CN114014624A - Method for proportioning gypsum-based self-leveling mortar special for ground heating backfill - Google Patents
Method for proportioning gypsum-based self-leveling mortar special for ground heating backfill Download PDFInfo
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- CN114014624A CN114014624A CN202111459057.4A CN202111459057A CN114014624A CN 114014624 A CN114014624 A CN 114014624A CN 202111459057 A CN202111459057 A CN 202111459057A CN 114014624 A CN114014624 A CN 114014624A
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- leveling
- leveling mortar
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- 239000010440 gypsum Substances 0.000 title claims abstract description 59
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 59
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 title claims abstract description 17
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000010451 perlite Substances 0.000 claims abstract description 19
- 235000019362 perlite Nutrition 0.000 claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 15
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 15
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010456 wollastonite Substances 0.000 claims abstract description 15
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 15
- 239000010457 zeolite Substances 0.000 claims abstract description 15
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 239000006004 Quartz sand Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 239000011398 Portland cement Substances 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 37
- 239000012046 mixed solvent Substances 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 19
- 239000011259 mixed solution Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 12
- 238000005303 weighing Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 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
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
Abstract
The invention relates to the technical field of mortar proportioning methods, in particular to a gypsum-based self-leveling mortar proportioning method special for floor heating backfill, wherein the gypsum-based self-leveling mortar takes portland cement and gypsum as basic cementing materials, quartz sand, perlite and epoxy resin as aggregates, water as a solvent, citric acid waste residues as a retarder, fly ash and cellulose ether as water reducers, wollastonite powder as a reinforcing agent and zeolite powder as a displacer, and contains a defoaming agent. The zeolite powder is added into the cement to better improve the stability of the cement, so that the problems that a large amount of water and cement need to be injected for dissolving when the gypsum-based self-leveling mortar is used, raw materials are greatly wasted, the strength is relatively low, and cracks can appear after long-time use are solved.
Description
Technical Field
The invention relates to the technical field of gypsum-based self-leveling mortar, in particular to a method for proportioning gypsum-based self-leveling mortar special for ground heating backfill.
Background
The self-leveling gypsum is called gypsum-based self-leveling mortar for short, and is a dry powder mortar specially used for ground leveling, which is prepared by precisely configuring and uniformly mixing gypsum materials, special aggregate and various construction chemical additives in a factory, and a base layer has great influence on cement-based self-leveling, such as base layer flatness, surface strength, age and the like, so that the cement-based self-leveling construction is specified to be carried out after the structure and the ground base layer construction are accepted;
when the existing gypsum-based self-leveling mortar is used, a large amount of water and cement are required to be injected for dissolving, raw materials are greatly wasted, the strength is relatively low, and cracks can appear after the mortar is used for a long time, so that a special gypsum-based self-leveling mortar proportioning method for geothermal backfilling is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to provide a method for proportioning gypsum-based self-leveling mortar special for ground heating backfill, which aims to solve the problems that when the gypsum-based self-leveling mortar provided by the background art is used, a large amount of water and cement are required to be injected for dissolving, raw materials are greatly wasted, the strength is relatively low, and cracks can occur after long-time use.
In order to achieve the purpose, the invention provides the following technical scheme: a gypsum-based self-leveling mortar proportioning method special for geothermal backfilling is characterized in that the gypsum-based self-leveling mortar takes silicate cement and gypsum as basic cementing materials, quartz sand, perlite and epoxy resin as aggregates, water as a solvent, citric acid waste slag as a retarder, fly ash and cellulose ether as water reducers, wollastonite powder as a reinforcing agent and zeolite powder as a displacer, and the gypsum-based self-leveling mortar contains a defoaming agent;
the method comprises the following steps:
the method comprises the following steps: dissolving basic gel materials of portland cement, gypsum, zeolite powder and a defoaming agent into water to prepare a mixed raw material;
step two: adding aggregate quartz sand, perlite and epoxy resin into the mixed raw materials, and uniformly mixing;
step three: dissolving citric acid waste residue, wollastonite powder, fly ash and cellulose ether in water to prepare a mixed solvent;
step four: adding the mixed solvent and the mixed raw materials into a stirring barrel for stirring;
step five: standing the mixed solvent and the mixed raw materials after the mixing and stirring are finished, and then stirring;
step six: pouring a small amount of the mixed solution after stirring into the ground to observe the flowing condition;
step seven: and pouring the prepared gypsum-based self-leveling mortar into the ground for self-leveling.
Further, the gypsum-based self-leveling mortar comprises the following components in percentage by mass: 25-30% of silicate cement, 10% of gypsum, 15-20% of quartz sand, 5-10% of perlite, 5-10% of epoxy resin, 15-20% of water, 5-10% of zeolite powder, 0.1-0.5% of citric acid waste residue, 0.1-0.5% of fly ash, 0.1-0.5% of cellulose ether, 5-10% of wollastonite powder and 0.1-0.5% of defoaming agent.
Furthermore, the ground construction temperature of the gypsum-based self-leveling mortar is 5-35 ℃, the relative humidity is not higher than 80%, and the best effect of various components is achieved at 10-25 ℃.
Further, perlite and epoxy are particles with the diameter of 5mm, the perlite can be used for ground heat preservation for aggregate, and the epoxy can be used for ground moisture prevention for aggregate.
Furthermore, the citric acid waste residue is used as a retarder and can be used for reducing the cost.
Further, slowly adding the mixed raw materials and the mixed solvent in the fourth step, and continuously stirring for 3-5 min until the mixture is uniform and has no caking.
And further, standing for 2-3 min in the fifth step to fully wet the self-leveling material, and stirring for 2-3 min after bubbles are removed to enable the slurry to be in a uniform paste state.
Further, before the mixed solution is poured in the sixth step, the ground is coated with the self-leveling interface agent for 1-2 times, and the self-leveling interface agent is dried for 2 hours, wherein the mixing ratio of the interface agent to water is 1: 3.
Further, after the slurry is flattened in the seventh step, a self-leveling defoaming roller can be used for air release.
Compared with the prior art, the invention has the beneficial effects that:
1. the zeolite powder is added into the cement to better improve the stability of the cement and improve the yield, the wollastonite powder replaces part of the cement to be added into the mortar, the density and the cohesion are increased, the compressive strength and the flexural strength of the concrete are greatly enhanced, 5 to 10 percent of wollastonite is added, the compressive strength can be improved by 10 to 30 percent, the flexural strength is improved by more than 10 percent, the fluidity, the cohesiveness and the water retention property of a concrete mixture can be improved by adding a proper amount of fly ash, the viscosity, the mixing amount, the environmental temperature and the molecular structure of cellulose ether have great influence on the water retention property, and the larger the viscosity of the cellulose ether is, the better the water retention property is; the higher the mixing amount is, the better the water retention property is, effectively prevent gypsum-based self-leveling mortar from carrying out the use, need pour into a large amount of water and cement and dissolve, when great waste raw and other materials, intensity is also lower relatively, can appear the problem of the condition of crack under the long-time use.
2. Can keep warm for ground through the pearlite, epoxy can be dampproofing for ground, through dampproofing and the heat retaining effect to ground, has reduced the moisture on ground, has carried out the separation to water, and through heat retaining effect for warm up when daily use, can effectual holding temperature, accomplish energy saving and emission reduction.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention will be explained in more detail below with reference to specific examples:
a method for proportioning gypsum-based self-leveling mortar special for floor heating backfill is characterized in that the gypsum-based self-leveling mortar takes portland cement and gypsum as basic cementing materials, quartz sand, perlite and epoxy resin as aggregates, water as a solvent, citric acid waste slag as a retarder, fly ash and cellulose ether as water reducers, wollastonite powder as a reinforcing agent and zeolite powder as a displacer, and contains a defoaming agent;
the method comprises the following steps:
the method comprises the following steps: dissolving basic gel materials of portland cement, gypsum, zeolite powder and a defoaming agent into water to prepare a mixed raw material;
step two: adding aggregate quartz sand, perlite and epoxy resin into the mixed raw materials, and uniformly mixing;
step three: dissolving citric acid waste residue, wollastonite powder, fly ash and cellulose ether in water to prepare a mixed solvent;
step four: adding the mixed solvent and the mixed raw materials into a stirring barrel for stirring;
step five: standing the mixed solvent and the mixed raw materials after the mixing and stirring are finished, and then stirring;
step six: pouring a small amount of the mixed solution after stirring into the ground to observe the flowing condition;
step seven: and pouring the prepared gypsum-based self-leveling mortar into the ground for self-leveling.
The gypsum-based self-leveling mortar comprises the following components in percentage by mass:
25 to 30 percent of Portland cement, 10 percent of gypsum, 15 to 20 percent of quartz sand, 5 to 10 percent of perlite, 5 to 10 percent of epoxy resin, 15 to 20 percent of water, 5 to 10 percent of zeolite powder, 0.1 to 0.5 percent of citric acid waste residue, 0.1 to 0.5 percent of fly ash, 0.1 to 0.5 percent of cellulose ether, 5 to 10 percent of wollastonite powder and 0.1 to 0.5 percent of defoaming agent.
The ground construction temperature of the gypsum-based self-leveling mortar is 5-35 ℃, the relative humidity is not higher than 80%, the effect of various components is best at 10-25 ℃, the construction temperature comprises the ambient temperature and the base temperature, because the polymer and the self-leveling interfacial agent used in the cement-based or gypsum-based self-leveling mortar cannot form a film or even can be frozen at the low temperature of lower than 5 ℃, and the effect of various components is best at 10-25 ℃, the performances such as the fluidity and the like are more easily exerted, during the heating process, a heating system is closed or adjusted to a smaller gear, the cracking caused by overhigh temperature is avoided, and when the humidity of the construction environment is higher than 80%, the apparent effect of self-leveling can be influenced.
Perlite and epoxy are diameter 5 mm's particulate matter, the perlite can be used to ground for the aggregate and keeps warm, epoxy can be used to ground dampproofing for the aggregate, through dampproofing and to ground heat retaining effect to ground, has reduced the moisture on ground, has carried out the separation to water, and through heat retaining effect for warm up when daily use, can effectual holding temperature, accomplish energy saving and emission reduction.
The citric acid waste slag is used as a retarder and can be used for reducing the cost, and the use cost is reduced while the use standard of the retarder is met by using the citric acid waste slag as the retarder.
And in the fourth step, the mixed raw materials and the mixed solvent are slowly added, the continuous stirring time is 3-5 min until the mixture is uniform and has no agglomeration, and the raw materials can be more fully mixed during stirring by slowly adding the mixed raw materials and the mixed solvent.
And standing for 2-3 min in the fifth step to fully wet the self-leveling material, and stirring for 2-3 min after bubbles are removed to enable the slurry to be uniform paste.
Before the mixed solution is poured into the step six, the ground is required to be coated with the self-leveling interface agent for 1-2 times, and the mixed solution is dried for 2 hours, the blending ratio of the interface agent to water is 1: 3, the interface agent can be diluted by 2 times of water for use, the water adding ratio is adjusted according to the water absorption condition of a base layer, the mixed solution is poured to the ground after being dried to observe the water absorption condition, the mixed solution can be coated for 1 time again according to the requirement, after the interface agent is completely dried, the mixed solution can be slightly sprayed with water for wetting, the self-leveling is started, and clear water cannot be left after the ground is wetted.
And seventhly, after the slurry is flattened, the self-leveling defoaming roller can be used for deflating, when the defoaming roller is used for deflating, the adaptability of the nail length and the paving thickness of the defoaming roller needs to be noticed, the defoaming roller mainly assists the slurry to flow and reduces bubbles and stubbles generated in the process of mixing and paving, and an operator needs to put on a nail for shoe operation.
The first embodiment is as follows:
the ground construction temperature of the gypsum-based self-leveling mortar is 5 ℃;
the method comprises the following steps: weighing 25% of portland cement, 10% of gypsum, 5% of zeolite powder and 0.1% of defoaming agent, and dissolving the materials in 10% of water to prepare a mixed raw material for later use;
step two: adding 15% of quartz sand, 5% of perlite and 5% of epoxy resin into the mixed raw materials, and uniformly mixing;
step three: weighing 0.1% of citric acid waste residue, 5% of wollastonite powder, 0.1% of fly ash and 0.1% of cellulose ether, and dissolving in 5% of water to prepare a mixed solvent;
step four: adding the mixed solvent and the mixed raw material into a stirring barrel for stirring, slowly adding the mixed raw material and the mixed solvent, and continuously stirring for 3-5 min at the rotating speed of 25.0 Hz until the mixture is uniform and has no caking;
step five: standing the mixed solvent and the mixed raw material after mixing and stirring, standing for 2-3 min to fully wet the self-leveling material, removing bubbles, and stirring for 2-3 min to make the slurry become uniform paste;
step six: pouring a small amount of the stirred mixed solution into the ground to observe the flowing condition, and pouring the mixed solution on the ground to be freely flattened without caking;
step seven: and pouring the prepared gypsum-based self-leveling mortar into the ground for self-leveling.
Example two:
the ground construction temperature of the gypsum-based self-leveling mortar is 20 ℃;
the method comprises the following steps: 27% of Portland cement, 10% of gypsum, 7% of zeolite powder and 0.25% of defoaming agent are weighed and dissolved in 12% of water to prepare mixed raw materials for standby;
step two: adding 17% of quartz sand, 7% of perlite and 7% of epoxy resin into the mixed raw materials, and uniformly mixing;
step three: weighing 0.25% of citric acid waste residue, 7% of wollastonite powder, 0.25% of fly ash and 0.25% of cellulose ether, and dissolving in 5% of water to prepare a mixed solvent;
step four: adding the mixed solvent and the mixed raw material into a stirring barrel for stirring, slowly adding the mixed raw material and the mixed solvent, and continuously stirring for 3-5 min at the rotating speed of 25.0 Hz until the mixture is uniform and has no caking;
step five: standing the mixed solvent and the mixed raw material after mixing and stirring, standing for 2-3 min to fully wet the self-leveling material, removing bubbles, and stirring for 2-3 min to make the slurry become uniform paste;
step six: pouring a small amount of the stirred mixed solution into the ground to observe the flowing condition, and pouring the mixed solution on the ground to be freely flattened without caking;
step seven: and pouring the prepared gypsum-based self-leveling mortar into the ground for self-leveling.
Example three:
the ground construction temperature of the gypsum-based self-leveling mortar is 35 ℃;
the method comprises the following steps: weighing 30% of Portland cement, 10% of gypsum, 10% of zeolite powder and 0.5% of defoaming agent, and dissolving the materials in 15% of water to prepare mixed raw materials for later use;
step two: adding 20% of quartz sand, 10% of perlite and 10% of epoxy resin into the mixed raw materials, and uniformly mixing;
step three: weighing 0.5% of citric acid waste residue, 10% of wollastonite powder, 0.5% of fly ash and 0.5% of cellulose ether, and dissolving in 5% of water to prepare a mixed solvent;
step four: adding the mixed solvent and the mixed raw material into a stirring barrel for stirring, slowly adding the mixed raw material and the mixed solvent, and continuously stirring for 3-5 min at the rotating speed of 25.0 Hz until the mixture is uniform and has no caking;
step five: standing the mixed solvent and the mixed raw material after mixing and stirring, standing for 2-3 min to fully wet the self-leveling material, removing bubbles, and stirring for 2-3 min to make the slurry become uniform paste;
step six: pouring a small amount of the stirred mixed solution into the ground to observe the flowing condition, and pouring the mixed solution on the ground to be freely flattened without caking;
step seven: and pouring the prepared gypsum-based self-leveling mortar into the ground for self-leveling.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. The proportioning method of the gypsum-based self-leveling mortar special for floor heating backfill is characterized in that the gypsum-based self-leveling mortar takes portland cement and gypsum as basic cementing materials, quartz sand, perlite and epoxy resin as aggregates, water as a solvent, citric acid waste slag as a retarder, fly ash and cellulose ether as water reducers, wollastonite powder as a reinforcing agent and zeolite powder as a displacer, and contains a defoaming agent;
the method comprises the following steps:
the method comprises the following steps: dissolving basic gel materials of portland cement, gypsum, zeolite powder and a defoaming agent into water to prepare a mixed raw material;
step two: adding aggregate quartz sand, perlite and epoxy resin into the mixed raw materials, and uniformly mixing;
step three: citric acid waste residue, wollastonite powder, fly ash and cellulose ether are dissolved in water to prepare a mixed solvent;
step four: adding the mixed solvent and the mixed raw materials into a stirring barrel for stirring;
step five: standing the mixed solvent and the mixed raw materials after the mixing and stirring are finished, and then stirring;
step six: pouring a small amount of the mixed solution after stirring into the ground to observe the flowing condition;
step seven: and pouring the prepared gypsum-based self-leveling mortar into the ground for self-leveling.
2. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: the gypsum-based self-leveling mortar comprises the following components in percentage by mass: 25 to 30 percent of Portland cement, 10 percent of gypsum, 15 to 20 percent of quartz sand, 5 to 10 percent of perlite, 5 to 10 percent of epoxy resin, 15 to 20 percent of water, 5 to 10 percent of zeolite powder, 0.1 to 0.5 percent of citric acid waste residue, 0.1 to 0.5 percent of fly ash, 0.1 to 0.5 percent of cellulose ether, 5 to 10 percent of wollastonite powder and 0.1 to 0.5 percent of defoaming agent.
3. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: the ground construction temperature of the gypsum-based self-leveling mortar is 5-35 ℃, the relative humidity is not higher than 80%, and the effect of various components is best at 10-25 ℃.
4. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: perlite and epoxy are particles with the diameter of 5mm, the perlite can be used for ground heat preservation for aggregate, and the epoxy can be used for ground moisture prevention for aggregate.
5. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: the citric acid waste residue is used as a retarder and can be used for reducing the cost.
6. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: slowly adding the mixed raw materials and the mixed solvent in the fourth step, and continuously stirring for 3-5 min until the mixture is uniform and has no caking.
7. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: and standing for 2-3 min in the fifth step to fully wet the self-leveling material, and stirring for 2-3 min after bubbles are removed to enable the slurry to be uniform paste.
8. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: before the mixed solution is poured in the sixth step, the ground is required to be coated with the self-leveling interface agent for 1-2 times, and the self-leveling interface agent is dried for 2 hours, wherein the mixing ratio of the interface agent to water is 1: 3.
9. The method for proportioning the gypsum-based self-leveling mortar special for floor heating backfill according to claim 1, which is characterized by comprising the following steps: and seventhly, after the slurry is flattened, a self-leveling defoaming roller can be adopted for deflation.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497514A (en) * | 2008-06-05 | 2009-08-05 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN109516755A (en) * | 2018-12-27 | 2019-03-26 | 河南强耐新材股份有限公司 | A kind of dedicated gypsum based self-leveling mortar of floor heating backfill |
| CN110330302A (en) * | 2019-06-18 | 2019-10-15 | 李山 | A kind of dedicated gypsum based self-leveling mortar of floor heating backfill |
| WO2020253883A1 (en) * | 2019-06-21 | 2020-12-24 | 中建材创新科技研究院有限公司 | Gypsum-based self-leveling floor and manufacturing method therefor |
| CN112250408A (en) * | 2020-10-22 | 2021-01-22 | 浙江古思建筑科技有限公司 | Gypsum-based self-leveling mortar and application and construction method thereof |
| CN112851284A (en) * | 2021-01-29 | 2021-05-28 | 南京工业大学 | Gypsum self-leveling mortar for ground heating backfill and preparation method thereof |
-
2021
- 2021-12-01 CN CN202111459057.4A patent/CN114014624A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497514A (en) * | 2008-06-05 | 2009-08-05 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN109516755A (en) * | 2018-12-27 | 2019-03-26 | 河南强耐新材股份有限公司 | A kind of dedicated gypsum based self-leveling mortar of floor heating backfill |
| CN110330302A (en) * | 2019-06-18 | 2019-10-15 | 李山 | A kind of dedicated gypsum based self-leveling mortar of floor heating backfill |
| WO2020253883A1 (en) * | 2019-06-21 | 2020-12-24 | 中建材创新科技研究院有限公司 | Gypsum-based self-leveling floor and manufacturing method therefor |
| CN112250408A (en) * | 2020-10-22 | 2021-01-22 | 浙江古思建筑科技有限公司 | Gypsum-based self-leveling mortar and application and construction method thereof |
| CN112851284A (en) * | 2021-01-29 | 2021-05-28 | 南京工业大学 | Gypsum self-leveling mortar for ground heating backfill and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 严生: "《立窑水泥生产中的质量分析与调控》", 30 June 1994, 北京蓝基建材新技术研究应用所 * |
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