CN115557772A - Plaster material for heat-insulating layer plastering - Google Patents
Plaster material for heat-insulating layer plastering Download PDFInfo
- Publication number
- CN115557772A CN115557772A CN202211403452.5A CN202211403452A CN115557772A CN 115557772 A CN115557772 A CN 115557772A CN 202211403452 A CN202211403452 A CN 202211403452A CN 115557772 A CN115557772 A CN 115557772A
- Authority
- CN
- China
- Prior art keywords
- heat
- insulating layer
- gypsum
- equal
- layer plastering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 35
- 239000011505 plaster Substances 0.000 title description 4
- 239000010440 gypsum Substances 0.000 claims abstract description 70
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 70
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 10
- 229920002472 Starch Polymers 0.000 claims abstract description 8
- 239000004816 latex Substances 0.000 claims abstract description 8
- 229920000126 latex Polymers 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 239000008107 starch Substances 0.000 claims abstract description 8
- 235000019698 starch Nutrition 0.000 claims abstract description 8
- 239000004743 Polypropylene Substances 0.000 claims abstract description 7
- -1 polypropylene Polymers 0.000 claims abstract description 7
- 229920001155 polypropylene Polymers 0.000 claims abstract description 7
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 6
- 239000010451 perlite Substances 0.000 claims abstract description 6
- 235000019362 perlite Nutrition 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical group C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 229940095564 anhydrous calcium sulfate Drugs 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 2
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 2
- 230000010220 ion permeability Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000010276 construction Methods 0.000 abstract description 12
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 238000007665 sagging Methods 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 24
- 239000002002 slurry Substances 0.000 description 11
- 238000003756 stirring Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920000881 Modified starch Polymers 0.000 description 2
- 239000004368 Modified starch Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 235000019426 modified starch Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention provides a heat-insulating layer plastering gypsum material, which comprises the following components in percentage by weight: 700-750 parts of gypsum, 250-300 parts of expanded perlite, 1.0-1.5 parts of polypropylene fiber, 1.0-1.5 parts of gypsum retarder, 0.5-1.0 part of cellulose ether, 8-12 parts of redispersible latex powder, 0.2-0.3 part of starch ether, 0.15-0.25 part of air entraining agent and 600-800 parts of water. The invention adopts the redispersible latex powder, and can increase the adhesive property of the material on the basis of meeting the requirements of strength and construction performance; the starch ether is added, so that the anti-sagging performance of the plastering gypsum can be improved on the basis of meeting the basic performance, and the plastering gypsum is prevented from falling when the construction thickness is larger; the adopted air entraining agent can increase micro closed bubbles in the material and improve the heat preservation performance.
Description
Technical Field
The invention belongs to the technical field of plastering gypsum, and particularly relates to a heat-insulating layer plastering gypsum material.
Background
In recent years, a large amount of novel wall materials such as aerated concrete blocks, concrete hollow blocks and various prefabricated slats are used, and most of plastering of the wall materials still adopts the method of stirring cement mortar and mixed mortar on site, so that the bonding strength of a plastering layer and the wall is low, and a plurality of quality problems such as cracking, shelling and even peeling occur, and the building apparent quality and the use function are seriously influenced. Along with the rapid development of gypsum products, the heat-insulating layer plastering gypsum products are suitable for plastering indoor walls and ceilings of industrial and civil buildings due to the characteristics of excellent construction performance, good caking property and the like, effectively solve the common quality problems of hollowing, cracking, falling and the like in plastering engineering, and become an ideal substitute product of cement mortar and mixed mortar; and simultaneously, the problem of comprehensive utilization of industrial by-product gypsum is basically solved. Along with the rising of the prices of cement, yellow sand and manpower, the plastering gypsum has more and more obvious comprehensive advantages. The plastering gypsum replaces cement mortar, overcomes the defect that the traditional process is difficult to solve, saves construction cost, controls later maintenance and other expenses, improves construction quality, meets various design and construction standard requirements, and becomes the inevitable choice for plastering the inner wall of the building.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a plaster material for heat-insulating layer plastering.
In order to achieve the above purpose, the solution of the invention is as follows:
a heat-insulating layer plastering gypsum material comprises the following components in parts by weight:
preferably, the gypsum is selected from the group consisting of hemihydrate gypsum (CaSO) 4 .1/2H 2 O) or type II anhydrous calcium sulfate (type II anhydrous CaSO) 4 ) More than one of them. The gypsum is selected from one or a mixture of hemihydrate gypsum and II type anhydrous calcium sulfate, and the compressive strength is more than or equal to 3.0MPa.
Preferably, the expanded perlite has a particle size of 50-70 mesh and a density of 80-100kg/m 3 It is a mineral material made of inorganic glass.
Preferably, the length of the polypropylene fiber is 6mm, the breaking strength is more than or equal to 27MPa, the initial modulus is 3 x 103MPa, the breaking elongation is less than or equal to 40%, and the polypropylene fiber is prepared by synthesizing polypropylene into polypropylene resin with the isotacticity of 97-98% and then performing melt extrusion, so that the crack resistance of the heat-preservation gypsum can be enhanced.
Preferably, the main component of the gypsum retarder is citric acid, which is an additive for reducing the hydration speed and the hydration heat of gypsum and prolonging the setting time.
Preferably, the cellulose ether is a high molecular compound with an ether structure and made of cellulose, the main component is hydroxymethyl cellulose ether, the cellulose ether has water retention property, the anti-sagging property of the heat preservation gypsum can be improved, and the viscosity is 400Pa.s.
Preferably, the redispersible latex powder is water-soluble white or white-like flowable powder, is a copolymer of ethylene and vinyl acetate, takes polyvinyl alcohol as a protective colloid, and has the compression strength ratio of the detected mortar of more than or equal to 70 percent, the tensile bonding strength ratio of more than or equal to 140 percent and the chloride ion permeability resistance of less than or equal to 25 percent. The adhesive powder can improve the bonding performance of the plastering gypsum.
Preferably, the starch ether is modified starch containing ether bond in the molecule, 5% solution of the modified starch is alkaline and can be dissolved in cold water, the fineness is less than 500 mu m, the viscosity of the 5% solution is 400-1200mpas, and the starch ether can increase the anti-sagging performance of the plastering gypsum.
Preferably, the air entraining agent is also called air entraining agent, is a hydrophobic surfactant, is dissolved in water and then is added into the concrete mixture, and can generate a large amount of micro bubbles in the stirring process.
The mixture of the gypsum retarder, the cellulose ether, the redispersible latex powder, the starch ether and the air entraining agent is added as an additive, so that the material can be ensured not to generate early plastic cracking on the basis of meeting the requirements of heat insulation performance, strength and construction performance.
Due to the adoption of the scheme, the invention has the beneficial effects that:
(1) The heat-insulating layer plastering gypsum material adopts the redispersible latex powder, and can increase the bonding property of the material on the basis of meeting the requirements of strength and construction performance.
(2) The starch ether is added into the heat-insulating layer plastering gypsum material, so that the anti-sagging performance of the plastering gypsum can be improved on the basis of meeting the basic performance, and the plastering gypsum does not fall off when the construction thickness of the plastering gypsum is larger.
(3) The air entraining agent is added into the heat insulating layer plastering gypsum material, so that tiny closed bubbles in the material can be increased, and the heat insulating property is improved.
In a word, the heat-insulating layer plastering gypsum material has the characteristics of environmental protection, strong cohesive force, difficult shedding, small contractibility, convenient construction, good workability, good water retention and workability, fast strength increase and capability of saving the construction period.
Detailed Description
The invention provides a plaster material for heat-insulating layer plastering.
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications can be made to the present invention by those skilled in the art after reading the contents of the present invention, and these equivalents also fall within the scope of the invention defined by the appended claims.
Example 1:
the heat-insulating layer plastering gypsum material comprises the following components in parts by weight:
example 2:
the heat-insulating layer plastering gypsum material comprises the following components in parts by weight:
example 3:
the heat-insulating layer plastering gypsum material comprises the following components in parts by weight:
example 4:
the heat-insulating layer plastering gypsum material comprises the following components in parts by weight:
comparative example 1:
the heat-insulating layer plastering gypsum material of the comparative example comprises the following components in parts by weight:
the physical property test results of the insulation layer plastering gypsum materials prepared in each example and comparative example are shown in table 1.
The preparation method of the heat-insulating layer plastering gypsum and the performance test steps are as follows:
1. the preparation method of the heat-insulating layer plastering gypsum comprises the following steps:
1. sequentially weighing gypsum, expanded perlite, polypropylene fiber, a gypsum retarder, cellulose ether, redispersible latex powder, starch ether and an air entraining agent according to the proportion, uniformly mixing, and pouring into a stirring pot;
2. the stirring pan and the stirring blades are wetted, but clear water is not available. Pouring the weighed heat-insulating layer plastering gypsum mixture into a stirring pot, starting a stirrer, and adding water according to the standard diffusion degree for stirring;
3. determination of Water consumption for Standard diffusivity
(1) Before the test, the table top of the diving table, the tamping bar, the truncated cone round mould and the inner wall of the mould sleeve are wiped by wet cloth, the truncated cone round mould and the mould sleeve are arranged in the center of the glass table top, and the wet cloth is covered;
(2) about 1.5L of the well-stirred sample was weighed to the nearest 5g. Water was added to the stirred pot at an estimated water usage for standard diffusivity. Uniformly scattering the sample into water within 30s, standing for 1min, wetting, stirring with a spoon for 1min, slowly stirring with a stirrer for 2min to obtain uniform gypsum slurry, and rapidly loading into a truncated cone round mold in two layers. The first layer is arranged at the position 2/3 of the height of the truncated cone round die, uniformly pounding and pressing for 15 times from the edge to the center by using a cylindrical tamping rod, then arranging the second layer of pulp, filling the pulp to a position about 20mm higher than the truncated cone round die, and uniformly pounding and pressing for 10 times from the edge to the center by using the cylindrical tamping rod. The tamping depth is as follows: the first layer is pounded to 1/3 of the height of the pulp, and the second layer is pounded to no more than the surface of the tamped bottom layer. When the mortar is filled and tamped, the truncated cone round die is held by hands to avoid moving.
(3) And after the tamping is finished, taking down the die sleeve, scraping off and leveling the slurry higher than the truncated cone circular die by using a leveling knife, and then slightly lifting the truncated cone circular die vertically upwards. The time from filling the slurry to lifting the truncated cone circular mold was 2min. The jump table was immediately started and jumps 15 times in succession at a rate of once per second.
After the jumping, measuring the diameters of the test cakes in two mutually perpendicular directions to the accuracy of 1mm, and calculating the average value of the diameters in the two directions, namely the standard diffusivity. It should be equal to (165 + -5) mm for facing and bottom stucco, and equal to (150 + -5) mm for insulation stucco. Otherwise, the water addition amount should be changed, and the gypsum slurry should be mixed again for testing until the requirement is met.
And recording the water adding amount when the diffusivity of the gypsum slurry is the standard diffusivity in two consecutive times, wherein the mass ratio of the water amount to the sample (expressed by percentage and accurate to 1%) is the water amount for the standard diffusivity.
2. The method for testing the setting time of the plastering gypsum of the heat-insulating layer comprises the following steps:
1. measurement of coagulation time:
a part of gypsum slurry with water consumption of standard diffusivity is poured into an annular test mould to measure the setting time according to GB/T17669.4 'measurement of physical properties of building gypsum clean slurry', but the measuring time interval is 5min.
3. Measurement of the intensity
1. Determination of the flexural strength:
weighing about 1.5L of the sample from the sealed container, accurately weighing to 5g, and adding water according to standard diffusivity to prepare gypsum slurry. The slurry is poured into a test mould coated with a thin layer of mineral oil in advance by a material spoon, and the test mould vibration and demoulding procedures are carried out according to GB/T17669.3 'determination of mechanical properties of building gypsum', but the test piece is demoulded after final setting for 1 h.
And (3) placing the demolded test piece under laboratory conditions for the third day, and drying the test piece in an electrothermal blowing drying oven at the temperature of (40 +/-2) DEG C until the weight is constant (the weight is constant when the mass is not reduced by more than 1g in 24 h). The dried test piece was cooled to room temperature under laboratory conditions and the flexural strength was measured.
The flexural strength is determined according to GB/T17669.3 determination of mechanical properties of building gypsum.
2. Determination of compressive strength:
the test method of the compressive strength is carried out according to GB/T17669.3 'determination of mechanical properties of building gypsum', but the pressure-bearing area of the compressive clamp is 40mm X40mm. The compressive strength is calculated as follows:
Rc＝P/Sc
wherein Rc-compressive strength, mpa;
p-maximum load at failure, N;
sc-is equal to 1600, bearing area, mm 2 。
4. Determination of bulk density:
weighing the anti-breaking strength test piece dried to constant weight to be accurate to 1g, calculating the average mass of the three test pieces, and calculating the volume density according to the following formula:
γ＝G/V×1000
wherein gamma-bulk density, kg/m 3 ；
G is the average mass of the test piece, G;
v-is equal to 256, volume of specimen, cm 3 。
5. Measurement of thermal conductivity:
the heat conductivity coefficient of the heat-insulating layer plastering gypsum is measured according to GB/T10294, a test piece is prepared by using gypsum slurry with standard diffusivity, the test piece is cured to the third day, demoulding is carried out, the test piece is cured to the seventh day and dried,
6. bond strength test method:
the test is carried out according to the method specified by JGJ/T70-2009, gypsum slurry with standard diffusivity is used for preparing a test piece, the test piece is cured to the seventh day and dried, and then the tensile bonding strength test is carried out.
TABLE 1 physical Properties test results of insulation plastering Gypsum materials prepared in each example and comparative example
As can be seen from Table 1, when the mixing amount of the gypsum retarder reaches 1.0 part in example 1, the initial setting time is short, and the setting time meets the construction requirements; the thermal conductivity is higher in example 2; when the mixing amount of the redispersible latex powder in the embodiment 3 reaches 8 parts, the bonding strength is moderate; the test result of the example 4 shows that various technical parameters of the heat-preservation gypsum meet the requirements. The volume density of the heat-preservation gypsum is not satisfied with the standard requirements because the mixing amount of the expanded perlite in the comparative example 1 is low and the volume density of the heat-preservation gypsum is large, and when the mixing amount of the expanded perlite in the example 2 reaches 260 parts, the volume density of the heat-preservation gypsum is obviously reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments. Those skilled in the art should appreciate that many modifications and variations are possible in light of the above teaching without departing from the scope of the invention.
Claims (8)
1. The utility model provides a heat preservation gypsum material that plasters which characterized in that: the paint comprises the following components in parts by weight:
2. the heat-insulating layer plastering gypsum material of claim 1, wherein: the gypsum is more than one of semi-hydrated gypsum or II type anhydrous calcium sulfate, and the compressive strength is more than or equal to 3.0Mpa.
3. The heat-insulating layer plastering gypsum material of claim 1, wherein: the particle size of the expanded perlite is 50-70 meshes, and the density is 80-100kg/m 3 In the meantime.
4. The heat insulating layer plastering gypsum material of claim 1, wherein: the length of the polypropylene fiber is 6mm, the breaking strength is more than or equal to 27MPa, the initial modulus is 3 x 103MPa, and the breaking elongation is less than or equal to 40%.
5. The heat-insulating layer plastering gypsum material of claim 1, wherein: the main component of the gypsum retarder is citric acid.
6. The heat-insulating layer plastering gypsum material of claim 1, wherein: the cellulose ether is hydroxymethyl cellulose ether and has viscosity of 400Pa.s.
7. The heat insulating layer plastering gypsum material of claim 1, wherein: the redispersible latex powder is a copolymer of ethylene and vinyl acetate, the compression strength ratio of the detected mortar is more than or equal to 70 percent, the tensile bonding strength ratio is more than or equal to 140 percent, and the chloride ion permeability resistance is less than or equal to 25 percent.
8. The heat insulating layer plastering gypsum material of claim 1, wherein: the fineness of the starch ether is less than 500 mu m, and the viscosity of a 5% solution is 400-1200mpas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211403452.5A CN115557772A (en) | 2022-11-10 | 2022-11-10 | Plaster material for heat-insulating layer plastering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211403452.5A CN115557772A (en) | 2022-11-10 | 2022-11-10 | Plaster material for heat-insulating layer plastering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115557772A true CN115557772A (en) | 2023-01-03 |
Family
ID=84769799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211403452.5A Pending CN115557772A (en) | 2022-11-10 | 2022-11-10 | Plaster material for heat-insulating layer plastering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115557772A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239809A (en) * | 2008-03-14 | 2008-08-13 | 上海中绿建材有限公司 | Gypsum lightweight mortar |
| CN104496388A (en) * | 2014-12-26 | 2015-04-08 | 上海每天节能环保科技股份有限公司 | Lightweight bottom layer plastering gypsum |
| CN104961423A (en) * | 2015-07-19 | 2015-10-07 | 北京工业大学 | Machine-spraying-type plastering gypsum mortar and preparation technology thereof |
| CN108530009A (en) * | 2018-07-06 | 2018-09-14 | 申志斌 | A kind of inner wall of building lightweight plastering gupsum |
| CN108793921A (en) * | 2018-07-20 | 2018-11-13 | 安徽省万帮新型建材科技有限公司 | A kind of cracking resistance plastering gupsum mortar |
| CN114105597A (en) * | 2021-12-15 | 2022-03-01 | 上海宝冶工程技术有限公司 | Lightweight plastering gypsum material |
-
2022
- 2022-11-10 CN CN202211403452.5A patent/CN115557772A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239809A (en) * | 2008-03-14 | 2008-08-13 | 上海中绿建材有限公司 | Gypsum lightweight mortar |
| CN104496388A (en) * | 2014-12-26 | 2015-04-08 | 上海每天节能环保科技股份有限公司 | Lightweight bottom layer plastering gypsum |
| CN104961423A (en) * | 2015-07-19 | 2015-10-07 | 北京工业大学 | Machine-spraying-type plastering gypsum mortar and preparation technology thereof |
| CN108530009A (en) * | 2018-07-06 | 2018-09-14 | 申志斌 | A kind of inner wall of building lightweight plastering gupsum |
| CN108793921A (en) * | 2018-07-20 | 2018-11-13 | 安徽省万帮新型建材科技有限公司 | A kind of cracking resistance plastering gupsum mortar |
| CN114105597A (en) * | 2021-12-15 | 2022-03-01 | 上海宝冶工程技术有限公司 | Lightweight plastering gypsum material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102159774B (en) | Composite structure for exterior insulation applications of outside wall | |
| US11608297B2 (en) | Lightweight gypsum products having enhanced water resistance | |
| CN103664114B (en) | Self-heat-insulating fly ash autoclaved aerated concrete block and preparation method thereof | |
| JP5173109B2 (en) | Dry gypsum cement mixture and method for producing outdoor gypsum cement using the mixture | |
| CN106145829B (en) | A kind of heat-insulation wall plate and preparation method thereof | |
| CN106966687A (en) | One kind is without strong cohesive force phosphate cement patching material of mobility rapid hardening and preparation method thereof | |
| CN102765905B (en) | EPS light aggregate concrete composite wall and its construction method | |
| CN102762515A (en) | Foamed concrete | |
| CN101306934A (en) | Haydite aerated concrete block and method for manufacturing same | |
| CN114276107B (en) | Quick-calcined light plastering gypsum and preparation method thereof | |
| KR20190078615A (en) | Multi-layered insulating structure system for buildings - Method for manufacturing the same - Dry type composition used for its manufacture | |
| CN110540394B (en) | Material suitable for 3D printing of concrete shear force wall and preparation method thereof | |
| CN109336637B (en) | Foam concrete based on silicate-aluminosilicate composite adhesive material and preparation method thereof | |
| CN105152598B (en) | A kind of rack type ceramsite foam concrete and preparation method thereof | |
| CN106007613A (en) | Gypsum-based composite material for self-insulation wall and preparation method of gypsum-based composite material | |
| CN109206108A (en) | A kind of scratch coat gypsum and preparation method thereof | |
| CN108975817A (en) | A kind of thermal insulation mortar and preparation method thereof using desulfurized gypsum whisker reinforcement | |
| CN105625588B (en) | A kind of building heat insulating exterior wall construction method | |
| CN101492280A (en) | Phosphate cellular concrete and process for producing its product | |
| CN115557772A (en) | Plaster material for heat-insulating layer plastering | |
| Schackow et al. | Stabilized mortar with air incorporator agent and plasticizer set retarder: performance measurement | |
| CN110451911A (en) | A kind of flooring keeps the temperature the preparation method of levelling integrated gravity flowing levelling mortar | |
| US20210214278A1 (en) | Ultra-light mineral foam having water repellent properties | |
| CN101538167A (en) | Porous concrete mixture and products and preparation method thereof | |
| CN111439983A (en) | Light inner wall heat insulation gypsum mortar and production process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |