CN114278017A - Waterproof cast-in-place protective layer anti-cracking structure and construction method thereof - Google Patents
Waterproof cast-in-place protective layer anti-cracking structure and construction method thereof Download PDFInfo
- Publication number
- CN114278017A CN114278017A CN202111626955.4A CN202111626955A CN114278017A CN 114278017 A CN114278017 A CN 114278017A CN 202111626955 A CN202111626955 A CN 202111626955A CN 114278017 A CN114278017 A CN 114278017A
- Authority
- CN
- China
- Prior art keywords
- protective layer
- concrete
- layer
- construction
- waterproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011241 protective layer Substances 0.000 title claims abstract description 147
- 238000010276 construction Methods 0.000 title claims abstract description 63
- 238000005336 cracking Methods 0.000 title claims abstract description 42
- 239000004567 concrete Substances 0.000 claims abstract description 99
- 239000010410 layer Substances 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims description 46
- 238000005520 cutting process Methods 0.000 claims description 19
- 239000010426 asphalt Substances 0.000 claims description 17
- 230000008602 contraction Effects 0.000 claims description 16
- 239000004575 stone Substances 0.000 claims description 15
- 238000013461 design Methods 0.000 claims description 11
- 239000011487 hemp Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000012795 verification Methods 0.000 claims description 8
- 244000025254 Cannabis sativa Species 0.000 claims description 7
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 7
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 7
- 235000009120 camo Nutrition 0.000 claims description 7
- 235000005607 chanvre indien Nutrition 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000001953 sensory effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000035882 stress Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000002674 ointment Substances 0.000 description 6
- 230000002411 adverse Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention discloses a waterproof cast-in-place protective layer anti-cracking structure and a construction method thereof, wherein the waterproof cast-in-place protective layer anti-cracking structure comprises a bottom protective layer (2) arranged on a waterproof layer on the top of a floor surface main body (1), an anti-cracking layer (3) used for increasing tensile strength and a top protective layer (4), wherein the bottom protective layer (2), the anti-cracking layer (3) and the top protective layer (4) are sequentially arranged from bottom to top to form the waterproof cast-in-place protective layer anti-cracking structure. The method has the advantages of simple operation, safe construction, high speed, high efficiency and low cost, effectively avoids the repair of concrete cracks in the later period, improves the construction quality and practically prolongs the service life of water resistance.
Description
Technical Field
The invention relates to a waterproof protective layer anti-cracking structure and a construction method thereof, in particular to a waterproof cast-in-place protective layer anti-cracking structure and a construction method thereof, which are mainly used in the engineering of waterproof cast-in-place protective layers of roofs, basement roofs and basement floors and belong to the technical field of building construction.
Background
Generally, after the waterproof construction is finished in the construction of the building engineering, a waterproof protective layer is required to be constructed so as to prevent the waterproof layer from being damaged by machinery and slow down the aging speed of the waterproof layer under natural conditions such as wind, sunshine, rainfall and the like, so that the service life of the waterproof layer is prolonged to the maximum extent, and further, better service performance is provided for the building engineering.
The waterproof protective layer is designed by considering 30-50 mm of cast-in-place fine aggregate concrete, and the cracking condition of the waterproof protective layer can not be effectively solved although the protective layer is subjected to parting treatment according to design requirements in the traditional construction.
On one hand, the problem is that the on-site parting adopts the later cutting to form a false seam (the cutting depth is smaller than the thickness of the protective layer), and the stress weak point formed by the false seam can induce and release the stress generated when the cast-in-place protective layer shrinks, so that the cracking of other positions is avoided, but the mode can not solve the problem of concrete expansion and the cracking of the protective layer caused by no expansion space.
On the other hand, the problem that the position of on-site parting is random, so that the position with concentrated stress of the protective layer cannot be released in time;
on the other hand, the crack breaking time is too late, the internal stress of the protective layer after the concrete is finally set is gradually increased, and the crack of the concrete protective layer before the crack breaking is caused by the too late crack breaking time;
on the other hand, the protective layer is partially designed, and although the reinforcement design is carried out, the protective layer is thinner, the wrapping force of concrete on the reinforcement is weaker, so that the purpose of crack resistance cannot be achieved after the reinforcement is added, but net-shaped cracks are formed at the positions of the reinforcing steel meshes, the thickness of the concrete is increased, the cost is increased, the self weight of the structure is increased, and the engineering cost input is increased.
Meanwhile, although the protective layer is constructed, the preset purpose is not achieved, and the main defects of the existing protection in the construction completion are as follows:
(1) the middle part of the protective layer presents gridded irregular cracks, radioactive cracks are generated at the internal and external corners of the protective layer, the positions of the cracks are waterproof, and the waterproof performance is further caused by long-term rain, wind and sunshine, so that the waterproof failure is caused, and the use of the structure is influenced;
(2) one purpose of the waterproof protective layer is in order to protect waterproof extension waterproof life, and another purpose is in order to drain the water on surface as early as possible, through seeking the slope drainage to the outlet position in traditional construction, and the construction degree of difficulty is big, has the phenomenon of surface ponding after the construction of most protective layers is accomplished.
The evaluation project is more likely to be a negative item, and the project problem is a technical problem of headache of the majority of engineers at one time.
Therefore, the key point for solving the technical problems is to develop a waterproof cast-in-place protective layer anti-cracking structure with stronger practicability and higher working reliability and a construction method thereof.
Disclosure of Invention
Aiming at various defects and shortcomings in the background technology, the invention is improved and innovated, and aims to provide a novel glass fiber sheet net which is simple in structure and reasonable in design, and greatly improves the crack resistance of concrete by additionally arranging a glass fiber sheet net on the middle upper part of fine aggregate concrete; the mesh size of the glass fiber net is larger than that of the coarse aggregate of the fine aggregate concrete, so that the fine aggregate concrete is prevented from being layered due to the arrangement of the glass fiber net; the expansion joint and the contraction joint are arranged, so that stress generated in the concrete protective layer is reasonably released, and the purpose of anti-releasing combination is achieved; hemp threads and asphalt ointment are placed in the contraction joint, so that the corrosion of the crack generated at the contraction joint position by rainwater is effectively avoided; through setting up the escape canal, the slope is being looked for to the escape canal in to the protective layer, and the escape canal is inside to be looked for the slope carrying out the secondary, has reduced the construction degree of difficulty by a wide margin, has effectively avoided the unofficient problem of roofing drainage.
Another purpose of the invention is that the fine aggregate concrete is paved in two layers, after the lower layer of fine aggregate concrete is initially leveled, the glass fiber net is paved and adhered manually, the glass fiber net is temporarily fixed by cement paste in the fine aggregate concrete to avoid displacement, and the upper layer of fine aggregate concrete is poured in time after paving and adhering are completed, so that the construction is convenient and fast, and compared with the traditional pouring process, only one manual work is needed; the expansion joint is arranged at the intersection of the protective layer and the structure, and the contraction joint is arranged on the protective layer in the middle, so that stress generated in the protective layer is reasonably released, and the protective layer is prevented from cracking; the method effectively avoids adverse effects caused by cracking of the protective layer, and lays a foundation for improving the use experience of owners; by arranging the drainage ditch, a disordered drainage system is planned in order, organized drainage is realized, the drainage efficiency is greatly improved, and water accumulation on the protective layer is avoided; the method has the advantages of being simple in operation, safe in construction, high in speed, high in efficiency and low in cost, effectively avoids repairing concrete cracks in the later period, improves construction quality, and practically prolongs the service life of water resistance.
In order to solve the problems and achieve the purpose, the invention provides a waterproof cast-in-place protective layer anti-cracking structure and a construction method thereof, which are realized by adopting the following design structure and the following technical scheme:
the utility model provides a structure of ftractureing is prevented to waterproof cast-in-place protective layer, is including setting up bottom protective layer (2) on floor face main part (1) top waterproof layer and be used for increasing tensile strength prevent cracking layer (3) and top layer inoxidizing coating (4), bottom protective layer (2) with prevent cracking layer (3) and top layer inoxidizing coating (4) are supreme according to the preface setting down, constitute structure of ftractureing is prevented to waterproof cast-in-place protective layer.
Preferably, the bottom protective layer (2) is formed by pouring cast-in-place fine stone concrete.
Preferably, the anti-cracking layer (3) is a glass fiber net, the glass fiber nets are sequentially laid between the bottom protection layer (2) and the top protection layer (4) in rows, and two adjacent glass fiber nets are overlapped.
Preferably, the grid spacing of the anti-cracking layers (3) is 10mm multiplied by 10mm, and the spacing between the anti-cracking layers (3) for increasing the tensile strength is 100 mm; the top protective layer (4) is a surface protective layer formed by pouring fine stone concrete.
Preferably, a plurality of drainage ditches (5) are also arranged on the anti-cracking structure of the waterproof cast-in-situ protective layer, and drainage pipes (6) matched with the drainage ditches to complete the work are arranged at the water outlets of the drainage ditches (5),
the drainage ditch (5) are distributed in the middle of the floor main body (1), around the periphery or at one side edge or in the middle of the floor main body (1), around the periphery or at one side edge, and the drainage ditch (5) is slightly inclined forwards from the front to the back.
More preferably, the construction method of the anti-cracking structure of the waterproof cast-in-place protective layer comprises the following construction steps:
A. construction preparation, namely completing concealment and acceptance inspection work in all construction procedures before the construction of the protective layer according to a design drawing and a construction standard specification;
B. constructing expansion joints, wherein the expansion joints are arranged at the joint of the protective layer and the floor slab structure and at the periphery of the drainage ditch;
C. constructing an elevation control point by adopting mortar with the same strength as the concrete of the protective layer, wherein the height of the control point is the same as the thickness of the designed protective layer; the protective layers at the two sides of the drainage ditch are used for seeking slopes in the drainage ditch, and the bottom of the drainage ditch is used for seeking slopes towards the position of the downpipe so as to smoothly drain water;
D. and pouring a bottom protective layer, wherein the bottom protective layer is 2/3 fine stone concrete with the designed protective layer thickness.
E. Paving glass fiber nets, after pouring bottom layer concrete, performing primary leveling by manpower, paving a layer of glass fiber nets on the concrete, and connecting the glass fiber nets in a lap joint mode; purchasing and warehousing the glass fiber web before construction, checking and accepting the glass fiber web before warehousing, prohibiting warehousing if the glass fiber web is unqualified in check and accepting, and purchasing again until the glass fiber web is qualified in check and accepting, and allowing warehousing for standby;
F. pouring a surface layer protective layer, namely pouring a top layer protective layer (4), pouring 1/3-thick protective layer fine aggregate concrete of the upper layer before the glass fiber net is paved and the initial setting of the lower layer fine aggregate concrete, and performing face folding and leveling;
J. concrete curing, namely curing the fine aggregate concrete, wherein the curing time is generally 7-14 days; the curing is generally performed by watering or covering;
H. cutting a contraction joint, and timely cutting a parting joint after the strength of concrete reaches 1.2Mpa and no footprint exists;
I. filling the asphalt factice into the seams, and filling the asphalt factice after the seams are cleaned;
J. and (4) checking and accepting, namely checking and accepting the sensory quality and the entity quality of the protective layer after construction is finished.
Preferably, in the construction preparation, the concealing project before the protective layer is constructed specifically further includes:
A1. waterproof detail processing and water closing test, the arrangement position of a water outlet and related reservation embedding.
Preferably, in the construction expansion joint, the construction expansion joint further comprises:
B1. constructing an expansion joint at the joint of the protective layer and the floor slab structure by sticking an expansion sealing strip;
B2. and the expansion joint at the periphery of the drainage ditch adopts a permanent expansion joint constructed by mortar.
Preferably, in the pouring of the bottom protection layer, the thickness of a commonly designed waterproof protection layer is 30-80 mm, and fine aggregate concrete with the thickness of the protection layer 2/3 is poured firstly; before concrete mixing, raw material submission and mix proportion verification are carried out, the concrete mixing can be carried out only when the raw material submission and mix proportion verification are qualified, and if the raw material submission and mix proportion verification are not qualified, the raw material purchasing and mix proportion design are carried out again, and submission verification is carried out again; and (3) checking and accepting the construction performance of the mixed concrete when the mixed concrete enters a field, pouring the mixed concrete after the mixed concrete is qualified, and returning the mixed concrete when the mixed concrete is unqualified.
Preferably, in the shrinkage joint cutting, after the concrete protective layer is poured, a mechanical cooperation manual face is adopted for face shrinkage, after the concrete is finally set, a cutting machine is adopted for cutting a joint according to a construction scheme determined in advance, the width of the joint is preferably 20mm, the depth of the joint is preferably 2/3 of the thickness of the protective layer, the glass fiber net is cut off, and the waterproof layer is prevented from being damaged.
In the asphalt factice crack pouring, the crack is timely cleaned after the cutting shrinkage crack is completed, hemp threads (7) are filled in the crack, and asphalt factice (8) is simultaneously poured in the crack, wherein the asphalt factice (8) is slightly lower than a surface layer protective layer, so that the pollution to the surface layer protective layer is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1. the glass slide net is additionally arranged on the middle upper part of the fine aggregate concrete, so that the anti-cracking capacity of the concrete is greatly improved; the mesh size of the glass fiber net is larger than that of the coarse aggregate of the fine aggregate concrete, so that the fine aggregate concrete is prevented from being layered due to the arrangement of the glass fiber net; the expansion joint and the contraction joint are arranged, so that stress generated in the concrete protective layer is reasonably released, and the purpose of anti-releasing combination is achieved; hemp threads and asphalt ointment are placed in the contraction joint, so that the corrosion of the crack generated at the contraction joint position by rainwater is effectively avoided; by arranging the drainage ditch, the protective layer finds a slope in the drainage ditch, and secondary slope finding is carried out in the drainage ditch, so that the construction difficulty is greatly reduced, and the problem of unsmooth drainage of a roof is effectively avoided;
2. according to the invention, the fine stone concrete is paved in two layers, after the lower layer of fine stone concrete is initially leveled, the glass fiber net is paved and pasted manually, the glass fiber net is temporarily fixed by cement paste in the fine stone concrete to avoid displacement, and the upper layer of fine stone concrete is poured in time after paving and pasting, so that the construction is convenient and fast, and compared with the traditional pouring process, only one manual work is needed; the expansion joint is arranged at the intersection of the protective layer and the structure, and the contraction joint is arranged on the protective layer in the middle, so that stress generated in the protective layer is reasonably released, and the protective layer is prevented from cracking; the method effectively avoids adverse effects caused by cracking of the protective layer, and lays a foundation for improving the use experience of owners; by arranging the drainage ditch, a disordered drainage system is planned in order, organized drainage is realized, the drainage efficiency is greatly improved, and water accumulation on the protective layer is avoided;
3. the construction method solves the problem of cracking of the cast-in-place concrete surface layer, has the advantages of simple operation, safe construction, high speed, high efficiency and low cost, effectively avoids the repair of concrete cracks in the later period, improves the construction quality and practically prolongs the service life of water resistance;
4. the construction method provided by the invention is convenient to operate, simple to construct and good in economic effect, and engineering practices prove that the technical method can effectively solve the problem of cracking of the waterproof cast-in-place protective layer.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is one of the overall structural schematic diagrams of the present invention;
FIG. 2 is a second schematic view of the overall structure of the present invention;
FIG. 3 is a third schematic view of the overall structure of the present invention;
FIG. 4 is a fourth schematic view of the overall structure of the present invention;
FIG. 5 is a fifth schematic view of the overall structure of the present invention;
FIG. 6 is a schematic view of a portion of the position A shown in FIG. 3;
FIG. 7 is a schematic view showing the connection between the drainage ditch (5) and the drainage pipe (6) according to the present invention;
FIG. 8 is a schematic view of the forming structure of the present invention;
wherein, the reference numbers in the figures: 1-floor surface main body (1);
2-bottom protective layer (2);
3-anti-cracking layer (3);
4-top protective layer (4);
5-a drainage ditch (5);
6-a drain pipe (6);
7-hemp thread (7);
8-asphalt ointment (8).
Detailed Description
In order to make the technical means, the inventive features, the achievement purposes and the effects of the present invention easy to understand, the technical solutions of the present invention are further described in detail with reference to the drawings and the detailed description below, and it is to be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Taking the construction of a cast-in-place protective layer of the self-adhesive waterproof roll as an example, the cast-in-place protective layer is a fine stone concrete protective layer with the thickness of 50mm, the strength of concrete is C20, the drainage gradient of the designed roof is 2%, and the drainage gradient in the drainage ditch is 1%. The technical scheme in the embodiment of the invention is clearly and completely described. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A. According to design drawings and construction standard specifications, all construction procedures before the construction of the protective layer complete the concealment and acceptance work;
A1. planning a drainage ditch according to the position of the downpipe, and installing elevation control points on the waterproof layer by adopting a level meter according to 2% of slope, wherein the heights of the elevation control points are the same according to the thickness of a waterproof protective layer required by design, namely 50 mm;
specifically, the protective layers on the two sides of the drainage ditch find 2% of slopes in the drainage ditch, and the bottom of the drainage ditch finds 1% of slopes towards the position of the downpipe, so that water can be smoothly drained.
B. Expansion gaps are arranged at the joint of the protective layer and the structure and at the periphery of the drainage ditch;
B1. an expansion sealing strip is stuck at the joint of the protective layer and the structure;
specifically, an elastic sealing rubber strip is adopted, the thickness is 5mm, and the width is as thick as that of a cast-in-place concrete protective layer;
B2. the periphery of the drainage ditch is provided with permanent dividing seams made of mortar;
specifically, the strength of the adopted mortar is M20, and the height of the division bar is as thick as that of the cast-in-place concrete protective layer.
C. Pouring a waterproof concrete protective layer;
C1. designing the thickness of a commonly designed waterproof protective layer to be 50mm, and pouring fine stone concrete with the thickness of 30 mm;
c2.30mm fine stone concrete protective layer is paved and leveled, and then a layer of glass fiber net is fully paved;
specifically, the grid spacing of the glass fiber net is 10mm multiplied by 10mm, and the spacing between the wave fiber nets is 100 mm;
C3. after the glass fiber net is paved, pouring the fine stone concrete with the thickness of 20mm on the upper layer before the initial setting of the fine stone concrete on the lower layer, and performing face-closing leveling;
D. construction of contraction joints;
D1. when the strength of the concrete reaches 1.2Mpa and no footprint exists, timely cutting the parting seams;
D2. after the cutting of the cutting seams is finished, pouring asphalt factice after the cleaning of the seams is finished;
specifically, asphalt hemp threads are put into the dividing seams.
E. And (5) curing the fine aggregate concrete for not less than 7 days.
In the whole implementation operation process, the grid spacing of the glass fiber net is slightly larger than the diameter of the coarse aggregate of the fine aggregate concrete, the glass fiber net is arranged at the middle upper part of the fine aggregate concrete, and the connection mode among the glass fiber nets adopts lap joint;
furthermore, a drainage ditch is arranged at a proper position of the protective layer, and 2% of slopes are arranged in the drainage ditch on the protective layers at two sides of the drainage ditch; 1% of slopes are arranged in the drainage ditch, and the lowest point is a drainage pipe;
furthermore, before the protective layer is poured, a weather-proof sealing strip is adopted and is adhered to the edge of the structure to be used as an expansion joint;
and further, after the concrete protective layer is poured, manually folding the surface by adopting mechanical cooperation, and after the concrete is finally set, cutting the joint by adopting a cutting machine according to a construction scheme determined in advance, wherein the width of the cut joint is preferably 20mm, the depth of the cut joint is preferably 2/3 of the thickness of the protective layer, the glass fiber net is cut off, and the waterproof layer is prevented from being damaged.
Furthermore, after the contraction joint is cut, the joint is cleaned in time, hemp threads are filled in the joint, and asphalt ointment is filled in the joint, wherein the ointment is slightly lower than the protective layer surface, so that the pollution to the protective layer is avoided;
still further, a specially-assigned person should be arranged for curing after the pouring of the protective layer is completed, the curing time should not be less than 7 days, and the surface of the concrete should be ensured to be wet during the curing period.
This structure is prevented ftractureing by waterproof cast-in-place protective layer sets up expansion joint and shrinkage joint through establishing glass fiber net, combination, has realized the anti combination of putting between the structure is inside, has effectively avoided the problem of concrete protective layer ftractureing.
In summary, the present invention has the following advantages in the specific embodiments:
the structure of the invention has the effective effects that:
the crack resistance of the concrete is greatly improved by additionally arranging the glass slide net on the middle upper part of the fine aggregate concrete; the mesh size of the glass fiber net is larger than that of the coarse aggregate of the fine aggregate concrete, so that the fine aggregate concrete is prevented from being layered due to the arrangement of the glass fiber net; the expansion joint and the contraction joint are arranged, so that stress generated in the concrete protective layer is reasonably released, and the purpose of anti-releasing combination is achieved; hemp threads and asphalt ointment are placed in the contraction joint, so that the corrosion of the crack generated at the contraction joint position by rainwater is effectively avoided; through setting up the escape canal, the slope is being looked for to the escape canal in to the protective layer, and the escape canal is inside to be looked for the slope carrying out the secondary, has reduced the construction degree of difficulty by a wide margin, has effectively avoided the unofficient problem of roofing drainage.
The structure reasonably induces stress release according to the guiding thought of the combination of resistance and release, increases the resistance of the protective layer and achieves the effect of avoiding the cracking of the cast-in-place protective layer.
The method has the effective effects that:
according to the method, the fine aggregate concrete is paved in two layers, after the lower layer of fine aggregate concrete is initially leveled, the glass fiber net is paved and pasted manually, the glass fiber net is temporarily fixed by cement paste in the fine aggregate concrete to avoid displacement, and the upper layer of fine aggregate concrete is poured in time after paving and pasting are completed, so that the construction is convenient and fast, and compared with the traditional pouring process, only one manual work is needed; the expansion joint is arranged at the intersection of the protective layer and the structure, and the contraction joint is arranged on the protective layer in the middle, so that stress generated in the protective layer is reasonably released, and the protective layer is prevented from cracking; the method effectively avoids adverse effects caused by cracking of the protective layer, and lays a foundation for improving the use experience of owners; through setting up the escape canal, carry out orderly planning with mixed and disorderly drainage system, realized organizing the drainage, promoted drainage efficiency by a wide margin, avoided ponding on the protective layer.
Finally, although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made thereto within the knowledge of those skilled in the art.
Claims (10)
1. The utility model provides a structure of ftractureing is prevented to waterproof cast-in-place protective layer, includes bottom protective layer (2) that set up on floor face main part (1) top waterproof layer and is used for increasing tensile strength prevent cracking layer (3) and top layer inoxidizing coating (4), its characterized in that, bottom protective layer (2) with prevent cracking layer (3) and top layer inoxidizing coating (4) are from supreme setting according to the preface down, constitute structure of ftractureing is prevented to waterproof cast-in-place protective layer.
2. The structure of claim 1, wherein the bottom protective layer (2) is cast from cast-in-place fine-stone concrete.
3. The waterproof cast-in-place protective layer anti-cracking structure according to claim 1, wherein the anti-cracking layer (3) is a glass fiber net, the glass fiber nets are sequentially laid between the bottom protective layer (2) and the top protective layer (4) in rows, and two adjacent glass fiber nets are overlapped.
4. The structure of claim 3, wherein the lattice spacing of the anti-cracking layer (3) is 10mm x 10mm, and the spacing between the anti-cracking layers (3) for increasing the tensile strength is 100 mm; the top protective layer (4) is a surface protective layer formed by pouring fine stone concrete.
5. The structure of claim 1, further comprising a plurality of drainage ditches (5), wherein the drainage ditches (5) are disposed at the outlet of the drainage ditches (5), and a drainage pipe (6) is disposed at the outlet of each drainage ditch, wherein,
the drainage ditch (5) are distributed in the middle of the floor main body (1), around the periphery or at one side edge or in the middle of the floor main body (1), around the periphery or at one side edge, and the drainage ditch (5) is slightly inclined forwards from the front to the back.
6. The construction method of the waterproof cast-in-place protective layer anti-cracking structure as claimed in claim 1, characterized by comprising the following construction steps:
A. construction preparation, namely completing concealment and acceptance inspection work in all construction procedures before the construction of the protective layer according to a design drawing and a construction standard specification;
B. constructing expansion joints, wherein the expansion joints are arranged at the joint of the protective layer and the floor slab structure and at the periphery of the drainage ditch;
C. constructing an elevation control point by adopting mortar with the same strength as the concrete of the protective layer, wherein the height of the control point is the same as the thickness of the designed protective layer; the protective layers at the two sides of the drainage ditch are used for seeking slopes in the drainage ditch, and the bottom of the drainage ditch is used for seeking slopes towards the position of the downpipe so as to smoothly drain water;
D. and pouring a bottom protective layer, wherein the bottom protective layer is 2/3 fine stone concrete with the designed protective layer thickness.
E. Paving glass fiber nets, after pouring bottom layer concrete, performing primary leveling by manpower, paving a layer of glass fiber nets on the concrete, and connecting the glass fiber nets in a lap joint mode; purchasing and warehousing the glass fiber web before construction, checking and accepting the glass fiber web before warehousing, prohibiting warehousing if the glass fiber web is unqualified in check and accepting, and purchasing again until the glass fiber web is qualified in check and accepting, and allowing warehousing for standby;
F. pouring a surface layer protective layer, namely pouring a top layer protective layer (4), pouring 1/3-thick protective layer fine aggregate concrete of the upper layer before the glass fiber net is paved and the initial setting of the lower layer fine aggregate concrete, and performing face folding and leveling;
J. concrete curing, namely curing the fine aggregate concrete, wherein the curing time is generally 7-14 days; the curing is generally performed by watering or covering;
H. cutting a contraction joint, and timely cutting a parting joint after the strength of concrete reaches 1.2Mpa and no footprint exists;
I. filling the asphalt factice into the seams, and filling the asphalt factice after the seams are cleaned;
J. and (4) checking and accepting, namely checking and accepting the sensory quality and the entity quality of the protective layer after construction is finished.
7. The construction method of the waterproof cast-in-place protective layer anti-cracking structure according to claim 6, wherein in the construction preparation, the concealed work before the protective layer construction specifically comprises the following steps:
A1. waterproof detail processing and water closing test, the arrangement position of a water outlet and related reservation embedding.
8. The construction method of the waterproof cast-in-place protective layer anti-cracking structure as claimed in claim 6, wherein the construction expansion joint further comprises:
B1. constructing an expansion joint at the joint of the protective layer and the floor slab structure by sticking an expansion sealing strip;
B2. and the expansion joint at the periphery of the drainage ditch adopts a permanent expansion joint constructed by mortar.
9. The construction method of the waterproof cast-in-place protective layer anti-cracking structure according to claim 6, wherein in the pouring of the bottom protective layer, the thickness of the waterproof protective layer which is designed to be a common design is 30-80 mm, and fine aggregate concrete with the thickness of the protective layer 2/3 is poured firstly; before concrete mixing, raw material submission and mix proportion verification are carried out, the concrete mixing can be carried out only when the raw material submission and mix proportion verification are qualified, and if the raw material submission and mix proportion verification are not qualified, the raw material purchasing and mix proportion design are carried out again, and submission verification is carried out again; and (3) checking and accepting the construction performance of the mixed concrete when the mixed concrete enters a field, pouring the mixed concrete after the mixed concrete is qualified, and returning the mixed concrete when the mixed concrete is unqualified.
10. The method for constructing a crack-resistant structure of a waterproof cast-in-place protective layer as claimed in claim 6, wherein the step of cutting the shrinkage joint comprises manually collecting the concrete protective layer by mechanical cooperation after the concrete protective layer is poured, cutting the shrinkage joint by a cutting machine according to a predetermined construction scheme after the concrete is finally set, wherein the width of the cut is preferably 20mm, the depth of the cut is preferably 2/3 of the thickness of the protective layer, and the glass fiber net is cut off and the waterproof layer is prevented from being damaged.
In the asphalt factice crack pouring, the crack is timely cleaned after the cutting shrinkage crack is completed, hemp threads (7) are filled in the crack, and asphalt factice (8) is simultaneously poured in the crack, wherein the asphalt factice (8) is slightly lower than a surface layer protective layer, so that the pollution to the surface layer protective layer is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626955.4A CN114278017A (en) | 2021-12-28 | 2021-12-28 | Waterproof cast-in-place protective layer anti-cracking structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626955.4A CN114278017A (en) | 2021-12-28 | 2021-12-28 | Waterproof cast-in-place protective layer anti-cracking structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114278017A true CN114278017A (en) | 2022-04-05 |
Family
ID=80877016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111626955.4A Pending CN114278017A (en) | 2021-12-28 | 2021-12-28 | Waterproof cast-in-place protective layer anti-cracking structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114278017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934637A (en) * | 2022-05-31 | 2022-08-23 | 中国十七冶集团有限公司 | Construction method of large-area accessible roof waterproof protection surface layer |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158206A (en) * | 2007-11-06 | 2008-04-09 | 四川大学 | Storied building top surface crack preventing method |
| CN201144486Y (en) * | 2007-12-28 | 2008-11-05 | 常州易能科技有限公司 | Light waterproof heat insulation roof |
| CN103321422A (en) * | 2013-07-05 | 2013-09-25 | 十九冶成都建设有限公司 | Anti-crack method for concrete protecting layer |
| CN204626473U (en) * | 2015-05-18 | 2015-09-09 | 丛凡淇 | Basement roof waterproof construction |
| CN106013623A (en) * | 2016-06-08 | 2016-10-12 | 中煤第七十二工程有限公司 | Construction method of inverted roof |
| CN206591742U (en) * | 2016-12-09 | 2017-10-27 | 中国一冶集团有限公司 | A kind of planted roof drainage system based on siphonic system |
| CN206752794U (en) * | 2017-05-23 | 2017-12-15 | 刘嘉文 | A kind of roof floor construction |
| CN110284665A (en) * | 2019-07-02 | 2019-09-27 | 中国建筑第七工程局有限公司 | Waterproof and insulation integrated roofing construction engineering method |
| CN210658985U (en) * | 2019-09-11 | 2020-06-02 | 深圳市宝晟建设集团有限公司 | Heat-insulation and waterproof structure for building surface |
| CN112554450A (en) * | 2020-12-26 | 2021-03-26 | 中冶天工集团天津有限公司 | Heat-insulating roof structure with high waterproof performance and construction method thereof |
| CN214062161U (en) * | 2020-09-30 | 2021-08-27 | 山东科化高分子科技股份有限公司 | Building waterproof protection board |
| CN214884939U (en) * | 2021-01-14 | 2021-11-26 | 桂林建安建设集团有限公司 | Heat preservation roofing reentrant corner flashing structure |
| CN215106657U (en) * | 2021-01-18 | 2021-12-10 | 三智胜祥集团有限公司 | Assembled roof slope-finding heat-insulation integrated plate |
| CN114658222A (en) * | 2022-04-28 | 2022-06-24 | 山西四建集团有限公司 | Anti-cracking bin casting method for roof waterproof protective layer |
| CN216810548U (en) * | 2021-12-28 | 2022-06-24 | 云南建投第二建设有限公司 | Simple floor slab for roof building |
-
2021
- 2021-12-28 CN CN202111626955.4A patent/CN114278017A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158206A (en) * | 2007-11-06 | 2008-04-09 | 四川大学 | Storied building top surface crack preventing method |
| CN201144486Y (en) * | 2007-12-28 | 2008-11-05 | 常州易能科技有限公司 | Light waterproof heat insulation roof |
| CN103321422A (en) * | 2013-07-05 | 2013-09-25 | 十九冶成都建设有限公司 | Anti-crack method for concrete protecting layer |
| CN204626473U (en) * | 2015-05-18 | 2015-09-09 | 丛凡淇 | Basement roof waterproof construction |
| CN106013623A (en) * | 2016-06-08 | 2016-10-12 | 中煤第七十二工程有限公司 | Construction method of inverted roof |
| CN206591742U (en) * | 2016-12-09 | 2017-10-27 | 中国一冶集团有限公司 | A kind of planted roof drainage system based on siphonic system |
| CN206752794U (en) * | 2017-05-23 | 2017-12-15 | 刘嘉文 | A kind of roof floor construction |
| CN110284665A (en) * | 2019-07-02 | 2019-09-27 | 中国建筑第七工程局有限公司 | Waterproof and insulation integrated roofing construction engineering method |
| CN210658985U (en) * | 2019-09-11 | 2020-06-02 | 深圳市宝晟建设集团有限公司 | Heat-insulation and waterproof structure for building surface |
| CN214062161U (en) * | 2020-09-30 | 2021-08-27 | 山东科化高分子科技股份有限公司 | Building waterproof protection board |
| CN112554450A (en) * | 2020-12-26 | 2021-03-26 | 中冶天工集团天津有限公司 | Heat-insulating roof structure with high waterproof performance and construction method thereof |
| CN214884939U (en) * | 2021-01-14 | 2021-11-26 | 桂林建安建设集团有限公司 | Heat preservation roofing reentrant corner flashing structure |
| CN215106657U (en) * | 2021-01-18 | 2021-12-10 | 三智胜祥集团有限公司 | Assembled roof slope-finding heat-insulation integrated plate |
| CN216810548U (en) * | 2021-12-28 | 2022-06-24 | 云南建投第二建设有限公司 | Simple floor slab for roof building |
| CN114658222A (en) * | 2022-04-28 | 2022-06-24 | 山西四建集团有限公司 | Anti-cracking bin casting method for roof waterproof protective layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934637A (en) * | 2022-05-31 | 2022-08-23 | 中国十七冶集团有限公司 | Construction method of large-area accessible roof waterproof protection surface layer |
| CN114934637B (en) * | 2022-05-31 | 2024-06-25 | 中国十七冶集团有限公司 | Construction method of large-area waterproof protection surface layer of unmanned roof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104594387B (en) | Improved post-cast strip advance water stop construction method | |
| CN103276858B (en) | Drainage structure for inverted roof and construction method of drainage structure | |
| CN103362254A (en) | Building roof construction process | |
| CN102912945B (en) | Roof compound seepage-proofing steam exhausting hole detail treatment technology | |
| CN111851877A (en) | Flat roof drainage method | |
| CN114278017A (en) | Waterproof cast-in-place protective layer anti-cracking structure and construction method thereof | |
| CN203821675U (en) | Large space saddle type integral greening structure roof system | |
| CN115538708A (en) | Construction method for reinforced soil-fixing grid of large-gradient planting inclined roof | |
| CN109811969A (en) | A kind of building body top of the slope structurally waterproof heat insulation house surface surface layer anti-crack construction technique | |
| CN204252414U (en) | Roof covering water-proof structure | |
| CN110863405B (en) | Assembled photovoltaic power generation-high-performance concrete pavement structure and construction method | |
| CN112681624A (en) | Construction method of roof planted in independent basement | |
| CN216810548U (en) | Simple floor slab for roof building | |
| CN205557323U (en) | Hinge joint drainage structures | |
| CN210766835U (en) | Foundation beam side vertical face waterproof structure | |
| CN111456085A (en) | Cast-in-place concrete construction method for pipe gallery segment | |
| CN207685984U (en) | A kind of overlength underground garage external wall structure | |
| CN105926437B (en) | One kind hinge seam discharge structure and its construction method | |
| CN212671027U (en) | Leakage-proof structure for terrace roof | |
| CN206189695U (en) | Roof boarding installation node | |
| CN206189693U (en) | Roof boarding installation node | |
| CN212336545U (en) | Oblique roofing tile hanging anti-leakage structure | |
| CN211898577U (en) | Basement roof waterproof structure | |
| CN109537635B (en) | Waterproof node for deformation joint of top plate of underground garage and construction method | |
| CN211396281U (en) | Reinforced wood structure column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220405 |