CN108529994A - A kind of unitary system special cement gravity flow self-leveling floor material - Google Patents
A kind of unitary system special cement gravity flow self-leveling floor material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- 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
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- 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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
It system special cement gravity flowing levelling mortar powder and the floor material that is prepared by the powder that the present invention, which provides unitary,.With its total restatement, which contains：20 45% high belite sulphate aluminium cement, 0 20% ground slag powder, 0 15% pearl filler, 45 60% sand, 1 5% polymer emulsion powder, 0 0.15% thickener, 0 0.05% thixotropic agent, 0.05 0.30% retarder, 0.01 0.1% coagulant, 0.05 0.4% antifoaming agent and 0.1 0.3% water-reducing agent.The floor material being prepared by the powder has the characteristics that high resistance to compression flexural strength, fast hard, high-wearing feature, volume stability are good and A grades are prevented fires.
Description
Technical field
The present invention relates to gravity flow self-leveling floor materials, and in particular to high belite sulphate aluminium cement unitary system gravity flow level land
Terrace material.
Background technology
Gravity flow flat ground material is to grow up using inorganic coagulation material or organic material as base material the 1970s,
The building ground alignment material mixed with additives and fine sand etc. such as super plasticizers.Self-leveling material is different by main base material
Inorganic system can be divided into and organic system two major classes, inorganic system's self-leveling material are primarily referred to as gypsum base and cement-based self-leveling material,
Organic system self-leveling material refer mainly to epoxy self-leveling material (Li Li, Wu Fang, the application development of self-leveling material " summarize ",《Newly
Type construction material》, in April, 2006).
Cement-based self-leveling mortar is made of cement-based gelling material, fine aggregate, filler and various additives, is stirred with water
Slightly complementary spread out and put on can flow levelling ground material after mixing, and have good mobility, stability, wearability, glue
Connecing property can reduce the construction time, accelerate construction progress, and be mainly used for warehouse, workshop, house, corridor, the underground of large area
The terraces such as garage, it can also be used to need floor leveling and other ground surface finishing engineerings, be a kind of new with broad prospect of application
Type earth material.
Cement-based gelling material is the most important component part of gravity flowing levelling mortar, can be selected from Portland cement, height
Aluminum water mud and sulphate aluminium cement.Portland cement is used alone as cementitious material, because its hydrated product is intrinsic
Attribute, although the gravity flowing levelling mortar of preparation has good mobility, the early strength of mortar hardening body is relatively low, Er Qie
Later stage apparent cracking can occur because of shrinking big.It is asked to improve the early strength of gravity flowing levelling mortar and reducing later stage cracking
Topic, it is necessary to change the hydrated product type of cementitious material, therefore add suitable high alumina cement or sulphate aluminium cement etc.
Special cement.Therefore, currently, being all with Portland cement, high alumina cement, aluminium sulfate water as cement-based gelling material
Based on the binary or ternary cementitious material system of mud.For example, CN105622029A discloses a kind of cement-based self-leveling mortar,
The cement-based gelling material used is the combination of portland cement, high alumina cement and quick hardening sulphoaluminate cement.
CN103043974B discloses a kind of high abrasion cement-based self-leveling mortar, and the cement-based gelling material used is portland cement
And high alumina cement.
Polynary cementitious material system makes the preparation process of gravity flowing levelling mortar become especially complex, because of these different systems
Cement between there are certain adaptability problems so that the Properties Control of gravity flowing levelling mortar becomes relatively difficult, management cost
It increases substantially, and the higher price of high alumina cement and sulphate aluminium cement so that the manufacturing cost of gravity flowing levelling mortar is in
Under not, and influence application.
CN 106810175A disclose a kind of high belite sulphoaluminate cement base gravity flowing levelling mortar, use high Baily
Special sulphate aluminium cement and anhydrous gypsum.But it is well known in the art, lime, gypsum, cement etc. are commonly called as building for " ash " on building sites
It builds material and belongs to inorganic coagulation material.Therefore, cementitious material system disclosed in this application substantially still falls within binary system.
Invention content
The present invention provides a kind of mortar powder, and with its total restatement, which contains the high belite sulphur aluminium of 20-45%
Acid salt cement, the ground slag powder of 0-20%, the pearl filler of 0-15%, the sand of 45-60%, the polymer latex of 1-5%
Powder, the thickener of 0-0.15%, the thixotropic agent of 0-0.05%, the retarder of 0.05-0.30%, the coagulant of 0.01-0.10%,
The antifoaming agent of 0.05-0.4% and the water-reducing agent of 0.1-0.3%.
In one or more embodiments, the pearl filler is dicalcium powder, ultra-fine calcite or combinations thereof.
In one or more embodiments, the sand is calcium sand, quartz sand or combinations thereof.
In one or more embodiments, the sand is river sand.
In one or more embodiments, the thickener is cellulose ether, starch ether or combinations thereof.
In one or more embodiments, the thixotropic agent is diutan.
In one or more embodiments, the retarder is or mixtures thereof citric acid, tartaric acid, sodium citrate.
In one or more embodiments, the coagulant is lithium carbonate, lithium sulfate or combinations thereof.
In one or more embodiments, the antifoaming agent is mineral oils, non-mineral oils or combinations thereof.
In one or more embodiments, the water-reducing agent is polycarboxylate water-reducer.
In one or more embodiments, which contains the high belite sulphur of 25-45%, preferably 30-40%
Aluminate cement.
In one or more embodiments, which contains the ground slag powder of 0-20%, preferably 2-8%.
In one or more embodiments, which contains the pearl filler of 0-15%, preferably 2-10%.
In one or more embodiments, which contains the sand of 45-60%, preferably 45-55%.
In one or more embodiments, which contains the polymer emulsion powder of 1-5%.
In one or more embodiments, which contains the thickening of 0-0.15%, preferably 0.01-0.10%
Agent.
In one or more embodiments, which contains the thixotropic agent of 0-0.05%, preferably 0-0.01%.
In one or more embodiments, which contains the slow of 0.05-0.30%, preferably 0.15-0.30%
Solidifying agent.
In one or more embodiments, which is the mixture of citric acid or sodium citrate and tartaric acid,
In, which contains the citric acid of 0.02-0.10% or the tartaric acid of sodium citrate and 0.05-0.20%.
In one or more embodiments, which contains the coagulant of 0.01-0.15%.
In one or more embodiments, the coagulant is the mixture of lithium carbonate or lithium carbonate and lithium sulfate,
In, the content of lithium carbonate is 0.01-0.05%, and the content of lithium sulfate is 0-0.05%.
In one or more embodiments, which contains the antifoaming agent of 0.05-0.3%.
In one or more embodiments, which contains the water-reducing agent of 0.1-0.3%.
In one or more embodiments, which contains：The high belite sulphate aluminium cement of 20-45%,
The ground slag powder of 0-20%, the pearl filler of 0-15%, the sand of 45-60%, the polymer emulsion powder of 1-5%, 0-
0.15% thickener, the thixotropic agent of 0-0.05%, the retarder of 0.02-0.30%, 0.01-0.10% coagulant, 0.05-
0.3% antifoaming agent and the polycarboxylate water-reducer of 0.1-0.3%.
In one or more embodiments, which contains：The high belite sulphate aluminium cement of 20-45%,
The ground slag powder of 0-20%, the dicalcium powder of 0-15%, the sand of 45-60%, the polymer emulsion powder of 1-5%, 0-0.15%'s
Cellulose ether, the diutan of 0-0.05%, the citric acid or sodium citrate of 0.02-0.10% and/or the winestone of 0.08-0.20%
The mixture of acid, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3%, and
The polycarboxylate water-reducer of 0.1-0.3%.
In one or more embodiments, which contains：The high belite sulphate aluminium cement of 25-45%,
The ground slag powder of 1-10%, the pearl filler of 1-10%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-
0.12% thickener, the thixotropic agent of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%, 0.08-0.2%
Tartaric acid, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3%, and
The polycarboxylate water-reducer of 0.1-0.3%.
In one or more embodiments, which contains：The high belite sulphate aluminium cement of 25-45%,
The ground slag powder of 1-10%, the dicalcium powder of 1-10%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-0.12%
Cellulose ether, the diutan of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%, the wine of 0.08-0.2%
Stone acid, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent and 0.1- of 0.05-0.3%
0.3% polycarboxylate water-reducer.
In one or more embodiments, which contains：The high belite sulphate aluminium cement of 35-45%,
The ground slag powder of 1-5%, the pearl filler of 1-5%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-
0.10% thickener, the thixotropic agent of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%, 0.10-0.20%
Tartaric acid, the lithium carbonate of 0.01-0.10%, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
In one or more embodiments, which contains：The high belite sulphate aluminium cement of 35-45%,
The ground slag powder of 1-5%, the dicalcium powder of 1-5%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-0.10%'s
Cellulose ether, the diutan of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%, the winestone of 0.10-0.20%
Acid, the lithium carbonate of 0.01-0.10%, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
The present invention also provides a kind of mortar, the mortar include mortar powder as described herein and water, wherein mortar powder with
The weight ratio of water is 1:0.19~1:0.23.
The present invention also provides a kind of face layer, face layer includes mortar powder as described herein, or by mortar as described herein
It is prepared.
The present invention also provides a kind of product, which includes：Base material applies face as described herein layer on the substrate,
And coated in the coating on the layer of the face.
Specific implementation mode
It should be understood that in the scope of the invention, above-mentioned each technical characteristic of the invention and in below (eg embodiment) specifically
It can be combined with each other between each technical characteristic of description, to constitute preferred technical solution.
The present invention provides a kind of mortar powder, sand using high belite sulphate aluminium cement as unitary cementitious material system
Slurry and the face layer and correlated product being thus prepared.Specifically, the mortar powder of the present invention, mortar and thus preparing
Obtained face layer and correlated product is in addition to containing high belite sulphate aluminium cement as cementitious material, without containing well known in the art
Other cementitious materials, such as the common inorganic coagulation material of other types of cement, lime, gypsum and well known in the art
Organic cementitious material, such as pitch and natural or synthetic resin.
In terms of mortar powder gross weight, mortar powder of the invention contains the high belite sulphate aluminium cement of 20-45%, 0-
20% ground slag powder, the calcium carbonate filler of 0-15%, the sand of 45-60%, the polymer emulsion powder of 1-5%, 0-
0.15% thickener, the thixotropic agent of 0-0.05%, the retarder of 0.01-0.3%, the coagulant of 0.01-0.1%, 0.05-
0.4% antifoaming agent and the water-reducing agent of 0.1-0.3%.
High belite sulphate aluminium cement suitable for this paper is to utilize clinker disclosed in ZL201210022401.8,
(its content is included in a manner of applying herein adding high-performance cement special made from anhydrite and super-fine limestone powder
Herein).Commercially available high belite sulphate aluminium cement can be used to implement the present invention, the method system that this field routine can also be used
It is standby to obtain high belite sulphate aluminium cement.In general, in terms of mortar powder gross weight, the content of high belite sulphate aluminium cement can
In the range of 20-45%, preferably in the range of 25-45%, more preferably in the range of 30-40%.Certain preferred
In embodiment, the content of high belite sulphate aluminium cement is in the range of 35-45%.
The various ground slag powders that ground slag powder can be commonly used in the art are suitable for the invention, it can sand of the present invention
Content in starch material can be in the range of 0-20%.In certain embodiments, the content of ground slag powder can be in 1-15%
In the range of, or in the range of 1-10%, or in the range of 1-8%, or in the range of 2-8%.
Dicalcium powder and ultra-fine calcite can be selected from by being suitable for the invention pearl filler, or two kinds of mixing can be used
Object.In general, the content in mortar powder of the present invention is 0-15%, such as 1-10%, 2-10%, 2-8% or 1-5%.At certain
In a little embodiments, the present invention uses dicalcium powder, and content is in the range of 1-10%.It can for the granularity of calcium carbonate filler
It is determined according to its particular use.In general, the granularity of the filler is between 200-1500 mesh.
It can be this field conventionally used for the sand in gravity flowing levelling mortar, including but not limited to calcium to be suitable for the invention sand
Sand, quartz sand or combinations thereof.In certain embodiments, the present invention uses river sand.To the grain size of sand have no it is special now, can root
It is determined according to the particular use of mortar of the present invention.For example, the granularity of sand can be between 20-200 mesh.In general, the mortar powder of the present invention
Expect the sand containing 45-60%, preferably comprises the sand of 50-60%.In certain embodiments, the content of sand is 50-55%.
It is suitable for the invention the polymer emulsion powder that polymer emulsion powder can be well known in the art, content usually exists
In the range of 1-5%, such as 1-3%.
It is usually cellulose ether, starch ether or combinations thereof to be suitable for the invention thickener.In general, the content of thickener is
0-0.15%, such as 0.01-0.12%, 0.01-0.10% or 0.03-0.10%.In certain embodiments, the present invention uses
Cellulose ether is as thickener, and content is in the range of 0.03-0.10%.
It can be diutan to be suitable for the invention thixotropic agent.In general, the content of thixotropic agent is 0-0.05%, such as 0-
0.01% or 0.001-0.01%.In certain embodiments, the content of thixotropic agent is 0.001-0.008%.
It is a discovery of the invention that compound as anti-settling agent, manufactured production using thickener (especially cellulose ether) and diutan
There is the product of the more existing non-diutan class anti-settling agent of product better mobile performance and result of prevention, no isolation to be flowed without bleeding
Degree reaches 145mm or more, has better levelability.Therefore, in certain embodiments, contain in mortar powder of the invention
Thickener (especially cellulose ether) and diutan, wherein the content of thickener is 0.01-0.10%, and the content of diutan is
0.001-0.01%.
Retarder is by inhibiting or delaying hydrated cementitious speed, to reach the auxiliary agent of control material entirety setting rate.
It includes but not limited to or mixtures thereof citric acid, tartaric acid, sodium citrate to be suitable for the invention retarder.In general, retarder
Content be 0.01-0.35%, such as 0.05-0.35% or 0.12-0.30%.It is a discovery of the invention that for the unitary glue of the present invention
It is for solidifying system, tartaric acid and citric acid/sodium citrate progress is compound, it both ensure that longer operable time (about 30-40
Minute, and the prior art is only about 20-30 minutes), and fast hardware features are maintained, compression strength can reach 10-20MPa within 4 hours.
Therefore, in certain embodiments, mortar powder of the invention contains tartaric acid and citric acid/sodium citrate, wherein tartaric acid
Content be 0.05-0.2%, preferably 0.1-0.20%, the content of citric acid and/or sodium citrate is 0.02-0.10%.
Coagulant is by accelerating hydrated cementitious speed, to reach the auxiliary agent of control material entirety setting rate.It is suitable for
The coagulant of the present invention includes but not limited to lithium carbonate, lithium sulfate, calcium formate or combinations thereof.In general, the content of coagulant is
0.01-0.15%, such as 0.04-0.1%.In certain embodiments, mortar powder as described herein contains lithium carbonate as rush
Solidifying agent, content 0.01-0.10%.In certain embodiments, mortar powder as described herein contains lithium carbonate and sulfuric acid
Lithium is as coagulant, wherein the content of lithium carbonate is 0.01-0.10%, and the content of lithium sulfate is 0.01-0.08% or 0.01-
0.05%.
It is suitable for the invention the various antifoaming agent that antifoaming agent can be well known in the art, including but not limited to mineral oils
Antifoaming agent, non-mineral oils antifoaming agent, it is possible to use the combination of one or more antifoaming agent.In general, the content of antifoaming agent is
The antifoaming agent of 0.05-0.4%, such as 0.08-0.3%.
The various water-reducing agents that water-reducing agent can be well known in the art are suitable for the invention, including but not limited to polycarboxylic acids subtracts
Aqua, naphthalene water reducer, melamine class water-reducing agent, casein or combinations thereof.In general, the content of water-reducing agent is 0.1-0.3%,
Such as the water-reducing agent of 0.12-0.25%.In certain embodiments, the present invention uses polycarboxylate water-reducer.
In certain embodiments, mortar powder of the invention contains：The high belite sulphate aluminium cement of 20-45%,
The ground slag powder of 0-20%, the dicalcium powder of 0-15%, the sand of 45-60%, the polymer emulsion powder of 1-5%, 0-0.15%'s
Cellulose ether, the diutan of 0-0.05%, the citric acid or sodium citrate of 0.02-0.10% and/or the winestone of 0.08-0.20%
Acid, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent and 0.1-0.3% of 0.05-0.3%
Polycarboxylate water-reducer.
In certain embodiments, mortar powder of the invention contains：The high belite sulphate aluminium cement of 25-45%,
The ground slag powder of 1-10%, the dicalcium powder of 1-10%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-0.12%
Cellulose ether, the diutan of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%, the wine of 0.08-0.2%
The mixture of stone acid, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3%,
With the polycarboxylate water-reducer of 0.1-0.3%.
In certain embodiments, mortar powder of the invention contains：The high belite sulphate aluminium cement of 35-45%,
The ground slag powder of 1-5%, the dicalcium powder of 1-5%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-0.10%'s
Cellulose ether, the diutan of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%, the winestone of 0.10-0.20%
Acid, the lithium carbonate of 0.01-0.10%, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
In certain embodiments, mortar powder of the invention contains：The high belite sulphate aluminium cement of 25-35%,
The ground slag powder of 1-10%, the pearl filler of 1-10%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-
0.12% thickener, the citric acid or sodium citrate of 0.02-0.10%, the tartaric acid of 0.08-0.2%, 0.01-0.10%'s
Lithium carbonate, the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
In certain embodiments, mortar powder of the invention contains：The high belite sulphate aluminium cement of 25-35%,
The ground slag powder of 1-10%, the dicalcium powder of 1-10%, the sand of 50-60%, the polymer emulsion powder of 1-4%, 0.01-0.12%
Cellulose ether, the citric acid or sodium citrate of 0.02-0.10%, the tartaric acid of 0.08-0.2%, the carbonic acid of 0.01-0.10%
Lithium, the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
In certain embodiments, mortar powder of the invention is self-leveling material.
The preparation method of mortar powder of the present invention may include：By weight weigh additive, i.e., polymer emulsion powder, optionally
Thickener, thixotropic agent, retarder, coagulant, antifoaming agent and water-reducing agent, be mixed to get additive agent mixture, then press 1 weight
The mixing of the ratio of part additive and 2~4 parts by weight (such as 3 parts by weight) sand, is prepared additive premix.Then, by weight
It is more pre- than weighing high belite sulphate aluminium cement, ground slag powder, dicalcium powder, remaining sand, the premix and additive
The other additive components for not including in batch mixing are uniformly mixed the mortar powder that the present invention can be prepared.Routine can be used
Dry-mixed blender mixed.
The present invention replaces traditional aluminate cement-silicate cement using High-belite Cement unitary cementitious material system
Mud-gypsum ternary cementitious material system, avoids the problem of needing fine equilibrium between three components in ternary system, it is easier to ensure
Product quality stability, and production is simpler.
Therefore, the present invention also provides a kind of mortar, which includes mortar powder as described herein and water, wherein mortar
The weight ratio of powder and water is 1:0.19~1:0.23.In certain embodiments, which is gravity flow self-leveling floor material.
According to its different intensity, the mortar of the present invention can be made to face layer and/or bed course.Therefore, in certain embodiment party
In case, the present invention also provides a kind of face layer, face layer includes mortar powder as described herein, or is prepared by mortar as described herein
It obtains；The present invention also provides a kind of bed course, which includes mortar powder as described herein, or is prepared by mortar as described herein
It obtains.Those skilled in the art can determine that the mortar of the present invention is suitble to that face layer is made or pads according to this field conventional technical means
Layer.Especially, in certain embodiments, face layer is prepared using the mortar powder with formula as below：The high Baily of 25-45%
Special sulphate aluminium cement, the ground slag powder of 1-10%, the pearl filler of 1-10%, the sand of 50-60%, the polymerization of 1-4%
Object latex powder, the thickener of 0.01-0.12%, the thixotropic agent of 0.001-0.01%, the citric acid or citric acid of 0.02-0.10%
Sodium, the tartaric acid of 0.08-0.2%, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, 0.05-0.3%
Antifoaming agent and 0.1-0.3% polycarboxylate water-reducer；Preferably, which contains：The high belite sulphur of 35-45%
Aluminate cement, the ground slag powder of 1-5%, the pearl filler of 1-5%, the sand of 50-60%, the polymer latex of 1-4%
Powder, the thickener of 0.01-0.10%, the thixotropic agent of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%,
The tartaric acid of 0.10-0.20%, the lithium carbonate of 0.01-0.10%, the antifoaming agent of 0.05-0.3% and the poly- carboxylic of 0.1-0.3%
Sour water-reducing agent.
In certain embodiments, bed course is prepared using the mortar powder with formula as below：The high belite of 25-35%
Sulphate aluminium cement, the ground slag powder of 1-10%, the pearl filler of 1-10%, the sand of 50-60%, the polymer of 1-4%
Latex powder, the thickener of 0.01-0.12%, the citric acid or sodium citrate of 0.02-0.10%, the tartaric acid of 0.08-0.2%,
The lithium carbonate of 0.01-0.10%, the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3% and the poly- carboxylic of 0.1-0.3%
Sour water-reducing agent；Preferably, which contains：The high belite sulphate aluminium cement of 25-35%, the ground slag of 1-10%
Powder, the dicalcium powder of 1-10%, the sand of 50-60%, the polymer emulsion powder of 1-4%, the cellulose ether of 0.01-0.12%, 0.02-
0.10% citric acid or sodium citrate, the tartaric acid of 0.08-0.2%, the lithium carbonate of 0.01-0.10%, 0.01-0.05%'s
Lithium sulfate, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
In certain embodiments, the present invention provides a kind of self-leveling mud layer, which can only be described herein
Face layer, or be only bed course, or include the cement layer of bed course knead dough layer.
The present invention also provides a kind of product, which includes：Base material applies Self-leveling as described herein on the substrate
Cement layer (such as face layer), and coated in the coating on the self-leveling mud layer (such as face layer).
The cement self-leveling material of the present invention has the characteristics that：
(1) there is high resistance to compression flexural strength, can reach the compression strength of C40 grades and the flexural strength of F10, can be used as face
Layer material is for fields such as factory, warehouse, parking lot, markets；
(2) have the characteristics that fast hard, intensity can reach 10MPa-20MPa within 4 hours, be suitble to ground rapid construction；
(3) there is high-wearing feature, wear-resisting numerical value can be less than 150mm3(JC/T 985-2017 methods) is suitable for wear-resisting journey
Spend more demanding ground；
(4) volume stability is good, and drying shrinkage value is less than 0.05% within 28 days, and long-term drying and watering cycle size changing rate is less than
0.05%, it can effectively resist caused by dry and wet is followed badly and crack, flake；
(5) have the characteristics that A grades of fire prevention, be suitable for the occasion that the high fire-protection rates such as underground garage require.
The present invention will be hereafter illustrated in a manner of specific embodiment.It should be understood that these embodiments are only illustrative, and
Not intended to limit the scope of the present invention.Used various raw materials in embodiment.Unless otherwise stated, conventional for this field
Commercially available acquisition raw material.
Embodiment 1
Formula shown according to the form below 1 weigh polymer emulsion powder, cellulose ether, diutan, citric acid, tartaric acid, lithium carbonate,
Antifoaming agent and polycarboxylate water-reducer, are mixed to get additive agent mixture, with the 1 parts by weight additive agent mixture and 3 parts by weight sand
Mixing, obtains additive premix.High belite sulphate aluminium cement, ground slag powder, dicalcium powder are weighed by formula shown in table 1
It with remaining sand, is uniformly mixed with the additive premix, mortar powder is prepared.It is mixed using dry-mixed blender.
By 1 parts by weight mortar powder：Mortar powder and water are stirred into mortar by the ratio of 0.21 parts by weight water.
Table 1
Embodiment 2
Formula shown according to the form below 2 weigh polymer emulsion powder, cellulose ether, citric acid, tartaric acid, lithium sulfate, lithium carbonate,
Antifoaming agent and polycarboxylate water-reducer, are mixed to get additive agent mixture, with the 1 parts by weight additive agent mixture and 3 parts by weight sand
Mixing, obtains additive premix.High belite sulphate aluminium cement, ground slag powder, dicalcium powder are weighed by formula shown in table 1
It with remaining sand, is uniformly mixed with the additive premix, mortar powder is prepared.It is mixed using dry-mixed blender.
By 1 parts by weight mortar powder：Mortar powder and water are stirred into mortar by the ratio of 0.20 parts by weight water.
Table 2
Test case 1
According to the cement-based self-leveling mortar that JC/T985-2017 testing example 1 and 2 is prepared, as a result such as 3 institute of table
Show.
Table 3
Comparative example 1
Each pulvis raw material components are weighed by following weight：High belite sulphate aluminium cement 750g；Dicalcium powder 290g；River sand
900g；Polymer emulsion powder 40g；Polycarboxylate water-reducer 7g；Antifoaming agent 7g；Cellulose ether 2g；Tartaric acid 3g；Lithium carbonate 1g, altogether
Count 2000g.
Mortar powder is prepared by 1 the method for embodiment, mixed with the ratio of 1 parts by weight mortar powder, 0.21 parts by weight water
Mortar is prepared in conjunction.
Comparative example 2
Mortar is prepared according to the formula of comparative example 1, but high belite sulphate aluminium cement is replaced with High-belite Cement.
Test case 2
According to the cement-based self-leveling mortar that JC/T985-2017 test comparisons example 1 and 2 is prepared, as a result such as 4 institute of table
Show.
Table 4
Comparative example 3
Each pulvis raw material components are weighed by following weight：Portland cement 472g；Aluminate cement 166g, anhydrite 92g,
Dicalcium powder 388g；River sand 812.8g；Polymer emulsion powder 40g；Polycarboxylate water-reducer 5g；Antifoaming agent 3g；Stabilizer 3g；Citric acid
3.2g；Lithium carbonate 2g；Economization agent 13g.Total 2000g.
Mortar powder is prepared by 1 the method for embodiment, mixed with the ratio of 1 parts by weight mortar powder, 0.20 parts by weight water
Mortar is prepared in conjunction.
Comparative example 4
Each pulvis raw material components are weighed by following weight：Portland cement 370g；Aluminate cement 230g, anhydrite
130g, dicalcium powder 388g；River sand 812.6g；Polymer emulsion powder 40g；Polycarboxylate water-reducer 5g；Antifoaming agent 3g；Stabilizer 3g；
Citric acid 3.4g；Lithium carbonate 2g；Economization agent 13g.Total 2000g.
Mortar powder is prepared by 1 the method for embodiment, mixed with the ratio of 1 parts by weight mortar powder, 0.20 parts by weight water
Mortar is prepared in conjunction.
Comparative example 5
Each pulvis raw material components are weighed by following weight：Portland cement 226g；Aluminate cement 360g, semi-hydrated gypsum
144g, dicalcium powder 388g；River sand 826.8g；Polymer emulsion powder 40g；Polycarboxylate water-reducer 5g；Antifoaming agent 3g；Stabilizer 3g；
Citric acid 2.2g；Lithium carbonate 2g.Total 2000g.
Mortar powder is prepared by 1 the method for embodiment, mixed with the ratio of 1 parts by weight mortar powder, 0.20 parts by weight water
Mortar is prepared in conjunction.
Test case 3
According to the cement-based self-leveling mortar that JC/T985-2017 test comparisons example 3,4 and 5 is prepared, as a result such as table 5
It is shown.
Table 5
Claims (10)
1. a kind of mortar powder, which is characterized in that with its total restatement, which contains：
The high belite sulphate aluminium cement of 20-45%,
The ground slag powder of 0-20%,
The pearl filler of 0-15%,
The sand of 45-60%,
The polymer emulsion powder of 1-5%,
The thickener of 0-0.15%,
The thixotropic agent of 0-0.05%,
The retarder of 0.05-0.30%,
The coagulant of 0.01-0.15%,
The antifoaming agent of 0.05-0.4%, and
The water-reducing agent of 0.1-0.3%.
2. mortar powder as described in claim 1, which is characterized in that the mortar powder has following one or more spies
Sign：
The pearl filler is dicalcium powder, ultra-fine calcite or combinations thereof；
The sand is calcium sand, quartz sand or combinations thereof；
The thickener is cellulose ether, starch ether or combinations thereof；
The thixotropic agent is diutan；
The retarder is or mixtures thereof citric acid, tartaric acid, sodium citrate；
The coagulant is lithium carbonate, lithium sulfate or combinations thereof；
The antifoaming agent is mineral oils, non-mineral oils or combinations thereof；With
The water-reducing agent is polycarboxylate water-reducer.
3. mortar powder as claimed in claim 1 or 2, which is characterized in that the mortar powder has following one or more
Feature：
The mortar powder contains the high belite sulphate aluminium cement of 25-45%, preferably 30-40%；
The mortar powder contains the ground slag powder of 0-20%, preferably 2-8%；
The mortar powder contains the pearl filler of 0-15%, preferably 2-10%；
The mortar powder contains the sand of 45-60%；
The mortar powder contains the polymer emulsion powder of 1-5%；
The mortar powder contains the thickener of 0.00-0.15%, preferably 0.01-0.10%；
The mortar powder contains the thixotropic agent of 0-0.01%, preferably 0.001-0.01%；
The mortar powder contains the retarder of 0.05-0.30%, preferably 0.15-0.30%；Preferably, which is selected from：Lemon
Or mixtures thereof lemon acid or sodium citrate, tartaric acid；Preferably, which contains the citric acid or lemon of 0.02-0.10%
The tartaric acid of lemon acid sodium and 0.05-0.20%；
The mortar powder contains the coagulant of 0.01-0.15%, it is preferable that the coagulant is lithium carbonate or lithium carbonate and lithium sulfate
Mixture, wherein the content of lithium carbonate is 0.01-0.10%, and the content of lithium sulfate is 0.01-0.05%；
The mortar powder contains the antifoaming agent of 0.05-0.30%；With
The mortar powder contains the water-reducing agent of 0.10-0.30%.
4. mortar powder as described in claim 1, which is characterized in that the mortar powder contains：The high belite sulphur of 20-45%
Aluminate cement, the ground slag powder of 0-20%, the pearl filler of 0-15%, the sand of 45-60%, the polymer breast of 1-5%
Rubber powder, the thickener of 0-0.15%, the thixotropic agent of 0-0.05%, the retarder of 0.02-0.30%, 0.01-0.10% coagulant,
The antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%；
Preferably, which contains：The high belite sulphate aluminium cement of 20-45%, the ground slag powder of 0-20%, 0-
15% dicalcium powder, the sand of 45-60%, the polymer emulsion powder of 1-5%, the cellulose ether of 0-0.15%, 0-0.05%, preferably
The diutan of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10% and/or the tartaric acid of 0.08-0.20%,
The mixture of the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent and 0.1- of 0.05-0.3%
0.3% polycarboxylate water-reducer.
5. mortar powder as described in claim 1, which is characterized in that the mortar powder contains：The high belite sulphur of 25-45%
Aluminate cement, the ground slag powder of 1-10%, the pearl filler of 1-10%, the sand of 50-60%, the polymer breast of 1-4%
Rubber powder, the thickener of 0.01-0.12%, the thixotropic agent of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%,
The tartaric acid of 0.08-0.2%, the lithium carbonate of 0.01-0.10% and/or the lithium sulfate of 0.01-0.05%, 0.05-0.3%'s disappears
The polycarboxylate water-reducer of infusion and 0.1-0.3%；
Preferably, which contains：The high belite sulphate aluminium cement of 25-45%, the ground slag powder of 1-10%, 1-
10% dicalcium powder, the sand of 50-60%, the polymer emulsion powder of 1-4%, the cellulose ether of 0.01-0.12%, 0.001-
0.01% diutan, the citric acid or sodium citrate of 0.02-0.10% and/or the tartaric acid of 0.08-0.20%, 0.01-
The mixture of 0.10% lithium carbonate and/or the lithium sulfate of 0.01-0.05%, the antifoaming agent and 0.1-0.3% of 0.05-0.3%
Polycarboxylate water-reducer.
6. mortar powder as described in claim 1, which is characterized in that the mortar powder contains：The high belite sulphur of 35-45%
Aluminate cement, the ground slag powder of 1-5%, the pearl filler of 1-5%, the sand of 50-60%, the polymer latex of 1-4%
Powder, the thickener of 0.01-0.10%, the thixotropic agent of 0.001-0.01%, the citric acid or sodium citrate of 0.02-0.10%,
The tartaric acid of 0.10-0.20%, the lithium carbonate of 0.01-0.10%, the antifoaming agent of 0.05-0.3% and the poly- carboxylic of 0.1-0.3%
Sour water-reducing agent；
Preferably, which contains：The high belite sulphate aluminium cement of 35-45%, the ground slag powder of 1-5%, 1-
5% dicalcium powder, the sand of 50-60%, the polymer emulsion powder of 1-4%, the cellulose ether of 0.01-0.10%, 0.001-
0.01% diutan, the citric acid or sodium citrate of 0.02-0.10%, the tartaric acid of 0.10-0.20%, 0.01-0.10%
Lithium carbonate, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
7. mortar powder as described in claim 1, which is characterized in that the mortar powder contains：The high belite sulphur of 25-35%
Aluminate cement, the ground slag powder of 1-10%, the pearl filler of 1-10%, the sand of 50-60%, the polymer breast of 1-4%
Rubber powder, the thickener of 0.01-0.12%, the citric acid or sodium citrate of 0.02-0.10%, the tartaric acid of 0.08-0.2%,
The lithium carbonate of 0.01-0.10%, the lithium sulfate of 0.01-0.05%, the antifoaming agent of 0.05-0.3% and the poly- carboxylic of 0.1-0.3%
Sour water-reducing agent；
Preferably, which contains：The high belite sulphate aluminium cement of 25-35%, the ground slag powder of 1-10%, 1-
10% dicalcium powder, the sand of 50-60%, the polymer emulsion powder of 1-4%, the cellulose ether of 0.01-0.12%, 0.02-
0.10% citric acid or sodium citrate, the tartaric acid of 0.08-0.2%, the lithium carbonate of 0.01-0.10%, 0.01-0.05%'s
Lithium sulfate, the antifoaming agent of 0.05-0.3% and the polycarboxylate water-reducer of 0.1-0.3%.
8. a kind of mortar, which includes the mortar powder and water described in any one of claim 1-7, wherein mortar powder
Weight ratio with water is 1:0.19~1:0.23.
9. a kind of self-leveling mud layer, which includes the mortar powder described in any one of claim 1-7, or
It is prepared by the mortar described in claim 7.
10. a kind of product, the product include：Base material applies the self-leveling mud layer described in claim 9 on the substrate,
And coated in the coating on the self-leveling mud layer.
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