CN101215111A - Method for preparing inner curing agent of cement-base material - Google Patents
Method for preparing inner curing agent of cement-base material Download PDFInfo
- Publication number
- CN101215111A CN101215111A CNA2007101920025A CN200710192002A CN101215111A CN 101215111 A CN101215111 A CN 101215111A CN A2007101920025 A CNA2007101920025 A CN A2007101920025A CN 200710192002 A CN200710192002 A CN 200710192002A CN 101215111 A CN101215111 A CN 101215111A
- Authority
- CN
- China
- Prior art keywords
- cement
- preparation
- agent
- maintenance
- curing
- 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.)
- Granted
Links
Abstract
The invention discloses a process for preparing inner curing agents of cement base materials, wherein the process comprises that mixing, stirring and pouring up silicate raw materials, alkali-activated materials, cement, addictives and water according to a certain weight percentage, static placing the mixture at a normal temperature or under heating, then steam curing at normal or high pressure, and finally grinding cured products into kernels, thereby obtaining the inner curing agents. Adding the inner curing agents into the cement based materials, then improving the relative humidity level on the inner portion of the cement based materials by 8-15%, the extent of hydration improves by 10-20% during one to seven days, and the self contraction factor reduces 50-150*10-6, thereby achieving the goal of controlling, reducing and even eliminating the crazing problem of the cement based materials.
Description
Technical field
The invention belongs to building material field, specifically relate to a kind of preparation method of interior curing agent of cement-based material.
Background technology
In order to reach the cracking of control, minimizing even elimination cement-based material, maintenance process commonly used mainly is natural curing, i.e. initial set begins later on to cover, and final set begins water seasoning later on; Can also adopt the spraying curing agent to form a skim, prevent that the evaporation of moisture from reaching the interior moisture loss of control concrete to be used for the purpose of aquation on the cement-based material surface; Perhaps adopt and steam pressure, vapor cure.More than be maintenance process commonly used, but all exist not enough: because the continuous variation of factors such as cement composition, the effect of natural curing is more and more not obvious, especially in mass concrete, adopts natural curing can not control fissured generation effectively; The maintenance of spray film can not be incubated preferably, and cold and hot variation is big, very easily causes microfracture, and then develops into through crack; And steaming is pressed, vapor cure needs specific equipment, has high input, and construction is inconvenient.The notion of maintenance in proposing in recent years, adopt aqueous porous inorganic material, as pearlstone etc., or the super absorbing particle (SAP) of employing commercial production, join cement-based material inside, when relative humidity decline on every side, these materials will discharge the moisture that self contains, thereby improved the extent of hydration of cement, reduced self-constriction.But the conserving material price is higher in existing, has influenced further promoting the popularization use of this technology.
Summary of the invention
In order to overcome the shortcoming in the above cement-based material maintenance process, solve crack problem in the mass concrete, the object of the present invention is to provide a kind of preparation method of interior curing agent of cement-based material.
Technical scheme
Notion based on interior maintenance, the present invention adopts phyllosilicate material natural or artificial production cheap and that easily obtain to produce interior curing agent, joins cement-based material inside, improves the extent of hydration of cement, reduce self-constriction, reach from the inner basic crack problem that solves of cement-based material.
A kind of preparation method of interior curing agent of cement-based material is characterized in that preparation process is as follows:
(1) takes by weighing silicate starting materials 45-50 part, alkali excitation material 5-20 part, cement 5-10 part, additive 2-5 part, water 18-40 part;
(2) additive and water are joined in silicate starting materials, alkali excitation material and the cement additive, after stirring, build moulding;
(3) the goods of building moulding quiet stopping under normal temperature or heating;
(4) said products is carried out atmospheric steam curing or steam under pressure maintenance;
(5) goods after the above-mentioned maintenance are ground into particle, curing agent in promptly getting.
Above-mentioned preparation method is flying dust, diatomite or the rice hull ash that straw power generation produces at the silicate starting materials described in the step (1).
Above-mentioned preparation method is carbide slag or levigate lime at the alkali excitation material described in the step (1).
Above-mentioned preparation method is that in whipping agent, suds-stabilizing agent, setting accelerator or the air entrapment agent one or more are used at the additive described in the step (1).
Above-mentioned preparation method, Heating temperature is 40 ℃-60 ℃ in step (3), quiet stopping 2-4 hour.
Above-mentioned preparation method, at the atmospheric steam curing described in the step (4), curing temperature is that 70 ℃-100 ℃ time is 12-24 hour.
Above-mentioned preparation method is 0.8-2Mpa at the pressure of the steam under pressure maintenance described in the step (4), and temperature is 170 ℃-198 ℃, maintenance 10-12 hour.
Above-mentioned preparation method is 0.125mm-0.625mm in the particle grain size of pulverizing described in the step (5).
Above-mentioned whipping agent is that colophonium pyrolytic polymer or rosin are saponified; Suds-stabilizing agent is 6501 suds-stabilizing agents or gelatine; Setting accelerator is through 800 ℃ of incinerating alum stone flours and anhydrite powder mixture or the calcium formiate by 1: 1 mass ratio; Air entrapment agent is sodium alkyl benzene sulfonate or sodium laurylsulfonate.
Beneficial effect
The interior curing agent of the present invention's preparation is joined in the cement-based material, can make the relative humidity of cement-based material inside improve 8～15%, 1～7 day aquation degree of cement improves 10～20%, and rate of self-contraction reduces 50～150 * 10
-6Thereby, reach control, reduce even eliminate the cracking problem of cement-based material.
Embodiment
The preparation method of the interior curing agent of embodiment 1 cement-based material, its preparation process is as follows:
(1) material is prepared: take by weighing 5 parts of 7 parts in 48 parts of flying dusts, levigate lime, cement, whipping agent that the straw generating produces and be 0.9 part of colophonium pyrolytic polymer, suds-stabilizing agent and be 0.1 part of 6501 suds-stabilizing agent, setting accelerator and be 800 ℃ of incinerating alum stone flours and anhydrite powder by 3 parts in the mixture of 1: 1 mass ratio, 36 parts in water;
(2) above-mentioned whipping agent, suds-stabilizing agent, setting accelerator and water are joined in the material of flying dust, lime and cement mixing, stir, build moulding;
(3) quiet stopping 2 hours under the goods normal temperature of building moulding;
(4) said products is sent into carried out the steam under pressure maintenance in the autoclave, 175 ℃～195 ℃ of temperature, pressure 0.8～2MPa, maintenance 10～12 hours;
(5) go out still, cooling is ground into the particle of particle diameter in 0.125mm～0.625mm size.The preparation method of the interior curing agent of embodiment 2, cement-based material, its preparation process is as follows:
(1) material is prepared: take by weighing 5 parts of 5 parts in 50 parts of flying dusts, levigate lime, cement, whipping agent that the straw generating produces and be saponified 0.9 part of rosin, suds-stabilizing agent gelatine and be 3 parts of 0.1 parts, setting accelerator calcium formiate, 36 parts in water;
(2) above-mentioned whipping agent, suds-stabilizing agent, setting accelerator and water are joined in the material of flying dust, lime and cement mixing, stir, build moulding;
(3) quiet stopping 3 hours under the goods normal temperature of building moulding;
(4) said products is sent into carried out the steam under pressure maintenance in the autoclave, 175 ℃～195 ℃ of temperature, pressure 0.8～2MPa, maintenance 10～12 hours;
(5) go out still, cooling is ground into the particle of particle diameter in 0.125mm～0.625mm size.
The preparation method of the interior curing agent of embodiment 3, cement-based material, its preparation process is as follows:
[1] takes by weighing 50 parts of rice hull ash, 18 parts of carbide slags, 10 parts of cement, 2 parts of air entrapment agent sodium alkyl benzene sulfonates, 20 parts in water;
[2] air entrapment agent sodium alkyl benzene sulfonate and water are joined in the material of rice hull ash, carbide slag and cement mixing, stir, build moulding;
[3] will build quiet at normal temperatures the stopping 2 hours of goods of moulding;
[4] goods are carried out atmospheric steam curing, 80 ℃ of curing temperatures, maintenance 24 hours.
[5] be broken into the particle of particle diameter in 0.125mm～0.625mm size.
The preparation method of the interior curing agent of embodiment 4 cement-based materials, its preparation process is as follows:
[1] takes by weighing 50 parts of rice hull ash, 20 parts of carbide slags, 10 parts of cement, 2 parts of air entrapment agents, 18 parts in water;
[2] air entrapment agent sodium laurylsulfonate and water are joined in the material of rice hull ash, carbide slag and cement mixing, stir, build moulding;
[3] will build quiet at normal temperatures the stopping 2 hours of goods of moulding;
[4] goods are carried out atmospheric steam curing, 80 ℃ of curing temperatures, maintenance 24 hours.
[5] be broken into the particle of particle diameter in 0.125mm～0.625mm size.
The application example of curing agent in self-compacting concrete and injection material in the embodiment 5
(1) is used in the self-compacting concrete: in 1 cubic metre concrete, water consumption is 180kg, cement 265kg, flyash 185kg, stone 800kg, sand 710kg, water reducer such as toxilic acid (calculating) 1.35kg with solid content, the sodium 0.09kg of retardant Portugal adds curing agent 90kg in this kind in above-mentioned concrete, stir, build moulding; Follow the not concrete ratio of the interior curing agent of admixture, the inside concrete relative humidity that records curing agent in adding improves 10%, and 1～7 day aquation degree of cement improves 14%, rate of self-contraction minimizing 100 * 10
-6
(2) be used in the injection material: proportioning is as 500 parts of cement, 400 parts of the fine sand of particle diameter below 1.25mm, 60 parts of swelling agent such as aluminium sulfate expanding agents, 4 parts of water reducer naphthalenesulfonate formaldehyde condensation compounds, 0.05 part of defoamer such as organosilicon, curing agent is 100 parts in adding in above-mentioned injection material, add 150 parts of stirrings of water, build moulding, injection material with the interior curing agent of admixture this kind is not compared, the injection material internal relative humidity that records curing agent in adding improves 12%, and 1～7 day aquation degree of cement improves 18%, does not have and shrinks.
Claims (8)
1. the preparation method of the interior curing agent of a cement-based material is characterized in that preparation process is as follows:
(1) takes by weighing silicate starting materials 45-50 part, alkali excitation material 5-20 part, cement 5-10 part, additive 2-5 part, water 18-40 part;
(2) additive and water are joined in the material of silicate starting materials, alkali excitation material and cement mixing, after stirring, build moulding;
(3) the goods of building moulding quiet stopping under normal temperature or heating;
(4) said products is carried out atmospheric steam curing or steam under pressure maintenance;
(5) will be ground into particle after the cooling of the goods after the above-mentioned maintenance, curing agent in promptly getting.
2. preparation method according to claim 1 is characterized in that at the silicate starting materials described in the step (1) be flying dust, diatomite or the rice hull ash that straw power generation produces.
3. preparation method according to claim 1 is characterized in that at the alkali excitation material described in the step (1) be carbide slag or levigate lime.
4. preparation method according to claim 1 is characterized in that at the additive described in the step (1) being that in whipping agent, suds-stabilizing agent, setting accelerator or the air entrapment agent one or more are used.
5. preparation method according to claim 1 is characterized in that Heating temperature is 40 ℃-60 ℃ in step (3), quiet stopping 2-4 hour.
6. preparation method according to claim 1 is characterized in that the temperature at the atmospheric steam curing described in the step (4) is 70 ℃-100 ℃, and curing time is 12-24 hour.
7. preparation method according to claim 1 is characterized in that the pressure in the steam under pressure maintenance described in the step (4) is 0.8-2Mpa, and temperature is 170 ℃-198 ℃, maintenance 10-12 hour.
8. preparation method according to claim 1 is characterized in that in the particle grain size that is ground into described in the step (5) be 0.125mm-0.625mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101920025A CN100572318C (en) | 2007-12-28 | 2007-12-28 | A kind of preparation method of interior curing agent of cement-based material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101920025A CN100572318C (en) | 2007-12-28 | 2007-12-28 | A kind of preparation method of interior curing agent of cement-based material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101215111A true CN101215111A (en) | 2008-07-09 |
| CN100572318C CN100572318C (en) | 2009-12-23 |
Family
ID=39621631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101920025A Expired - Fee Related CN100572318C (en) | 2007-12-28 | 2007-12-28 | A kind of preparation method of interior curing agent of cement-based material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100572318C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329093A (en) * | 2010-09-30 | 2012-01-25 | 深圳市陆基投资有限公司 | High-performance concrete expansion agent and preparation method thereof |
| CN102557514A (en) * | 2012-01-11 | 2012-07-11 | 吴剑东 | Organic-inorganic matter chelated gel concrete internal curing agent and preparation method thereof |
| CN102674762A (en) * | 2012-05-08 | 2012-09-19 | 暨南大学 | Preparation method of green fireproof energy-saving composite wallboard |
| CN105152611A (en) * | 2015-10-16 | 2015-12-16 | 江苏名和集团有限公司 | Concrete internal maintenance material and preparation method thereof |
| CN106542786A (en) * | 2016-10-08 | 2017-03-29 | 深圳海龙建筑科技有限公司 | Self-curing concrete and its production method |
| CN107572860A (en) * | 2017-08-29 | 2018-01-12 | 启东海中港建材有限公司 | A kind of concrete air-entrainer and the concrete formulation using this air entraining agent |
| CN107963822A (en) * | 2017-12-29 | 2018-04-27 | 中国民航机场建设集团公司 | It is a kind of to mix interior curing agent and preparation method thereof for airfield pavement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148578A (en) * | 1995-10-23 | 1997-04-30 | 卢崇德 | High fly-ash-contained foam concrete building block and production method thereof |
| CN1182062A (en) * | 1997-11-25 | 1998-05-20 | 揣玉成 | Floatstone-flyash haydite and its production process |
| CN100450961C (en) * | 2006-06-20 | 2009-01-14 | 河北盛华化工有限公司 | Hollow building block of concrete of containing ash of acetylene stones |
| CN101070251A (en) * | 2007-03-29 | 2007-11-14 | 张文德 | Hongcomb coal-slag-ash heat-insulation building brick and producing method |
-
2007
- 2007-12-28 CN CNB2007101920025A patent/CN100572318C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329093A (en) * | 2010-09-30 | 2012-01-25 | 深圳市陆基投资有限公司 | High-performance concrete expansion agent and preparation method thereof |
| CN102557514A (en) * | 2012-01-11 | 2012-07-11 | 吴剑东 | Organic-inorganic matter chelated gel concrete internal curing agent and preparation method thereof |
| CN102674762A (en) * | 2012-05-08 | 2012-09-19 | 暨南大学 | Preparation method of green fireproof energy-saving composite wallboard |
| CN105152611A (en) * | 2015-10-16 | 2015-12-16 | 江苏名和集团有限公司 | Concrete internal maintenance material and preparation method thereof |
| CN106542786A (en) * | 2016-10-08 | 2017-03-29 | 深圳海龙建筑科技有限公司 | Self-curing concrete and its production method |
| CN107572860A (en) * | 2017-08-29 | 2018-01-12 | 启东海中港建材有限公司 | A kind of concrete air-entrainer and the concrete formulation using this air entraining agent |
| CN107963822A (en) * | 2017-12-29 | 2018-04-27 | 中国民航机场建设集团公司 | It is a kind of to mix interior curing agent and preparation method thereof for airfield pavement |
| CN107963822B (en) * | 2017-12-29 | 2020-06-30 | 中国民航机场建设集团有限公司 | Internal curing agent for airport pavement and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100572318C (en) | 2009-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100572318C (en) | A kind of preparation method of interior curing agent of cement-based material | |
| CN103664073B (en) | A kind of autoclave aerated concrete building block utilizing Yellow River Sand to prepare and preparation method thereof | |
| CN103183521B (en) | Light cement foam insulation plate and production method thereof | |
| CN102372476B (en) | Inorganic thermal insulation light mortar and construction method thereof | |
| CN102295471B (en) | Foaming ceramics material prepared through adopting polishing ceramic slags as main raw material, and preparation method thereof | |
| CN100424034C (en) | Compound bricks of phosphogypsum, and producing method | |
| CN103073246B (en) | Special masonry binder for autoclaved aerated concrete | |
| CN102320788A (en) | Lightweight foam concrete insulating brick and its manufacturing method | |
| CN101318796A (en) | Nano-additive agent modified high-strength wall self-thermal insulation material and preparing method thereof | |
| CN111807807A (en) | Non-autoclaved lightweight heat-insulating particle aerated concrete block and preparation method thereof | |
| CN108129160A (en) | A kind of light heat-insulation wall material and preparation method thereof | |
| CN107089841A (en) | A kind of low-cost high-strength foam concrete and preparation method thereof | |
| CN108821730A (en) | A kind of thermal insulation mortar and preparation method thereof | |
| CN103771807A (en) | Light aggregate cell concrete self-insulating building block and preparation method thereof | |
| CN105175003A (en) | Non-lime fly ash autoclaved aerated concrete and preparation method thereof | |
| CN114075060A (en) | Die-pressing inorganic polystyrene particle insulation board and preparation method thereof | |
| CN114573315B (en) | Autoclaved carbonization maintenance regenerated lightweight concrete and preparation method thereof | |
| CN106986663B (en) | Preparation method of foamed concrete building block | |
| CN105399377A (en) | Sound insulation corrosion-resistant thermal insulation wallboard and manufacturing method therefor | |
| CN108314382A (en) | A kind of Novel foaming cement thermal insulation board and preparation method thereof | |
| CN115180907A (en) | Preparation method of novel foam concrete | |
| CN106187281A (en) | A kind of steaming-free air-adding brick utilizing building waste to prepare and preparation method thereof | |
| CN109053121A (en) | A kind of insulation board and preparation method thereof using biomass energy preparation | |
| CN105036674A (en) | Environment-friendly wall thermal insulation composite material and preparation method thereof | |
| CN102557559B (en) | Inorganic building external wall heat-insulation material and producing process |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Yifan Building Materials Industry Co.,Ltd. Assignor: HOHAI University Contract record no.: 2011320000953 Denomination of invention: Method for preparing inner curing agent of cement-base material Granted publication date: 20091223 License type: Exclusive License Open date: 20080709 Record date: 20110708 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20131228 |