CN116856646B - Anti-cracking construction method for passive heat-insulating sound-insulating terrace of building - Google Patents
Anti-cracking construction method for passive heat-insulating sound-insulating terrace of building Download PDFInfo
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- CN116856646B CN116856646B CN202310920560.8A CN202310920560A CN116856646B CN 116856646 B CN116856646 B CN 116856646B CN 202310920560 A CN202310920560 A CN 202310920560A CN 116856646 B CN116856646 B CN 116856646B
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- 238000005336 cracking Methods 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims abstract description 11
- 239000004793 Polystyrene Substances 0.000 claims abstract description 44
- 229920002223 polystyrene Polymers 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 43
- 239000010439 graphite Substances 0.000 claims abstract description 43
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 239000002344 surface layer Substances 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 239000002002 slurry Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 9
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
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- 230000005611 electricity Effects 0.000 claims description 2
- 230000036961 partial effect Effects 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 2
- 230000001070 adhesive effect Effects 0.000 claims 2
- 238000010079 rubber tapping Methods 0.000 claims 2
- 239000010410 layer Substances 0.000 abstract description 14
- 238000004321 preservation Methods 0.000 abstract description 7
- 239000004575 stone Substances 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a construction technology of a passive building heat-insulation sound-insulation terrace, in particular to a crack-prevention construction method of the passive building heat-insulation sound-insulation terrace. Through infiltration concrete floor and at the unsettled heat preservation of setting up in top of concrete floor, through pressing from both sides the heat preservation level and establish can avoid traditional concrete floor roughness to adverse factors such as terrace levelness and roughness, hollowness. By carrying out grouting treatment between the suspended concrete floor slab and the graphite polystyrene heat-insulating plate and matching with special operations of grouting holes, overflow holes and plugging structures installed at the overflow holes, the graphite polystyrene heat-insulating plate and the concrete floor slab can be well combined and treated by self-compacting anti-cracking concrete, and air can be effectively discharged. The solution is as follows: the concrete is extremely low in adhesion force and easy to separate from the heat-insulating board, and the heat-insulating board and the fine stone concrete layer are not uniformly separated to generate hollowness, so that the compactness of the structural layer is not uniform, the crack development is aggravated, and the problem that the surface layer cracks cannot be completely eradicated.
Description
Technical Field
The invention relates to a construction technology of a passive building heat-insulation sound-insulation terrace, in particular to a crack-prevention construction method of the passive building heat-insulation sound-insulation terrace.
Background
In recent years, along with the requirements of the heat and sound insulation design of the newly-built passive building on the floor of the residential building, a plurality of newly-built residential buildings adopt various heat and sound insulation structures of the floor of the residential building, and the used materials adopt inorganic heat insulation mortar, extruded polystyrene boards, polyester sound insulation mats and the like as main materials, and the method comprises the following steps: the concrete floor, the heat preservation structure layer and the fine stone concrete leveling layer. The concrete leveling layer has the structure that the steel wire mesh is additionally arranged for paving and the steel wire mesh is not additionally arranged. However, after acceptance and delivery, the fine stone concrete layer is cracked successively, and becomes a more common quality problem, and the repair workload of a construction unit causes a small loss of the terrace surface layer as an indoor finishing surface, so that the use function and the attractiveness of the building are affected.
The generation reason of the concrete surface crack is analyzed: the bonding force between the concrete and the heat-insulating plate is extremely low, the heat-insulating plate and the fine stone concrete layer are separated unevenly to generate hollows, so that the compactness of the structural layer is uneven, crack development is aggravated, whether surface layer maintenance is in place or whether welding wire meshes are additionally arranged on the fine stone concrete or not is difficult to overcome the condition of hollowness mechanically, and therefore the occurrence of surface layer cracking cannot be stopped.
Disclosure of Invention
The invention solves the following problems: the concrete is extremely low in adhesion force and easy to separate from the heat-insulating board, and the heat-insulating board and the fine stone concrete layer are unevenly separated to generate hollowness, so that the compactness of the structural layer is uneven, the crack development is aggravated, and the occurrence of surface layer cracking cannot be stopped.
In order to achieve the above purpose, the inventor obtains a passive construction method for building heat-insulation sound-insulation terrace anti-cracking seam through practice and summarization, which adopts the following technical scheme:
a method for preventing cracks of a passive building heat-insulating sound-insulating terrace comprises the following steps:
preparation:
A grid area is bounced on the surface of the concrete floor according to the requirements of a design drawing, pre-buried holes are drilled at nodes of the grid area, the surface of the floor is cleaned, expansion bolts are installed in the drilled pre-buried holes, gaskets and separation net plates are sleeved outside the expansion bolts, and the thicknesses of the gaskets are adjusted through laser calibration so that the tops of the separation net plates are positioned on the same horizontal plane;
Holes for installing expansion bolts are formed in the graphite polystyrene heat-insulating plate in the areas corresponding to the expansion bolts, grouting holes and slurry overflow holes are formed in the graphite polystyrene heat-insulating plate in the areas between the holes for installing the expansion bolts, and a plugging structure is installed in the slurry overflow holes;
impregnating the surface of a concrete floor slab;
and (3) mounting:
Installing holes of the expansion bolts and the graphite polystyrene heat-insulating plate, which correspond to the holes for installing the expansion bolts, sleeving connecting pieces on the top of the graphite polystyrene heat-insulating plate, and finally fixedly installing the connecting pieces through nuts, wherein the expansion bolts and the nuts are made of heat-insulating materials, and heat-insulating materials are smeared between the expansion bolts and the graphite polystyrene heat-insulating plate;
installing a reinforcing mesh on the connecting sheet, after installing the reinforcing mesh, externally connecting grouting holes with grouting equipment, forming an adhesive layer by using the injected slurry as self-compacting anti-cracking concrete, stopping grouting when the injected slurry is observed to enter the inside of the plugging structure from the inside of the grouting holes and is discharged, removing a grouting pipeline and grouting equipment, cleaning the slurry inside the plugging structure, internally extruding, bending and folding the plugging structure inside the grouting holes, filling a proper amount of sealing heat-insulating glue into the plugging structure, plugging the grouting holes by using a waste graphite polystyrene heat-insulating plate during punching, cleaning part of slurry inside the grouting holes, smearing the sealing heat-insulating glue on the inner wall of the holes, and finally inserting the waste graphite polystyrene heat-insulating plate during punching into Kong Nacheng;
And (3) surface layer construction:
Pouring self-compaction anti-cracking concrete at the top of the graphite polystyrene heat-insulating board, drawing and scraping to be flat, the surface layer is formed by polishing after the roller is used for cross rolling back and forth until the surface is flat and compact and cement slurry is discharged.
In a specific embodiment of the invention, the plugging structure comprises two connecting membranes and a fixing sheet, wherein the connecting membranes are adsorbed by static electricity, the end parts of the connecting membranes are integrated by thermal fusion, the fixing sheet comprises two symmetrically arranged single sheets, the two single sheets are arranged up and down, the free ends of the two single sheets are connected by a pressing sheet, the limit of elastic deformation of the pressing sheet is larger than that of the single sheets, a guide groove and a pin are arranged at the part, close to the free ends, of the two single sheets, and the pin on one single sheet is in sliding fit with the guide groove on the other single sheet.
In a specific embodiment of the invention, when the blocking structure is pulped, the pulp in the area which is 3/5~3/4 times of the exposed length of the blocking structure is cleaned, the cleaned blocking structure part is clamped and squeezed into the pulp overflow hole, the internal pulp can squeeze the connecting membrane of the blocking structure to bend and deform to form a wavy structure part, the connecting membrane part area positioned in the pulp overflow hole is electrostatically adsorbed, and finally the sealing heat-insulating glue is filled in the internal part and is matched with the waste graphite polystyrene heat-insulating board for sealing the pulp overflow hole.
In a specific embodiment of the present invention, when the connecting membrane is installed, the connecting membrane has a structure with a large end and a small end, two pressing sheets are pressed to approach each other, two ends of a single sheet are pressed to approach each other, corresponding ends of two single sheets are separated from each other, the two single sheets are placed in the big end of the connecting membrane, after the single sheets in the state enter the inside of the overflow hole to correspond to each other, the two single sheets are released, and the connecting membrane is installed in the overflow hole by utilizing the capability of elastic deformation and reset of the two single sheets.
In one embodiment of the invention, the grouting holes and the overflow holes are arranged diagonally, and the diagonal reference is a grid area popped up from the surface layer of the concrete floor slab.
In a specific embodiment of the invention, when the graphite polystyrene insulation board is ready to work, a blind hole is formed in the bottom surface of the graphite polystyrene insulation board, a water diversion belt and a water absorption expansion material are installed in the blind hole, the water diversion belt passes through an installation piece to complete the installation, the water absorption expansion material is closely blocked at the top of the blind hole by the installation piece, the vertical section of the blind hole is of a structure with a large top and a small bottom, the horizontal section of the blind hole is of a round or waist-shaped or rectangular structure, and the water diversion belt penetrates through the installation piece.
In a specific embodiment of the invention, the middle part of the mounting piece is sleeved with a rigid PVC pipe, the bottom of the rigid PVC pipe is provided with a notch which is suitable for leading out a water leading belt, a net mouth disc is arranged on the rigid PVC pipe in the top area of the mounting piece in a sliding way, the top end of the water leading belt penetrates through the top end of the rigid PVC pipe and is connected with the net mouth disc, the top of the rigid PVC pipe is abutted to the top of the blind hole, the bottom of the rigid PVC pipe is abutted to the concrete floor slab, the rigid PVC pipe can slide relative to the mounting piece after the water absorbing expansion material absorbs water and expands, and the net mouth on the net mouth disc is of a structure with a large lower part and a small upper part, so that the water absorbing expansion material can conveniently penetrate through.
In a specific embodiment of the invention, a unidirectional scroll is arranged on one side of the top of the mounting piece, an impeller is arranged on the outer side of the unidirectional scroll, and the impeller drives the impeller to rotate unidirectionally and gradually tighten the water guiding belt inside the blind hole after the water absorbing expansion material expands in water through the unidirectional scroll.
In a specific embodiment of the invention, the mounting piece is two semicircles which are symmetrically arranged, the joint parts of the two semicircles are integrally formed with folds, the bottoms of the two semicircles are provided with the operation parts, the two semicircles are folded and bent through the operation parts to force the folds to elastically deform, then the folds enter the blind hole, and the folds elastically reset after the acting force at the operation parts is released, so that the mounting piece is mounted in the blind hole.
In a specific embodiment of the invention, the cross section of the separation screen plate is of a T-shaped structure and the thickness of the separation screen plate is 3-8 mm.
Compared with the prior art, the invention has the following beneficial effects: through infiltration concrete floor and at the unsettled heat preservation of setting up in top of concrete floor, through pressing from both sides the heat preservation level and establish can avoid traditional concrete floor roughness to adverse factors such as terrace levelness and roughness, hollowness. By carrying out grouting treatment between the suspended concrete floor slab and the graphite polystyrene heat-insulating plate and matching with special operations of grouting holes, overflow holes and plugging structures installed at the overflow holes, the graphite polystyrene heat-insulating plate and the concrete floor slab can be well combined and treated by self-compacting anti-cracking concrete, and air can be effectively discharged. The reinforcing mesh is arranged at the top of the graphite polystyrene heat-insulating plate, the reinforcing mesh and the concrete floor slab are fixed through the expansion bolts, meanwhile, the expansion bolts are made of heat-insulating materials, so that the heat-insulating and sound-insulating effects of the heat-insulating layer of the passive building can be ensured, meanwhile, the tensile stress of the surface layer can be effectively reduced through the reinforcing mesh, and the cracking phenomenon is avoided. The bottom of graphite polystyrene heated board sets up the blind hole, utilizes the inside installed part of blind hole and drainage area, the expansion material that absorbs water, will drive the outside crowded of installed part through the inside inflation effect of expansion material that absorbs water, can also effectively retrieve the drainage area that the installed part moved out simultaneously in the crowded in-process outward, avoids being close to the drainage area of blind hole department and appears "nest to hold down" phenomenon when the tie coat is poured into, improves the anchor effect of structure tie coat and heat preservation, stops the fracture. The water diversion belt is preferably in a net belt type structure, so that the anchoring force between the bonding layer and the water diversion belt can be improved.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the overall structure of the present invention.
FIG. 3 is a cross-sectional view of the whole structure of the blind hole on the graphite polystyrene insulation board.
Fig. 4 is a bottom view of the graphite polystyrene insulation board and the partition screen board of the present invention after being connected, wherein the broken line part is the elastic line area on the concrete floor.
FIG. 5 is a cross-sectional view of the overflow holes and grouting holes of the graphite polystyrene insulation board of the present invention.
FIG. 6 is a cross-sectional view of the graphite polystyrene insulation board of the present invention before grouting at the overflow holes and grouting holes.
Fig. 7 is a schematic view showing the whole structure of the fixing plate and the connecting plate in fig. 6.
Fig. 8 is a diagram showing the connection relationship between a single fixing piece and a connecting piece in fig. 7.
Fig. 9 is an enlarged view of a portion of one embodiment of the blind hole of fig. 3.
Fig. 10 is a schematic view of the water-swellable material of fig. 9 in a non-swelled configuration.
Fig. 11 is an enlarged view of a portion of another embodiment of the blind hole of fig. 3.
Fig. 12 is a schematic structural view of a water guiding belt in the present invention.
FIG. 13 is a diagram showing the positional relationship between expansion bolts and dividing webs and connecting sheets in the present invention.
Fig. 14 is an enlarged view of the structure of the connection structure of fig. 13.
Fig. 15 is a schematic overall structure of the connection structure in fig. 13.
Fig. 16 is a schematic view showing the state of the plugging structure in the present invention.
Fig. 17 is an enlarged view of a portion of one embodiment of the blind hole of fig. 3.
Fig. 18 is an enlarged view of a portion of one embodiment of the blind hole of fig. 3.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Embodiment 1, a method for preventing cracks of a passive building heat-insulating sound-insulating terrace, comprising the following steps:
1) Preparation:
a grid area is bounced on the surface of the concrete floor slab 1 according to the requirements of a design drawing, pre-buried holes are drilled at the nodes of the grid area, the surface of the floor slab is cleaned, expansion bolts 2 are installed in the drilled pre-buried holes, as shown in figures 4 and 13, gaskets 3 and separation net plates 4 are sleeved outside the expansion bolts 2, and the thickness of the gaskets 3 is adjusted through laser calibration so that the tops of the separation net plates 4 are positioned on the same horizontal plane;
Holes for installing the expansion bolts 2 are formed in the graphite polystyrene heat-insulating plate 5 in the area corresponding to the expansion bolts 2, as shown in fig. 4, grouting holes 8 and slurry overflow holes 9 are formed in the graphite polystyrene heat-insulating plate 5 in the area between the holes for installing the expansion bolts 2, and a plugging structure 10 is installed in the slurry overflow holes 9; the self-compaction anti-cracking concrete top filled later can be ensured to be divided into a plurality of dry areas through the separation screen 4, grouting filling can be completed by matching the grouting holes 9 and the grouting holes 8, and meanwhile, the integrity and structural durability or stability durability of the bonding layer 16 and the heat preservation layer and the surface layer can be ensured.
Impregnating the surface of the concrete floor slab 1;
2) And (3) mounting:
The expansion bolts 2 and the graphite polystyrene heat insulation board 5 are correspondingly provided with holes for installing the expansion bolts 2, the top of the graphite polystyrene heat insulation board 5 is sleeved with a connecting sheet 7, and finally the connecting sheet 7 is fixedly installed through a nut 6, wherein the expansion bolts 2 and the nut 6 are made of heat insulation materials, and heat insulation materials are smeared between the expansion bolts 2 and the graphite polystyrene heat insulation board 5;
Installing a reinforcing mesh 15 on the connecting sheet 7, after installing the reinforcing mesh 15, externally connecting grouting holes 8 with grouting equipment, forming an adhesive layer 16 by using injected slurry for self-compacting anti-cracking concrete, stopping grouting when the injected slurry is observed to enter the inside of the plugging structure 10 from the inside of the grouting holes 9 and is discharged, removing grouting pipelines and grouting equipment, cleaning the slurry in the plugging structure 10, extruding and pouring the plugging structure 10 into the inside of the grouting holes 9, bending and folding the plugging structure 10 into the inside of the grouting holes 9, filling a proper amount of sealing and heat-insulating glue into the plugging structure 10, plugging the grouting holes 9 by using a waste graphite polystyrene heat-insulating plate 5 during punching, cleaning part of slurry in the inside of the grouting holes 8, smearing the sealing and heat-insulating glue on the inner walls of the holes, and finally inserting the waste graphite polystyrene heat-insulating plate 5 during punching into the directions Kong Nacheng;
3) And (3) surface layer construction:
Self-compaction anti-cracking concrete is poured on the top of the graphite polystyrene heat-insulating plate 5, the self-compaction anti-cracking concrete is pulled and scraped to be smooth, a roller is used for crosswise rolling back and forth until the surface is smooth and compact, cement slurry is sprayed out, and then the surface layer 17 is formed by trowelling.
In another embodiment of the present invention, as shown in fig. 5, 6, 7, 8 and 13, the blocking structure 10 includes two connecting membranes 27 and a fixing plate 28, wherein the inner side and the outer side of the two connecting membranes 27 can be absorbed by electrostatic force, the side ends of the two connecting membranes 27 are integrated by thermal fusion, the fixing plate 28 includes two symmetrically arranged single plates, the two single plates are arranged up and down, the free ends of the two single plates are connected by a pressing plate 29, the limit of elastic deformation of the pressing plate 29 is greater than the limit of elastic deformation of the single plates, a guide groove 30 and a pin 31 are arranged at the part of the two single plates close to the free ends, and the pin 31 on the single plate is in sliding fit with the guide groove 30 on the other single plate.
When the sealing structure 10 is subjected to slurry discharge, slurry in a region which is 3/5~3/4 times the exposed length of the sealing structure 10 is cleaned, the cleaned sealing structure 10 part is clamped and squeezed into the slurry overflow hole 9, the inner slurry can squeeze the connecting membrane 27 of the sealing structure 10 to bend and deform to form a wavy structure part, the connecting membrane 27 part region positioned in the slurry overflow hole 9 is subjected to electrostatic adsorption, and finally, the sealing heat-insulating glue is filled in the inner part and is matched with the waste graphite polystyrene heat-insulating board 5 for sealing the slurry overflow hole 9.
When the connecting diaphragm 27 is installed, the connecting diaphragm 27 is of a structure with one large end and one small end, two pressing plates 29 are pressed to be close to each other, two ends of a single sheet are close to each other, corresponding ends of two single sheets are far away from each other, the two single sheets are placed in the big end of the connecting diaphragm 27, after the single sheets in the state enter the inside of the pulp overflow hole 9 to correspond to each other, the two single sheets are released, and the connecting diaphragm 27 is installed in the pulp overflow hole 9 by utilizing the elastic deformation reset capability of the two single sheets. As shown in fig. 15, in the natural state, the connection diaphragm 27 is located inside the slurry overflow hole 9, when the slurry in the inside overflows, the connection diaphragm 27 is extruded and exposed outside the slurry overflow hole 9 and the slurry is discharged, then the slurry in the connection diaphragm 27 needs to be extruded and extruded outwards, the cleanliness of the outer wall of the connection diaphragm 27 is guaranteed, the connection diaphragm 27 is extruded inwards to the inside of the slurry overflow hole 9, after a proper amount of sealant is filled in the inside extrusion, the connection diaphragm 27 can be extruded to a large stroke and then can be pulled in a small stroke, the inside extrusion can ensure that one side of the connection diaphragm 27 contacting the slurry is completely leaked in the slurry, the external pulling can utilize the slurry fluid pressure to extrude the other side of the connection diaphragm 27 contacting the slurry in an uncertain manner so as to enable the connection diaphragm 27 to have a folding part, the sealing performance is guaranteed, and meanwhile, one side not contacting the slurry is adsorbed by electrostatic force.
In another embodiment of the present invention, as shown in fig. 4, the grout holes 9 and the grouting holes 8 are diagonally arranged, and the diagonal reference is a grid area popped up from the surface layer of the concrete floor slab 1. The diagonal arrangement of the grouting holes 9 and 8 can be used for facilitating the filling of the inside.
In another embodiment of the present invention, as shown in fig. 3, 9, 10 and 12, a blind hole 12 is formed in the bottom surface of the graphite polystyrene insulation board 5, a water guiding belt 11 and a water absorbing and expanding material 14 are installed in the blind hole 12, the water guiding belt 11 is installed through a mounting member 13, the water absorbing and expanding material 14 is tightly plugged at the top of the blind hole 12 by the mounting member 13, the vertical section of the blind hole 12 is in a structure with a large top and a small bottom, the horizontal section is in a circular or waist-shaped or rectangular structure, the horizontal section is adaptively laid and installed according to actual working conditions, and the water guiding belt 11 is arranged through the mounting member 13. The water diversion belt is laid by adopting a net belt structure.
The middle part cover of installed part 13 is equipped with rigid PVC pipe 32, and the bottom of rigid PVC pipe 32 is provided with the opening and is suitable for drawing forth of water zone 11, and the net gape dish 33 has been slided to the cloth on the regional rigid PVC pipe 32 in installed part 13 top, and the top of water zone 11 runs through the top of rigid PVC pipe 32 and is connected with net gape dish 33, and the top butt of rigid PVC pipe 32 is on blind hole 12 top, bottom butt on concrete floor 1, and rigid PVC pipe 32 can slide relative installed part 13 after the expansion of water swelling material 14 absorbs water. The net openings on the net opening disc 33 are of a structure with large bottom and small top, so that the water-absorbing expansion material 14 can be conveniently worn. In the grouting process between the concrete floor slab 1 and the graphite polystyrene heat-insulating board 5, the water diversion belt 11 can introduce water in the slurry into the top end in the blind hole 12, so that the water-absorbing expansion material 14 on the water diversion belt is expanded to force the net mouth disc 33 to be pressed down, the water-absorbing expansion material 14 advances into an expansion area, the blind hole 12 can be gradually filled along with continuous expansion of the water-absorbing expansion material 14 until the net mouth disc 33 is pressed down to a small distance together with the water-absorbing expansion material 14 after being contacted with the mounting piece 13, and the blind hole 12 is plugged.
In another embodiment of the present invention, as shown in fig. 3, 11 and 12, when preparing for working, a blind hole 12 is opened on the bottom surface of the graphite polystyrene insulation board 5, a water guiding belt 11 and a water absorbing expansion material 14 are installed inside the blind hole 12, the water guiding belt 11 is installed through an installation piece 13, the water absorbing expansion material 14 is tightly plugged at the top of the blind hole 12 by the installation piece 13, the vertical section of the blind hole 12 is in a structure with a large top and a small bottom, the horizontal section is in a circular or waist-shaped or rectangular structure, the horizontal section is installed in an adaptive arrangement mode according to actual working conditions, and the water guiding belt 11 is arranged through the installation piece 13. The water diversion belt is laid by adopting a net belt structure.
The unidirectional scroll 34 is arranged on one side of the top of the mounting piece 13, the impeller 35 is arranged on the outer side of the unidirectional scroll 34, and the impeller 35 drives the impeller 35 to rotate unidirectionally and gradually tighten the water guiding belt 11 in the blind hole 12 after the water absorbing expansion material 14 expands in water through the unidirectional scroll 34. After the water-absorbing expansion material 14 expands, the impeller 35 is driven to be matched with the unidirectional scroll 34 to perform unidirectional rotation to tighten the water-guiding belt 11, and the unidirectional scroll 34 adopts a traditional unidirectional transmission structure of ratchet wheels and pawls. And then can extrude outside mounting 13 and press bond in blind hole 12 inside, can also lift up drainage belt 11 simultaneously, avoid appearing "nest to hold out" and lead to stress concentration's problem in self-compaction anti-crack concrete.
In another embodiment of the present invention, as shown in fig. 17 and 18, the mounting member 13 is two symmetrically arranged semicircles, the joint of the two semicircles is integrally formed with a crease 36, the bottoms of the two semicircles are provided with an operation portion 37, the two semicircles are folded in half and bent by the operation portion 37 to force the crease 36 to elastically deform, then enter the blind hole 12, and after the acting force at the operation portion 37 is released, the crease 36 is elastically reset, so that the mounting member 13 is mounted in the blind hole 12.
In another embodiment of the present invention, the cross section of the partition screen 4 is a T-shaped structure and the thickness is 3-8 mm, preferably 8mm.
In another embodiment of the present invention, as shown in fig. 13, 14 and 15, a connection structure 18 is installed on a connection piece 7 and is suitable for fast and rigidly clamping and fixing a reinforcing mesh 15, a reinforcing bar notch is opened at the top of the connection structure 18, the reinforcing bar notch is consistent with the reinforcing bar size of the reinforcing mesh 15, an installation opening 20 is opened at one side of the reinforcing bar notch, a connection block 25 is rotatably installed at the installation opening 20, a torsion spring 24 is installed at a rotation node, a pressure head 23 is sleeved at the outer side of the connection block 25, a moving groove is opened on the pressure head 23 along the length direction, a spring 26 suitable for flexibly installing the connection block 25 and the pressure head 23 is installed in the moving groove, an action protrusion 19 is installed at one side of the pressure head 23 opposite to the installation opening 20, a pressure-bearing protrusion 21 suitable for abutting and obliquely arranging the action protrusion 19 is installed on the inner wall of the installation opening 20, the action protrusion 20 moves outwards relatively and compresses the spring 26 after abutting the pressure head 21 in the internal rotation process of the reinforcing bar notch, when the side of the reinforcing bar passes through the end of the pressure head 23, the pressure head 23 resets under the action of the torsion spring 24 and the spring 26 and rigidly presses and fixes the reinforcing bar in the notch after the end of the reinforcing bar passes through the end of the pressure head 23, and the end of the pressure head 23 is opposite to the side of the stopper 22 opposite to the installation opening.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. The substitutions may be partial structures, devices, or method steps, or may be a complete solution. The technical proposal and the invention concept are equivalent to or changed in accordance with the invention, and the invention is covered in the protection scope of the invention.
Claims (8)
1. The method for preventing the crack of the passive heat-insulating sound-insulating terrace of the building is characterized by comprising the following steps of:
1) Preparation:
A grid area is bounced on the surface of a concrete floor (1) according to the requirements of a design drawing, pre-buried holes are drilled at the nodes of the grid area, the surface of the concrete floor (1) is cleaned, expansion bolts (2) are installed in the drilled pre-buried holes, gaskets (3) and separation net plates (4) are sleeved on the outer sides of the expansion bolts (2), and the thickness of the gaskets (3) is adjusted through laser calibration so that the tops of the separation net plates (4) are positioned on the same horizontal plane;
holes for installing the expansion bolts (2) are formed in the graphite polystyrene heat-insulating plate (5) in the areas corresponding to the expansion bolts (2), grouting holes (8) and slurry overflow holes (9) are formed in the graphite polystyrene heat-insulating plate (5) in the areas between the holes for installing the expansion bolts (2), and a plugging structure (10) is arranged in the slurry overflow holes (9);
Impregnating the surface of a concrete floor slab (1);
2) And (3) mounting:
installing holes of the expansion bolts (2) and the graphite polystyrene heat insulation board (5) corresponding to the holes for installing the expansion bolts (2), sleeving connecting pieces (7) on the top of the graphite polystyrene heat insulation board (5), and finally fixedly installing the connecting pieces (7) through nuts (6), wherein the expansion bolts (2) and the nuts (6) are made of heat insulation materials, and heat insulation materials are smeared between the expansion bolts (2) and the graphite polystyrene heat insulation board (5);
Installing a reinforcing mesh (15) on the connecting sheet (7), after installing the reinforcing mesh (15), externally connecting grouting holes (8) with grouting equipment, forming an adhesive layer (16) for self-compacting anti-cracking concrete by the injected slurry, stopping grouting when the injected slurry is observed to enter the inside of the plugging structure (10) from the grouting holes (9) and is discharged, dismantling grouting pipelines and grouting equipment, cleaning the slurry in the plugging structure (10), extruding inwards, bending and folding the plugging structure (10) in the grouting holes (9), filling a proper amount of sealing and heat-insulating adhesive into the plugging structure (10), plugging the grouting holes (9) by the waste graphite polystyrene heat-insulating plates (5) during tapping, cleaning part of slurry in the grouting holes (8), smearing the sealing and heat-insulating adhesive on the inner walls of the grouting holes (8), and finally inserting the waste graphite polystyrene heat-insulating plates (5) during tapping into the grouting holes (8);
3) And (3) surface layer construction:
Pouring self-compaction anti-cracking concrete at the top of the graphite polystyrene heat-insulating plate (5), drawing and scraping the concrete to be flat, rolling the concrete back and forth by using a roller in a crisscross manner until the surface is flat and compact, and troweling the concrete to form a surface layer (17);
The plugging structure (10) comprises two connecting diaphragms (27) and a fixing piece (28) which are adsorbed by static electricity, wherein the ends of the connecting diaphragms (27) are integrated through thermal fusion, the fixing piece (28) comprises two singlechips which are symmetrically arranged in a horizontal plane projection mode, the two singlechips are arranged up and down, the free ends of the two singlechips are connected through a pressing piece (29), the limit of elastic deformation of the pressing piece (29) is larger than that of the singlechips, a guide groove (30) and a pin (31) are arranged at the parts, close to the free ends, of the two singlechips, and the pin (31) on one singlechip is installed in a sliding fit with the guide groove (30) on the other singlechip;
When the connecting diaphragm (27) is installed, the connecting diaphragm (27) is of a structure with one large end and one small end, two pressing sheets (29) are pressed to be close to each other, two ends of a single sheet are close to each other, corresponding ends of two single sheets are far away from each other, the two single sheets are placed in the big end of the connecting diaphragm (27), after the single sheets in the state enter into the inside of the pulp overflow hole (9), the two single sheets are released, and the connecting diaphragm (27) is installed in the inside of the pulp overflow hole (9) by utilizing the elastic deformation resetting capacity of the two single sheets.
2. The method for preventing cracks of the passive building heat-insulating and sound-insulating terrace according to claim 1 is characterized in that when the sealing structure (10) is subjected to slurry discharge, slurry in a region which is 3/5~3/4 times of the exposed length of the sealing structure (10) is cleaned, the cleaned sealing structure (10) is clamped and squeezed into a slurry overflow hole (9), the inner slurry can squeeze a connecting diaphragm (27) of the sealing structure (10) to form a wavy structure, the connecting diaphragm (27) positioned in the slurry overflow hole (9) is subjected to bending deformation, the partial region of the connecting diaphragm (27) is subjected to electrostatic adsorption, and finally, the sealing heat-insulating glue is filled in the inner part and is matched with a waste graphite polystyrene heat-insulating plate (5) for sealing the slurry overflow hole (9).
3. The method for preventing the crack of the passive building heat-insulating sound-insulating terrace according to claim 2 is characterized in that the grouting holes (9) and the grouting holes (8) are arranged diagonally, and the diagonal reference is a grid area popped up from the surface layer of the concrete floor slab (1).
4. The method for preventing cracks of the passive building heat-insulating and sound-insulating terrace according to claim 2 is characterized in that when the method is used for preparing work, a blind hole (12) is formed in the bottom surface of a graphite polystyrene heat-insulating plate (5), a water diversion belt (11) and a water-absorbing expansion material (14) are installed in the blind hole (12), the water diversion belt (11) is installed through an installation piece (13), the water-absorbing expansion material (14) is tightly plugged at the top of the blind hole (12) through the installation piece (13), the vertical section of the blind hole (12) is of a structure with a large top and a small bottom, the horizontal section of the blind hole is of a round or waist-shaped or rectangular structure, and the water diversion belt (11) penetrates through the installation piece (13).
5. The method for preventing the crack of the passive building heat-insulating and sound-insulating terrace according to claim 4 is characterized in that a rigid PVC pipe (32) is sleeved in the middle of the mounting piece (13), a notch is formed in the bottom of the rigid PVC pipe (32) and suitable for leading out a water guiding belt (11), a net mouth disc (33) is slidingly arranged on the rigid PVC pipe (32) in the top area of the mounting piece (13), the top end of the water guiding belt (11) penetrates through the top end of the rigid PVC pipe (32) and is connected with the net mouth disc (33), the top of the rigid PVC pipe (32) is abutted to the top of a blind hole (12) and the bottom of the rigid PVC pipe (32) is abutted to a concrete floor (1), the rigid PVC pipe (32) can slide relative to the mounting piece (13) after the water absorbing and expanding material (14) absorbs water, and the net mouth on the net mouth disc (33) is of a structure with a large lower size, so that the water absorbing and expanding material (14) can be conveniently penetrated.
6. The method for preventing the crack of the passive building heat-insulating and sound-insulating terrace according to claim 4 is characterized in that a unidirectional scroll (34) is arranged on one side of the top of the mounting piece (13), an impeller (35) is arranged on the outer side of the unidirectional scroll (34), and the impeller (35) drives the impeller (35) to rotate unidirectionally in the blind hole (12) and gradually tighten the water guiding belt (11) after the water absorbing expansion material (14) expands in water through the unidirectional scroll (34).
7. The method for preventing the crack of the passive building heat-insulating and sound-insulating terrace according to claim 5, wherein the mounting piece (13) is two semicircles which are symmetrically distributed, the joint of the two semicircles is integrally formed with a crease (36), the bottoms of the two semicircles are provided with an operation part (37), the two semicircles are folded in half and bent through the operation part (37) to force the crease (36) to elastically deform, then the crease (36) enters the blind hole (12), and after the acting force at the operation part (37) is released, the crease (36) can elastically reset, so that the mounting piece (13) is mounted in the blind hole (12).
8. The method for preventing the crack of the passive building heat-insulating sound-insulating terrace is characterized in that the section of the separation screen plate (4) is of a T-shaped structure and the thickness of the separation screen plate is 3-8 mm.
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| CN110397187A (en) * | 2019-08-15 | 2019-11-01 | 任自放 | Assembled architecture and construction method |
| CN217054147U (en) * | 2022-04-14 | 2022-07-26 | 福州贝克朗新型材料有限公司 | Novel impression terrace coating structure of concrete |
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| US20070130862A1 (en) * | 2005-11-29 | 2007-06-14 | Semmens Blaine K | Roofing system and apparatus for applying rolled roofing material |
| CN102095488B (en) * | 2010-12-03 | 2012-10-03 | 中国电子科技集团公司第四十九研究所 | Optical fiber silicon micro sound pressure sensor-based packaging structure of low-stress convoluted diaphragm |
| CN106759980A (en) * | 2017-01-11 | 2017-05-31 | 山东澳泰建材有限公司 | Graphite extruded sheet composite thermal-insulating wall and its construction technology |
| CN111535545B (en) * | 2020-05-25 | 2022-01-28 | 中冶建工集团有限公司 | Construction process of large-area concrete wear-resistant terrace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110397187A (en) * | 2019-08-15 | 2019-11-01 | 任自放 | Assembled architecture and construction method |
| CN217054147U (en) * | 2022-04-14 | 2022-07-26 | 福州贝克朗新型材料有限公司 | Novel impression terrace coating structure of concrete |
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