CN113863598B - Anti-cracking plastering construction method for wall surface slotting - Google Patents
Anti-cracking plastering construction method for wall surface slotting Download PDFInfo
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- CN113863598B CN113863598B CN202111257119.3A CN202111257119A CN113863598B CN 113863598 B CN113863598 B CN 113863598B CN 202111257119 A CN202111257119 A CN 202111257119A CN 113863598 B CN113863598 B CN 113863598B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
- E04F13/04—Bases for plaster
- E04F13/047—Plaster carrying meshes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a cracking-proof plastering construction method for wall surface slotting, which comprises the following steps of 1) forming a pipeline slot on a wall surface; 2) forming a plastering groove; 3) installing a pipeline; 4) carrying out base layer treatment; carrying out base layer treatment on the groove wall of the pipe line groove and the groove wall of the plastering groove; 5) smearing a micro-expansion cement mortar layer; 6) hanging a reinforcing net; 7) coating a bottom layer mortar layer; 8) coating a bottom putty layer; 9) fully hanging glass fiber gridding cloth; 10) and (5) coating a surface putty layer and maintaining. The integrity is good, the construction is convenient, and the anti-cracking and anti-hollowing performance is good.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a cracking-proof plastering construction method for wall surface slotting.
Background
In the building field, whether in the finish decoration of houses or in the construction process of house building, the grooving and piping of a wall body can be involved, the grooving position of the wall surface hydroelectric pipeline in the prior art is very easy to crack after plastering and repairing the groove, and the main reason is that constructors do not construct according to relevant regulations, regulations and unreasonable construction.
Mainly comprises the following aspects:
(1) the treatment of the base layer before plastering is not thorough; (2) the base layer is not watered thoroughly in advance; (3) the surface of the concrete is not subjected to chiseling treatment or is not standardized; (4) the surface treatment of the building blocks is not standard; (5) the mortar mixing proportion is not tightly controlled; (6) the mortar at the scaffold eyes, the junction box and the electric wire tube is not full; (7) the bottom leveling layer survives once, and the plastering is too thick or too thin; (8) the water spraying maintenance is not followed after the plastering; (9) overnight ash, etc. was used.
Chinese patent CN206655354U discloses an anti-hollowing wall body structure, including the basic unit wall body, be equipped with the fluting pipeline on the basic unit wall body, the outside of basic unit wall body is spread and is hung a plurality of hot-galvanize and is welded the wire net, and the handing-over department of adjacent hot-galvanize and is welded the wire net fixes in the both sides of fluting pipeline through the mode that penetrates nail and add the iron sheet, and self-heating hot-galvanize welds the wire net and outwards is equipped with mortar screed-coat, anti-crack mortar layer and middle plastering layer in proper order, middle plastering layer is full of and is spread there is alkali-resisting glass fiber net check cloth, alkali-resisting glass fiber net check cloth is outer to be painted there is veneer plastering layer. The utility model discloses simple structure, the construction is rapid, and the shaping is of high quality, and the wall body is difficult for appearing the large tracts of land hollowing or the phenomenon of ftractureing, has significantly reduced subsequent rework maintenance, and economic benefits is better.
Although the construction process flow is standardized to a certain extent in the prior art, the phenomena of large-area hollowing and cracking of the wall body are prevented, the steel wire mesh is laid close to the base wall body, the anti-cracking mortar layer is laid on the outer side, the synergistic effect of the steel wire mesh and the anti-cracking mortar layer in the anti-cracking aspect is poor, the utilization rate of the performance of the steel wire mesh is poor, the integrity is poor, and the anti-cracking performance is not ideal.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problems to be solved by the invention are as follows: the construction method for the crack-resistant plastering after wall surface grooving has the advantages of good integrity, convenient construction and good crack-resistant and hollowing-resistant performance.
In order to solve the technical problems, the invention adopts the following technical scheme:
a construction method of crack-proof plastering for wall surface slotting comprises the following steps,
1) a wall surface is provided with a pipeline groove; determining the position of a pipeline groove on the wall surface, popping up a positioning line, and forming the pipeline groove along the positioning line, wherein the section of the pipeline groove is in an inner splayed shape, and the width of the notch of the pipeline groove is smaller than the width of the bottom of the pipeline groove;
2) arranging a plastering groove; plastering grooves are formed in the wall surfaces on the two sides of the pipeline groove, the section of each plastering groove is rectangular, and the plastering grooves are communicated with the pipeline groove;
3) installing a pipeline; laying pipes/wires in the pipe chase, and fixing the pipes/wires by using pipe clamps;
4) processing a base layer; carrying out base layer treatment on the groove wall of the pipe line groove and the groove wall of the plastering groove;
5) smearing a micro-expansion cement mortar layer; smearing a micro-expansion cement mortar layer in the pipeline groove;
6) hanging a reinforcing net; paving and hanging a galvanized steel wire reinforcing net at the bottom of the plastering groove;
7) coating a bottom layer mortar layer; coating a bottom layer mortar layer on the outer side of the reinforcing mesh;
8) coating a bottom putty layer; coating a bottom putty layer on the surface of the bottom mortar layer;
9) fully hanging glass fiber gridding cloth; paving and hanging glass fiber gridding cloth on the surface of the bottom putty layer;
10) coating a surface putty layer and maintaining; and (4) coating a surface putty layer on the outer side of the glass fiber mesh fabric, and maintaining.
Further, the depth of the pipe chase is more than 2 times of the diameter of the laid pipeline, and the vertical distance between the pipe wall of the pipe/line and the notch is more than 20 mm.
Furthermore, the plastering grooves are symmetrically distributed on two sides of the pipeline groove, and the width of the plastering groove is more than or equal to 300 mm.
Furthermore, the micro-expansion cement mortar layer is coated in a layered mode, after the coating is finished, slurry is thrown and roughened, and the surface of the micro-expansion cement mortar layer is lower than the bottom plane of the plastering groove.
Furthermore, the reinforcing net is fully laid at the bottom of the plastering groove, the two sides of the reinforcing net are positioned in the plastering groove, and a gap is formed between the inner side of the reinforcing net and the surface of the micro-expansion cement mortar layer.
Furthermore, when the bottom mortar layer is coated, pressure is applied to the direction vertical to the wall surface, the middle part of the bottom mortar layer extends into the pipeline groove, and the bottom mortar layer penetrates through the reinforcing net and then is bonded with the surface of the micro-expansion cement mortar layer, so that the section of the bottom mortar layer forms a convex structure.
Furthermore, the surface of the bottom layer mortar layer after being coated is lower than the wall surface.
Further, when the bottom putty layer is coated, the surface of the bottom mortar layer is scraped.
Furthermore, the surface of the surface putty layer is flush with the wall surface.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the inner splayed pipeline chase and simultaneously adopting the cement mixed mortar added with the micro-expanding agent to prepare the micro-expanded cement mortar layer to fill the pipeline chase, the shrinkage of cement can be well counteracted, the internal stress in the pipeline chase is reduced, and the cracking is prevented. Furthermore, by arranging plastering grooves on two sides of the pipeline chase and paving the steel wire reinforcing net in the plastering grooves, when the bottom mortar layer is plastered, the bottom mortar can penetrate through a part of the reinforcing net to enter the splayed pipeline chase to be bonded with the micro-expansion cement mortar layer, and the convex bottom mortar layer formed by the steel wire reinforcing net is matched with the convex bottom mortar layer formed by the side wall of the pipeline chase, so that the characteristic of high tensile strength of the reinforcing net is exerted to the maximum extent, and the cracking caused by the expansion or contraction of the mortar in the pipeline chase is effectively prevented. The plastering groove has a large outward expansion range and a better anti-cracking effect, and meanwhile, when putty is smeared on the outer side, the glass fiber mesh cloth is paved again for secondary reinforcement, so that the anti-cracking performance is further improved. Meanwhile, by arranging the plastering groove, the integrity is good after the groove is supplemented, the leveling is facilitated, each layer of mortar has reasonable plastering thickness, and the anti-cracking and anti-hollowing effects are better.
Drawings
FIG. 1 is a construction flow chart of the present invention;
FIG. 2 is a schematic view of a line chase after completion of the inventive construction;
in the figure, 1 pipeline groove, 2 plastering grooves, 3 pipelines, 4 micro-expansion cement mortar layers, 5 reinforcing nets, 6 bottom mortar layers, 7 bottom putty layers, 8 glass fiber gridding cloth and 9 surface putty layers.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example (b):
as shown in fig. 1-2, a method for constructing a crack-proof plaster on a wall surface, comprising the following steps,
1) the wall surface is provided with a pipeline groove 1. Determining the position of a pipeline groove 1 on the wall surface, snapping a line, and arranging the pipeline groove 1 on the wall surface by using a groove cutting machine, wherein the section of the pipeline groove 1 is in a shape of Chinese character 'ba', the width of the groove opening is smaller than that of the groove bottom, and the depth of the pipeline groove 1 is at least 2 times of the pipe diameter of a hydroelectric pipeline 3 to be laid, so as to ensure that the thickness of a plastering layer outside the pipe is larger than 20 mm.
2) A plastering groove 2 is arranged. The wall of 1 notch both sides of pipeline casing is cut, picks and beats, cuts out a section shape and is the groove 2 that plasters of rectangle, and wherein, the width more than or equal to 300mm of the groove 2 that plasters, 2 symmetric distribution in 1 both sides of pipeline casing in the groove of plastering.
3) The pipeline 3 is installed. The pipeline 3 is laid in the pipeline chase 1 and fixed by a pipe clamp.
4) And (6) processing a base layer. After the pipeline 3 is installed, the surfaces of the pipeline groove 1 and the plastering groove 2 are subjected to base layer treatment.
Firstly, ash residues on a base layer are removed, a special interface agent is used for processing, and the base layer is cleaned by clean water after being removed. The basic layer brick wall should be moistened in advance, the wall surface to be plastered should be moistened 2d in advance by sprinkling water, the moistening depth is not less than 50mm, and the phenomenon that plastering is carried out along with moistening or completely without moistening is avoided. The polymer cement mortar or other interface treating agents are brushed or sprayed on the base layer to form a brushed surface, so that the brushed surface is solidified on the smooth surface of the base layer and is preferably kept immovable by hand. The napped area is not less than 95% of the surface area of the base layer. Meanwhile, the quality inspection and acceptance of galling are enhanced.
When the wall surface is wet, the surface of the masonry is wetted by spraying water by a sprayer, so that the base layer absorbs water uniformly; the water content of the common concrete small hollow masonry and the light aggregate concrete small hollow masonry is preferably controlled to be 5% -8%, and water cannot be directly sprayed by using a water pipe.
5) And smearing a micro-expansion cement mortar layer 4. And (3) coating micro-expansion cement mixing mortar in layers in the pipeline groove 1 for groove supplement, wherein the thickness of the micro-expansion cement mortar layer 4 after trowelling is smaller than the depth of the pipeline groove 1, and performing slurry throwing and galling treatment on the surface of the micro-expansion cement mortar layer 4. The micro-expansion cement is prepared by adding a certain amount of expanding agent into common cement, so that the concrete can expand to a certain extent under the action of the expanding agent during hydration, thereby making up for the shrinkage of the concrete, and achieving the purposes of preventing and treating concrete cracks and improving the performance of the concrete. The cement expanding agent is a chemical additive, and is added into cement, when the cement is set and hardened, it expands with its volume, and can compensate shrinkage and stretch reinforcing bar to produce prestress and fully fill cement gap. In fact, the cement expanding agent is also called cement foaming agent because it uses light metal (mainly aluminum powder, iron powder, aluminum powder, etc. are used in recent years) to react with alkali cement to generate hydrogen gas, thereby expanding the volume of cement and improving the strength of cement. The above are all the prior art, and are not described in detail.
6) Hanging a reinforcing net 5. And a galvanized steel wire reinforcing net 5 with the width of 300mm and the thickness of 0.8mm is fully hung and paved at the bottom of the plastering groove 2, so that both sides of the reinforcing net 5 are positioned in the plastering groove 2, and a gap is reserved between the reinforcing net 5 and the surface of the micro-expansion cement mortar layer 4.
7) And coating a bottom mortar layer 6.
And (3) coating a bottom mortar layer 6 on the outer side of the reinforcing mesh 5 of the plastering groove 2, firstly coating 15 mortar with the thickness of 7mm for rendering and brushing, and then coating 15 mortar with the thickness of 6mm for subsequent coating. When plastering the position of the pipeline chute 1, forcibly compacting to extrude mortar into small gaps of the reinforcing mesh 5, partially penetrating through the reinforcing mesh 5 to extrude into gaps between the micro-expansion cement mortar layer 4 and the reinforcing mesh 5, then strickling, straightening, rubbing with a wood trowel, and then comprehensively checking whether the bottom mortar is flat or not to enable the section shape of the bottom mortar layer 6 to be overall in a convex shape, wherein the thickness of the bottom mortar in the plastering chute 2 is smaller than that of the plastering chute 2.
8) And coating a bottom putty layer 7. And coating a bottom putty layer 7 on the surface of the bottom mortar layer 6.
9) And fully hanging glass fiber mesh cloth 8. And the surface of the bottom putty layer 7 is fully hung with a glass fiber mesh cloth 8. The glass fiber mesh fabric is a glass fiber mesh fabric, and is prepared by taking a glass fiber woven fabric as a base material and soaking the base material in a high-molecular emulsion-resistant coating. Therefore, the high-strength heat-insulating waterproof paint has good alkali resistance, flexibility and high tensile resistance in the warp and weft directions, and can be widely used for heat insulation, water resistance, fire resistance, crack resistance and the like of inner and outer walls of buildings. The glass fiber mesh cloth is mainly alkali-resistant glass fiber mesh cloth, is formed by twisting medium-alkali-free glass fiber yarns (the main component is silicate and has good chemical stability) through a special tissue structure, namely a gauze tissue, and then is subjected to high-temperature heat setting treatment such as alkali resistance, a reinforcing agent and the like.
10) And (3) coating a surface putty layer 9. And (3) coating surface layer putty on the outer side of the glass fiber gridding cloth 8, filling the plastering groove 2 to enable the notch of the plastering groove 2 to be flush with the wall surface, and finally maintaining. And (4) spraying water for curing in time after the surface layer is initially set, wherein the curing time is not less than 5 days.
According to the invention, the pipeline groove is internally splayed, and the cement mixed mortar layer added with the micro-expanding agent is prepared from the cement mixed mortar to fill the pipeline groove, so that the shrinkage of cement can be well counteracted, the internal stress in the pipeline groove is reduced, and cracking is prevented. Further, through seting up the plastering groove in the wall chase both sides to lay the steel wire reinforcing mat in the plastering groove, when smearing the bottom mortar layer, the bottom mortar can pass the reinforcing mat partly and get into in being the wall chase of splayed and bond with little inflation cement mortar layer, rely on the bracket form support of wall formation of wall chase side, the convex character form bottom mortar layer that the cooperation steel wire reinforcing mat formed, furthest's performance the characteristics that the tensile strength of reinforcing mat is big, the effectual fracture that mortar expansion or shrink arouse in the wall chase has been prevented. The plastering groove has a large outward expansion range and a better anti-cracking effect, and meanwhile, when putty is smeared on the outer side, the glass fiber gridding cloth is paved again for secondary reinforcement, so that the anti-cracking performance is further improved. Meanwhile, by arranging the plastering groove, the integrity is good after the groove is supplemented, the leveling is facilitated, each layer of mortar has reasonable plastering thickness, and the anti-cracking and anti-hollowing effects are better.
It should be noted that, although the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, the applicant has described the technical solutions of the present invention in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the technical solutions are covered by the claims of the present invention.
Claims (9)
1. A construction method of crack-proof plastering for wall surface slotting is characterized by comprising the following steps,
1) a wall surface is provided with a pipeline groove; determining the position of a pipeline groove on a wall surface, popping up a positioning line, and forming the pipeline groove along the positioning line, wherein the section of the pipeline groove is in an inner splayed shape, and the width of a notch of the pipeline groove is smaller than that of the bottom of the pipeline groove;
2) arranging a plastering groove; plastering grooves are formed in the wall surfaces on the two sides of the pipeline groove, the section of each plastering groove is rectangular, and the plastering grooves are communicated with the pipeline groove;
3) installing a pipeline; laying pipes/wires in the pipe chase, and fixing the pipes/wires by using a pipe clamp;
4) processing a base layer; carrying out base layer treatment on the groove wall of the pipeline groove and the groove wall of the plastering groove;
5) smearing a micro-expansion cement mortar layer; smearing a micro-expansion cement mortar layer in the pipeline groove;
6) hanging a reinforcing net; paving and hanging a galvanized steel wire reinforcing net at the bottom of the plastering groove;
7) coating a bottom layer mortar layer; coating a bottom layer mortar layer on the outer side of the reinforcing mesh;
8) coating a bottom putty layer; coating a bottom putty layer on the surface of the bottom mortar layer;
9) fully hanging glass fiber mesh cloth; paving and hanging glass fiber gridding cloth on the surface of the bottom putty layer;
10) coating a surface putty layer and maintaining; and (4) coating a surface putty layer on the outer side of the glass fiber mesh fabric, and maintaining.
2. The method for constructing the crack-proof plaster on the wall surface of the slot of claim 1, wherein the depth of the pipeline slot is more than 2 times of the diameter of the laid pipeline, and the vertical distance between the wall of the pipeline/line and the slot opening is more than 20 mm.
3. The construction method of crack-proof plastering for wall grooving of claim 1, wherein the plastering grooves are symmetrically distributed on both sides of the wall chase and have a width of 300mm or more.
4. The method for constructing the crack-proof plastering for the wall surface slotting of claim 1, wherein the micro-expansion cement mortar layer is applied layer by layer, after the application is finished, the mortar is thrown and roughened, and the surface of the micro-expansion cement mortar layer is lower than the bottom plane of the plastering groove.
5. The method of claim 1, wherein the reinforcing mesh is fully laid on the bottom of the plastering groove, both sides of the reinforcing mesh are located in the plastering groove, and a gap is formed between the inner side of the reinforcing mesh and the surface of the micro-expansive cement mortar layer.
6. The method for plastering and preventing wall surface from cracking of a slot according to claim 1, wherein when the bottom mortar layer is applied, pressure is applied in a direction perpendicular to the wall surface, so that the middle part of the bottom mortar layer extends into the pipeline slot, passes through the reinforcing mesh and is adhered to the surface of the micro-expansion cement mortar layer, and the cross section of the bottom mortar layer forms a convex structure.
7. A method for constructing a wall surface with a slot and a crack-proof plaster as claimed in claim 1, wherein the surface of the bottom mortar layer after the coating is finished is lower than the wall surface.
8. The method of claim 1, wherein the mortar layer is applied to the surface of the substrate while the putty layer is being applied.
9. The method for constructing wall surface slotting crack-proof plastering of claim 1, wherein the surface of the surface putty layer is flush with the wall surface.
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| CN202111257119.3A CN113863598B (en) | 2021-10-27 | 2021-10-27 | Anti-cracking plastering construction method for wall surface slotting |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006009274A (en) * | 2004-06-22 | 2006-01-12 | Panahome Corp | Outer wall repairing method |
| CN204266505U (en) * | 2014-09-25 | 2015-04-15 | 东易日盛家居装饰集团股份有限公司 | A kind of fluting metope cracking structure |
| CN108193784A (en) * | 2017-12-29 | 2018-06-22 | 上海聚通装饰集团有限公司 | A kind of upper and lower conduit slot antiseep technique |
| CN108193877A (en) * | 2017-12-29 | 2018-06-22 | 上海聚通装饰集团有限公司 | A kind of neat comb slot repairing chap preventing process |
| CN208202211U (en) * | 2018-05-06 | 2018-12-07 | 山西一建集团有限公司 | Complete facing fills the processing structure of Sunken wire tube after wall |
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2021
- 2021-10-27 CN CN202111257119.3A patent/CN113863598B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006009274A (en) * | 2004-06-22 | 2006-01-12 | Panahome Corp | Outer wall repairing method |
| CN204266505U (en) * | 2014-09-25 | 2015-04-15 | 东易日盛家居装饰集团股份有限公司 | A kind of fluting metope cracking structure |
| CN108193784A (en) * | 2017-12-29 | 2018-06-22 | 上海聚通装饰集团有限公司 | A kind of upper and lower conduit slot antiseep technique |
| CN108193877A (en) * | 2017-12-29 | 2018-06-22 | 上海聚通装饰集团有限公司 | A kind of neat comb slot repairing chap preventing process |
| CN208202211U (en) * | 2018-05-06 | 2018-12-07 | 山西一建集团有限公司 | Complete facing fills the processing structure of Sunken wire tube after wall |
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| CN113863598A (en) | 2021-12-31 |
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