CN106336182A - Self-leveling rapid-hardening early-strength repair mortar and preparation method and application method thereof - Google Patents
Self-leveling rapid-hardening early-strength repair mortar and preparation method and application method thereof Download PDFInfo
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- CN106336182A CN106336182A CN201610681102.3A CN201610681102A CN106336182A CN 106336182 A CN106336182 A CN 106336182A CN 201610681102 A CN201610681102 A CN 201610681102A CN 106336182 A CN106336182 A CN 106336182A
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- leveling
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- rapid hardening
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building 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
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses self-leveling rapid-hardening early-strength repair mortar, which comprises the following ingredients (by weight): 50-60 parts of quartz sand, 25-30 parts of sulphoaluminate cement, 10-15 parts of gypsum, 0.2-1 part of lithium carbonate, 0.1-0.3 part of sodium tartrate and 0.4-0.6 part of a polycarboxylate-type water reducer dry-powder. The invention has the following beneficial effects: the repair mortar has a self-leveling function as well as rapid-hardening and early-strength characteristics, and can help shorten construction period and reduce labor cost.
Description
Technical field
The present invention relates to field of mortar, particularly to a kind of Self-leveling rapid hardening early-strength repairing mortar and preparation method thereof with make
Use method.
Background technology
The Chinese patent of Publication No. cn102432255a discloses a kind of cement-based self-leveling mortar.This mortar is common
Add the high special cement of early strength in portland cement, and and multiple early strength agent and retarder interworking so that mortar
Operable time is long, and setting time is short, and early strength is high.High molecular polymer is with the addition of in mortar, this high molecular polymer
Film formation time is short, and performance is good, can greatly lift the smooth and flatness of the mortar surface after Self-leveling condenses, improve mortar
Wearability.In order to compensate the volume contraction of hydrated cementitious generation, add economization agent and swelling agent in mortar, greatly reduce
The phenomenon such as produced crackle and cracking after mortar hardening.
Content of the invention
It is an object of the invention to provide a kind of Self-leveling rapid hardening early-strength repairing mortar.This mending mortar not only possesses automatic stream
Flat function, and have the characteristics that rapid hardening, morning are strong, being capable of reduction of erection time and reduction cost of labor.
The above-mentioned technical purpose of the present invention has the technical scheme that
A kind of Self-leveling rapid hardening early-strength repairing mortar, including the component of following parts by weight:
Quartz sand 50-60 part
Sulphate aluminium cement 25-30 part
Gypsum 10-15 part
Lithium carbonate 0.2-1 part
Sodium tartrate 0.1-0.3 part
Poly carboxylic acid series water reducer dry powder 0.4-0.6 part.
By adopting technique scheme, quartz sand is quartz through the broken quartz particles processing.Quartz is also
Claim silica, be that a kind of quality is hard, wear-resisting, stable chemical nature silicates mineral.Quartz sand is in gravity flowing levelling mortar
Gather materials, play the effect of skeleton.Quartz sand has corner angle, is unfavorable for flowing, preferable with the bonding of cement, and wearability is good, intensity
High.Sulphate aluminium cement has the characteristics that morning is strong, high-strength, and anti-freezing property and corrosion resisting property are good, and anti-permeability performance is high.Aluminium sulfate water
Mud can not form passivating film due to basicity low (ph≤11), rebar surface, therefore unfavorable to protection reinforcing bar.Coagulation in early stage mix
In soil, due to containing more air and moisture, therefore making concrete reinforcement early stage have slight corrosion.Increase with age, empty
Gas and moisture gradually decrease and disappear.Because xoncrete structure densification is so later stage corrosion situation no substantially develops.Gypsum can be controlled
The hydration rate of cement processed, adjusts setting time, improves early strength, reduces dry-shrinkage deformed, improves durability of cement etc..Carbon
Sour lithium can substantially accelerate concrete coagulating time, improves concrete subzero temperature strength growth rate, changes inside concrete pore structure
Distribution, reduce concrete total void rate and make concrete mix carbonate after anti-permeability performance increase.Sodium tartrate energy
Enough adjust the setting time of mortar, so that mortar can be held essentially constant in the fluidity of early stage.Poly carboxylic acid series water reducer
Dry powder has peptizaiton to cement granules, can improve its workability, reduces unit consumption of water, improves the mobility of mortar.
The present invention is further arranged to: according to weight portion, also includes AEO 0.5-0.8 part.
By adopting technique scheme, AEO is a most important class nonionic surfactant.
Ehter bond in molecule is difficult to be destroyed by acid, alkali, so stability is higher, water-soluble preferably, electrolyte-resistant it is easy to biodegradable,
Foam is little, good with the compatibility of other surfaces activating agent.Evaporation and violent hydration reaction that high surface/volume leads to
The significant chemical shrinkage of mortar can be caused to make it be also easy to produce shrinkage cracking.AEO can reduce pore solution
Surface tension suppressing the contraction of mortar, because its Reducing Process is not rely on water, therefore for the contraction under dry environment
There is more preferable inhibitory action.
The present invention is further arranged to: according to weight portion, also includes water-loss reducer 0.03-0.05 part.
By adopting technique scheme, water-loss reducer ensure that mortar has enough water holding capacities, prevents moisture
Transition evaporation and the water suction of basic unit and ftracture and reduce the intensity of mortar.
The present invention is further arranged to: described water-loss reducer is carboxyl alkyl cellulose, and described alkyl selects the saturation alkane of c1-c4
Base.
By adopting technique scheme, the sodium salt of cellulose carboxyalkyl ether, belong to anionic cellulose ether, for white or
Milky fibrous powder or particle, have hygroscopicity.Very stable in alkaline solution, meet acid then facile hydrolysis.Ph is in 3-11 scope
When interior, the viscosity of carboxyl alkyl cellulose is with the fluctuation of ph value less.
The present invention is further arranged to: according to weight portion, also includes redispersable latex powder 4-6 part.
By adopting technique scheme, mortar is fragile material, and fracture toughness is low, and hydrated reaction of cement is easily in structure
Portion forms micro-crack and macroscopic cracking, cementitiousness difference in practice it has proved that, the effective ways of improvement are to add Redispersable latex
Powder.Redispersable latex powder is typically the white powder with dry flow property of white.Redispersable latex powder is especially protected
To the affine of water and increased the viscosity of slurry during colloidal dispersions, improve the cohesive force of construction mortar.
The present invention is further arranged to: described redispersable latex powder selects ethylene-vinyl acetate copolymer, propylene
One of acid-hydroxypropyl acrylate copolymer.
By adopting technique scheme, ethylene-vinyl acetate copolymer and acrylic acid-acrylic acid hydroxypropyl ester copolymer
It is respectively provided with extremely prominent adhesion strength, improves the flexibility of mortar and have the longer open hour, give mortar excellent alkali resistance,
Improve outside adhesive binder, rupture strength, water proofing property, plasticity, anti-wear performance and the application property of mortar, in flexible break resistant sand
Stronger pliability is had more in slurry.
The present invention is further arranged to: according to weight portion, also includes defoamer 0.6-1 part.
By adopting technique scheme, mortar is used for laying ground, and construction thickness of thin is it is desirable to have less bubble.
Because mortar has had certain air content, after mixing polymer and other additives, air content can increase, and in mortar
Middle use defoamer, can reduce the generation of bubble.Add defoamer that the surface tension of bubble film in system can be made to raise, lose
Self-regeneration is gone to act on, viscosity reduces, and the mechanical balance ultimately resulting in this liquid film is destroyed and makes lather collapse, reaches froth breaking
Purpose.
The present invention is further arranged to: described defoamer selects dimethyl silicone polymer, fluorosilicone, ethylene glycol siloxanes
One of.
By adopting technique scheme, dimethyl silicone polymer, fluorosilicone, ethylene glycol siloxanes are silicone
Defoamer.It is nonvolatile oily liquids under normal temperature, insoluble in water, vegetable and animals oils and mineral oil, or solubility very little, can
High temperature resistant, also low-temperature-resistant.Chemical property inertia, physical stable performance, inactive.
Another goal of the invention of the present invention is to provide a kind of preparation method of Self-leveling rapid hardening early-strength repairing mortar, including such as
Lower step:
Stepl: according to weight portion, weigh quartz sand 50-60 part, sulphate aluminium cement 25-30 part, gypsum 10-15 part, lithium carbonate
0.2-1 part, sodium tartrate 0.1-0.3 part, poly carboxylic acid series water reducer dry powder 0.4-0.6 part, AEO 0.5-0.8
Part, water-loss reducer 0.03-0.05 part, redispersable latex powder 4-6 part, defoamer 0.6-1 part；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
By adopting technique scheme, each component can be sufficiently mixed, and promote each component can interact, send out
Wave interaction.
The present invention also has a goal of the invention to be to provide a kind of using method of Self-leveling rapid hardening early-strength repairing mortar, including
Following steps:
Step 1: polishing ground, the place of local crowning is polished, after polishing, clears up ground；
Step 2: ethylene-vinyl acetate copolymer is equably applied on the ground；
Step 3: according to weight than Self-leveling rapid hardening early-strength repairing mortar: water=5: 1 by Self-leveling rapid hardening early-strength repairing mortar and
Water is mixed, and is uniformly mixing to obtain slurry；
Step 4: by slurry on the ground, shakeout, treat that it is certainly flat and parches.
By adopting technique scheme, make mortar on ground to be onstructed can Self-leveling, there is rapid hardening, morning simultaneously
Strong feature, reduction of erection time and reduction cost of labor.
In sum, the method have the advantages that
1st, the ph of mortar is too low, rebar surface can be led to cannot to form passivating film, be unfavorable for the protection of reinforcing bar.But when ph is higher than 11
When, the viscosity of carboxyl alkyl cellulose declines, and so that the adhesion strength of mortar is reduced.Lithium carbonate in the present invention as early strength agent, such as
Fruit ph value is too small, and lithium carbonate will be led to produce co2Decompose, cause early strong effect to weaken, and make increased air bubble in mortar.Cause
This, in the present invention, the ph regulation and control of mortar are particularly important.There is carboxyl in carboxyl alkyl cellulose, a small amount of matter can be ionized out
Sub- hydrogen, and sodium tartrate is as salt of weak acid, can be in conjunction with proton hydrogen.The compounding use of carboxyl alkyl cellulose and sodium tartrate can
The effect of stability maintenance is played to the ph of the present invention, so that the performance of each component is given full play to；
2nd, the present inventor is by being optimized design to the component of mortar and proportioning, and by the preparation method of mortar and use
Method is optimized design, the practical effect of reinforced mortar.
Specific embodiment
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but as long as at this
All protected by Patent Law in the right of invention.
Embodiment 1-6 is the preparation embodiment of Self-leveling rapid hardening early-strength repairing mortar.
Embodiment 1
Step1: according to weight portion, weigh 60 parts of quartz sand, 24 parts of sulphate aluminium cement, 10 parts of gypsum, 0.2 part of lithium carbonate, wine
Stone 0.3 part of sodium of acid, 0.45 part of poly carboxylic acid series water reducer dry powder, 0.6 part of AEO, carboxymethylcellulose calcium 0.03
Part, 4 parts of ethylene-vinyl acetate copolymer, 0.6 part of dimethyl silicone polymer；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
Embodiment 2
Step1: according to weight portion, weigh 58 parts of quartz sand, 22 parts of sulphate aluminium cement, 12 parts of gypsum, 1 part of lithium carbonate, winestone
0.25 part of sour sodium, 0.55 part of poly carboxylic acid series water reducer dry powder, 0.8 part of AEO, carboxyethyl cellulose 0.035
Part, acrylic acid-acrylic 5 parts of hydroxypropyl ester copolymer of acid, 0.7 part of fluorosilicone；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
Embodiment 3
Step1: according to weight portion, weigh 55 parts of quartz sand, 20 parts of sulphate aluminium cement, 13 parts of gypsum, 0.8 part of lithium carbonate, wine
Stone acid 0.2 part of sodium, 0.5 part of poly carboxylic acid series water reducer dry powder, 0.7 part of AEO, 0.04 part of carboxy-propyl cellulose,
6 parts of ethylene-vinyl acetate copolymer, 0.8 part of ethylene glycol siloxanes；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
Embodiment 4
Stepl: according to weight portion, weigh 53 parts of quartz sand, 27 parts of sulphate aluminium cement, 15 parts of gypsum, 0.6 part of lithium carbonate, wine
Stone 0.15 part of sodium of acid, 0.4 part of poly carboxylic acid series water reducer dry powder, 0.5 part of AEO, carboxylic isopropyl cellulose
0.045 part, acrylic acid-acrylic acid 5 parts of hydroxypropyl ester copolymer, 0.9 part of dimethyl silicone polymer；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
Embodiment 5
Stepl: according to weight portion, weigh 50 parts of quartz sand, 30 parts of sulphate aluminium cement, 14 parts of gypsum, 0.4 part of lithium carbonate, wine
Stone acid 0.1 part of sodium, 0.6 part of poly carboxylic acid series water reducer dry powder, 0.9 part of AEO, 0.05 part of carboxylic butyl cellulose,
4 parts of ethylene-vinyl acetate copolymer, 1 part of fluorosilicone；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
Embodiment 6
Step1: according to weight portion, weigh 50 parts of quartz sand, 30 parts of sulphate aluminium cement, 14 parts of gypsum, 0.4 part of lithium carbonate, wine
Stone 0.1 part of sodium of acid, 0.6 part of poly carboxylic acid series water reducer dry powder；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
Embodiment 7 is the use embodiment of Self-leveling rapid hardening early-strength repairing mortar.
Embodiment 1-6 all can use Self-leveling rapid hardening early-strength repairing mortar according to the step of embodiment 7.
Embodiment 7
Step 1: polishing ground, the place of local crowning is polished, after polishing, clears up ground；
Step 2: ethylene-vinyl acetate copolymer is equably applied on the ground；
Step 3: according to weight than Self-leveling rapid hardening early-strength repairing mortar: water=5: 1 by Self-leveling rapid hardening early-strength repairing mortar and
Water is mixed, and is uniformly mixing to obtain slurry；
Step 4: by slurry on the ground, shakeout, treat that it is certainly flat and parches.
With reference to jc/t 985-2005 ground with cement-based self-leveling mortar measure embodiment 1-6 initial flow degree,
20min fluidity, 2h compression strength, 4h compression strength, 24h compression strength, 24h adhesion strength.
Measure embodiment with reference to gb/t1346-2011 cement normal consistency water consumption, setting time, the stability method of inspection
The presetting period of 1-6 and final setting time.
Table 1 embodiment 1-6 performance test record sheet
Note: the presetting period refers to that cement plus water mixes and stirs cement mortar and starts to lose the plastic time；Final setting time refers to cement
Add water mix and stir cement mortar lose completely plasticity and start produce intensity time.
As known from Table 1, the fluidity of embodiment 1-6 is big, setting time is short, compression strength and adhesion strength are big.Meanwhile, real
Apply the indexs such as fluidity, setting time, compression strength and the adhesion strength of example 6 and be all inferior to embodiment 1-5 it is seen that fatty alcohol polyoxy
The addition of vinethene, carboxyl alkyl cellulose, redispersable latex powder and defoamer can improve the present invention in fluidity, condensation
Between, the performance such as compression strength and adhesion strength.And in embodiment 1-5, the fluidity of embodiment 3, setting time, compression strength
Optimal with adhesion strength performance.
Comparative example 1
Embodiment 3 as a comparison case 1 from the Chinese patent of Publication No. cn102432255a.
Comparative example 2
Difference with embodiment 3 is to remove sodium tartrate, and other are all same as Example 3.
Comparative example 3
Difference with embodiment 3 is to remove carboxy-propyl cellulose, and other are all same as Example 3.
Comparative example 4
Difference with embodiment 4 is to remove sodium tartrate and carboxy-propyl cellulose simultaneously, and other are all same as Example 3.
Measure the initial flow of embodiment 3 and comparative example 1-4 with reference to jc/t 985-2005 ground with cement-based self-leveling mortar
Dynamic degree, 20min fluidity, 2h compression strength, 4h compression strength, 24h compression strength, 24h adhesion strength.
Measure embodiment with reference to gb/t1346-2011 cement normal consistency water consumption, setting time, the stability method of inspection
3 and presetting period of comparative example 1-4 and final setting time.
Table 2 embodiment 3 and comparative example 1-4 performance test record sheet
| Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Initial flow degree/mm | 208 | 175 | 208 | 199 | 199 |
| 20min fluidity/mm | 201 | 170 | 177 | 190 | 174 |
| Presetting period/min | 40 | 60 | 25 | 40 | 25 |
| Final setting time/min | 60 | 160 | 60 | 60 | 60 |
| 2h compression strength/mpa | 17 | 9 | 14 | 12 | 11 |
| 4h compression strength/mpa | 30 | 18 | 25 | 23 | 22 |
| 24h compression strength/mpa | 50 | 38.5 | 46 | 44 | 42 |
| 24h adhesion strength/mpa | 2.5 | 1.2 | 2.0 | 1.8 | 1.7 |
Note: the presetting period refers to that cement plus water mixes and stirs cement mortar and starts to lose the plastic time；Final setting time refers to cement
Add water mix and stir cement mortar lose completely plasticity and start produce intensity time.
Can be concluded that from table 2
Comparative example 3 and comparative example 1 understand, embodiment 3 is in initial flow degree, 20min fluidity, presetting period, final set
Between, the performance in 2h compression strength, 4h compression strength, 24h compression strength and 24h adhesion strength be superior to comparative example 1.
Comparative example 3 and comparative example 2-4 understand, sodium tartrate and carboxy-propyl cellulose all can improve 2h pressure resistance
Degree, the performance such as 4h compression strength, 24h compression strength, 24h adhesion strength.But, when sodium tartrate and carboxy-propyl cellulose are worked in coordination with
During use, the raising effect for indexs such as 2h compression strength, 4h compression strength, 24h compression strength, 24h adhesion strengths is more than
Sodium tartrate and carboxy-propyl cellulose each carry to 2h compression strength, 4h compression strength, 24h compression strength, 24h adhesion strength
High effect sum.It can be seen that, in the present invention, can interact between sodium tartrate and carboxy-propyl cellulose, strengthen the present invention
Compression strength, adhesion strength.Meanwhile, sodium tartrate can improve 20min fluidity and the presetting period this two of the present invention
Performance in index, and carboxy-propyl cellulose can improve the initial flow degree of the present invention, on this two indices of 20min fluidity
Performance.When sodium tartrate and carboxy-propyl cellulose are worked in coordination with when using, the enhancing effect for 20min fluidity is greater than winestone
Sour sodium and carboxy-propyl cellulose each enhancing effect sum to 20min fluidity.It can be seen that, in the present invention, sodium tartrate and
Can interact between carboxy-propyl cellulose, strengthen the performance in this index of 20min fluidity of the present invention.
Claims (10)
1. a kind of Self-leveling rapid hardening early-strength repairing mortar, is characterized in that: the component of the following parts by weight of inclusion:
Quartz sand 50-60 part
Sulphate aluminium cement 25-30 part
Gypsum 10-15 part
Lithium carbonate 0.2-1 part
Sodium tartrate 0.1-0.3 part
Poly carboxylic acid series water reducer dry powder 0.4-0.6 part.
2. Self-leveling rapid hardening early-strength repairing mortar according to claim 1, is characterized in that: according to weight portion, also include fat
Fat alcohol APEO 0.5-0.8 part.
3. Self-leveling rapid hardening early-strength repairing mortar according to claim 1, is characterized in that: according to weight portion, also includes protecting
Aqua 0.03-0.05 part.
4. Self-leveling rapid hardening early-strength repairing mortar according to claim 3, is characterized in that: described water-loss reducer is that carboxyalkyl is fine
Dimension element, described alkyl selects the saturated alkyl of c1-c4.
5. Self-leveling rapid hardening early-strength repairing mortar according to claim 1, is characterized in that: according to weight portion, also including can
Redisperse latex powder 4-6 part.
6. Self-leveling rapid hardening early-strength repairing mortar according to claim 5, is characterized in that: described redispersable latex powder choosing
With one of ethylene-vinyl acetate copolymer, acrylic acid-acrylic acid hydroxypropyl ester copolymer.
7. Self-leveling rapid hardening early-strength repairing mortar according to claim 1, is characterized in that: according to weight portion, also include disappearing
Infusion 0.6-1 part.
8. Self-leveling rapid hardening early-strength repairing mortar according to claim 7, is characterized in that: poly- diformazan selected by described defoamer
One of radical siloxane, fluorosilicone, ethylene glycol siloxanes.
9. a kind of preparation method of Self-leveling rapid hardening early-strength repairing mortar, is characterized in that: comprise the steps:
Step1: according to weight portion, weigh quartz sand 50-60 part, sulphate aluminium cement 25-30 part, gypsum 10-15 part, lithium carbonate
0.2-1 part, sodium tartrate 0.1-0.3 part, poly carboxylic acid series water reducer dry powder 0.4-0.6 part, AEO 0.5-0.8
Part, water-loss reducer 0.03-0.05 part, redispersable latex powder 4-6 part, defoamer 0.6-1 part；
Step2: be uniformly mixing to obtain product by weighing the component obtaining.
10. a kind of using method of Self-leveling rapid hardening early-strength repairing mortar, is characterized in that: comprise the steps:
Step 1: polishing ground, the place of local crowning is polished, after polishing, clears up ground；
Step 2: ethylene-vinyl acetate copolymer is equably applied on the ground；
Step 3: according to weight than Self-leveling rapid hardening early-strength repairing mortar: water=5:1 is by Self-leveling rapid hardening early-strength repairing mortar and water
Mixed, be uniformly mixing to obtain slurry；
Step 4: by slurry on the ground, shakeout, treat that it is certainly flat and parches.
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| CN109354471A (en) * | 2018-11-21 | 2019-02-19 | 君旺节能科技股份有限公司 | A kind of lower shrinkage self-compaction super hardening mending mortar and its construction technology |
| CN111848039A (en) * | 2020-07-23 | 2020-10-30 | 华江泗阳现代建筑发展有限公司 | Concrete mortar and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503316A (en) * | 2017-02-27 | 2018-09-07 | 北京高强亿圆混凝土有限责任公司 | Self-leveling concrete and preparation method thereof |
| CN109354471A (en) * | 2018-11-21 | 2019-02-19 | 君旺节能科技股份有限公司 | A kind of lower shrinkage self-compaction super hardening mending mortar and its construction technology |
| CN111848039A (en) * | 2020-07-23 | 2020-10-30 | 华江泗阳现代建筑发展有限公司 | Concrete mortar and preparation method thereof |
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