CN109231940A - A kind of cement-based self-leveling alignment material - Google Patents
A kind of cement-based self-leveling alignment material Download PDFInfo
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- CN109231940A CN109231940A CN201810879314.1A CN201810879314A CN109231940A CN 109231940 A CN109231940 A CN 109231940A CN 201810879314 A CN201810879314 A CN 201810879314A CN 109231940 A CN109231940 A CN 109231940A
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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
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—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
A kind of cement-based self-leveling alignment material of the present invention, is grouped as by the group of following parts by weight: 20-26 parts of ordinary portland cement, 6-12 parts of high alumina cement, 4-8 parts of anhydrite, 43-55 parts of quartz sand, 14-20 parts of dicalcium powder, 0.5-2.0 parts of redispersable latex powder, 0.05-0.10 parts of water-reducing agent, 0.08-0.11 parts of water-retaining agent, 0.08-0.12 parts of retarder, 0.03-0.10 parts of coagulant, 0.05-0.12 parts of defoaming agent, 0-5 parts of economization agent.The formula of the invention is reasonable, the good product mobility prepared using inventive formulation, and operable time is long；Mechanical strength is higher, and resistance to alternating temperature better performances, water resistance and heat-resisting quantity are preferable；Volume stability is high, and wearability is good, no isolation and excreting water phenomenon.
Description
Technical field
The invention belongs to building material technical fields, and in particular under a kind of hot conditions, under normal temperature condition and alternating temperature item
Part lower volume stability is high and the gravity flowing levelling mortar terrace material that can be applied to Hydronic radiant floor heating system of good mechanical properties
Material.
Background technique
In recent years, the advantages that Hydronic radiant floor heating system is due to its energy conservation, comfortable, health, without dust pollution, it has also become I
One of the energy-saving building technology that state's emphasis promotes and applies, is gradually applied, and good market prospect in construction projects.Although low
The problems such as Hydronic radiant floor heating system has been widely applied, but the Concrete Filled layer in the system generates shrinkage cracking influences
The use function of Hydronic radiant floor heating system, and cause maintenance cost higher.Replaced using cement-based self-leveling alignment material and is passed
Concrete unite as filled layer, this problem of ground shrinkage cracking can be well solved.Although patent CN106587871 A is
A kind of gravity flowing levelling mortar floor material for floor heating facility is mentioned, for the ternary of the general silicon-gypsum of high alumina-and rich high alumina
System, but volume stability of the material under temperature match curing conditions and hot conditions is not known in it, does not also point out body when used for a long time
The situation of change of product stability.It is known that terrestrial surface radiation heating system often in high temperature, relent under normal temperature environment, to matching
The volume stability for covering the screed-coat used is put forward higher requirements.
A kind of cement using ordinary portland cement and high alumina cement for major gelled material is invented in view of the foregoing
Based self-leveling alignment material, the material is with the levelling material of cement-based self-leveling of the ternary system of general silicon-high alumina-gypsum and rich general silicon
Material has volume stability good, and size distortion is small, and intensity is high, and wearability and the preferable characteristic of water resistance can well solve
The problems such as dusting of traditional floor heating material, cracking.
Summary of the invention
Aiming at the problems existing in the prior art, it is levelling that the present invention designed is designed to provide a kind of cement-based self-leveling
Material.
The present invention is realized by following rapidly scheme:
A kind of cement-based self-leveling alignment material, it is characterised in that be grouped as by the group of following parts by weight: 20-26 parts
Ordinary portland cement, 6-12 parts of high alumina cement, 4-8 parts of anhydrite, 43-55 parts of quartz sand, 14-20 parts of coarse whiting
Powder, 0.5-2.0 parts of redispersable latex powder, 0.05-0.10 parts of water-reducing agent, 0.08-0.11 parts of water-retaining agent, 0.08-
0.12 part of retarder, 0.03-0.10 parts of coagulant, 0.05-0.12 parts of defoaming agent, 0-5 parts of economization agent.
A kind of cement-based self-leveling alignment material, it is characterised in that the high alumina cement is Kai Nuosi TCC water
Mud, the ordinary portland cement are 42.5 ordinary portland cement of P.O.
A kind of cement-based self-leveling alignment material, it is characterised in that the gypsum is anhydrite.
A kind of cement-based self-leveling alignment material, it is characterised in that the quartz sand is linen, and grain
Diameter is less than 0.65mm.
A kind of cement-based self-leveling alignment material, it is characterised in that the filler is dicalcium powder, fineness 300
Mesh, wherein calcium carbonate mass content is greater than 85%, and whiteness is greater than 90.
A kind of cement-based self-leveling alignment material, it is characterised in that: described that latex powder can be divided to be watt gram again
One of 5010N vinyl acetate ethylene copolymer or watt gram 5044N vinyl acetate ethylene copolymer；Water-reducing agent is bar
The high effective and modified polycarboxylic acid powder water-reducing agent of this husband 2651F；Water-retaining agent is hydroxypropyl methyl cellulose HPMC, and range of viscosities is
400-500 mPa.s；Retarder is tartaric acid (L+) and sodium gluconate compound retarder；Coagulant is lithium carbonate or lithium sulfate
One of；Defoaming agent is P803 defoaming agent or DF05 defoaming agent；Economization agent is PSR100 economization agent.
The formula of the invention is reasonable, the good product mobility prepared using inventive formulation, and operable time is long；Mechanical strength
Higher, resistance to alternating temperature better performances, water resistance and heat-resisting quantity are preferable；Volume stability is high, and wearability is good, and no isolation and bleeding are existing
As.
Specific embodiment
The present invention is described in further details with reference to embodiments, and provides specific embodiment.
Cement-based self-leveling alignment material of the present invention, preparation process are, with ordinary portland cement, high alumina cement and gypsum
For cementitious material, filler, aggregate and chemical admixture are added, water is added in each raw material of inventive formulation amount after evenly mixing
In, control revolving speed is 500-600 revs/min, stir 2-3 minute, static 1 minute, continue stirring 1-2 minutes up to distributed slurry and
Without agglomeration.In 2 times interfacial agents of substrate surface brush, anti-leak-stopping brush before being laid with.The present invention suitably solves traditional ground radiation heating
Volume stability of concrete in system is poor, water resistance, resistance to alternating temperature performance are poor, heat-resisting quantity difference disadvantage, and will not be subsequent
Use process in shrinkage cracking.
Embodiment 1
By mass, component match ratio is as follows: 24 parts of P.O42.5 cement, 8 parts of high alumina cement, 4 parts of anhydrite, particle are less than
47 parts of the quartz sand of 0.65mm, 300 mesh 16 parts of dicalcium powder (calcium carbonate content is greater than 85%, whiteness > 90), a watt gram 5010N can
0.065 part of the high effective and modified polycarboxylic acids powder water-reducing agent of 0.625 part of redisperse latex powder, 2651F, hydroxypropyl methyl cellulose are (viscous
Degree is 400mPa.s) 0.08 part, tartaric acid (L+) and sodium gluconate retarder is 0.055 part each, 0.05 part of lithium carbonate, P803 disappear
0.08 part of infusion, water material mass ratio is 0.20.
Embodiment 2
By mass, component match ratio is as follows: 22 parts of P.O42.5 cement, 8 parts of high alumina cement, 4 parts of anhydrite, particle are less than
47 parts of the quartz sand of 0.65mm, 300 mesh 16 parts of dicalcium powder (calcium carbonate content is greater than 85%, whiteness > 90), a watt gram 5010N can
(viscosity is for 0.050 part of the high effective and modified polycarboxylic acids powder water-reducing agent of 1 part of redisperse latex powder, 2651F, hydroxypropyl methyl cellulose
400mPa.s) 0.08 part, tartaric acid (L+) and sodium gluconate retarder is 0.055 part each, 0.04 part of lithium carbonate, DF05 defoaming agent
0.08 part, 1.65 parts of PSR100 economization agent, water material mass ratio is 0.20.
Embodiment 3
By mass, component match ratio is as follows: 22 parts of P.O42.5 cement, 10 parts of high alumina cement, 5 parts of anhydrite, particle are less than
45 parts of the quartz sand of 0.65mm, 300 mesh 16 parts of dicalcium powder (calcium carbonate content is greater than 85%, whiteness > 90), a watt gram 5010N can
0.065 part of the high effective and modified polycarboxylic acids powder water-reducing agent of 1.595 parts of redisperse latex powder, 2651F, hydroxypropyl methyl cellulose are (viscous
Degree is 400mPa.s) 0.08 part, tartaric acid (L+) and sodium gluconate retarder is 0.055 part each, 0.08 part of lithium sulfate, P803 disappear
0.08 part of infusion, water material mass ratio is 0.21.
Embodiment 4
By mass, component match ratio is as follows: 24 parts of P.O42.5 cement, 6 parts of high alumina cement, 4 parts of anhydrite, particle are less than
47 parts of the quartz sand of 0.65mm, 300 mesh 16 parts of dicalcium powder (calcium carbonate content is greater than 85%, whiteness > 90), a watt gram 5010N can
0.055 part of the high effective and modified polycarboxylic acids powder water-reducing agent of 1.695 parts of redisperse latex powder, 2651F, hydroxypropyl methyl cellulose are (viscous
Degree is 400mPa.s) 0.10 part, tartaric acid (L+) and sodium gluconate retarder is 0.055 part each, 0.05 part of lithium carbonate, P803 disappear
0.10 part of infusion, water material mass ratio is 0.19.
Embodiment 5
By mass, component match ratio is as follows: 28 parts of P.O42.5 cement, 4 parts of high alumina cement, 4 parts of anhydrite, particle are less than
46 parts of the quartz sand of 0.65mm, 300 mesh 16 parts of dicalcium powder (calcium carbonate content is greater than 85%, whiteness > 90), a watt gram 5010N can
(viscosity is for 0.1 part of the high effective and modified polycarboxylic acids powder water-reducing agent of 1.42 parts of redisperse latex powder, 2651F, hydroxypropyl methyl cellulose
400mPa.s) 0.10 part, tartaric acid (L+) and sodium gluconate retarder is 0.055 part each, 0.05 part of lithium carbonate, P803 defoaming agent
0.05 part, water material mass ratio is 0.19.
Relevant parameter test result such as table 1
Table 1
60 DEG C of hot conditions, 65%RH
Temperature match curing conditions: being initially positioned at 20 DEG C of environment temperature, 65%RH, conserves 1d；It is then placed into 60 DEG C, the environment of 65%RH, after
Continuous maintenance 1d；It is placed in 20 DEG C of environment temperature, 65%RH again, conserves 1d；60 DEG C are then placed into, the environment of 65%RH continues to conserve
1d；So it is recycled to 90d.
The properties of the surveyed embodiment 1-4 of table 1 meet GB50037-2013 " Code of design for ground surface and floor of buildings " and JC/
The requirement of T985-2017 " ground cement-based self-leveling mortar " correlated performance, especially 60 DEG C, when 65%RH, temperature match curing conditions when system
Standby embodiment 1-4 size changing rate is small, it is seen that volume stability is good, has preparation method simple, low in cost, mechanical property
The features such as height, volume stability is good, and resistance to alternating temperature is functional.But embodiment 5, high alumina cement volume is less, normal silicate water
When mud volume is more, early strength is relatively low, and the size changing rate of 28d and 90d is larger.Also know from table 1, compared to high temperature
Under the conditions of, the size changing rate under temperature match curing conditions wants small.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art within the technical scope disclosed by the invention, can without the variation that creative work is expected or
Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Subject to fixed protection scope.
Claims (6)
1. a kind of cement-based self-leveling alignment material, it is characterised in that be grouped as by the group of following parts by weight: 20-26 parts common
Portland cement, 6-12 parts of high alumina cement, 4-8 parts of anhydrite, 43-55 parts of quartz sand, 14-20 parts of dicalcium powder,
0.5-2.0 parts of redispersable latex powder, 0.05-0.10 parts of water-reducing agent, 0.08-0.11 parts of water-retaining agent, 0.08-0.12 parts
Retarder, 0.03-0.10 parts of coagulant, 0.05-0.12 parts of defoaming agent, 0-5 parts of economization agent.
2. a kind of cement-based self-leveling alignment material as described in claim 1, it is characterised in that the high alumina cement is triumphant
Northey TCC cement, the ordinary portland cement are 42.5 ordinary portland cement of P.O.
3. a kind of cement-based self-leveling alignment material as described in claim 1, it is characterised in that the gypsum is anhydrite.
4. a kind of cement-based self-leveling alignment material as described in claim 1, it is characterised in that the quartz sand is greyish white
Color, and partial size is less than 0.65mm.
5. a kind of cement-based self-leveling alignment material as described in claim 1, it is characterised in that the filler is dicalcium powder,
Fineness is 300 mesh, and wherein calcium carbonate mass content is greater than 85%, and whiteness is greater than 90.
6. a kind of cement-based self-leveling alignment material as described in claim 1, it is characterised in that: described can divide latex again
Powder is one of watt gram 5010N vinyl acetate ethylene copolymer or watt gram 5044N vinyl acetate ethylene copolymer；Subtract
Aqua is the high effective and modified polycarboxylic acid powder water-reducing agent of BASF 2651F；Water-retaining agent is hydroxypropyl methyl cellulose HPMC, viscosity
Range is 400-500 mPa.s；Retarder is tartaric acid (L+) and sodium gluconate compound retarder；Coagulant be lithium carbonate or
One of lithium sulfate；Defoaming agent is P803 defoaming agent or DF05 defoaming agent；Economization agent is PSR100 economization agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879314.1A CN109231940A (en) | 2018-08-03 | 2018-08-03 | A kind of cement-based self-leveling alignment material |
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| CN201810879314.1A CN109231940A (en) | 2018-08-03 | 2018-08-03 | A kind of cement-based self-leveling alignment material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845206A (en) * | 2019-12-09 | 2020-02-28 | 成都宏基建材股份有限公司 | Cement millstone terrace material and production method thereof |
| CN111606676A (en) * | 2019-06-21 | 2020-09-01 | 中建材创新科技研究院有限公司 | High-water-retention gypsum self-leveling material and preparation method thereof |
| CN112240085A (en) * | 2020-10-21 | 2021-01-19 | 广东博智林机器人有限公司 | Method for paving ceramic tiles |
| CN113387670A (en) * | 2021-05-24 | 2021-09-14 | 苏州金世晟建筑装饰工程有限公司 | Novel gypsum-based leveling material |
| EP4119522A1 (en) * | 2021-07-16 | 2023-01-18 | Sika Technology AG | Fast drying inclined floor screed |
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| CN101941824A (en) * | 2010-08-10 | 2011-01-12 | 上海宝元化学建材有限公司 | Self-leveling mortar of composite cement |
| CN102140026A (en) * | 2010-10-22 | 2011-08-03 | 中国建筑科学研究院 | Self-levelling material and preparation method thereof |
| CN105777034A (en) * | 2016-02-25 | 2016-07-20 | 张学健 | Abrasion-resistant cement-based self-leveling mortar |
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2018
- 2018-08-03 CN CN201810879314.1A patent/CN109231940A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941824A (en) * | 2010-08-10 | 2011-01-12 | 上海宝元化学建材有限公司 | Self-leveling mortar of composite cement |
| CN102140026A (en) * | 2010-10-22 | 2011-08-03 | 中国建筑科学研究院 | Self-levelling material and preparation method thereof |
| CN105777034A (en) * | 2016-02-25 | 2016-07-20 | 张学健 | Abrasion-resistant cement-based self-leveling mortar |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111606676A (en) * | 2019-06-21 | 2020-09-01 | 中建材创新科技研究院有限公司 | High-water-retention gypsum self-leveling material and preparation method thereof |
| CN111606676B (en) * | 2019-06-21 | 2022-05-17 | 中建材创新科技研究院有限公司 | High-water-retention gypsum self-leveling material and preparation method thereof |
| CN110845206A (en) * | 2019-12-09 | 2020-02-28 | 成都宏基建材股份有限公司 | Cement millstone terrace material and production method thereof |
| CN112240085A (en) * | 2020-10-21 | 2021-01-19 | 广东博智林机器人有限公司 | Method for paving ceramic tiles |
| CN112240085B (en) * | 2020-10-21 | 2022-03-11 | 广东博智林机器人有限公司 | Method for paving ceramic tiles |
| CN113387670A (en) * | 2021-05-24 | 2021-09-14 | 苏州金世晟建筑装饰工程有限公司 | Novel gypsum-based leveling material |
| EP4119522A1 (en) * | 2021-07-16 | 2023-01-18 | Sika Technology AG | Fast drying inclined floor screed |
| WO2023285424A1 (en) * | 2021-07-16 | 2023-01-19 | Sika Technology Ag | Quick-drying slope screed |
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Application publication date: 20190118 |