CN114477869A - Thick-layer leveling material and construction method thereof - Google Patents
Thick-layer leveling material and construction method thereof Download PDFInfo
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- CN114477869A CN114477869A CN202210101551.1A CN202210101551A CN114477869A CN 114477869 A CN114477869 A CN 114477869A CN 202210101551 A CN202210101551 A CN 202210101551A CN 114477869 A CN114477869 A CN 114477869A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/20—Waste materials; Refuse organic from macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- 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
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- 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
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a thick leveling material and a construction method thereof. The thick leveling material comprises a thick leveling bottom layer material and a self-leveling surface layer material. The thick leveling bottom layer material is a penetration heat-preservation sound-insulation board layer formed by light aggregate such as power plant slag (coal slag), sludge ceramsite and the like and self-leveling penetration material or a bi-component dry-mixed light aggregate sound-insulation layer formed by light aggregate and premixed mortar and the like, and the self-leveling surface layer material is gypsum-based self-leveling mortar or cement-based self-leveling mortar. The thick leveling material can be constructed to a thickness of 3-10cm, and has the characteristics of low cost, light weight, sound insulation, good flatness, no cracking, no hollowing and the like compared with the existing gypsum-based or cement-based self-leveling material. The method is suitable for indoor floors with poor flatness and needing thick leveling.
Description
Technical Field
The invention relates to the field of building construction, in particular to a thick-layer leveling material and a construction method thereof.
Technical Field
In the indoor decoration construction process, ground leveling is a very basic construction project, at present, with the requirement of the development of a self-leveling market, the thick-layer self-leveling becomes a trend and is popularized rapidly, the construction thickness of the thick-layer self-leveling material is between 30mm and 80mm, the defect that the traditional cement-based self-leveling cannot be used for the ground with the height difference of more than 1cm is overcome, and the method is suitable for the ground with larger deviation thickness.
The thick-layer self-leveling material includes cement-base thick-layer self-leveling material and gypsum-base thick-layer self-leveling material, and is formed from cement-base or gypsum-base cementing material, aggregate, filler and additive, and can be automatically leveled or slightly spread to make leveling. The bottom slag of the power plant is the slag discharged from the lower part of the burning coal after being burned by a boiler, the bottom slag is generally required to be crushed and cooled by water due to high temperature and then is discharged to an ash storehouse by an ash slag system, the utilization value of the bottom slag is influenced because the bottom slag contains 40 percent or more of water, the bottom slag can only be used as a filler for a long time, firstly, the usage amount of the bottom slag is small, secondly, the price of the bottom slag is low, most of the existing power plants mainly stack the bottom slag in the ash storehouse, not only a large amount of farmlands are occupied, but also the environment is polluted.
Disclosure of Invention
In order to solve the problems, the invention combines the self-leveling material with the solid waste utilization of the power plant slag, utilizes the light porous property of the slag, forms a permeable heat-insulating sound-insulating layer by mixing the power plant slag, the waste polyurethane foam, the sludge ceramsite and other lightweight aggregates with a permeable material or forms a dry-mixed lightweight aggregate by using the power plant slag, the waste polyurethane foam, the sludge ceramsite and other lightweight aggregates with premixed mortar and the like as a leveling bottom layer material, and adopts the self-leveling material as a surface layer. Has the advantages of good integrity, sound insulation and heat insulation.
The invention provides a thick leveling material, which comprises a thick leveling bottom layer material and a self-leveling surface layer material, wherein the thick leveling bottom layer material is a mixture of light aggregate and a self-leveling penetrating material or a mixture of light aggregate and ready-mixed mortar, the self-leveling surface layer material is gypsum-based self-leveling mortar or cement-based self-leveling mortar, and the thick leveling bottom layer material can be a permeable heat preservation sound insulation layer formed by light aggregate such as power plant slag and the self-leveling penetrating material or a dry-mixed light aggregate sound insulation layer formed by light aggregate and the ready-mixed mortar material after construction.
Preferably, the lightweight aggregate is one or more of power plant slag, ceramsite, perlite, waste polyurethane particles and waste polyphenyl foam particles.
Preferably, the ready-mixed mortar comprises cement, refined machine-made sand and an additive, and the strength grade is M15/M20.
Preferably, the self-levelling penetration material is a cement-based self-levelling penetration grout or a gypsum-based self-levelling penetration grout.
Preferably, the lightweight aggregate has a controlled particle size of 3cm or less, an average particle size of 0.5 to 2cm, and a loose bulk density of 780kg/m3。
Preferably, the gypsum-based self-leveling osmotic slurry comprises the following components in parts by mass: 950 portions of 650-fold gypsum, 50-300 portions of heavy calcium powder, 30-50 portions of cement, 400 portions of 300-fold water, 3-6 portions of polycarboxylic acid water reducing agent, 1-3 portions of protein retarder, 0.5-0.8 portion of suspension stabilizer and 1-3 portions of osmotic diffusion agent.
Preferably, the cement-based self-leveling penetrating slurry comprises the following components in parts by mass: 250-350 parts of silicate cement, 500-600 parts of coarse whiting powder, 50-100 parts of high alumina cement or sulfur-aluminum cement, 30-60 parts of gypsum, 1-3 parts of polycarboxylic acid water reducing agent, 1-2 parts of tartaric acid, 0.5-0.8 part of suspension stabilizer and 1-3 parts of osmotic diffusion agent.
Preferably, the gypsum used in the gypsum self-leveling mortar is desulfurized gypsum or phosphogypsum.
Preferably, the penetration diffusant comprises one or more of dioctyl sodium sulfosuccinate and polyether modified trisiloxane, the material can obviously reduce the surface tension of the slurry, can quickly penetrate into the base layer, forms a three-dimensional penetrating structure in the lightweight aggregate, and is solidified into a whole to form the permeable heat-insulating sound-insulating board.
Preferably, the gypsum-based self-leveling mortar comprises the following components in parts by mass: 650-plus-950 parts of gypsum, 50-300 parts of heavy calcium powder, 30-50 parts of cement, 300-plus-400 parts of water, 200-plus-300 parts of fine aggregate, 0.5-1 part of defoamer, 3-6 parts of polycarboxylic acid water reducer, 1-3 parts of protein retarder, 0-3 parts of redispersible latex powder, 1-2 parts of reinforcing agent and 0.5-1 part of suspension stabilizer.
Preferably, the cement-based self-leveling mortar comprises the following components: 350 parts of Portland cement, 50-100 parts of high-alumina cement or sulpho-alumina cement, 450 parts of sand, 30-60 parts of gypsum, 1-3 parts of polycarboxylic acid water reducing agent, 0.5-1.5 parts of defoaming agent, 5-10 parts of redispersible latex powder, 1-2 parts of tartaric acid, 0.4-1 part of lithium carbonate and 0-1 part of stabilizing agent.
Further, a construction method of the thick-layer leveling material is also provided, and the construction method comprises the following steps:
s1, basic layer treatment
Cleaning up the adhesive impurities of the base layer, sprinkling water for wetting, popping up a horizontal control base line, and determining the elevation;
s2, paving a bottom layer material
Uniformly paving and paving the thick leveling bottom layer material-light aggregate, filling up pits and slopes, compacting by using a trowel, scraping flatly, pouring and solidifying infiltration slurry to form an integral infiltration heat-preservation sound-insulation layer or mixing the aggregate and premixed mortar with a proper amount of water, paving, compacting, mechanically polishing and grinding to form a light aggregate concrete layer, controlling the flatness within 1cm, and curing for 1-2 days after construction to carry out the next construction.
S3, pouring the self-flowing plane layer
And pouring the self-leveling surface layer material on the surface of the solidified thick leveling bottom layer material, rolling and pulling by using a defoaming roller to release air, and then automatically leveling to obtain the thick-layer self-leveling floor, wherein the thick-layer self-leveling flatness obtained by the construction of the thick-layer leveling material reaches 3 meters of guiding rule, the height difference is less than 2 millimeters, the cost is only 1/3-1/4 of the existing thick-layer self-leveling material, and a new way for utilizing the slag of the power plant can be developed.
The specific operation details of the step S2 according to the different components of the thick leveling primer layer material are as follows:
when the thick leveling bottom layer material is a mixture of light aggregate and a self-leveling penetrating material, uniformly spreading the mixed light aggregate with the bottom slag of the power plant as a main component, filling pits and slopes, compacting by using a trowel, scraping by using a ruler to obtain the thick leveling bottom layer material, then preparing the self-leveling penetrating material, curing the bottom layer material to form a whole penetrating heat-preservation sound-insulation layer, controlling the flatness to be within 1cm, and curing for 1-8 h after construction to carry out the next construction;
when the thick leveling bottom layer material is a mixture of lightweight aggregate and ready-mixed mortar, the mixture is added with water and mechanically stirred or manually stirred, the mixture is uniformly paved, the paving thickness is slightly higher than the thickness control point by 5-8mm, the polishing machine is driven to a construction operation point where the paving and leveling are carried out, and the polishing machine is used for polishing and lifting the mortar while sprinkling water. And (3) timely filling and leveling the part lower than the horizontal plane by using semi-dry ash by a watering worker in the working gap of the polishing machine, wherein the watering requirement cannot be excessive at one time, the watering is carried out sequentially, the flatness is controlled within 1cm, and the next construction can be carried out after the maintenance for 1-2 days.
The invention has the beneficial effects that: the cost of the existing thick-layer self-leveling material is reduced by taking the furnace bottom slag of the power plant as the backfill material, the construction thickness of the thick leveling material is 3-10cm, and compared with the existing gypsum-based or cement-based self-leveling material, the thick leveling material has the characteristics of low cost, light weight, sound insulation, good flatness, no cracking, no hollowing and the like, and is suitable for indoor floors with poor flatness and needing thick leveling.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments are not indicated by manufacturers, and are conventional products available by purchase
Example 1
The thick leveling material comprises a thick leveling bottom layer material and a self-leveling surface layer material, wherein the thick layer leveling material bottom layer comprises the following components in parts by mass: mixed lightweight aggregate 1.0m composed of power plant slag and waste polyurethane3400kg of premixed mortar and 620kg/m of bulk density of the mixed lightweight aggregate3The ready-mixed mortar grade is M15, the self-leveling surface layer material is cement-based self-leveling mortar, and the cement-based self-leveling mortar comprises the following components: 300 parts of Portland cement, 50 parts of high-alumina cement or sulpho-alumina cement, 300 parts of sand, 30 parts of gypsum, 1 part of polycarboxylic acid water reducing agent, 0.5 part of defoaming agent, 5 parts of redispersible latex powder, 1 part of tartaric acid, 0.4 part of lithium carbonate and 0.5 part of stabilizing agent.
Example 2
The thick leveling material comprises a thick leveling bottom layer material and a self-leveling surface layer material, wherein the thick layer leveling material bottom layer comprises the following components in parts by mass: mixed lightweight aggregate 1.0m composed of slag and sludge ceramsite of power plant3440kg of ready-mixed mortar, and 750kg/m of bulk density of the mixed lightweight aggregate3The premixed mortar grade is M15, the gravity flow plane layer is gypsum gravity flow mortar, and the gypsum-based gravity flow mortar comprises the following components in parts by mass: 950 parts of gypsum, 300 parts of heavy calcium powder, 50 parts of cement, 400 parts of water, 300 parts of fine aggregate, 1 part of defoaming agent, 6 parts of polycarboxylic acid water reducing agent, 3 parts of protein retarder, 3 parts of redispersible latex powder, 2 parts of reinforcing agent and 1 part of suspension stabilizer.
Example 3
The thick-layer leveling material comprises a thick leveling bottom layer material and a self-leveling surface layer material, wherein the thick-layer leveling bottom layer comprises the following components in parts by mass: slag of power plant 1.0m3400kg of self-leveling penetrating material, the particle size of the power plant slag is less than 3cm, and the bulk density is 800kg/m3The self-leveling surface layer material is cement-based self-leveling mortar, and the cement-based self-leveling mortar comprises the following components: 350 parts of Portland cement, 100 parts of high-alumina cement or sulpho-alumina cement, 450 parts of sand, 60 parts of gypsum and polycarboxylic acid3 parts of water aqua, 01.5 parts of defoaming agent, 10 parts of redispersible latex powder, 2 parts of tartaric acid, 1 part of lithium carbonate and 1 part of stabilizer, wherein the self-leveling penetrating material is gypsum-based self-leveling penetrating slurry and comprises the following components in parts by mass: 650 parts of gypsum, 50 parts of heavy calcium powder, 30 parts of cement, 300 parts of water, 3 parts of polycarboxylic acid water reducing agent, 1 part of protein retarder, 0.5 part of suspension stabilizer and 1 part of osmotic diffusion agent.
Example 4
The thick leveling material comprises a thick leveling bottom layer material and a self-leveling surface layer material, wherein the thick layer leveling material bottom layer comprises the following components in parts by mass: mixed lightweight aggregate 1.0m composed of slag and sludge ceramsite of power plant3440kg of self-leveling penetrating material, and 750kg/m of bulk density of the mixed lightweight aggregate3The self-leveling layer is gypsum self-leveling mortar, and the gypsum-based self-leveling mortar comprises the following components in parts by mass: 650 parts of gypsum, 50 parts of heavy calcium powder, 30 parts of cement, 300 parts of water, 200 parts of fine aggregate, 0.5 part of defoaming agent, 3 parts of polycarboxylic acid water reducing agent, 1 part of protein retarder, 0.5 part of redispersible latex powder, 1 part of reinforcing agent and 0.5 part of suspension stabilizer, wherein the self-leveling penetrating material is cement-based self-leveling penetrating slurry which comprises the following components in parts by mass: 250 parts of portland cement, 600 parts of heavy calcium powder, 50 parts of high-alumina cement or sulpho-alumina cement, 60 parts of gypsum, 1 part of polycarboxylic acid water reducing agent, 1 part of tartaric acid, 0.8 part of suspension stabilizer and 3 parts of osmotic diffusion agent.
Example 5
A construction method of a thick leveling material comprises the following steps:
s1, basic layer treatment
Cleaning up the adhesive impurities of the base layer, sprinkling water for wetting, popping up a horizontal control base line, and determining the elevation;
s2, paving a bottom layer material
And (3) adding water into 11 bags (40kg bags) of the ready-mixed mortar and 20 bags (50L bags) of the lightweight aggregate, and uniformly mixing to obtain the lightweight mixture, wherein the slump is not more than 30 mm.
The spreading thickness is strictly controlled according to the height of the ash cake during material distribution, the material is strictly prevented from being excessively thick, and the material is spread by using an iron shovel firstly during material distribution.
After the material is distributed, the concrete is leveled by using a 2.5 m aluminum alloy scraping bar according to the ash cake, and then the concrete is preliminarily leveled by using an iron plate or smoothed by using a mechanical smoothing machine.
The parts which cannot be polished by the polishing machine, such as corners, need to be manually treated. After the first approximate grinding, manually repairing local uneven parts by special workers, and manually repairing and trimming reserved groove parts; for more repaired and aligned rooms, the polisher needs to perform a second polishing process.
And (3) sealing the room in time after the construction is finished, and moisturizing and maintaining in time after the ground surface layer mortar is condensed, wherein the maintaining time is not less than 7 d.
S3, pouring the gypsum-based self-flowing plane layer
And (3) brushing a bottom sealing interface agent on the surface of the constructed thick leveling bottom layer material, pouring a gypsum self-flowing plane layer, rolling and pulling by using a defoaming roller to release air, and then automatically leveling and controlling the thickness to be 1 cm.
And (5) obtaining the thick-layer leveling terrace material, and paying attention to the protection of the finished product after construction.
Example 6
A construction method of a thick leveling material comprises the following steps:
s1, basic layer treatment
Cleaning the adhesive sundries on the base layer, and sprinkling water for wetting. Popping up a horizontal control base line, and determining an elevation;
s2, paving a bottom layer material
Uniformly spreading the light aggregate on the base layer, controlling the thickness not to exceed the thickness of the ash cake, and leveling by using a scraping ruler.
The self-leveling permeating material is uniformly poured on the surface and uniformly permeated into the filling material, and in order to accelerate permeation, the flat plate can be used for assisting in gently beating the slurry. Because the filling material is loose and filled in the gap, the gypsum self-leveling slurry can permeate into the filling material to form an inserting structure, and finally the filling material is solidified into a whole. The amount of the self-leveling slurry is controlled, and the flatness is less than 5 mm at the height difference of a 3 m guiding rule.
S3, pouring a cement-based self-flowing plane layer
After the bottom layer is solidified, a cement-based self-leveling surface layer material is directly poured, and after air is released by rolling and pulling of a defoaming roller, the self-leveling is carried out to control the thickness to be 1 cm.
And (5) obtaining the thick-layer leveling terrace material, and paying attention to the protection of the finished product after construction.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. The thick leveling material is characterized by comprising a thick leveling bottom layer material and a self-leveling surface layer material, wherein the thick leveling bottom layer material is a mixture of a lightweight aggregate and a self-leveling penetrating material or a mixture of the lightweight aggregate and ready-mixed mortar, and the self-leveling surface layer material is gypsum-based self-leveling mortar or cement-based self-leveling mortar.
2. The thick leveling material of claim 1, wherein the lightweight aggregate is one or more of power plant slag, sludge ceramsite, perlite, waste polyurethane particles and waste polyphenyl foam particles.
3. The thick leveling material according to claim 2, wherein the lightweight aggregate has an average particle size of 0.5-2cm and a loose bulk density of 780kg/m3。
4. The thick leveling material of claim 1, wherein the ready mixed mortar comprises cement, refiner's sand, and additives.
5. The thick leveling material of claim 1, wherein the self-leveling permeating material is a cement-based self-leveling permeating slurry or a gypsum-based self-leveling permeating slurry.
6. The thick leveling material according to claim 5, wherein the gypsum-based self-leveling penetrating slurry comprises the following components in parts by mass: 650-fold sand-containing 950 parts of desulfurized gypsum or phosphogypsum, 50-300 parts of heavy calcium powder, 30-50 parts of cement, 300-fold sand-containing 400 parts of water, 3-6 parts of polycarboxylic acid water reducing agent, 1-3 parts of protein retarder, 0.5-0.8 part of suspension stabilizer and 1-3 parts of osmotic diffusion agent.
7. The thick leveling material of claim 5, wherein the cement-based self-leveling penetrating slurry comprises the following components in parts by mass: 250-350 parts of Portland cement, 500-600 parts of coarse whiting powder, 50-100 parts of high-alumina cement or sulpho-alumina cement, 30-60 parts of gypsum, 1-3 parts of polycarboxylic acid water reducing agent, 1-2 parts of tartaric acid, 0.5-0.8 part of suspension stabilizer and 1-3 parts of osmotic diffusion agent.
8. The thick leveling material according to claim 1, wherein the gypsum-based self-leveling mortar comprises the following components in parts by mass: 650-plus-950 parts of gypsum, 50-300 parts of heavy calcium powder, 30-50 parts of cement, 300-plus-400 parts of water, 200-plus-300 parts of fine aggregate, 0.5-1 part of defoamer, 3-6 parts of polycarboxylic acid water reducer, 1-3 parts of protein retarder, 1-3 parts of redispersible latex powder, 1-2 parts of reinforcing agent and 0.5-1 part of suspension stabilizer.
9. The thick leveling material of claim 1, wherein the cement-based self-leveling mortar comprises the following components: 350 parts of Portland cement, 50-100 parts of high-alumina cement or sulpho-alumina cement, 450 parts of sand, 30-60 parts of gypsum, 1-3 parts of polycarboxylic acid water reducing agent, 0.5-1.5 parts of defoaming agent, 5-10 parts of redispersible latex powder, 1-2 parts of tartaric acid, 0.4-1 part of lithium carbonate and 0.5-1 part of stabilizing agent, and 300 parts of 200 parts of water.
10. A method for constructing a thick-layer leveling material according to any one of claims 1 to 9, comprising the following steps:
s1, basic layer treatment
Cleaning up the adhesive impurities of the base layer, sprinkling water for wetting, popping up a horizontal control base line, and determining the elevation;
s2, paving a bottom layer material
Uniformly paving and paving the thick leveling bottom layer material-light aggregate, filling up pits and slopes, compacting by using a trowel, scraping flatly, pouring and solidifying infiltration slurry to form an integral infiltration heat-preservation sound-insulation layer or mixing the aggregate and premixed mortar with a proper amount of water, paving, compacting, mechanically polishing and grinding to form a light aggregate concrete layer, controlling the flatness within 1cm, and curing for 1-2 days after construction to carry out the next construction.
S3, pouring the self-flowing plane layer
And pouring the self-leveling surface layer material on the surface of the solidified thick leveling bottom layer material, rolling and pulling by using a defoaming roller to release air, and then automatically leveling to obtain the thick-layer self-leveling floor.
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