CN110905143A - Mechanical spraying construction process for light plastering gypsum - Google Patents
Mechanical spraying construction process for light plastering gypsum Download PDFInfo
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- CN110905143A CN110905143A CN201911229023.9A CN201911229023A CN110905143A CN 110905143 A CN110905143 A CN 110905143A CN 201911229023 A CN201911229023 A CN 201911229023A CN 110905143 A CN110905143 A CN 110905143A
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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
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Abstract
The invention discloses a mechanical spraying construction process of light plastering gypsum, which solves the problem of insufficient performance of the traditional cement mortar by adopting a novel material of the light plastering gypsum, and meets the actual application conditions compared with the prior art, thereby meeting the requirements of construction quality and construction period and saving labor cost and energy. The method comprises the steps of construction preparation, base layer cleaning, paying off and dotting, cake pasting and screeding, light plastering gypsum preparation, plastering construction and picking and cleaning. The invention has scientific and reasonable design and convenient use, is applied to the special construction process of mechanical spraying of light plastering gypsum, can effectively improve the construction efficiency, save a large number of construction periods, reduce the maintenance cost and the like on the premise of ensuring the construction quality, realizes social excellent benefits of energy saving, environmental protection and the like, and is suitable for wide popularization and application.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a mechanical spraying construction process of light plastering gypsum.
Background
The light plastering gypsum is a single-component plastering leveling material prepared by taking industrial by-product gypsum as a cementing material, vitrified micro-beads or expanded perlite as a light aggregate and adding various additives, has the characteristics of early strength, quick hardening, good cohesive force, light weight, micro expansion and the like, improves the construction efficiency of buildings, is widely suitable for plastering the inner walls of the buildings, and can replace cement mortar as a main material for indoor plastering engineering.
The light plastering gypsum in the current market is used as a novel material, and the construction processes are two, wherein one process is manual construction, and the other process is mainly special machine spraying construction. Compared with manual construction, the mechanical spraying construction process can directly carry out plastering on the inner wall surface of various materials without carrying out interface agent treatment on concrete plates, columns, beams and light masonry; meanwhile, the light plastering gypsum for mechanical spraying has natural components and no bad contraction function after plastering and forming; has the function of micro expansion, can prevent the wall from generating fine cracks, has no hollowness or cracks after being used, and is suitable for wide application. However, the mechanical spraying construction process flow of the light plastering gypsum is not perfect at present, the main flow is base layer treatment, construction preparation, mortar stirring, sieving, conveying, spraying, large-area leveling, local leveling and cleaning, and the problems of overlarge technical requirement, harsh requirement on the maintenance condition of a finished product and the like exist in the practical application
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects in the prior art, the invention aims to provide a mechanical spraying construction process for light plastering gypsum, which has the advantages of simple construction process, low labor cost and low dust emission, can fully exert the excellent performance of the light plastering gypsum, reasonably simplifies construction steps and shortens the construction period.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a mechanical spraying construction process of light plastering gypsum comprises the following steps:
step 1, construction preparation: preparing construction materials and construction tools;
step 2, base layer cleaning: cleaning a wall surface to be constructed;
step 3, paying off and dotting: paying off and dotting according to the size of a construction drawing, and controlling square dotting of a room by a wall surface transverse pulling line and a wall surface vertical pulling line;
step 4, cake pasting and reinforcement: carrying out cake sticking and rib punching according to the size and position of the paying-off dotting strictly, and carrying out the next step after the inspection meets the requirement;
step 5, preparing light plastering gypsum: blending under the condition of ensuring that construction appliances are clean and pollution-free, blending according to the proportion of light plastering gypsum to water of 2:1, and preparing into uniform paste in a handing mode, wherein the stirring time is 2-3 min;
step 6, plastering construction: according to the design requirements, uniformly plastering the slurry on a wall by using a plaster board and a spatula at one time, and checking whether hollowing exists or not and timely treating bubbles in the process;
step 7, picking up and cleaning: and the inspection site cleans the left materials, construction tools and the like out of the working surface and cleans the materials, the construction tools and the like completely, and the construction tools are cleaned in time.
Furthermore, the paste-like slurry stirred in the step 5 must be used up before initial setting, the initially set slurry must not be added with water again for use, and the operation time is 45-60 min.
Further, when the surface of the slurry is observed to be slightly dry after the slurry is put on the wall in the step 6, namely surface solidification, a scraping ruler or a scraping plate is used for clinging to the mortar ribs to scrape off redundant slurry, and the slurry is compacted and polished to achieve the purpose that the wall surface is smooth and clean, and the positions of doors, windows, openings and the like are strictly controlled to be matched in size according to design requirements.
In conclusion, the invention has the following beneficial effects:
(1) when the light plastering gypsum is prepared, the light plastering gypsum and water are mixed and stirred for 2-3min to be stirred into uniform paste according to the proportion of 2:1, and the obtained light plastering gypsum needs to be sprayed within 45-60 min.
(2) The light plastering gypsum has the characteristics of bonding performance, micro-expansion function, activity function, breathing function, energy-saving effect, fire resistance and the like, and the reasonable construction process is designed based on the performances, so that the light plastering gypsum can fully play the performances in the using process, and a treatment link before construction is needed for material junctions of different construction interfaces is omitted, on one hand, the construction efficiency is improved, and according to tests, the treatment efficiency can reach more than 400 square meters (the treatment efficiency in the prior art is only about 260 square meters) compared with the prior mechanical spraying construction process; on the other hand, the invention saves the pretreatment link, thereby saving the cost of manpower and material resources and ensuring that the scheduling of constructors is more flexible.
(3) The invention has wonderful conception, scientific and reasonable design and convenient use, is fit for the actual construction conditions in the actual application, greatly improves the construction efficiency under the condition of ensuring the quality, saves a large number of construction periods and reduces the labor cost.
Drawings
FIG. 1 is a flow chart of the steps performed in the present invention.
Detailed Description
The applicant adopts novel material light plastering gypsum in the projects of Chengdu Xin arrangement industry, universities and creation industry gallery squares and the like, applies the mechanical spraying special construction process of the technology to the material, greatly reduces the problems of hollowing and cracking of a plastering layer after being put into use, avoids the common quality problem of vertical cracks at the joint of walls made of different materials, reduces the economic cost and time cost of operation and the later maintenance cost and difficulty, and simultaneously realizes the social excellent benefits of energy conservation, environmental protection and the like.
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in FIG. 1, the process of the present invention is as follows:
step 1, construction preparation: preparing construction materials and construction tools, wherein the construction materials mainly comprise light plastering gypsum (finished bagged material), clean water and mesh cloth; the construction tool mainly includes:
a) instruments for measurement such as a laser level, a laser range finder, an angle square, a running rule, a straight rule, a detection rule and the like;
b) a scraper, a scraper blade plaster plate, a trowel, a water bucket, a plaster bucket, a stirrer and the like;
c) spade, broom, movable scaffold, short ladder wooden stool, empty drum hammer, etc.
Step 2, base layer cleaning: cleaning up dust, garbage and the like on the wall surface to be constructed;
step 3, paying off and dotting: paying off and dotting are carried out strictly according to the size of a construction drawing, and the wall surface dotting needs to be carried out by pulling a transverse line and a vertical line to control the squareness of a room;
step 4, cake pasting and reinforcement: sticking cakes and punching ribs according to the size and the position of a paying-off dotting strictly, checking whether a grid cloth is stuck at the position of a pipeline groove or a structural seam or not, wherein the ash rib is required to be supported on the vertical ground, and performing the next process after the verticality flatness is required to be checked by an actual measurement worker;
step 5, preparing light plastering gypsum: ensure that the construction apparatus begins to modulate under the clean pollution-free condition, follow light plaster strictly: mixing water at a ratio of 2:1, and stirring to obtain paste for 2-3 min. The stirring amount of each time is adjusted according to the amount required by the construction area, so that the stirring amount is not too much for duty and work, and the reference amount of 1cm of the stirring amount needs 8-9kg of the material per square meter. The paste stirred into paste must be used up before initial setting, the slurry which is initially set cannot be added with water for use again, and the reference operation time is 45-60 min; (ii) a
Step 6, plastering construction: according to the design requirements, the mortar board and the spatula are used for uniformly plastering the slurry on the wall at one time, and the detection of hollowing and bubble in the process is carried out in time. When the surface is observed to be slightly dry, namely the surface of the material is solidified, a scraping ruler or a scraping plate is used for clinging to the mortar rib to scrape off redundant slurry, the slurry is compacted and polished, the wall surface is smooth, the door and window opening and other parts are controlled in size according to the design requirements strictly;
step 7, picking up and cleaning: the inspection scene is to clearing up out the working face and clean up with the material, the construction apparatus etc. that will leave over, must accomplish that the work is accomplished the clear on the spot, in time clears up the construction apparatus, makes the guarantee for the construction of next time.
The allowable deviation and inspection method of the measurement data such as the dimension and position of the line releasing and dotting, the perpendicularity and flatness of the gray ribs and the like in the steps 3 and 4 are as follows:
table-check item allowable deviation and checking method
Serial number | Examination item | Tolerance deviation (mm) | Inspection method |
1 | Wall surface-flatness | 0 to 4 | Checking with 2m vertical detection ruler and wedge-shaped clearance gauge |
2 | Wall surface-verticality | 0 to 4 | Checking with 2m vertical detection ruler and wedge-shaped clearance gauge |
3 | Room-division, depth | ±10 | Inspection of infrared and distance measuring instruments |
4 | Room-square | ±10 | Inspection with infrared instrument and 5m measuring tape |
5 | Internal and external corner | ±4 | Inspection of male and female angle square and wedge-shaped clearance gauge |
In the high-temperature period in summer, the surface setting time of the light plastering gypsum is shortened to be within 20 minutes, the plastering slurry is recycled immediately, otherwise, the light plastering gypsum is easy to harden to cause peeling of a hollow shell, the moisture of the high-temperature slurry is easy to be absorbed by a wall base layer to cause too fast volatilization of the moisture, the slurry is lack of the moisture necessary for hydration, so hollowing and cracking are easy to occur, and if the temperature of an operation area exceeds 40 ℃, the wall needs to be watered one day in advance.
When the construction process is implemented, the actual conditions are combined, the conditions of construction difficulty, unsatisfactory effect and the like are not met when each construction step is completed, meanwhile, the workload of each shift can reach more than 400 square meters, the construction efficiency is greatly improved under the condition of ensuring the quality, a large number of construction periods are saved, and the waste of labor force is avoided. The construction process is implemented while indoor environment detection is carried out, and the data value of the detection result is far less than the standard value of the traditional cement mortar mechanical spraying, so the technology has the advantage of environmental protection.
In addition, the required working space in actual construction is relatively small, instruments and equipment are simple, the occupied area is small when the device is stacked on a project construction site, the management is convenient, and the problems of dust pollution, large investment in construction management and the like caused by large-scale use of large-scale mechanical equipment are solved.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (3)
1. A mechanical spraying construction process of light plastering gypsum is characterized by comprising the following steps:
step 1, construction preparation: preparing construction materials and construction tools;
step 2, base layer cleaning: cleaning a wall surface to be constructed;
step 3, paying off and dotting: paying off and dotting according to the size of a construction drawing, and controlling square dotting of a room by a wall surface transverse pulling line and a wall surface vertical pulling line;
step 4, cake pasting and reinforcement: carrying out cake sticking and rib punching according to the size and position of the paying-off dotting strictly, and carrying out the next step after the inspection meets the requirement;
step 5, preparing light plastering gypsum: blending under the condition of ensuring that construction appliances are clean and pollution-free, blending according to the proportion of light plastering gypsum to water of 2:1, and preparing into uniform paste in a handing mode, wherein the stirring time is 2-3 min;
step 6, plastering construction: according to the design requirements, uniformly plastering the slurry on a wall by using a plaster board and a spatula at one time, and checking whether hollowing exists or not and timely treating bubbles in the process;
step 7, picking up and cleaning: and the inspection site cleans the left materials, construction tools and the like out of the working surface and cleans the materials, the construction tools and the like completely, and the construction tools are cleaned in time.
2. The mechanical spraying construction process of light plastering gypsum according to claim 1, characterized in that: the paste-like slurry stirred in the step 5 must be used up before initial setting, the initially set slurry cannot be used by adding water again, and the operation time is 45-60 min.
3. The mechanical spraying construction process of light plastering gypsum according to claim 2, wherein the mechanical spraying construction process comprises the following steps: and 6, after the slurry is put on the wall, observing that the surface of the slurry is slightly dry, namely surface solidification, using a scraping ruler or a scraping plate to cling to the mortar ribs to scrape off redundant slurry, compacting and polishing to ensure that the wall surface is smooth and clean, and controlling the sizes of the door and window openings and other parts to be matched according to the design requirements strictly.
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Citations (4)
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---|---|---|---|---|
GB2450421A (en) * | 2007-06-22 | 2008-12-24 | Mark Phillip Houghton | Drying aid for plaster |
CN103643769A (en) * | 2013-12-26 | 2014-03-19 | 中建八局第四建设有限公司 | Construction technology of wall plastering and wall body |
CN107035085A (en) * | 2017-05-22 | 2017-08-11 | 中城建设有限责任公司 | A kind of indoor wall machine spray gypsum mortar is plastered one-time formed construction method |
CN109025296A (en) * | 2018-08-22 | 2018-12-18 | 上海中绿建材有限公司 | A kind of lightweight plastering gupsum and facing putty integrated construction technique |
-
2019
- 2019-12-04 CN CN201911229023.9A patent/CN110905143A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2450421A (en) * | 2007-06-22 | 2008-12-24 | Mark Phillip Houghton | Drying aid for plaster |
CN103643769A (en) * | 2013-12-26 | 2014-03-19 | 中建八局第四建设有限公司 | Construction technology of wall plastering and wall body |
CN107035085A (en) * | 2017-05-22 | 2017-08-11 | 中城建设有限责任公司 | A kind of indoor wall machine spray gypsum mortar is plastered one-time formed construction method |
CN109025296A (en) * | 2018-08-22 | 2018-12-18 | 上海中绿建材有限公司 | A kind of lightweight plastering gupsum and facing putty integrated construction technique |
Non-Patent Citations (3)
Title |
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廖奇: "浅谈在内墙抹灰工程中轻质抹灰石膏机械化施工", 《建材与装饰》 * |
蒋青青 等: "轻质底层抹灰石膏的性能特点及施工应用技术", 《墙材革新与建筑节能》 * |
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