CN108516785A - A kind of high-early-strength does not crack surfacing self-leveling floor mortar and preparation method thereof - Google Patents
A kind of high-early-strength does not crack surfacing self-leveling floor mortar and preparation method thereof Download PDFInfo
- Publication number
- CN108516785A CN108516785A CN201810719027.4A CN201810719027A CN108516785A CN 108516785 A CN108516785 A CN 108516785A CN 201810719027 A CN201810719027 A CN 201810719027A CN 108516785 A CN108516785 A CN 108516785A
- Authority
- CN
- China
- Prior art keywords
- mortar
- early
- crack
- agent
- mesh
- 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
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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
- C04B28/146—Calcium sulfate hemi-hydrate with a specific crystal form alpha-hemihydrate
-
- 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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
- C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C04B41/4884—Polyurethanes; Polyisocyanates
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
-
- 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
-
- 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
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
It does not crack surfacing self-leveling floor mortar the invention discloses a kind of high-early-strength, is made of by mass percentage following raw materials according：Semi-hydrated gypsum 30 60%, cement 5 20%, coarse whiting 5 15%, quartz sand 10 30%, silica flour 10 20%, retarder 0.05 0.25%, water-reducing agent 0.2 0.5%, redispersable latex powder 0.1 1.0%, thickening stabilizing agent 0.03 0.1%, antifoaming agent 0.1 0.5%, pigment 0.1 0.5%, silicon dioxide fibre 0.4 1.0%, waterproofing agent 0.2 0.5%, coalescents 0.3 1.0%.Also disclose a kind of preparation method of high-early-strength surfacing self-leveling floor mortar.The gravity flowing levelling mortar of the present invention have the characteristics that it is fast hard, early it is strong, do not crack, without maintenance, it is wear-resisting, water-fast, formaldehydeless, easy construct, it is adaptable.Present invention is mainly used for the high-end places such as levelling in house, school, movie theatre, market, workshop, ground.
Description
Technical field
The present invention relates to gravity flowing levelling mortar field, specifically a kind of high-early-strength does not crack surfacing self-leveling floor mortar and its system
Preparation Method.
Background technology
Gravity flowing levelling mortar is one kind in extraordinary mortar, and there are load-bearing and decoration functions, gravity flowing levelling mortar to add water stirring i.e.
Can form free fluid slurry, can rapid deployment and obtain high-flatness, labour cost can be greatly reduced, improve construction efficiency,
More traditional artificial levelling efficient 5-10 times, and current and load-bearing can be provided in a short time, it substantially shortens the construction period, construction is existing
Field neat and tidy.
Gravity flowing levelling mortar can be divided into surfacing self-leveling floor and bed course Self-leveling according to construction requirement, and the two, which generally combines cooperation, to be made
With surfacing self-leveling floor mortar requires height, and the thickness to pave is than relatively thin.It can be divided into gypsum based self-leveling mortar and cement according to material
The shortcomings that based self-leveling mortar, cement-based self-leveling mortar intensity height, hardness height, abrasion-resistant etc., cement-based self-leveling mortar is
Early strength is low, needs to conserve, and is susceptible to hollowing problems of crack.Gypsum based self-leveling mortar early strength is high, expansion
Shrink small, the disadvantage is that not water-fast, case hardness is poor, not wear-resisting, a series of problems, such as being susceptible to drop.Surfacing self-leveling floor sand
Slurry is easily occurring decortication, sand, pitted skin and problems of crack using process, mainly not due to directly being contacted with other objects
It is inadequate because of compression strength, but the flexibility on surface and wearability are inadequate.Morning of surfacing self-leveling floor is strong, it is wear-resisting, not hollowing,
Do not crack, impact resistance be surfacing self-leveling floor technological difficulties.
Therefore, it for the above present situation, does not crack surfacing self-leveling floor mortar and its system there is an urgent need to develop a kind of high-early-strength
Preparation Method, to overcome the shortcomings of in currently practical application.
Invention content
It does not crack surfacing self-leveling floor mortar and preparation method thereof the purpose of the present invention is to provide a kind of high-early-strength, with solution
Certainly the problems mentioned above in the background art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of high-early-strength does not crack surfacing self-leveling floor mortar, is made of by mass percentage following raw materials according：Half water
Gypsum 30-60%, cement 5-20%, coarse whiting 5-15%, quartz sand 10-30%, silica flour 10-20%, retarder 0.05-
0.25%, water-reducing agent 0.2-0.5%, redispersable latex powder 0.1-1.0%, thickening stabilizing agent 0.03-0.1%, antifoaming agent
0.1-0.5%, pigment 0.1-0.5%, silicon dioxide fibre 0.4-1.0%, waterproofing agent 0.2-0.5%, coalescents 0.3-
1.0%.
As a further solution of the present invention：The semi-hydrated gypsum is alpha-semi water plaster stone or β-semi-hydrated gypsum, and gypsum is day
Right gypsum, industry by-product gypsum or synthetic gypsum.
As a further solution of the present invention：The cement is normal silicate 42.5 or 52.5, high alumina cement, sulphur aluminum water
One or more of mud.
As a further solution of the present invention：The mesh number of the coarse whiting is 300 mesh, Bai Du≤85%.
As a further solution of the present invention：The quartz sand is by three kinds of 40-80 mesh, 80-120 mesh and 120-180 mesh
It mixes, the mass ratio of three is 1：1.2-1.5：1.5-2.0.
As a further solution of the present invention：The silica flour is mixed by 800 mesh, 1250 mesh, three kinds of 3250 mesh,
Three's mass ratio is 1：1-3：2-5.
As a further solution of the present invention：The redispersable latex powder is the copolymer group of vinylacetate-ethylene
At, for watt gram universal 328N.
As a further solution of the present invention：The retarder is protein-based retarder, and the water-reducing agent is polycarboxylic acids
Powder water-reducing agent, the thickening stabilizing agent are that hydroxypropyl methyl cellulose ether and welan gum mix, viscosity 400-
600mPa.s, the antifoaming agent are organic silicon powder antifoaming agent, and the pigment is inorganic oxide iron class, the silica
Fiber mesh number is 50-300 mesh, and the waterproofing agent is organic silicon, and the coalescents are polyethylene glycol substances.
Do not crack the preparation method of surfacing self-leveling floor mortar the present invention also provides a kind of high-early-strength, includes the following steps：
1) plus water stirs evenly so that the initial fluidity of mortar is 150 ± 5mm；
2) gravity flowing levelling mortar being stirred uniformly is paved in the basal plane for having been coated with interfacial agents, is shakeout with tooth harrow auxiliary,
It is rolled around several times with defoaming roller again；
3) it after mortar hardening drying, polishes in mortar surface, and uniformly brush a strata urethane cover agent.
As a further solution of the present invention：In step 1), the quality with water and raw material of surfacing self-leveling floor mortar
Than for 0.19-0.21：1.
As a further solution of the present invention：In step 3), polyurethane cover agent is aqueous double-component polyurethane cover
Agent.
Compared with prior art, the beneficial effects of the invention are as follows：
The high-early-strength of the present invention do not crack surfacing self-leveling floor mortar have it is early strong, fast it is hard, do not crack, without maintenance, resistance to
Mill, water-fast, formaldehydeless, easy construction, adaptable feature.
The high-early-strength of the present invention surfacing self-leveling floor mortar 3h flexural strengths that do not crack reach 10Mpa, and compression strength reaches
30Mpa, 28d flexural strength reach 20Mpa, and compression strength reaches 60Mpa, and the shrinking percentage 0.03% of 28d complies fully with indoor surface
The performance requirement of layer terrace finishing.
The high-early-strength surfacing self-leveling floor mortar that do not crack of the present invention fundamentally solves floor leveling hollowing problem of Cracking,
Construction efficiency is improved, cost is reduced.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the embodiment of the present invention, a kind of high-early-strength does not crack surfacing self-leveling floor mortar, is by following raw materials according by quality
Percentage forms：Semi-hydrated gypsum 30-60%, cement 5-20%, coarse whiting 5-15%, quartz sand 10-30%, silica flour 10-20%,
Retarder 0.05-0.25%, water-reducing agent 0.2-0.5%, redispersable latex powder 0.1-1.0%, thickening stabilizing agent 0.03-
0.1%, antifoaming agent 0.1-0.5%, pigment 0.1-0.5%, silicon dioxide fibre 0.4-1.0%, waterproofing agent 0.2-0.5%, at
Film auxiliary agent 0.3-1.0%.
The high-early-strength do not crack surfacing self-leveling floor mortar mainly using semi-hydrated gypsum as major gelled material, cement
It for supplementary cementitious material, is adjusted by the ratio between the two materials, gives full play to what reaction between the two generated
The characteristic of calcium silicates or calcium aluminate to reduce the expansion of semi-hydrated gypsum aquation, while also ensuring the lasting increasing of later strength
It is long.Specially：The characteristic of calcium silicates or calcium aluminate is generated using reaction between the two, calcium silicates, calcium aluminate play mortar
Offset the volume expansion of gypsum aquation and promote early strength development effect, using coarse whiting and silica flour be conducive to pigment
Color.The various starting components of the present invention are by synergistic effect, to make the surfacing self-leveling floor mortar poured have early strength
It is high, integral strength is high, without maintenance, the smooth no pinprick in surface, abrasion-resistant, water-fast, shock resistance the features such as.
The semi-hydrated gypsum is divided into α and β types, and β-gypsum is by calcining, and α-gypsum is by a kettle
Heating is pressed to form, and β-gypsum water requirement is far more than α-gypsum, therefore intensity is also well below α-gypsum.In surfacing self-leveling floor mortar
It is middle to use β-gypsum, the ratio of mud of mortar can be improved, to influence the final strength of mortar, preferably, the present invention's is specific
It is mixed using pure α-gypsum or α, β in case study on implementation.
The cement is conducive to the coloring of pigment using white cement or high alumina cement in case study on implementation.Common type
Number (according to intensity) can be divided into 42.5 and 52.5.Preferably, 52.5 and the high alumina used in specific implementation case of the invention
Cement, to keep the early strength of gravity flowing levelling mortar high, later stage integral strength higher.
The coarse whiting common are 300 mesh, 800 mesh and 1250 mesh, preferably, being adopted in the case study on implementation of the present invention
With 300 purposes, 300 mesh are less than the mesh number of quartz sand, are more than the mesh number of cement and semi-hydrated gypsum, can form continuous grade in this way
Match, it is not easy to phenomena such as settling and isolating occur, further increase the intensity and case hardness of Self-leveling, while the whiteness of coarse whiting
85 or more, be conducive to the colouring of pigment.
The quartz sand generally selects 40-140 mesh, and in the case study on implementation of the present invention, preferably, described
Quartz sand include 40-80 mesh, three kinds of specifications of 80-120 mesh and 120-180 mesh quartz sand, mix 40-40 mesh quartz sand can reduce from
Levelling mortar uses water, improves the intensity of Self-leveling, but 40-80 mesh sand additions are excessive, are susceptible to sedimentation, cause on product
Lower intensity is inconsistent, in the case study on implementation of the present invention, preferably, 40-80 mesh：80-120 mesh：120-180 mesh quartz sands
Mass ratio is 1：1：2.
The silica flour mesh number is 800 mesh, 1250 mesh, 3250 mesh, and micron order silica flour, which is added, has ball effect, has
Conducive to the mobility of raising mortar, the dioxide-containing silica 85-95% of silica flour, 1.0-10 microns of grain fineness, silica
It is hydrophilic, grain size is small, large specific surface area, superficial attractive forces are strong, dispersion performance is good as amorphous white powder, there is small size
Effect can prevent gravity flowing levelling mortar shrinkage cracking, filling gravity flowing levelling mortar gap from improving Self-leveling intensity.Silica flour mixes
Play the role of aperture inside interstitital texture in mortar, and the gel formed after silica flour and water mix can wrap up cement
Grain and the Ca (OH) for being unfavorable for gravity flowing levelling mortar intensity generated when hydrated cementitious2Reaction generates conducive to gravity flowing levelling mortar intensity
Aquation silico-calcium gel (C-S-H) enhances the impermeability and wearability of Self-leveling to effectively improve Self-leveling intensity.In the present invention
Case study on implementation in, preferably, 800 mesh：1250 mesh：3250 mesh mass ratioes are 1：2：3.
Preferably, the copolymer that the redispersable latex powder is vinylacetate-ethylene forms, for watt gram it is logical
With type 328N.
Preferably, the retarder is protein-based retarder, it is easier to control the setting time of mortar.It is described to subtract
Aqua is polycarboxylic acids powder water-reducing agent, can significantly reduce the water consumption of mortar and improve mobility.The thickening stabilizing agent
It being mixed for hydroxypropyl methyl cellulose ether and welan gum, viscosity 400-600mPa.s can reduce the bubble in whipping process,
Improve compactness.The antifoaming agent is organic silicon powder antifoaming agent, and organic silicon defoamer has very strong defoaming and suds
Ability.The pigment is inorganic oxide iron class, and the silicon dioxide fibre mesh number is 50-300 mesh, and the waterproofing agent is organic
Silicon class, the coalescents are polyethylene glycol substances, and gravity flowing levelling mortar surface brightness and tidiness can be improved.
A kind of high-early-strength does not crack the preparation method of surfacing self-leveling floor mortar, includes the following steps：
1) plus water stirs evenly so that the initial fluidity of mortar is 150 ± 5mm, and the fluidity of gravity flowing levelling mortar is to use
The divergence of mortar is weighed, and according to testing standard, mortar is poured into a diameter of 3cm, in the sleeve of a height of 5cm, is then carried
It rises, mortar flows freely, and spreads into circle out, circular diameter is exactly fluidity；
2) gravity flowing levelling mortar being stirred uniformly is paved in the basal plane for having been coated with interfacial agents, is shakeout with tooth harrow auxiliary,
It is rolled around several times with defoaming roller again；
3) it after mortar hardening drying, polishes in mortar surface, and uniformly brush a strata urethane cover agent.
Preferably, in step 1), surfacing self-leveling floor mortar is 0.19- with the mass ratio of water and raw material
0.21：1, requirement of the surfacing self-leveling floor to intensity and case hardness is very high, under the premise of meeting mobility, need to subtract as far as possible
Few water consumption.
Preferably, in step 3), after mortar drying hardening, polish surface, then in external coating
The cover agent of one layer of aqueous double-component polyurethane, has blocked the hole of mortar surface, improves the closely knit, beautiful and resistance to of surface layer
It is dirty.
Above-mentioned specific implementation mode will be further illustrated by specific case study on implementation below, but therefore will be not of the invention
Among the limitation practical range.Test method without specific conditions in case study on implementation below, conventionally and
Condition, or selected according to product manual.It is direct by commercial sources that the reagent, raw material and instrument and equipment illustrated is not made
It buys.
Embodiment 1
A kind of high-early-strength surfacing self-leveling floor mortar that do not crack is made of by mass percentage following raw materials according：α-half water stones
Cream 50%, 52.5 white cements 10%, coarse whiting 5%, quartz sand 12.78%, silica flour 20%, retarder 0.1%, water-reducing agent
0.3%, redispersable latex powder 0.5%, thickening stabilizing agent 0.03%, antifoaming agent 0.17%, pigment 0.28%, silica are fine
Dimension 0.4%, waterproofing agent 0.2%, coalescents 0.3%.
The high-early-strength does not crack the preparation method of surfacing self-leveling floor mortar, includes the following steps：
1) it is 0.20 to press water and powder ratio：1, add water to stir evenly, the initial fluidity for obtaining mortar after tested is
152mm；
2) gravity flowing levelling mortar being stirred uniformly is paved in the basal plane for having been coated with interfacial agents, is shakeout with tooth harrow auxiliary,
It is rolled around several times with defoaming roller again；
3) it after mortar hardening drying, polishes in mortar surface, and uniformly brushes aqueous double groups of one layer of light gray
Part polyurethane cover agent.
Embodiment 2
A kind of high-early-strength surfacing self-leveling floor mortar that do not crack is made of by mass percentage following raw materials according：α-half water stones
Cream 40%, 52.5 white cements 15%, coarse whiting 11.4%, quartz sand 14%, silica flour 15%, retarder 0.15%, water-reducing agent
0.35%, redispersable latex powder 0.8%, thickening stabilizing agent 0.05%, antifoaming agent 0.3%, pigment 0.5%, silica are fine
Dimension 1.0%, waterproofing agent 0.5%, coalescents 0.32%.
The high-early-strength does not crack the preparation method of surfacing self-leveling floor mortar, includes the following steps：
1) it is 0.21 to press water and powder ratio：1, add water to stir evenly, the initial fluidity for obtaining mortar after tested is
155mm；
2) gravity flowing levelling mortar being stirred uniformly is paved in the basal plane for having been coated with interfacial agents, is shakeout with tooth harrow auxiliary,
It is rolled around several times with defoaming roller again；
3) it after mortar hardening drying, polishes in mortar surface, and uniform brushing blue layer aqueous dual-component
Polyurethane cover agent.
Embodiment 3
A kind of high-early-strength surfacing self-leveling floor mortar that do not crack is made of by mass percentage following raw materials according：α-half water stones
Cream 35%, β-semi-hydrated gypsum 10%, cement 15%, coarse whiting 5%, quartz sand 20.7%, silica flour 12%, retarder 0.12%,
Water-reducing agent 0.3%, redispersable latex powder 0.3%, thickening stabilizing agent 0.03%, antifoaming agent 0.2%, pigment 0.4%, titanium dioxide
Silica fibre 0.4%, waterproofing agent 0.2%, coalescents 0.35%.
The high-early-strength does not crack the preparation method of surfacing self-leveling floor mortar, includes the following steps：
1) it is 0.21 to press water and powder ratio：1, add water to stir evenly, the initial fluidity for obtaining mortar after tested is
150mm；
2) gravity flowing levelling mortar being stirred uniformly is paved in the basal plane for having been coated with interfacial agents, is shakeout with tooth harrow auxiliary,
It is rolled around several times with defoaming roller again；
3) it after mortar hardening drying, polishes in mortar surface, and uniform brushing layer of transparent aqueous double-component
Polyurethane cover agent.
Test method is with reference to JC/T1023-2007 gypsum based self-leveling mortars, shown in table 1 specific as follows：
The high-early-strength of the present invention do not crack surfacing self-leveling floor mortar have it is early strong, fast it is hard, without maintenance, it is wear-resisting, water-fast,
Formaldehydeless, easy construction, adaptable feature.The high-early-strength of the present invention surfacing self-leveling floor mortar 3h flexural strengths that do not crack reach
10Mpa, compression strength reach 30Mpa, and 28d flexural strengths reach 20Mpa, and compression strength reaches 60Mpa, the shrinking percentage of 28d
0.03%, comply fully with the performance requirement of indoor terrace finishing.The high-early-strength of the present invention does not crack surfacing self-leveling floor sand
Slurry fundamentally solves floor leveling hollowing problem of Cracking, improves construction efficiency, reduces cost.Present invention is mainly used for house,
The high-end places such as levelling in school, movie theatre, market, workshop, ground.
The above are merely the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
Under the premise of being detached from present inventive concept, several modifications and improvements can also be made, these should also be considered as the protection model of the present invention
It encloses, these all do not interfere with the effect and patent practicability that the present invention is implemented.
Claims (10)
- The surfacing self-leveling floor mortar 1. a kind of high-early-strength does not crack, which is characterized in that its be by following raw materials according by mass percentage Composition：Semi-hydrated gypsum 30-60%, cement 5-20%, coarse whiting 5-15%, quartz sand 10-30%, silica flour 10-20%, retarder 0.05- 0.25%, water-reducing agent 0.2-0.5%, redispersable latex powder 0.1-1.0%, thickening stabilizing agent 0.03-0.1%, antifoaming agent 0.1- 0.5%, pigment 0.1-0.5%, silicon dioxide fibre 0.4-1.0%, waterproofing agent 0.2-0.5%, coalescents 0.3-1.0%.
- The surfacing self-leveling floor mortar 2. high-early-strength according to claim 1 does not crack, which is characterized in that the semi-hydrated gypsum For alpha-semi water plaster stone or β-semi-hydrated gypsum, gypsum is the natural gypsum, industry by-product gypsum or synthetic gypsum.
- The surfacing self-leveling floor mortar 3. high-early-strength according to claim 2 does not crack, which is characterized in that the cement is general One or more of logical silicate 42.5 or 52.5, high alumina cement, sulphur aluminum water mud.
- The surfacing self-leveling floor mortar 4. high-early-strength according to claim 3 does not crack, which is characterized in that the mesh of the coarse whiting Number is 300 mesh, Bai Du≤85%.
- The surfacing self-leveling floor mortar 5. high-early-strength according to claim 4 does not crack, which is characterized in that the quartz sand is It is mixed by three kinds of 40-80 mesh, 80-120 mesh and 120-180 mesh, the mass ratio of three is 1：1.2-1.5：1.5-2.0, institute Stating silica flour is mixed by 800 mesh, 1250 mesh, three kinds of 3250 mesh, and three's mass ratio is 1：1-3：2-5.
- The surfacing self-leveling floor mortar 6. high-early-strength according to claim 1 does not crack, which is characterized in that described redispersible Latex powder be vinylacetate-ethylene copolymer form, for watt gram universal 328N.
- The surfacing self-leveling floor mortar 7. high-early-strength according to claim 1 does not crack, which is characterized in that the retarder is Protein-based retarder, the water-reducing agent are polycarboxylic acids powder water-reducing agent, and the thickening stabilizing agent is hydroxypropyl methyl cellulose Ether and welan gum mix, viscosity 400-600mPa.s, and the antifoaming agent is organic silicon powder antifoaming agent, the pigment For inorganic oxide iron class, the silicon dioxide fibre mesh number is 50-300 mesh, and the waterproofing agent is organic silicon, it is described at Film auxiliary agent is polyethylene glycol substances.
- The preparation method of surfacing self-leveling floor mortar 8. a kind of high-early-strength as described in claim 1-7 is any does not crack, it is special Sign is, includes the following steps：Water is added to stir evenly so that the initial fluidity of mortar is 150 ± 5mm；2）The gravity flowing levelling mortar being stirred uniformly is paved in the basal plane for having been coated with interfacial agents, is shakeout with tooth harrow auxiliary, then use Defoaming roller rolls around several times；3）After mortar hardening drying, polish in mortar surface, and uniformly brush a strata urethane cover agent.
- The preparation method of surfacing self-leveling floor mortar 9. high-early-strength according to claim 8 does not crack, which is characterized in that Step 1）In, surfacing self-leveling floor mortar is 0.19-0.21 with the mass ratio of water and raw material：1.
- The preparation method of surfacing self-leveling floor mortar 10. high-early-strength according to claim 8 does not crack, which is characterized in that In step 3）In, polyurethane cover agent is aqueous double-component polyurethane cover agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810719027.4A CN108516785A (en) | 2018-07-03 | 2018-07-03 | A kind of high-early-strength does not crack surfacing self-leveling floor mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810719027.4A CN108516785A (en) | 2018-07-03 | 2018-07-03 | A kind of high-early-strength does not crack surfacing self-leveling floor mortar and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108516785A true CN108516785A (en) | 2018-09-11 |
Family
ID=63428084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810719027.4A Pending CN108516785A (en) | 2018-07-03 | 2018-07-03 | A kind of high-early-strength does not crack surfacing self-leveling floor mortar and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108516785A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180131A (en) * | 2018-11-22 | 2019-01-11 | 贵州大学 | A kind of preparation method of gypsum based self-leveling mortar |
| CN109704679A (en) * | 2019-01-28 | 2019-05-03 | 郑州博鳌装饰材料有限公司 | The early strong Self-leveling self-compaction super performance concrete dalle of natural curing |
| CN110218068A (en) * | 2019-06-26 | 2019-09-10 | 贵州大学 | The preparation method of half water ardealite cement base phase-change accumulation energy gravity flowing levelling mortar of ground |
| CN110228989A (en) * | 2019-07-04 | 2019-09-13 | 浙江恒起新材料科技有限公司 | A kind of water-proof light permeable gypsum and preparation method thereof |
| CN110482888A (en) * | 2019-09-18 | 2019-11-22 | 贵州中能高新材料有限公司 | A method of utilizing waste standby gypsum based self-leveling mortar made of stones |
| CN111099871A (en) * | 2019-12-24 | 2020-05-05 | 同济大学 | Gypsum-based self-leveling material and application method thereof in artware |
| CN111960792A (en) * | 2020-08-26 | 2020-11-20 | 信阳市灵石科技有限公司 | Self-leveling mortar and preparation method thereof |
| 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 |
| CN112479665A (en) * | 2019-09-11 | 2021-03-12 | 韩超 | Gypsum-based floor paving system with heat preservation and heat insulation functions and construction method |
| CN113087482A (en) * | 2021-04-09 | 2021-07-09 | 浙江志强涂料有限公司 | Water-resistant gypsum-based self-leveling mortar and preparation method thereof |
| CN113511872A (en) * | 2021-03-18 | 2021-10-19 | 中建材创新科技研究院有限公司 | Gypsum ground leveling mortar and preparation method thereof |
| CN114436610A (en) * | 2020-11-02 | 2022-05-06 | 东南新材料股份有限公司 | Early-strength portland cement-based self-leveling mortar and preparation method thereof |
| CN114477869A (en) * | 2022-01-27 | 2022-05-13 | 武汉盛大长青建材有限公司 | Thick-layer leveling material and construction method thereof |
| CN114835460A (en) * | 2022-03-16 | 2022-08-02 | 重庆杰博思石膏有限公司 | Anti-cracking gypsum-based self-leveling mortar and preparation method thereof |
| CN116041017A (en) * | 2022-12-26 | 2023-05-02 | 中建西部建设新材料科技有限公司 | High-water-resistance phosphogypsum self-leveling mortar and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200616A (en) * | 2006-12-16 | 2008-06-18 | 滨州市良友防水材料有限责任公司 | Method for producing aqueous dual-component polyurethane waterproofing paint |
| CN103145392A (en) * | 2013-03-19 | 2013-06-12 | 湖北大学 | Self-levelling underlayment material |
| CN106431146A (en) * | 2016-10-09 | 2017-02-22 | 南京工业大学 | Composite gypsum-based self-leveling mortar and preparation method |
| CN107619245A (en) * | 2017-10-19 | 2018-01-23 | 宝辰永宇（滁州）新材料科技有限公司 | A kind of surfacing self-leveling floor mortar and its construction method |
-
2018
- 2018-07-03 CN CN201810719027.4A patent/CN108516785A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200616A (en) * | 2006-12-16 | 2008-06-18 | 滨州市良友防水材料有限责任公司 | Method for producing aqueous dual-component polyurethane waterproofing paint |
| CN103145392A (en) * | 2013-03-19 | 2013-06-12 | 湖北大学 | Self-levelling underlayment material |
| CN106431146A (en) * | 2016-10-09 | 2017-02-22 | 南京工业大学 | Composite gypsum-based self-leveling mortar and preparation method |
| CN107619245A (en) * | 2017-10-19 | 2018-01-23 | 宝辰永宇（滁州）新材料科技有限公司 | A kind of surfacing self-leveling floor mortar and its construction method |
Non-Patent Citations (1)
| Title |
|---|
| 郑安利等编著: "《室内涂饰装修技术》", 31 May 2000, 安徽科学技术出版社 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180131A (en) * | 2018-11-22 | 2019-01-11 | 贵州大学 | A kind of preparation method of gypsum based self-leveling mortar |
| CN109704679A (en) * | 2019-01-28 | 2019-05-03 | 郑州博鳌装饰材料有限公司 | The early strong Self-leveling self-compaction super performance concrete dalle of natural curing |
| CN110218068A (en) * | 2019-06-26 | 2019-09-10 | 贵州大学 | The preparation method of half water ardealite cement base phase-change accumulation energy gravity flowing levelling mortar of ground |
| CN110218068B (en) * | 2019-06-26 | 2022-02-18 | 贵州大学 | Preparation method of semi-hydrated phosphogypsum cement-based phase-change energy-storage self-leveling mortar for ground |
| CN110228989A (en) * | 2019-07-04 | 2019-09-13 | 浙江恒起新材料科技有限公司 | A kind of water-proof light permeable gypsum and preparation method thereof |
| CN112479665A (en) * | 2019-09-11 | 2021-03-12 | 韩超 | Gypsum-based floor paving system with heat preservation and heat insulation functions and construction method |
| CN110482888A (en) * | 2019-09-18 | 2019-11-22 | 贵州中能高新材料有限公司 | A method of utilizing waste standby gypsum based self-leveling mortar made of stones |
| CN111099871A (en) * | 2019-12-24 | 2020-05-05 | 同济大学 | Gypsum-based self-leveling material and application method thereof in artware |
| CN111099871B (en) * | 2019-12-24 | 2022-04-05 | 同济大学 | Gypsum-based self-leveling material and application method thereof in artware |
| CN111960792A (en) * | 2020-08-26 | 2020-11-20 | 信阳市灵石科技有限公司 | Self-leveling mortar and preparation method thereof |
| 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 |
| CN114436610A (en) * | 2020-11-02 | 2022-05-06 | 东南新材料股份有限公司 | Early-strength portland cement-based self-leveling mortar and preparation method thereof |
| CN113511872A (en) * | 2021-03-18 | 2021-10-19 | 中建材创新科技研究院有限公司 | Gypsum ground leveling mortar and preparation method thereof |
| CN113087482A (en) * | 2021-04-09 | 2021-07-09 | 浙江志强涂料有限公司 | Water-resistant gypsum-based self-leveling mortar and preparation method thereof |
| CN114477869A (en) * | 2022-01-27 | 2022-05-13 | 武汉盛大长青建材有限公司 | Thick-layer leveling material and construction method thereof |
| CN114835460A (en) * | 2022-03-16 | 2022-08-02 | 重庆杰博思石膏有限公司 | Anti-cracking gypsum-based self-leveling mortar and preparation method thereof |
| CN116041017A (en) * | 2022-12-26 | 2023-05-02 | 中建西部建设新材料科技有限公司 | High-water-resistance phosphogypsum self-leveling mortar and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108516785A (en) | A kind of high-early-strength does not crack surfacing self-leveling floor mortar and preparation method thereof | |
| CN109836106A (en) | Fast hard cracking resistance cement-based self-leveling mortar powder, slurry, mortar and preparation method | |
| CN109809779B (en) | Surface mortar, grindstone, plate and preparation method thereof | |
| CN108706937A (en) | A kind of sulphoaluminate cement base gravity flowing levelling mortar and preparation method thereof | |
| CN107963867A (en) | A kind of gravity flowing levelling mortar | |
| CN102910885A (en) | Wear-resistant cement mortar, wear-resistant floor and preparation method thereof | |
| CN109439054B (en) | Putty powder and putty slurry for plastering-free machine, and preparation method and application thereof | |
| CN107555918B (en) | Polymer cement mortar and preparation method and construction method thereof | |
| CN107619245A (en) | A kind of surfacing self-leveling floor mortar and its construction method | |
| CN109160779A (en) | A kind of colored mortar and preparation method thereof | |
| CN110436860A (en) | A kind of High-belite Cement facing mortar and its preparation method and application | |
| CN106495616B (en) | A kind of high-strength water-base epoxy colour self-leveling cement | |
| CN112897961A (en) | Premixed colorful pervious concrete | |
| CN109180117A (en) | A kind of concrete structure appearance chromatic difference patching material and its construction method | |
| CN110526633A (en) | A kind of concrete and its preparation method and application of light transmission and self-luminous one | |
| CN111848111A (en) | Phosphoaluminate cement-based multi-component high-performance composite terrace material | |
| CN109337483A (en) | A kind of white marble lacquer coating and preparation method thereof | |
| CN108863231A (en) | A kind of waterproof and breathable flexible clay facing tile and preparation method thereof | |
| CN114315291A (en) | Fair-faced concrete surface defect repairing material and preparation method thereof | |
| CN110590216A (en) | Permeable concrete liquid reinforcing agent and preparation method and use method thereof | |
| CN106699074A (en) | Preparation method of high strength and high toughness colored self-leveling cement | |
| CN103030346A (en) | Outer wall decorative mortar | |
| CN112299808A (en) | High-performance facing mortar and preparation method thereof | |
| CN111960792A (en) | Self-leveling mortar and preparation method thereof | |
| CN112679171B (en) | Self-leveling mortar and preparation method and application 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190426 Address after: 322000 No. 32 Jinling North Road, 23li Street, Yiwu City, Jinhua City, Zhejiang Province (self-declaration) Applicant after: Zhejiang Hengqi New Material Technology Co., Ltd. Address before: Room 239, 288 Shangbo Road, Jiangdong Street, Yiwu City, Jinhua City, Zhejiang Province, 322000 Applicant before: Yiwu Hengqi import and Export Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180911 |