CN106830851A - A kind of self-leveling cement mortar and its application based on whisker reinforcement - Google Patents

A kind of self-leveling cement mortar and its application based on whisker reinforcement Download PDF

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Publication number
CN106830851A
CN106830851A CN201710184587.XA CN201710184587A CN106830851A CN 106830851 A CN106830851 A CN 106830851A CN 201710184587 A CN201710184587 A CN 201710184587A CN 106830851 A CN106830851 A CN 106830851A
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CN
China
Prior art keywords
parts
whisker
gypsum
cement
self
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Pending
Application number
CN201710184587.XA
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Chinese (zh)
Inventor
牛全林
王兴文
徐荣平
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Jiangsu Blue Circle New Material Ltd By Share Ltd
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Jiangsu Blue Circle New Material Ltd By Share Ltd
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Priority to CN201710184587.XA priority Critical patent/CN106830851A/en
Publication of CN106830851A publication Critical patent/CN106830851A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/12Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/2015Sulfate resistance
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/23Acid resistance, e.g. against acid air or rain
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60Flooring materials
    • C04B2111/62Self-levelling compositions
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • C04B2201/52High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]

Abstract

The invention discloses a kind of self-leveling cement mortar based on whisker reinforcement, including following weight proportion component:10 20 parts of Portland cement;50 150 parts of slag powders;3 20 parts of special cement;10 20 parts of gypsum;5 10 parts of metakaolin;100 160 parts of quartz sand;1 10 parts of whisker;1 1.5 parts of water reducer;Special cement uses sulphate aluminium cement or aluminate cement;Gypsum is using one or more mixing in high strength gypsum, fluorgypsum, desulfurated plaster, citric acid gypsum;Whisker is using one or more mixing in crystal whisker of gypsum, magnesium hydroxide crystal whisker, magnesia crystal whisker, entringite whisker, calcium carbonate crystal whisker.Terrace prepared by the present invention, case hardness is high, and pressure-proof and snap-resistent intensity is high, can meet the wear-resisting requirement of most of occasions.

Description

A kind of self-leveling cement mortar and its application based on whisker reinforcement
Technical field
The present invention relates to a kind of self-leveling cement mortar based on whisker reinforcement.
Background technology
By cement mortar and the gravity flow self-leveling floor of polymer preparation in fields such as waterproof, repairing, underground garage and anticorrosions Have a wide range of applications, the need for the development of technology and engineering, the demand of various functions terrace also expands day by day, wear-resisting Cement mortar is turned into its superior anti-wear performance, pressure-proof and snap-resistent intensity higher, good shock resistance and case hardness The main selection of heavily loaded parking lot, metal-processing industry factory building etc..But the technology content of abrasion-proof terrace is higher, there is also and constructs The shortcomings of easily there is micro-crack in complexity, unstable properties, surface.
At present, in China, the document on gravity flow self-leveling floor is more, and construction technology and artistic floors preparation method are simple Single feasible, matrix strength, waterproof, gravity flow equality performance comparative maturity, but mortar surface intensity difference, crizzle etc. is asked Topic cannot be solved fundamentally.
The content of the invention
The invention aims to solve drawbacks described above present in prior art, there is provided one kind can effectively improve mortar Surface strength, it is to avoid the self-leveling cement mortar of crizzle.
In order to achieve the above object, the invention provides a kind of self-leveling cement mortar based on whisker reinforcement, including with The component of lower weight proportion:
Portland cement 10-20 parts;
Slag powders 50-150 parts;
Special cement 3-20 parts;
Gypsum 10-20 parts;
Metakaolin 5-10 parts;
Quartz sand 100-160 parts;
Whisker 1-10 parts;
Water reducer 1-1.5 parts;
Special cement uses sulphate aluminium cement or aluminate cement;Gypsum uses high strength gypsum, fluorgypsum, desulfurated plaster, lemon One or more mixing in lemon acid gypsum;Whisker uses crystal whisker of gypsum, magnesium hydroxide crystal whisker, magnesia crystal whisker, calcium alum One or more mixing in stone crystal whisker, calcium carbonate crystal whisker.
Portland cement, code name is P.O, label P.O42.5 or 52.5, preferably P.O52.5 ordinary portland cements.
Slag powders are the granulated blast-furnace slags of blast furnace ironmaking through the product after grinding, the grinding fineness of slag powders(With than table Cartographic represenation of area)Not less than 400m2/ kg, preferably 600-800m2/kg。
Metakaolin, is with kaolin (Al2O3·2SiO2·2H2O ,AS2H2) it is raw material, at 600-800 DEG C through sloughing Anhydrous aluminium silicate (the Al that the crystallization water is formed2O3·2SiO2,AS2)。
The preferred ingredient weight proportion of above-mentioned self-leveling cement mortar is:
42.5 12 parts of Portland cements;
105 parts of slag powders;
3 parts of aluminate cement;
15 parts of high strength gypsum;
9 parts of metakaolin;
150 parts of quartz sand;
Whisker(Weight proportion:Anhydrous gypsum whisker 60% and entringite whisker 40%)6 parts;
1.05 parts of polycarboxylate water-reducer.
Thickener is also included in self-leveling cement mortar of the present invention, concrete component weight proportion is:
Portland cement 10-15 parts;
Slag powders 90-150 parts;
Special cement 3-12 parts;
Gypsum 10-15 parts;
Metakaolin 5-10 parts;
Quartz sand 150-160 parts;
Whisker 6-9 parts;
Water reducer 1-1.5 parts;
Thickener 1-1.5 parts.
Preferred ingredient weight proportion is:
52.5 12 parts of Portland cements;
99 parts of slag powders;
6 parts of aluminate cement;
12 parts of high strength gypsum;
6 parts of metakaolin;
156 parts of quartz sand;
Whisker(Weight proportion:Crystal whisker of gypsum 60%, magnesium hydroxide crystal whisker 20%, calcium carbonate crystal whisker 20%)6 parts;
1.5 parts of polycarboxylate water-reducer;
1.5 parts of thickener.
Present invention also offers application of the above-mentioned self-leveling cement mortar on terrace mortar is prepared, the terrace mortar includes The component of following weight proportion:
80-90 parts of self-leveling cement mortar;
Polymer emulsion 3.5-5.5 parts;
Defoamer 0.01-0.05 parts;
Retarder 0.02-0.1 parts;
Preservative 0.01-0.03 parts;
Water 8-13.5 parts;
Polymer emulsion is selected from one or two mixing in pure-acrylic emulsion, styrene-acrylic emulsion;
Defoamer uses organic silicon defoamer;
Retarder uses tartaric acid, citric acid, sodium gluconate, preferably sodium gluconate or tartaric acid.
The preferred ingredient weight proportion of above-mentioned terrace mortar is:
85 parts of self-leveling cement mortar;
4 parts of styrene-acrylic emulsion;
0.02 part of organic silicon defoamer;
0.03 part of citric acid retarder;
0.01 part of preservative;
12.5 parts of water.
Or:
85 parts of self-leveling cement mortar;
3.5 parts of styrene-acrylic emulsion;
0.01 part of organic silicon defoamer;
0.03 part of sodium gluconate retarder;
0.01 part of preservative;
11 parts of water.
The present invention has advantages below compared to existing technology:
1st, the super sulfur cement mortar of whisker reinforcement has high-strength, low-heat, does not shrink or the characteristics of microdilatancy, is very suitable for big face Product construction, surface does not have micro-crack, and the calcium hydroxide dissociated after the hydrated cementitious is less, with excellent anti-weak acid and weak base and sulphur The performance of hydrochlorate corrosion, can make the terrace in chemical plant and other corrosivity factory buildings.
2nd, the pattern of various coordinations bright in luster can be modulated, it is the same outside and inside, there is art effect well after polishing Really, compared with artistic floors prepared by traditional organic dyestuff, color is more rich, good endurance, will not be because of abrasion and ultraviolet Irradiate and change the artistic effect of design and color.
3rd, terrace prepared by the cement mortar, case hardness is high, and pressure-proof and snap-resistent intensity is high, can meet most of occasions Wear-resisting requirement.
4th, abrasion-proof terrace uses Self-leveling construction technology, can be used for outdoor construction with Automatic Levelling, easy construction, Will not be ftractureed in strong wind and dry environment.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.
Embodiment 1
1st, the raw material proportioning of self-leveling cement mortar is as shown in table 1
The self-leveling cement mortar formula table unit of table 1:Kilogram
Wherein, whisker is by 60% crystal whisker of gypsum and 40% calcium carbonate crystal whisker(Weight proportion)Composition, is separately added into be conducive to stirring Uniformly.
It is formulated according to the self-leveling cement mortar of embodiment 1 corresponding to table 1, by Portland cement, slag powders, extraordinary water Mud, gypsum, metakaolin, water reducer and whisker powder weigh the raw material and quartz sand after above-mentioned sieving by weight ratio.
By load weighted Portland cement, slag powders, sulphate aluminium cement, gypsum, metakaolin and whisker crystal seed It is stirred;Add quartz sand to be stirred, after 10-20 minutes, the powder of about half is released from discharging opening, by powder from entering Material mouth rejoins continuation stir about 10-15 minutes.Through Quality Inspector detection it is qualified after blowing pack.Can be prepared by it is of the invention from Levelling cement mortar.
2nd, terrace mortar raw material proportioning is as shown in table 2
The terrace mortar formula table unit of table 2:Kilogram
Further, according to the retardation setting type emulsion formulations of embodiment 1 corresponding to table 2:By styrene-acrylic emulsion, defoamer, retarder and Water is weighed, and water is first added in agitated kettle, is subsequently added defoamer and retarder is stirred, and phenylpropyl alcohol is added in whipping process Emulsion, continues to stir 20 minutes.Quality Inspector is packed after having inspected.Can be prepared by retardation setting type emulsion.
Finally, 85 kilograms of self-leveling cement mortars are weighed, by mortar and the whole of above-mentioned preparation(Refer to 18.59kg)Retardation setting type After emulsion uniform stirring, once-cast is formed, levelling with scraper plate, roller froth breaking, after being polished after Surface hardened layer, you can be obtained Gravity flow self-leveling floor of the invention.
Using JC/T 985-2005《Ground cement-based self-leveling mortar》The method for being provided detected, this example 28 days rupture strength 10.5MPa of abrasion-proof terrace of preparation, compression strength is more than 50MPa within 28 days.
Embodiment 2
The self-leveling cement mortar formula table unit of table 3:Kilogram
Wherein whisker is 60% crystal whisker of gypsum and 40% entringite whisker, and both costs are relatively low, but should be separately added into, and are beneficial to mixing Uniformly.
The retardation setting type emulsion formulations list of table 4 position:Kilogram
According to the corresponding formula of table 3, self-leveling cement mortar is prepared using the method for embodiment 1;According to the corresponding formula of table 4, Retardation setting type emulsion is prepared using the method for embodiment 1.
Whole retardation setting type emulsions of 85 kilograms of self-leveling cement mortars, above-mentioned preparation are weighed, the method using embodiment 1 is entered Row prepares gravity flow self-leveling floor.
Using JC/T 985-2005《Ground cement-based self-leveling mortar》The method for being provided detected, this example 28 days rupture strengths of abrasion-proof terrace of preparation>12.5MPa.Compression strength is more than 55MPa within 28 days.
Embodiment 3
The self-leveling cement mortar formula table unit of table 5:Kilogram
Wherein, whisker is 40% crystal whisker of gypsum, 20% entringite whisker, 20% calcium carbonate crystal whisker and 20% magnesia crystal whisker(Weight is matched somebody with somebody Than), wherein magnesia crystal whisker is relatively costly, but performance raising, and the tension that can improve terrace mortar after emulsion content is reduced is strong Degree and crack resistance, above-mentioned whisker all should be separately added into, be beneficial to well mixed.
The retardation setting type emulsion formulations list of table 6 position:Kilogram
According to the corresponding formula of table 5, self-leveling cement mortar is prepared using the method for embodiment 1;According to the corresponding formula of table 6, Retardation setting type emulsion is prepared using the method for embodiment 1.
By the self-leveling cement mortar 85kg of above-mentioned preparation, whole retardation setting type emulsion of above-mentioned preparation, using embodiment 1 Method be prepared abrasion-proof terrace.
Using JC/T 985-2005《Ground cement-based self-leveling mortar》The method for being provided detected, this example 28 days rupture strengths of abrasion-proof terrace of preparation>12MPa, compression strength is more than 60MPa within 28 days.

Claims (8)

1. a kind of self-leveling cement mortar based on whisker reinforcement, it is characterised in that the component including following weight proportion:
Portland cement 10-20 parts;
Slag powders 50-150 parts;
Special cement 3-20 parts;
Gypsum 10-20 parts;
Metakaolin 5-10 parts;
Quartz sand 100-160 parts;
Whisker 1-10 parts;
Water reducer 1-1.5 parts;
The special cement uses sulphate aluminium cement or aluminate cement;The gypsum uses high strength gypsum, fluorgypsum, desulfurization One or more mixing in gypsum, citric acid gypsum;The whisker uses crystal whisker of gypsum, magnesium hydroxide crystal whisker, oxidation One or more mixing in magnesium whisker, entringite whisker, calcium carbonate crystal whisker.
2. self-leveling cement mortar according to claim 1, it is characterised in that the component including following weight proportion:
Portland cement 10-15 parts;
Slag powders 90-150 parts;
Special cement 3-12 parts;
Gypsum 10-15 parts;
Metakaolin 5-10 parts;
Quartz sand 150-160 parts;
Whisker 6-9 parts;
Water reducer 1-1.5 parts;
Thickener 1-1.5 parts.
3. self-leveling cement mortar according to claim 1, it is characterised in that the component including following weight proportion:
42.5 12 parts of Portland cements;
105 parts of slag powders;
3 parts of aluminate cement;
15 parts of high strength gypsum;
9 parts of metakaolin;
150 parts of quartz sand;
6 parts of whisker;
1.05 parts of polycarboxylate water-reducer;
The whisker is using the mixture in anhydrous gypsum whisker 60% and entringite whisker 40%;
The grinding fineness of the slag powders is 600-800m2/kg。
4. self-leveling cement mortar according to claim 2, it is characterised in that the component including following weight proportion:
52.5 12 parts of Portland cements;
99 parts of slag powders;
6 parts of aluminate cement;
12 parts of high strength gypsum;
6 parts of metakaolin;
156 parts of quartz sand;
6 parts of whisker;
1.5 parts of polycarboxylate water-reducer;
1.5 parts of thickener;
The whisker is mixed by crystal whisker of gypsum 60%, magnesium hydroxide crystal whisker 20%, calcium carbonate crystal whisker 20%;
The grinding fineness of the slag powders is 600-800m2/kg。
5. application of any described self-leveling cement mortar of Claims 1-4 on terrace mortar is prepared, it is characterised in that The terrace mortar includes the component of following weight proportion:
80-90 parts of the self-leveling cement mortar;
Polymer emulsion 3.5-5.5 parts;
Defoamer 0.01-0.05 parts;
Retarder 0.02-0.1 parts;
Preservative 0.01-0.03 parts;
Water 8-13.5 parts;
The polymer emulsion is selected from one or two mixing in pure-acrylic emulsion, styrene-acrylic emulsion;
The defoamer uses organic silicon defoamer;
The retarder uses tartaric acid, citric acid, sodium gluconate.
6. application according to claim 5, it is characterised in that:The terrace mortar includes the component of following weight proportion:
85 parts of the self-leveling cement mortar;
4 parts of styrene-acrylic emulsion;
0.02 part of organic silicon defoamer;
0.03 part of citric acid retarder;
0.01 part of preservative;
12.5 parts of water.
7. application according to claim 5, it is characterised in that:The terrace mortar includes the component of following weight proportion:
85 parts of the self-leveling cement mortar;
3.5 parts of styrene-acrylic emulsion;
0.01 part of organic silicon defoamer;
0.03 part of sodium gluconate retarder;
0.01 part of preservative;
11 parts of water.
CN201710184587.XA 2017-03-24 2017-03-24 A kind of self-leveling cement mortar and its application based on whisker reinforcement Pending CN106830851A (en)

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Application Number Priority Date Filing Date Title
CN201710184587.XA CN106830851A (en) 2017-03-24 2017-03-24 A kind of self-leveling cement mortar and its application based on whisker reinforcement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710184587.XA CN106830851A (en) 2017-03-24 2017-03-24 A kind of self-leveling cement mortar and its application based on whisker reinforcement

Publications (1)

Publication Number Publication Date
CN106830851A true CN106830851A (en) 2017-06-13

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108424170A (en) * 2018-05-22 2018-08-21 四川省劲腾环保建材有限公司 Flexible mortar and preparation method thereof for being bonded light partition wall
CN108424169A (en) * 2018-05-22 2018-08-21 四川省劲腾环保建材有限公司 Mortar and preparation method thereof of squeegeeing for handling light partition wall crack
CN109824333A (en) * 2019-03-07 2019-05-31 广西壮族自治区水利科学研究院 A kind of low alkali, enhancing concrete for plant growth cementitious material and preparation method thereof
CN110304887A (en) * 2019-03-21 2019-10-08 佛山市南海邦盾装饰材料有限公司 A kind of bicomponent cement based self-leveling mortar and preparation method thereof
CN111620623A (en) * 2020-05-20 2020-09-04 大连理工大学 Cement concrete surface material with high wear resistance and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102910885A (en) * 2011-08-01 2013-02-06 明伦建材工业(苏州)有限公司 Wear-resistant cement mortar, wear-resistant floor and preparation method thereof
CN104692755A (en) * 2015-02-02 2015-06-10 武汉理工大学 Phosphogypsum-base self-leveling material and preparation method thereof
CN105777025A (en) * 2016-03-09 2016-07-20 武汉理工大学 Light, thermal-insulating and early-strength type cement-based ground self-leveling material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102910885A (en) * 2011-08-01 2013-02-06 明伦建材工业(苏州)有限公司 Wear-resistant cement mortar, wear-resistant floor and preparation method thereof
CN104692755A (en) * 2015-02-02 2015-06-10 武汉理工大学 Phosphogypsum-base self-leveling material and preparation method thereof
CN105777025A (en) * 2016-03-09 2016-07-20 武汉理工大学 Light, thermal-insulating and early-strength type cement-based ground self-leveling material and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108424170A (en) * 2018-05-22 2018-08-21 四川省劲腾环保建材有限公司 Flexible mortar and preparation method thereof for being bonded light partition wall
CN108424169A (en) * 2018-05-22 2018-08-21 四川省劲腾环保建材有限公司 Mortar and preparation method thereof of squeegeeing for handling light partition wall crack
CN109824333A (en) * 2019-03-07 2019-05-31 广西壮族自治区水利科学研究院 A kind of low alkali, enhancing concrete for plant growth cementitious material and preparation method thereof
CN109824333B (en) * 2019-03-07 2021-07-20 广西壮族自治区水利科学研究院 Cementing material for low-alkali reinforced vegetation concrete and preparation method thereof
CN110304887A (en) * 2019-03-21 2019-10-08 佛山市南海邦盾装饰材料有限公司 A kind of bicomponent cement based self-leveling mortar and preparation method thereof
CN111620623A (en) * 2020-05-20 2020-09-04 大连理工大学 Cement concrete surface material with high wear resistance and preparation method thereof

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Application publication date: 20170613

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