CN111155686A - Steel wire mesh frame composite insulation board cast-in-place concrete wall and construction method thereof - Google Patents
Steel wire mesh frame composite insulation board cast-in-place concrete wall and construction method thereof Download PDFInfo
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- CN111155686A CN111155686A CN202010173867.2A CN202010173867A CN111155686A CN 111155686 A CN111155686 A CN 111155686A CN 202010173867 A CN202010173867 A CN 202010173867A CN 111155686 A CN111155686 A CN 111155686A
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- 239000004567 concrete Substances 0.000 title claims abstract description 73
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 71
- 239000010959 steel Substances 0.000 title claims abstract description 71
- 238000009413 insulation Methods 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 32
- 238000005336 cracking Methods 0.000 claims description 18
- 238000009415 formwork Methods 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011398 Portland cement Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 230000003187 abdominal effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000009417 prefabrication Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 229920006389 polyphenyl polymer Polymers 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
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- Architecture (AREA)
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a cast-in-place concrete wall of a steel wire mesh frame composite insulation board and a construction method thereof, wherein the insulation board in the wall is formed by splicing a plurality of square unit boards, L-shaped positioning boards are symmetrically arranged on the front surface and the back surface of each unit board, two ends of each L-shaped positioning board respectively extend out of two side edges of each unit board and are arranged on the side edges, extending sections of two opposite L-shaped positioning boards form clamping grooves, corner parts of the L-shaped positioning boards are arranged at the central positions of the unit boards, connecting ribs are arranged in the centers of the unit boards in a penetrating manner, the middle parts of the connecting ribs penetrate through the centers of the unit boards and the corner parts of the L-shaped positioning boards, and two ends of the connecting ribs are respectively bent and clamped on the steel wire mesh. The heated board of present case adopts the mode of unit concatenation, all forms the bearing structure of net rack formula in the both sides of heated board for wall structure is more firm, and intensity is higher, and the mill is prefabricated and the construction is all very simple convenient, thereby can reduce the construction degree of difficulty, improves the efficiency of construction.
Description
Technical Field
The invention relates to the technical field of energy-saving and environment-friendly novel buildings, in particular to a steel wire mesh frame composite insulation board cast-in-place concrete wall and a construction method thereof.
Background
Along with the implementation and application of building energy-saving standards and wall fire prevention and heat insulation design specifications, various novel wall heat insulation materials and heat insulation walls appear in the market, and in order to shorten the construction period and reduce the construction difficulty, an assembly type building mode is gradually developed.
Cast in situ concrete thermal insulation wall includes the concrete wall and the outer heated board of inlayer, to outer heated board, what be commonly used at present is steel wire net rack composite insulation board, this composite insulation board is by polyphenyl board main part and the outer steel wire net rack complex structure as an organic whole of polyphenyl board, wherein, in order to strengthen the adhesive force of heated board and wall body, still be connected with the oblique web silk of inserting on the heated board, the steel wire net rack of heated board is connected to the outer end of inserting the web silk to one side, the interior end that stretches into of oblique web silk stretches into the wall body, when the shaping is pour to the wall body, insert web silk and wall body integrated into one piece to.
The existing cast-in-place concrete heat-insulating wall and the construction method have the following problems: 1. the steel wire mesh frame composite insulation board generally needs to be prefabricated and processed in a factory, and before the prefabrication processing, typesetting and customizing processing are needed according to the size and the layout of a wall body, so that obviously, the construction period and the design difficulty are greatly increased; although adopt to insert the abdominal thread to one side to strengthen composite insulation board's installation, however, insert the abdominal thread to one side often through the on-the-spot welding or the mode of tying up and connect, the construction is inconvenient, in addition, insert the abdominal thread to one side and connected the outer wire net rack of heated board, insert the inner of abdominal thread to one side because the support list is thin, its self produces the deformation easily, and simultaneously, composite insulation board skin still need set up cement mortar layer, the screed-coat, additional layers such as outer decorative board, make outer extra gravity increase, apply the polyphenyl board body very easily to outer holding power, cause heat preservation overall structure unstable.
Based on the problems, the cast-in-place concrete wall body with the steel wire mesh frame composite insulation board and the construction method of the cast-in-place concrete wall body are developed.
Disclosure of Invention
The invention provides a steel wire frame composite insulation board cast-in-place concrete wall and a construction method thereof, wherein the composite insulation board of the wall is assembled and molded in a splicing unit mode, and is assembled and connected in a field mode of matching double-sided steel wire mesh sheets with middle connecting ribs, and a net frame type support structure is formed on two sides of an insulation board main body, so that the wall structure is more stable, the strength is higher, and the factory prefabrication and construction are very simple and convenient, thereby reducing the construction difficulty and improving the construction efficiency.
In order to solve the technical problems, the cast-in-place concrete wall body of the steel wire mesh frame composite insulation board comprises an inner concrete wall body and an outer steel wire mesh frame composite board, and is structurally characterized in that the steel wire mesh frame composite board comprises steel wire mesh sheets at two sides and an insulation board body in the middle; the middle heat preservation plate body is formed by assembling a plurality of square unit plates, L-shaped positioning plates are symmetrically arranged on the front side and the back side of each unit plate, two ends of each L-shaped positioning plate extend out of two side edges of each unit plate respectively and are arranged on the side edges, extending-out sections of two opposite L-shaped positioning plates form clamping grooves, corner parts of the L-shaped positioning plates are arranged at the central positions of the unit plates, connecting ribs penetrate through the centers of the unit plates, the middle parts of the connecting ribs penetrate through the centers of the unit plates and the corner parts of the L-shaped positioning plates, and two ends of the connecting ribs are bent respectively and clamped on steel wire meshes on two sides respectively.
By adopting the structure, the heat-insulation board adopts a unit board assembly type structure, the unit boards at the corner parts can be cut on site, the complex design and typesetting work is avoided, the prefabrication and processing are more convenient, and the construction is more flexible; utilize the splice bar to connect the wire net piece of both sides structure as an organic whole, form the wire net frame that more stabilizes the support, avoided pouring the in-process and bring the gravity load for the heated board after the shaping.
Preferably, the steel wire mesh sheets on the inner side and the inward extending sections of the connecting ribs are cast with the concrete wall body on the inner layer to form an integral structure, and the steel wire mesh sheets on the outer side and the outward extending sections of the connecting ribs are cast with the concrete wall body on the inner layer synchronously to form a concrete protective layer. The steel wire net frame on the inner side can be integrally formed with the wall body in a pouring mode, the stability of the insulation board is improved, and the structure of the whole wall body is stable and high in strength. The outside steel wire mesh is used for pouring synchronously to form a concrete protective layer, can play a better protective role for the heat-insulating plate of the inner layer, and is more convenient and efficient to construct.
A mortar anti-cracking layer is arranged outside the concrete protective layer, and an alkali-resistant mesh cloth is pressed into the mortar anti-cracking layer; the outer side of the mortar anti-cracking layer is provided with a decorative surface layer. After the main wall body is formed, an anti-cracking layer and a decorative layer can be arranged on the outer layer according to needs. The anti-cracking layer is matched with the grid cloth, so that the stability of the outer wall surface can be ensured, and the cracking phenomenon is avoided.
For the connection of the connecting ribs and the steel wire mesh, the two ends of the connecting ribs are clamped on the transverse steel wires of the steel wire mesh frame, and the clamping parts are reinforced and fixed in a welding or steel wire rope bundling mode. Although the connecting ribs and the steel wire mesh sheets are finally integrally formed through pouring concrete, the phenomenon of displacement is avoided in order to ensure the stability of the grid structure in the pouring process, and therefore the connecting ribs and the steel wire mesh sheets are fixedly reinforced at the clamping position.
For the arrangement mode of the L-shaped plates on the unit plates, the front and back panels of the unit plates are provided with L-shaped grooves matched with the L-shaped positioning plates, two ends of each L-shaped groove penetrate through two side edges of each unit plate respectively, and the positions of the other two side edges of each unit plate are provided with positioning grooves matched with the extending sections of the L-shaped positioning plates on the adjacent unit plates. The L-shaped groove is used as a limiting groove of the L-shaped positioning plate, the L-shaped plate is prevented from being displaced to influence the stability of the whole assembling structure, the positioning groove and the extending end of the L-shaped positioning plate correspond to each other in an inserting and assembling mode, and the stability of the structure is further guaranteed.
In order to further enhance the stability of the assembly structure, the extending section of the L-shaped positioning plate is provided with a main positioning hole, the positioning groove is correspondingly provided with an auxiliary positioning hole, and after assembly, positioning pins are arranged in the main positioning hole and the auxiliary positioning hole. The positioning pin is used for limiting the end part of the L-shaped positioning plate, a common pin body can be adopted, and the positioning pin is preferably an elastic clamping pin with an agnail at the end part. By utilizing the elasticity and the barb structure, the pin body can be firmly clamped in the auxiliary positioning hole, and the stability of the assembling structure is further ensured.
For the mounting structure of the connecting rib, a central hole of the unit plate for the connecting rib to pass through is formed in the center of the unit plate, a locating plate penetrating hole for the connecting rib to pass through is formed in the corner part of the L-shaped locating plate, the connecting rib sequentially passes through the locating plate penetrating hole in the outer L-shaped locating plate, the central hole of the unit plate and the locating plate penetrating hole in the inner L-shaped locating plate, the middle part of the connecting rib is a threaded section, locking nuts are respectively screwed on two sides of the unit plate, and the two locking nuts are respectively screwed and pressed on the L-shaped locating plates on the two sides. The connecting rib is locked and installed on the L-shaped positioning plates on two sides through the two nuts, on one hand, the installation firmness of the L-shaped positioning plates is guaranteed, on the other hand, the extending length of the connecting rib on the inner side and the outer side can be properly adjusted in the screw installation mode, and the site construction is more flexible and convenient.
In order to solve the technical problem, the construction method of the steel wire frame composite insulation board cast-in-place concrete wall body comprises the following steps:
step 1) prefabricating unit plates, L-shaped positioning plates and intercepting connecting ribs, wherein the length and the width of the unit plates are limited to 80-150 CM according to the size of a wall body; the size of the L-shaped positioning plate is set according to the length and the width of the unit plate, and the length of the extending section of the L-shaped positioning plate is not less than 15 CM;
step 2) assembling the steel wire mesh frame composite board on a construction site, installing an L-shaped positioning plate and connecting ribs on the unit boards, and correspondingly clamping adjacent unit boards through clamping grooves respectively to ensure that no gap exists at the splicing part of the unit boards which are adjacent left and right and adjacent up and down; the end parts of the connecting ribs are subjected to on-site bending construction and are reinforced and fixed in a steel wire rope binding or welding mode, so that the end parts of the connecting ribs are firmly connected with the steel wire mesh sheets on the two sides;
step 3) supporting an inner formwork and an outer formwork of a wall body, firstly installing angle formworks, carrying out good positioning measures on the upper part and the lower part of the formworks, adding supports if necessary, and ensuring that no hole or gap is left at any corner part to ensure that no slurry leaks at the abutted seam;
step 4), pouring concrete, wherein the continuity of the concrete is kept in the concrete pumping and pouring processes, and layering is reduced; during construction, the vibration rod cannot touch the heat insulation plate and the connecting piece, and tools such as a rubber hammer and the like are adopted to assist in knocking outside the template; when concrete is poured, the balance of concrete pouring speeds of the two sides of the insulation board is controlled, the height difference of concrete grout surfaces of the two sides is observed in time and is strictly controlled within 40 CM;
step 5), immediately coating a curing agent on the concrete on the two sides of the net rack plate after the template is removed or covering within 12 hours, and carrying out moisture preservation and curing; curing the concrete mixed by Portland cement, ordinary Portland cement or slag Portland cement for not less than 7 days, and curing the concrete mixed with the retarding additive for not less than 14 days; during the curing period, watering curing is adopted to keep the concrete in a wet state or plastic film covering curing is adopted to keep the plastic cloth filled with condensed water.
And 6) forming the main wall after the maintenance is finished, and performing anti-cracking layer construction or outer layer veneer construction according to the requirement.
When the main positioning hole and the auxiliary positioning hole are arranged and the positioning pin is installed, only the positioning groove can be formed when the unit board is prefabricated in the step 1), and the auxiliary positioning hole on the positioning groove can be formed in the assembling process. And when the L-shaped positioning plate is prefabricated, a main positioning hole is formed. Because the structures of the front side and the back side of the unit plate are symmetrical, the auxiliary positioning holes on the front side and the back side of the unit plate can be formed at one time by forming the through holes, but the fact that the pre-formed main positioning holes and the auxiliary positioning holes can accurately correspond is difficult to guarantee in assembly, therefore, the auxiliary positioning holes are preferably formed on site, and when the auxiliary positioning holes are formed on site, the auxiliary positioning holes are counter bores and do not need to be formed into through holes.
In conclusion, the wall body is stable in structure, high in strength, simple and convenient to prefabricate and construct in a factory, greatly reduces construction difficulty and improves construction efficiency.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic structural view of a wall according to the present invention;
FIG. 2 is a schematic view of the structure along the part A in FIG. 1;
FIG. 3 is a schematic view of the structure along the portion B in FIG. 1;
FIG. 4 is a schematic structural view of the unit plate assembly of the present invention;
FIG. 5 is a perspective view of a single cell plate according to the present invention;
FIG. 6 is a schematic perspective view of an L-shaped positioning plate according to the present invention;
FIG. 7 is a schematic view of a three-dimensional structure of the present invention in which a single unit plate, an L-shaped positioning plate, and a connecting rib are integrally assembled.
Detailed Description
Referring to the attached drawings, the cast-in-place concrete wall body of the steel wire mesh frame composite insulation board comprises an inner concrete wall body 1 and an outer steel wire mesh frame composite board, and is characterized in that the steel wire mesh frame composite board comprises steel wire mesh sheets 2 on two sides and an insulation board body 3 in the middle; the middle heat preservation plate body 3 is formed by assembling a plurality of square unit plates 31, L-shaped positioning plates 4 are symmetrically arranged on the front side and the back side of each unit plate 31, two ends of each L-shaped positioning plate 4 extend out of two side edges of each unit plate 31 respectively and are arranged on the side edges, extending sections of two opposite L-shaped positioning plates 4 form clamping grooves, corner parts of the L-shaped positioning plates 4 are arranged at the central positions of the unit plates 31, connecting ribs 5 penetrate through the centers of the unit plates 31, the middle parts of the connecting ribs 5 penetrate through the centers of the unit plates 31 and the corner parts of the L-shaped positioning plates 4, and two ends of each connecting rib 5 are bent respectively and clamped on the steel wire meshes 2 on the two sides respectively.
Referring to the attached drawings, the steel wire mesh 2 and the inward extending sections of the connecting ribs 5 on the inner side are cast with the concrete wall 1 on the inner layer to form an integrated structure, and the steel wire mesh 2 and the outward extending sections of the connecting ribs on the outer side are cast with the concrete wall 1 on the inner layer synchronously to form a concrete protective layer 6.
The heat preservation plate adopts a unit plate 31 splicing type structure, the unit plates at the corner parts can be cut on site, the complex design and typesetting work is avoided, the prefabrication and processing are more convenient, and the construction is more flexible; utilize the splice bar to connect the wire net piece of both sides structure as an organic whole, form the wire net frame that more stabilizes the support, avoided pouring the in-process and bring the gravity load for the heated board after the shaping. The steel wire net frame 2 on the inner side can be integrally formed with the wall body in a pouring mode, the stability of the insulation board is improved, and the structure of the whole wall body is stable and high in strength. The steel wire mesh sheet 2 on the outer side is used for being synchronously poured to form a concrete protective layer, so that the inner layer insulation board can be well protected, and meanwhile, the structure is more convenient and efficient to construct.
According to the requirement, a mortar anti-cracking layer 7 is arranged outside the concrete protective layer 6, and alkali-resistant mesh cloth 71 is pressed into the mortar anti-cracking layer 7; the outer side of the mortar anti-cracking layer 7 is provided with a decorative surface layer 8. The anti-cracking layer is matched with the grid cloth, so that the stability of the outer wall surface can be ensured, and the cracking phenomenon is avoided. When the mortar anti-cracking layer is constructed specifically, a layer of mortar is coated firstly, then the grid cloth is laid, and a layer of mortar is coated on the grid cloth.
Referring to the attached drawings, for the connecting structure of the connecting ribs 5 and the steel wire mesh 2, two ends of each connecting rib 5 are clamped on the transverse steel wires of the steel wire mesh frame 2, and the clamping parts are reinforced and fixed in a welding or steel wire rope bundling mode. Although the connecting ribs 5 and the steel wire mesh sheets 2 are finally integrally formed through pouring concrete, the phenomenon of displacement is avoided in order to ensure the stability of the grid structure in the pouring process, and therefore the clamping position is reinforced and fixed.
Referring to the drawings, for the arrangement of the L-shaped plates on the unit plates, the front and back panels of the unit plates 31 are provided with L-shaped grooves 310 corresponding to the L-shaped positioning plates 4, two ends of each L-shaped groove 310 respectively penetrate two sides of the unit plate 31, and the other two sides of each unit plate 31 are provided with positioning grooves 311 corresponding to the outer extension sections of the L-shaped positioning plates of the adjacent unit plates 31. L type recess 310 is as the spacing groove of L type locating plate 4, avoids L type locating plate 4 displacement to appear and influences the stability of whole structure of assembling, and the positioning groove 311 corresponds the plug-in fit with the overhanging end of L type locating plate 4, has further guaranteed the stability of structure.
Referring to the drawings, in order to further ensure the stability of the assembly structure, the extending section of the L-shaped positioning plate 4 is provided with a main positioning hole 40, the positioning groove 311 is correspondingly provided with an auxiliary positioning hole 312, and after assembly, the main positioning hole 40 and the auxiliary positioning hole 312 are provided with the positioning pin 9. The positioning pin is used for limiting the end part of the L-shaped positioning plate, a common pin body can be adopted, and preferably, the positioning pin 9 is an elastic clamping pin with an agnail at the end part. By means of the elasticity and the barb structure, the pin body can be firmly clamped in the auxiliary positioning hole 312, and the stability of the assembling structure is further guaranteed.
Referring to the attached drawings, for the mounting structure of the connecting rib 5, a unit plate center hole 312 for the connecting rib 5 to pass through is formed in the center of the unit plate 31, a positioning plate penetrating hole 41 for the connecting rib 5 to pass through is formed in a corner portion of the L-shaped positioning plate 4, the connecting rib 5 sequentially penetrates through the positioning plate penetrating hole 41 in the outer L-shaped positioning plate 4, the unit plate center hole 312 and the positioning plate penetrating hole 41 in the inner L-shaped positioning plate 4, the middle portion of the connecting rib 5 is a threaded section, the two sides of the unit plate 31 are respectively screwed with the locking nuts 10, and the two locking nuts 10 are respectively screwed and pressed on the L-shaped positioning plates 4 on the two sides. The connecting rib 5 is locked and installed on the L-shaped positioning plates 4 on two sides through two nuts, on one hand, the installation firmness of the L-shaped positioning plates 4 is guaranteed, on the other hand, the extending length of the connecting rib 5 on the inner side and the outer side can be properly adjusted in the screw installation mode, and the site operation is more flexible and convenient.
The construction method of the cast-in-place concrete wall of the steel wire mesh frame composite insulation board comprises the following steps of:
step 1), prefabricating a unit plate 31, an L-shaped positioning plate 4 and intercepting connecting ribs 5, wherein the length and the width of the unit plate 31 are limited to 80-150 CM according to the size of a wall body; the size of the L-shaped positioning plate 4 is set according to the length and the width of the unit plate 31, and the length of the extending section of the L-shaped positioning plate 4 is not less than 15 CM;
step 2) assembling the steel wire mesh frame composite board on a construction site, firstly installing an L-shaped positioning plate 4 and a connecting rib 5 on a unit board 31, and correspondingly clamping adjacent unit boards 31 through clamping grooves respectively to ensure that no gap exists at the splicing part of the unit boards 31 which are adjacent left and right and adjacent up and down; the end parts of the connecting ribs 5 are subjected to on-site bending construction and are reinforced and fixed in a steel wire rope bundling or welding mode, so that the end parts of the connecting ribs 5 are firmly connected with the steel wire mesh sheets 2 on the two sides;
step 3) supporting an inner wall formwork 11 and an outer wall formwork 12, firstly installing angle formworks, carrying out good positioning measures on the upper part and the lower part of the formworks, adding supports when necessary, and ensuring that no hole or gap is left at any corner part to ensure that no slurry leaks at the abutted seam;
step 4), pouring concrete, wherein the continuity of the concrete is kept in the concrete pumping and pouring processes, and layering is reduced; during construction, the vibration rod cannot touch the heat insulation plate and the connecting piece, and tools such as a rubber hammer and the like are adopted to assist in knocking outside the template; when concrete is poured, the balance of concrete pouring speeds of the two sides of the insulation board is controlled, the height difference of concrete grout surfaces of the two sides is observed in time and is strictly controlled within 40 CM;
step 5), immediately coating a curing agent on the concrete on the two sides of the net rack plate after the template is removed or covering within 12 hours, and carrying out moisture preservation and curing; curing the concrete mixed by Portland cement, ordinary Portland cement or slag Portland cement for not less than 7 days, and curing the concrete mixed with the retarding additive for not less than 14 days; during the curing period, watering curing is adopted to keep the concrete in a wet state or plastic film covering curing is adopted to keep the plastic cloth filled with condensed water.
And 6) forming the main wall after the maintenance is finished, and performing anti-cracking layer construction or outer layer veneer construction according to the requirement.
When the main positioning hole 40 and the auxiliary positioning hole 312 are used and the positioning pin 9 is installed, only the positioning groove 311 may be opened when the unit board 31 is prefabricated in step 1, the main positioning hole 40 may be opened when the L-shaped positioning plate 4 is prefabricated, and the auxiliary positioning hole 312 on the positioning groove 311 may be opened in the assembling process. Due to the symmetrical structure of the front and back sides of the unit plate 31, when the unit plate 31 is prefabricated, the auxiliary positioning holes 312 on the front and back sides of the unit plate can be formed at one time by forming through holes. However, since it is difficult to ensure that the pre-formed main positioning hole 40 and the auxiliary positioning hole 312 correspond accurately during assembly, it is preferable to form the auxiliary positioning hole 312 on site, and when forming the auxiliary positioning hole 312 on site, the auxiliary positioning hole 312 is a counter-bore and does not need to be formed as a through-hole.
In summary, the present invention is not limited to the above-described embodiments. The person skilled in the art can make several changes or modifications without departing from the technical solution of the present invention, and the changes or modifications all fall into the protection scope of the present invention.
Claims (10)
1. A cast-in-place concrete wall of a steel wire frame composite insulation board comprises an inner concrete wall (1) and an outer steel wire frame composite board, and is characterized in that the steel wire frame composite board comprises steel wire mesh sheets (2) at two sides and a middle insulation board body (3); the middle heat preservation plate body (3) is formed by assembling a plurality of square unit plates (31), L-shaped positioning plates (4) are symmetrically arranged on the front side and the back side of each unit plate (31), two ends of each L-shaped positioning plate (4) extend out of two side edges of each unit plate (31) respectively and are arranged on the side edges, extending sections of two opposite L-shaped positioning plates (4) form clamping grooves, corner parts of the L-shaped positioning plates (4) are arranged at the central positions of the unit plates (31), connecting ribs (5) are arranged in the centers of the unit plates (31) in a penetrating mode, the middle parts of the connecting ribs (5) penetrate through the centers of the unit plates (31) and the corner parts of the L-shaped positioning plates (4), and two ends of each connecting rib (5) are bent and clamped on the steel wire mesh sheets (2) on two sides respectively.
2. The steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 1, characterized in that the inner steel wire mesh sheets (2) and the inward extending sections of the connecting ribs (5) are cast with the inner concrete wall body (1) as an integral structure, and the outer steel wire mesh sheets (2) and the outward extending sections of the connecting ribs are cast with the inner concrete wall body (1) synchronously to form a concrete protective layer (6).
3. The steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 2, wherein a mortar anti-cracking layer (7) is arranged outside the concrete protection layer (6), and alkali-resistant mesh cloth (71) is pressed into the mortar anti-cracking layer (7); the outer side of the mortar anti-cracking layer (7) is provided with a decorative surface layer (8).
4. The steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 1, wherein two ends of the connecting ribs (5) are clamped on transverse steel wires of the steel wire mesh frame (2), and clamping positions are reinforced and fixed in a mode of welding or bundling steel wire ropes.
5. The steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 1, wherein the front and back panels of the unit plates (31) are provided with L-shaped grooves (310) adapted to the L-shaped positioning plates (4), two ends of each L-shaped groove (310) respectively penetrate through two side edges of each unit plate (31), and the other two side edges of each unit plate (31) are provided with positioning grooves (311) adapted to the extending sections of the L-shaped positioning plates on the adjacent unit plates (31).
6. The steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 5, wherein the extending section of the L-shaped positioning plate (4) is provided with a main positioning hole (40), the positioning groove (311) is correspondingly provided with an auxiliary positioning hole (312), and after assembly, the main positioning hole (40) and the auxiliary positioning hole (312) are provided with a positioning pin (9).
7. The steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 6, wherein the positioning pins (9) are elastic clamping pins with barbs at the end parts.
8. The cast-in-place concrete wall with the steel wire mesh frame composite heat-insulation plate as claimed in claim 1, is characterized in that a unit plate center hole (312) through which a connecting rib (5) penetrates is formed in the center of the unit plate (31), positioning plate penetrating holes (41) through which the connecting rib (5) penetrates are formed in corner portions of the L-shaped positioning plate (4), the connecting rib (5) sequentially penetrates through the positioning plate penetrating holes (41) in the outer L-shaped positioning plate (4), the unit plate center hole (312) and the positioning plate penetrating holes (41) in the inner L-shaped positioning plate (4), the middle of the connecting rib (5) is a threaded section, locking nuts (10) are respectively screwed on two sides of the unit plate (31), and the two locking nuts (10) are respectively screwed and pressed on the L-shaped positioning plates (4) on two sides.
9. A construction method of a steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in any one of claims 1 to 8 is characterized by comprising the following steps:
step 1), prefabricating a unit plate (31), an L-shaped positioning plate (4) and intercepting connecting ribs (5), wherein the length and the width of the unit plate (31) are limited between 80CM and 150CM according to the size of a wall body; the size of the L-shaped positioning plate (4) is set according to the length and the width of the unit plate (31), and the length of the extending section of the L-shaped positioning plate (4) is not less than 15 CM;
step 2) assembling the steel wire mesh frame composite board on a construction site, installing an L-shaped positioning plate (4) and a connecting rib (5) on a unit board (31), and correspondingly clamping adjacent unit boards (31) through clamping grooves respectively to ensure that no gap exists at the splicing part of the unit boards (31) which are adjacent left and right and adjacent up and down; the end parts of the connecting ribs (5) are subjected to on-site bending construction and are reinforced and fixed in a steel wire rope bundling or welding mode, so that the end parts of the connecting ribs (5) are firmly connected with the steel wire mesh sheets (2) on two sides;
step 3) supporting an inner wall formwork (11) and an outer wall formwork (12), firstly installing angle formworks, wherein the upper part and the lower part of each formwork need to be provided with good positioning measures, and additionally supporting is carried out if necessary, no hole or gap is left at any corner part, so that slurry leakage at the abutted seam is avoided;
step 4), pouring concrete, wherein the continuity of the concrete is kept in the concrete pumping and pouring processes, and layering is reduced; during construction, the vibration rod cannot touch the heat insulation plate and the connecting piece, and tools such as a rubber hammer and the like are adopted to assist in knocking outside the template; when concrete is poured, the balance of concrete pouring speeds of the two sides of the insulation board is controlled, the height difference of concrete grout surfaces of the two sides is observed in time and is strictly controlled within 40 CM;
step 5), immediately coating a curing agent on the concrete on the two sides of the net rack plate after the template is removed or covering within 12 hours, and carrying out moisture preservation and curing; curing the concrete mixed by Portland cement, ordinary Portland cement or slag Portland cement for not less than 7 days, and curing the concrete mixed with the retarding additive for not less than 14 days; during the curing period, watering curing is adopted to keep the concrete in a wet state or plastic film covering curing is adopted to keep the plastic cloth filled with condensed water.
And 6) forming the main wall after the maintenance is finished, and performing anti-cracking layer construction or outer layer veneer construction according to the requirement.
10. The construction method of the steel wire mesh frame composite insulation board cast-in-place concrete wall body as claimed in claim 9, wherein when the unit plate (31) as claimed in claim 6 is adopted, only the positioning groove (311) can be formed when the unit plate (31) is prefabricated in the step 1), the auxiliary positioning hole (312) on the positioning groove (311) can be formed in the assembling process, and the main positioning hole (40) is formed when the L-shaped positioning plate (4) is prefabricated.
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| CN202010173867.2A CN111155686A (en) | 2020-03-13 | 2020-03-13 | Steel wire mesh frame composite insulation board cast-in-place concrete wall and construction method thereof |
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| CN202010173867.2A CN111155686A (en) | 2020-03-13 | 2020-03-13 | Steel wire mesh frame composite insulation board cast-in-place concrete wall and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250350A (en) * | 2021-05-25 | 2021-08-13 | 刘广 | Green and environment-friendly heat-insulating wall for building and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250350A (en) * | 2021-05-25 | 2021-08-13 | 刘广 | Green and environment-friendly heat-insulating wall for building and construction method thereof |
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Effective date of registration: 20211220 Address after: 250000 Room 102, unit 2, No. 3, zone 4, Wolong garden, No. 29, Langmaoshan West Road, Shizhong District, Jinan City, Shandong Province Applicant after: Shandong Heliyuan Technology Development Co.,Ltd. Address before: 253000 north side of South Outer Ring Road, Luquantun Town, Wucheng County, Dezhou City, Shandong Province Applicant before: Dezhou Yuanshi Environmental Technology Co.,Ltd. |