during paving the floor bricks, and paving the floor tiles in a segmented and distributed mode in large-area construction;
s21, seam drawing and correction: laying 2-3 rows, pulling at any time to check the straightness of the seam lattice, immediately finishing if the straightness exceeds the specification, straightening the seam, and compacting by using a rubber hammer;
s22, pointing and wiping: paving the surface layer for 24h to perform seam wiping and jointing, and adopting cement with the same variety, the same strength grade and the same color;
s23, maintenance: and after the brick surface layer is laid for 24 hours, additionally arranging a fence, and watering and maintaining for not less than 7 days.
2. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S5, the vibrating machine vibrates back and forth 2-3 times, and the running speed is controlled at 0.8-1.2 m/min.
3. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S7, after each troweling passes, the troweling machine performs the next times of troweling after the water on the concrete surface is evaporated, and if the local surface has a concave pool or is not flat, the troweling is performed by people first, and then the mechanical troweling is performed.
4. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S8, the temperature changes are concerned at any moment when heating, and the heating temperature should not exceed 200 ℃.
5. The composite waterproof system for flat roof antiseep according to claim 1, wherein in S10, the node parts comprise male and female corners, wall penetrating pipes and water falling ports.
6. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S12, the construction of the vertical surface is performed by scraping, brushing or spraying from top to bottom.
7. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S14, when the concrete substrate is greasy, 10% caustic soda is used for cleaning, and the lye on the concrete substrate is cleaned with clean water in time.
8. The composite waterproof system for flat roof anti-seep according to claim 1, wherein in S18, the cement-sand proportion of the cement mortar is 1: 2.5.
9. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S20, the tile blocks are placed in a half bucket for soaking and wetting before paving, and the tile blocks are reused when the surface is free from open water after being dried in the air.
10. The composite waterproof system for flat roof leakage prevention according to claim 1, wherein in S22, the width of the seam is 8mm or more, and the longitudinal and transverse seams are dry extruded seams or wiping seams smaller than 3 mm.
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| CN113585637A (en) * | 2021-07-24 | 2021-11-02 | 南京坤佳防水防腐保温工程有限公司 | Construction method of waterproof heat-insulation sloping roof |
| CN114876075A (en) * | 2022-06-22 | 2022-08-09 | 北京崇建工程有限公司 | Water seepage prevention construction method for garage top plate |
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