CN101817654B - Self-leveling mortar anti-shrinking agent and preparation method and application thereof - Google Patents
Self-leveling mortar anti-shrinking agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN101817654B CN101817654B CN2010101372107A CN201010137210A CN101817654B CN 101817654 B CN101817654 B CN 101817654B CN 2010101372107 A CN2010101372107 A CN 2010101372107A CN 201010137210 A CN201010137210 A CN 201010137210A CN 101817654 B CN101817654 B CN 101817654B
- Authority
- CN
- China
- Prior art keywords
- parts
- self
- powder
- mortar
- leveling mortar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a self-leveling mortar anti-shrinking agent and a preparation method and application thereof. The self-leveling mortar anti-shrinking agent comprises the following components in part by weight: 80 to 100 parts of bauxite, 6 to 12 parts of sodium carbonate, 0.5 to 1.5 parts of cerous chloride, 100 parts of zeolite, 10 to 15 parts of natural alunite, 40 to 50 parts of dihydrate gypsum and 1.5 to 3 parts of silane coupling agent. The self-leveling mortar anti-shrinking agent of the invention produces ettringite during the hydration and hardening of the self-leveling cement to be filled in micropores of the mortar to produce slight expansion, so that the shrinkage stress produced during the hydration of the mortar is buffered to have a remarkable anti-shrinkage effect.
Description
Technical field
The present invention relates to a kind of self-leveling mortar anti-shrinking agent.
Background technology
China's economy gets into the high-speed developing period, and construction work is also flourish, and the construction of each particularly serious engineering is at the forefront in the world at present.In particularly serious engineering construction, gravity flow level ground mortar is more and more paid attention to as the world novel technology and material at home, has been widely used in the particularly serious engineering construction, as novel technology and material extraordinary prospect is arranged.But gravity flow level ground mortar is the highest and the most complicated mortar of technical requirements in the mortar, and the level ground mortar each item stable performance of guaranteeing to flow automatically is a key problem, and like the later stage shrinkage cracking, problems such as sand fallout need novel additive to solve.A hundred flowers blossom for concrete various additive, but because gravity flowing levelling mortar is a special system of concrete field, many concrete additives can not be applicable to the gravity flowing levelling mortar system fully.Many problems of gravity flow level ground mortar are to need more additives that are suitable for the gravity flowing levelling mortar system more.
Summary of the invention
The object of the present invention is to provide a kind of self-leveling mortar anti-shrinking agent, overcoming the above-mentioned defective that prior art exists.
Described self-leveling mortar anti-shrinking agent comprises the component of following weight part:
80～100 parts of bauxitic clays
6～12 parts in yellow soda ash
0.5～1.5 part of cerous compounds
100 parts in zeolite
10～15 parts of natural alumstones
40～50 parts of dihydrate gypsums
1.5～3 parts of silane coupling agents
The antishrinking agent preparation method of said gravity flowing levelling mortar comprises the steps:
(1) A component preparation, with bauxitic clay and yellow soda ash in 350～400 ℃ of following calcination 3～4 hours, after the cooling; Be ground to 400～600 orders, powder be heated to about 75～85 ℃ again, the ethanolic soln with cerous compounds is sprayed on the powder then; Stirred 1～2 hour, and flung to ethanol;
In the ethanolic soln of cerous compounds, the weight concentration of cerous compounds is 3～8%;
(2) B component preparation is ground to 400～600 orders with zeolite, natural alumstone and dihydrate gypsum, powder is heated to about 75～90 ℃ again, and the ethanolic soln of silane coupling agent is sprayed on the powder, stirs 1～2 hour, flings to ethanol;
At last A component and B component are mixed, obtain finished product.
The molecular formula of described silane coupling agent is Y (CH
2)
nSiX
3, n=0～3;
Y is vinyl, amino, epoxy group(ing), methacryloxy, sulfydryl or urea groups;
X is chloro, methoxyl group, oxyethyl group, methoxy ethoxy or acetoxyl group etc.;
Silane coupling agent is preferably N-2-(aminoethyl)-3-aminopropyl trimethoxysilane, and Nanjing joins the silication chemical product.
Bauxitic clay has another name called aluminite, molecular formula is Al
3O
3.2H
2The O crystalline mineral adopts Yangquan, Shanxi bauxitic clay.
The chemical constitution of natural alumstone is KAl
3[SO4]
2(OH)
6., Lujiang alum mineral products.
The zeolite main chemical compositions is silicon-dioxide and aluminium sesquioxide, the prosperous insulation far away of Xinyang level bridge factory product.
Dihydrate gypsum, cerous compounds all adopt the commercially available prod.
Self-leveling mortar anti-shrinking agent of the present invention can be used as antishrinking agent, is used for cement-based self-leveling mortar.
The antishrinking agent of gravity flowing levelling mortar of the present invention generates ettringite and is filled in the micropore of mortar in self-leveling cement aquation and process of setting, produce slight expansion; Cushioned the string stress that mortar produces in hydration process, simultaneously through silane coupler modified natural zeolite, under the katalysis of cerous compounds; The reactive group of coupling agent and the polymer active group generation crosslinking reaction in the mortar; Make the silicate after zeolite and polymkeric substance and the aquation form a reticulated structure, increased the snappiness of mortar, improved ability of anti-deformation; Especially in the gravity flowing levelling mortar large-area construction; From the levelling shrinkage cracking is a common problem, adds antishrinking agent of the present invention, can play significant anti-contractive effect.
Embodiment
Embodiment 1
1.5 parts of 80 parts of bauxitic clays, 6 parts in yellow soda ash, 0.5 part of cerous compounds, 100 parts in zeolite, 10 parts of natural alumstones, 40 parts of dihydrate gypsums, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
(1) A component preparation; Bauxitic clay and yellow soda ash mixing are placed on 350 ℃ of following calcination 3 hours; It is 500 orders that cooling back uses shredder that mixture is milled to median size, again powder is placed on about mixing kettle internal heating to 80 ℃, and be that 3.5% cerous compounds ethanolic soln is sprayed on the powder with weight concentration; Stirred 1 hour, ethanol is flung to;
(2) B component preparation; Zeolite powder, natural alumstone, dihydrate gypsum being put into shredder be milled to 400 order fineness, powder is placed on about mixing kettle internal heating to 90 ℃ again, is that N-2-(aminoethyl)-3-aminopropyl trimethoxysilane ethanolic soln of 10% is sprayed on the powder with weight concentration; Stirred 1 hour; Fling to ethanol, at last A and B are mixed, obtain finished product.
Embodiment 2
2 parts of 90 parts of bauxitic clays, 7 parts in yellow soda ash, 1 part of cerous compounds, 100 parts in zeolite, 12 parts of natural alumstones, 45 parts of dihydrate gypsums, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
(1) A component preparation; Bauxitic clay and yellow soda ash mixing are placed on 380 ℃ of following calcination 3 hours; Cooling back is milled to median size 600 orders with shredder with mixture, again powder is placed on about mixing kettle internal heating to 80 ℃, and be that 5% cerous compounds ethanolic soln is sprayed on the powder with weight concentration; Stirred 1 hour, and flung to ethanol;
(2) B component preparation; Zeolite powder, natural alumstone, dihydrate gypsum are put into shredder be milled to median size 400 purpose fineness; Again powder is placed on about mixing kettle internal heating to 90 ℃; With weight concentration is N-2-(aminoethyl)-3-aminopropyl trimethoxysilane ethanolic soln of 12%, is sprayed on the powder, stirs 1 hour.Fling to ethanol, with A and B uniform mixing, obtain finished product at last.
Embodiment 3
3 parts of 100 parts of bauxitic clays, 8 parts in yellow soda ash, 1.5 parts of cerous compoundss, 100 parts in zeolite, 15 parts of natural alumstones, 50 parts of dihydrate gypsums, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
(1) A component preparation; Bauxitic clay and yellow soda ash mixing are placed on 400 ℃ of following calcination 3 hours; Cooling back is milled to 400 order fineness with shredder with mixture, powder is placed on about mixing kettle internal heating to 80 ℃ again, is that 8% cerous compounds is sprayed on the powder with ethanolic soln with weight concentration; Stirred 1 hour, and flung to ethanol;
(2) B component preparation; Zeolite, natural alumstone, dihydrate gypsum are put into shredder be milled to 600 order fineness; Again powder is placed on about mixing kettle internal heating to 90 ℃; With weight concentration is that N-2-(aminoethyl)-3-aminopropyl trimethoxysilane ethanolic soln of 8% is sprayed on the powder, stirs 1 hour, flings to ethanol.With A and B uniform mixing, obtain finished product at last.
Embodiment 4
1.5 parts of 95 parts of bauxitic clays, 9 parts in yellow soda ash, 0.75 part of cerous compounds, 100 parts in zeolite, 10 parts of natural alumstones, 40 parts of dihydrate gypsums, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
(1) A component preparation; Bauxitic clay and yellow soda ash mixing are placed on 370 ℃ of following calcination 3 hours; Cooling back is milled to 400 order fineness with shredder with mixture, again powder is placed on about mixing kettle internal heating to 80 ℃, and be that 5% cerous compounds ethanolic soln is sprayed on the powder with weight concentration; Stirred 1 hour, and flung to ethanol;
(2) B component preparation; Zeolite, natural alumstone, dihydrate gypsum are put into shredder be milled to 600 order fineness; Powder being placed on about mixing kettle internal heating to 90 ℃, is that 5% silane coupling agent dilutes with alcohol with weight concentration again, is sprayed at silane coupling agent on the powder equably with atomizer; Stirred 1 hour, and flung to ethanol.With A and B uniform mixing, obtain finished product at last.
Embodiment 5
A component: 85 parts of bauxitic clays, 10 parts in yellow soda ash, 1.25 parts of cerous compoundss, B component: 1.5 parts of 100 parts of natural zeolite powders, 10 parts of natural alumstones, 40 parts of dihydrate gypsums, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
(1) A component preparation; Bauxitic clay and yellow soda ash mixing are placed on 390 ℃ of following calcination 3 hours; Cooling back is milled to 400～600 order fineness with shredder with mixture, powder is placed on about mixing kettle internal heating to 80 ℃ again, with atomizer equably is sprayed at powder on after with dissolve with ethanol cerous compounds; Stirred 1 hour, and flung to ethanol; (2) B component preparation; Zeolite powder, natural alumstone, dihydrate gypsum are put into shredder be milled to 400～600 order fineness; Again powder is placed on about mixing kettle internal heating to 90 ℃; The ethanolic soln that with weight concentration is N-2-(aminoethyl)-3-aminopropyl trimethoxysilane of 10% is sprayed on the powder, stirs 1 hour, flings to ethanol.With A and B uniform mixing, obtain finished product at last.
Embodiment 6
1.5 parts of 100 parts of bauxitic clays, 12 parts in yellow soda ash, 1 part of cerous compounds, 100 parts in zeolite, 10 parts of natural alumstones, 40 parts of dihydrate gypsums, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane
(1) A component preparation; Bauxitic clay and yellow soda ash mixing are placed on 360 ℃ of following calcination 3 hours; Cooling back is milled to 600 order fineness with shredder with mixture, again powder is placed on about mixing kettle internal heating to 80 ℃, and be that 5% cerous compounds ethanolic soln is sprayed on the powder with weight concentration; Stirred 1 hour, and flung to ethanol;
(2) B component preparation; Zeolite, natural alumstone, dihydrate gypsum are put into shredder be milled to 600 order fineness; Again powder is placed on about mixing kettle internal heating to 90 ℃; The ethanolic soln that with weight concentration is N-2-(aminoethyl)-3-aminopropyl trimethoxysilane of 10% is sprayed on the powder, stirs 1 hour, flings to ethanol.With A and B uniform mixing, obtain finished product at last.
Embodiment 7
Adopt Shanghai anti-neat new building material ltd self-leveling terrace powder mortar product to carry out application test; At the antishrinking agent of the present invention that in the levelling dry-mix, adds gross weight 5%.
Add the antishrinking agent of the foregoing description preparation to self-leveling terrace powder mortar, add to stir behind the water and process cement composition:
One, processes 36 of 7.07cm * 7.07cm * 7.07cm die trial,, carry out cubic compressive strength and measure in standard conditions (22 ℃, relative humidity 50 ± 10%) maintenance 28 days down.
Two, process 18 of 7.07cm * 7.07cm * 7.07cm die trial, natural curing is carried out later strength and is measured.
Three, process 18 of 4cm * 4cm * 16cm die trial, in standard conditions (22 ℃, relative humidity 50 ± 10%) maintenance 28 days down, shrinkability is measured, folding strength is measured;
Four, process 18 of 4cm * 4cm * 16cm die trial, natural curing is carried out the later stage folding strength and is measured;
Five, process four on 200cm * 200cm * 0.5cm (cement based) gravity flow level ground, process four on 200cm * 200cm * 1cm (cement based) gravity flow level ground, process four on 200cm * 200 * 1.5cm (cement based) gravity flow level ground. natural curing 12 months;
Six, process 36 on 5cm * 5cm * 0.5cm (cement based) gravity flow level ground; Process 12 on 5cm * 5cm * 1cm (cement based) gravity flow level ground; Process 12 on 5cm * 5cm * 1.5cm (cement based) gravity flow level ground. maintenance is 28 days under standard conditions (22 ℃, relative humidity 50 ± 10%), determining bonding strength;
Seven, testing method: according to the People's Republic of China building material industry standard JC/T985-2005 ground with cement based gravity flow level ground mortar, GB/T 1768 Determination of Abrasion Resistance for Coating Film, JC/T547-2005 ceramic wall and floor bricks tackiness agent, GB/T 17671 Test method for strength of hydraulic cement mortar.
Detected result sees the following form.Wherein, comparison sample is in mortar, to add the PSR100 antishrinking agent of the German goldschmidt chemical corporation production of same consumption.
Can think from determination data, self-leveling mortar anti-shrinking agent of the present invention, stable long-term strength, after the long-term natural curing of gravity flow of the present invention level ground mortar, do not whiten in the surface, not sand fallout, shrinkability is little, no cracking phenomena.And comparative sample just has slight whiting, sand fallout, fine fisssure shadow after natural curing in 6 months, and cracking phenomena was just arranged in 12 months.
Claims (6)
1. self-leveling mortar anti-shrinking agent is characterized in that, comprises the component of following weight part:
2. the preparation method of self-leveling mortar anti-shrinking agent according to claim 1 is characterized in that, comprises the steps:
(1) A component preparation in 350～400 ℃ of following calcination, after the cooling, is ground bauxitic clay and yellow soda ash, again powder is heated to 75～85 ℃, and the ethanolic soln with cerous compounds is sprayed on the powder then, and ethanol is flung in stirring;
(2) zeolite, natural alumstone and dihydrate gypsum are ground in B component preparation, again powder are heated to 75～90 ℃, and the ethanolic soln of silane coupling agent is sprayed on the powder, stir and fling to ethanol;
At last A component and B component are mixed, obtain finished product.
3. method according to claim 2 is characterized in that, described silane coupling agent is N-2-(aminoethyl)-3-aminopropyl trimethoxysilane.
4. method according to claim 2 is characterized in that, with bauxitic clay and yellow soda ash in 350～400 ℃ of following calcination 3～4 hours.
5. method according to claim 2 is characterized in that, in the ethanolic soln of cerous compounds, the weight concentration of cerous compounds is 3～8%.
6. the purposes of self-leveling mortar anti-shrinking agent according to claim 1 is characterized in that, as antishrinking agent, is used for cement-based self-leveling mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101372107A CN101817654B (en) | 2010-03-31 | 2010-03-31 | Self-leveling mortar anti-shrinking agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101372107A CN101817654B (en) | 2010-03-31 | 2010-03-31 | Self-leveling mortar anti-shrinking agent and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101817654A CN101817654A (en) | 2010-09-01 |
| CN101817654B true CN101817654B (en) | 2012-04-11 |
Family
ID=42652956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101372107A Active CN101817654B (en) | 2010-03-31 | 2010-03-31 | Self-leveling mortar anti-shrinking agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101817654B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674735B (en) * | 2012-05-22 | 2014-12-24 | 海安县东方特种建材有限公司 | Shrinkage-free cement mineral additive |
| CN115466076B (en) * | 2022-09-06 | 2023-06-23 | 辽宁鹏硕科技有限公司 | Concrete ECI early crack inhibitor and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587313A (en) * | 2004-08-03 | 2005-03-02 | 李树志 | Terpolymerized redispersable emulsion powder and its producing method |
| CN101125739A (en) * | 2006-08-15 | 2008-02-20 | 中国石油天然气集团公司 | High-activity alkali ore slag fly ash inorganic polymer gel material and manufacturing method thereof |
-
2010
- 2010-03-31 CN CN2010101372107A patent/CN101817654B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587313A (en) * | 2004-08-03 | 2005-03-02 | 李树志 | Terpolymerized redispersable emulsion powder and its producing method |
| CN101125739A (en) * | 2006-08-15 | 2008-02-20 | 中国石油天然气集团公司 | High-activity alkali ore slag fly ash inorganic polymer gel material and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吴芳 等.稳定剂对水泥基自流平砂浆基本性能的影响.《化学建材》.2009,第25卷(第6期),41-44. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101817654A (en) | 2010-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108530001B (en) | White wall facing mortar prepared from carbide slag | |
| US7875674B2 (en) | Building materials incorporated with hydrophobic silicone resin(s) | |
| CN103319124B (en) | A kind of building heat preservation dry powder and mortar | |
| CN108658542A (en) | A kind of artificial artistic stone of inorganic environment-friendly and preparation method thereof | |
| CN103467020B (en) | Energy-saving and environment-friendly building ornament material and preparation method thereof | |
| BR112014025101B1 (en) | ALUMINOSSILICATE GEOPOLYMER COMPOSITION, USE OF THE COMPOSITION, METHOD TO PREPARE SUCH COMPOSITION AND CEMENT MIXTURE TO FORM | |
| CN105218024A (en) | A kind of ceramic tile bond | |
| CN102145990A (en) | AC series cement-based self-leveling mortar for floor and preparation method thereof | |
| CN101492263A (en) | Wax shale gray slag base polymer gelled material | |
| CN106673553B (en) | A kind of low cost ceramic tile adhesive and preparation method thereof | |
| CN104045307A (en) | Surface-decorative mortar and preparation method thereof | |
| CN103553495A (en) | Rapid-hardened type veneer stone early-strength adhesive | |
| CN102399073A (en) | Formula and preparation process for dry-mixed mortar | |
| CN106431150A (en) | Method for preparing aerogel composite sandstone plate with construction waste as aggregate and industrial solid waste as admixture | |
| CN106747173A (en) | A kind of self-leveling cement basic ring protects terrace mortar | |
| WO2020206650A1 (en) | Cementitious composition with fast development of tensile adhesion strength | |
| CN103553515B (en) | A kind of dry-mix being mixed with phosphorus slag powder | |
| CN100457413C (en) | Concrete mortar interface processing method | |
| CN104230265B (en) | A kind of plastering material of thin layer and preparation method thereof | |
| AU2008300605B2 (en) | Mixture containing quaternary ammonium compound and its use | |
| CN101817654B (en) | Self-leveling mortar anti-shrinking agent and preparation method and application thereof | |
| CN106278066A (en) | Fast hard impervious gap filler | |
| CN107628790A (en) | A kind of decoration cement | |
| CN107140914A (en) | A kind of stain resistant flashing compound and preparation method thereof | |
| CN107298560A (en) | A kind of anti-permeation cracking-resistant concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200914 Address after: 215500 No.13, Caotang Road, Changshu, Suzhou, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: 200233 room 1, building 388, No. 701, Shanghai, Tianlin Road Patentee before: SHANDONG DONGSHENG NEW MATERIAL Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: No.13 caodang Road, Changshu City, Suzhou City, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211126 Address after: 215500 No. 26, cotton seed farm, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu Bohai New Building Materials Co.,Ltd. Address before: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |