CN110156372A - A kind of auto-flowing floor mortar additive and preparation method thereof - Google Patents
A kind of auto-flowing floor mortar additive and preparation method thereof Download PDFInfo
- Publication number
- CN110156372A CN110156372A CN201910389095.3A CN201910389095A CN110156372A CN 110156372 A CN110156372 A CN 110156372A CN 201910389095 A CN201910389095 A CN 201910389095A CN 110156372 A CN110156372 A CN 110156372A
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- Prior art keywords
- auto
- water
- floor mortar
- flowing floor
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Classifications
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
The invention discloses a kind of auto-flowing floor mortar additives and preparation method thereof, are related to technical field of concrete.It is characterized in that: a kind of auto-flowing floor mortar additive, the component including following parts by weight: polyacrylate dispersion: 50~80 parts；Water-reducing agent: 5~10 parts；Defoaming agent: 0.1~1 part；Anti-settling agent: 0.1~1 part；Filler: 5~10 parts；Water: 10~15 parts, by the way that the fiber of polyacrylate dispersion and different draw ratios is added in additive, so that the auto-flowing floor mortar mobility using additive of the present invention is preferable, and early strength with higher and later strength.
Description
Technical field
The present invention relates to technical field of concrete, more specifically, it relates to a kind of auto-flowing floor mortar additive
And preparation method thereof.
Background technique
Self-leveling is that a kind of levelling technique is spread out, free flow using the flowability of gravity flowing levelling mortar on ground in fact
It is dynamic to form a smooth face.The surface layer of formation can be used as the bed course of timber floor, solve flooring board to flatness requirement height
The problem of.In addition, cement self-leveling is used in addition to the bed course as floor, it can also be directly as the substitute on floor.
Gravity flowing levelling mortar system is technical requirements highest and most complicated mortar, the bedding mortar of Self-leveling in mortar
It is the important guarantee of surfacing self-leveling floor effect quality, thereby, it is ensured that the Self-leveling of mortar and properties stability are that core is asked
Topic, otherwise surface layer is be easy to appear shrinkage cracking, infiltration, low strength grade the problems such as in the later period.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of auto-flowing floor mortar addition
Agent, it is preferable using the auto-flowing floor mortar mobility of additive of the present invention, and early strength with higher and later strength.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of auto-flowing floor mortar additive, the component including following parts by weight:
Polyacrylate dispersion: 50~80 parts；
Water-reducing agent: 5~10 parts；
Defoaming agent: 0.1~1 part；
Anti-settling agent: 0.1~1 part；
Filler: 5~10 parts；
Water: 10~15 parts.
By using above-mentioned technical proposal, the additive of inventive formulation preparation is added in gravity flowing levelling mortar, so that sand
Slurry has good mobility, and can be makes the moisture content in cement be in good state, so that the morning after mortar condensation
Phase intensity and later strength are higher, and the polyacrylate dispersion in additive is mixed with mortar, can be improved the caking property of mortar,
Assign mortar toughness and tensile strength, anti-shrinkage and cracking.
Further preferably, the filler includes one of glass fibre, carbon fiber and polypropylene fibre or a variety of.
By using above-mentioned technical proposal, at the load-bearing initial stage of auto-flowing floor, base material of mortar bears outer jointly with fiber
Power, and the former is the person of being primarily subjected to of external force, after base-material cracks, the fiber across crack becomes being primarily subjected to for external force
Person, fiber have high intensity after there is high strength reinforcement effect, mortar to form ground auto-flowing floor mortar, so that gravity flow
Plane earth has the characteristics that anti-shrink cracking.
Further preferably, the fiber in the filler is the mixture of different draw ratios composition, by weight percentage
Meter:
Draw ratio 20~25 10%~20%；
Draw ratio 25~30 10%~30%；
Draw ratio 30~35 50%~80%.
By using above-mentioned technical proposal, the present invention uses the fiber of different draw ratios, between the fiber of different draw ratios
Mutually winding, so that auto-flowing floor mortar has good rheological property, it will not there is a phenomenon where coagulations and choked flow.
Further preferably, the water-reducing agent uses sulfamate water reducer, aliphatic water reducing agent, polycarboxylate water-reducer
One of with naphthalene water reducer.
By using above-mentioned technical proposal, water-reducing agent, which is added in mortar, has peptizaiton to cement granules, can improve it
Workability reduces unit consumption of water, improves the mobility of mortar, and water-reducing agent can greatly reduce the shrinking percentage of mortar.
Further preferably, the defoaming agent is using one of DF-179, DF-176 and DF-8868 or a variety of.
By using above-mentioned technical proposal, defoaming agent can be used to adjust in mortar the increased air content because of water-reducing agent, this
Outer defoaming agent may make that mortar is more closely knit, effectively increase the impermeability of mortar.
Further preferably, the anti-settling agent uses hydroxyethylmethylcellulose or fumed silica.
By using above-mentioned technical proposal, anti-settling agent can significantly improve mortar performance, it can improve the consistency of mortar, work
Performance, adhesive property and water retention property.
The purpose of the present invention two is to provide a kind of preparation method of auto-flowing floor mortar additive, using the present invention
The auto-flowing floor mortar mobility of additive is preferable, and early strength with higher and later strength.
To achieve the above object two, the present invention provides the following technical scheme that
A kind of preparation method of auto-flowing floor mortar additive, comprising the following steps:
Polyacrylate dispersion, water-reducing agent, defoaming agent, anti-settling agent are stirred 0.5~1h by step 1, and revolving speed 800~
1000r/min；
Step 2 filler is added in the mixed liquor of step 1, and 0.25~0.5h is mixed, and obtains auto-flowing floor mortar use
Additive.
In conclusion compared with prior art, the invention has the following advantages:
(1) additive of inventive formulation preparation is added in gravity flowing levelling mortar, so that mortar has good mobility, and can
It is that the moisture content in cement is made to be in good state, so that the early strength and later strength after mortar condensation are higher, adds
Add the polyacrylate dispersion in agent mixed with mortar, can be improved the caking property of mortar, assigns mortar toughness and tensile strength,
Anti-shrinkage and cracking；
(2) present invention uses the fiber of different draw ratios, mutually winds between the fiber of different draw ratios, so that auto-flowing floor
Mortar has good rheological property, will not be there is a phenomenon where coagulation and choked flow, and fiber is to auto-flowing floor mortar with high-strength
Reinforcing effect is spent, mortar has high intensity after forming ground, so that auto-flowing floor has the characteristics that anti-shrink cracking.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.Anti-settling agent DF- in the embodiment of the present invention
179, DF-176 and DF-8868 is taken from Dongguan City De Feng defoaming agent Co., Ltd.
Embodiment 1: a kind of auto-flowing floor mortar additive, each component and its corresponding parts by weight are as shown in table 1,
And acquisition is made by the steps:
Step 1 stirs polyacrylate dispersion, sulfamate water reducer, DF-179, hydroxyethylmethylcellulose, water mixed
Close 0.5~1h, 800~1000r/min of revolving speed；
Step 2 filler is added in the mixed liquor of step 1, and 0.25~0.5h is mixed, and obtains auto-flowing floor mortar use
Additive；
Wherein filler uses glass fibre, and glass fibre is by weight percentage are as follows: draw ratio 2010%；Draw ratio 2510%；
Draw ratio 3080%.
Embodiment 2-6: a kind of auto-flowing floor mortar additive, difference from example 1 is that, each component and
Its corresponding parts by weight is as shown in table 1.
Each component and its parts by weight in 1 embodiment 1-6 of table
Embodiment 7: a kind of auto-flowing floor mortar additive, difference from example 1 is that:
Wherein filler uses glass fibre and carbon fiber and ratio between the two is 1:1, and glass fibre is by weight percentage
Are as follows: draw ratio 20 10%；Draw ratio 25 10%；Draw ratio 30 80%；Carbon fiber is by weight percentage are as follows: draw ratio 20
10%；Draw ratio 25 10%；Draw ratio 30 80%.
Remaining is same as Example 1.
Embodiment 8: a kind of auto-flowing floor mortar additive, difference from example 1 is that:
Wherein filler uses glass fibre and carbon fiber and ratio between the two is 1:1, and glass fibre is by weight percentage
Are as follows: draw ratio 20 10%；Draw ratio 25 10%；Draw ratio 30 80%；Carbon fiber is by weight percentage are as follows: draw ratio 25
10%；Draw ratio 30 10%；Draw ratio 35 80%.
Remaining is same as Example 1.
Embodiment 9: a kind of auto-flowing floor mortar additive, difference from example 1 is that:
Wherein filler uses the ratio between glass fibre, carbon fiber and polypropylene fibre and three for 1:1:1, and glass fibre
By weight percentage are as follows: draw ratio 20 10%；Draw ratio 25 10%；Draw ratio 30 80%；Carbon fiber is by weight percentage
Are as follows: draw ratio 20 10%；Draw ratio 25 10%；Draw ratio 30 80%；Polypropylene fibre weight percent are as follows: draw ratio 20
10%；Draw ratio 25 10%；Draw ratio 30 80%.
Remaining is same as Example 1.
Embodiment 10: a kind of auto-flowing floor mortar additive, difference from example 1 is that:
Wherein filler uses the ratio between glass fibre, carbon fiber and polypropylene fibre and three for 1:2:1, and glass fibre
By weight percentage are as follows: draw ratio 20 10%；Draw ratio 25 10%；Draw ratio 30 80%；Carbon fiber is by weight percentage
Are as follows: draw ratio 25 20%；Draw ratio 30 30%；Draw ratio 35 50%；Polypropylene fibre weight percent are as follows: draw ratio 20
10%；Draw ratio 25 20%；Draw ratio 30 70%.
Remaining is same as Example 1.
Comparative example 1: a kind of additive, difference from example 1 is that:
Step 1, by 5 parts of sulfamate water reducers, 0.1 part of DF-179,0.1 part of hydroxyethylmethylcellulose, 10 parts of water stirrings
Mix 0.5~1h, 800~1000r/min of revolving speed；
Step 25 parts of fillers is added in the mixed liquor of step 1, and 0.25~0.5h is mixed, obtains additive；
Wherein filler uses glass fibre, and glass fibre is by weight percentage are as follows: draw ratio 20 10%；Draw ratio 25
10%；Draw ratio 30 80%.
Comparative example 2: a kind of additive, difference from example 1 is that:
By 50 parts of polypropylene ester lotions, 5 parts of sulfamate water reducers, 0.1 part of DF-179,0.1 part of hydroxyethylmethylcellulose,
10 parts of water are stirred 0.5~1h, and 800~1000r/min of revolving speed obtains additive.
Performance test
Respectively to additive progressive made from auto-flowing floor mortar additive made from embodiment 1-10 and comparative example 1-2
It can test；
Test method
Using additive obtained in auto-flowing floor mortar additive made from embodiment 1-10 and comparative example 1-2, according to
JC/T 985-2005 " ground cement-based self-leveling mortar " system prepares 12 parts of mortars respectively；
Compression strength and flexural strength: GB/T 50081-2002YES-B pressure testing machine；
Test result is included in following table 2, as shown in Table 2, fluidity, compression strength and the anti-folding of 1 and the comparative example 2 of comparative example
Intensity is respectively less than embodiment 1-10, is flowed using auto-flowing floor mortar made from inventive formulation and preparation method with additive
Property is preferable, and early strength with higher and later strength.
2 the performance test results of table
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of auto-flowing floor mortar additive, which is characterized in that the component including following parts by weight:
Polyacrylate dispersion: 50~80 parts；
Water-reducing agent: 5~10 parts；
Defoaming agent: 0.1~1 part；
Anti-settling agent: 0.1~1 part；
Filler: 5~10 parts；
Water: 10~15 parts.
2. auto-flowing floor mortar additive according to claim 1, which is characterized in that the filler includes glass fibers
One of dimension, carbon fiber and polypropylene fibre are a variety of.
3. auto-flowing floor mortar additive according to claim 2, which is characterized in that the fiber in the filler is
The mixture of different draw ratio compositions, by weight percentage:
Draw ratio 20~25 10%~20%；
Draw ratio 25~30 10%~30%；
Draw ratio 30~35 50%~80%.
4. auto-flowing floor mortar additive according to claim 1, which is characterized in that the water-reducing agent uses amino
One of sulfonate water reducer, aliphatic water reducing agent, polycarboxylate water-reducer and naphthalene water reducer.
5. auto-flowing floor mortar additive according to claim 1, which is characterized in that the defoaming agent uses DF-
179, one of DF-176 and DF-8868 or a variety of.
6. auto-flowing floor mortar additive according to claim 1, which is characterized in that the anti-settling agent uses hydroxyl second
Ylmethyl cellulose or fumed silica.
7. a kind of preparation method of auto-flowing floor mortar additive, which comprises the following steps:
Polyacrylate dispersion, water-reducing agent, defoaming agent, anti-settling agent are stirred 0.5~1h by step 1, and revolving speed 800~
1000r/min；
Step 2 filler is added in the mixed liquor of step 1, and 0.25~0.5h is mixed, and obtains auto-flowing floor mortar use
Additive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910389095.3A CN110156372A (en) | 2019-05-10 | 2019-05-10 | A kind of auto-flowing floor mortar additive and preparation method thereof |
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| CN201910389095.3A CN110156372A (en) | 2019-05-10 | 2019-05-10 | A kind of auto-flowing floor mortar additive and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143322A (en) * | 2020-09-04 | 2020-12-29 | 浙江玖龙新材料有限公司 | Formula and preparation method of high-self-leveling acrylic emulsion |
| CN114105565A (en) * | 2021-12-09 | 2022-03-01 | 科之杰新材料集团(广东)有限公司 | Ground mortar and preparation method thereof |
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| CN103466994A (en) * | 2013-09-22 | 2013-12-25 | 常州工程职业技术学院 | Additive for self-leveling bedding mortar and wear-resistant floor mortar and preparation method thereof |
| CN108585672A (en) * | 2018-04-14 | 2018-09-28 | 湖北启利新材料股份有限公司 | A kind of water-base epoxy composite cement mortar gravity flow self-leveling floor and preparation method |
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| WO2009008260A1 (en) * | 2007-07-10 | 2009-01-15 | Nichigo-Mowinyl Co., Ltd. | Aqueous synthetic-resin emulsion for cement mortar admixture, re-emulsifiable powder for cement mortar admixture from aqueous synthetic-resin emulsion, and cement mortar admixture comprising the same |
| CN103466994A (en) * | 2013-09-22 | 2013-12-25 | 常州工程职业技术学院 | Additive for self-leveling bedding mortar and wear-resistant floor mortar and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143322A (en) * | 2020-09-04 | 2020-12-29 | 浙江玖龙新材料有限公司 | Formula and preparation method of high-self-leveling acrylic emulsion |
| CN114105565A (en) * | 2021-12-09 | 2022-03-01 | 科之杰新材料集团(广东)有限公司 | Ground mortar and preparation method thereof |
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Application publication date: 20190823 |
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