CN104944829A - Cement accelerating admixture and preparation method thereof - Google Patents
Cement accelerating admixture and preparation method thereof Download PDFInfo
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- CN104944829A CN104944829A CN201510390860.5A CN201510390860A CN104944829A CN 104944829 A CN104944829 A CN 104944829A CN 201510390860 A CN201510390860 A CN 201510390860A CN 104944829 A CN104944829 A CN 104944829A
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- accelerating admixture
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Abstract
The invention discloses a cement accelerating admixture. The cement accelerating admixture comprises a mixed solution which is composed of, by mass, 30-40% of aluminum sulfate, 3%-8% of sodium fluoride, 2%-4% of triethanolamine, 0-3% of polyacrylamide and 45%-60% of water and serves as a main ingredient. The cement accelerating admixture is liquid which is transparent and good in liquidity, and the defects that a traditional alkali-free accelerating admixture is thick and large in stirring resistance are solved. According to experiments, the initial setting time is short, the final setting time is short, the compressive strength is higher than the international degree, the accelerating admixture is free of crystals, the application range is wide, and a higher actual value and a higher economic value are obtained.
Description
Technical field
The invention belongs to chemical material technical field, is the cement solidifies agent and technology of preparing specifically.
Background technology
Cement hardener is a kind of admixture making cement or concrete rapid coagulation, cement can be made to condense in very short time, be mainly used at present spraying concrete or spray furnace engineering, along with development in engineering technology application, the application of accelerating chemicals is more extensive, simultaneously accelerating chemicals changes from solid powdery to liquid accelerator, by alkaline components to without alkali transition.Because accelerating chemicals is containing alkaline components, certain disadvantageous effect is had to early age strength of concrete, later stage ultimate compression strength, weather resistance, especially also corrosion harmfulness is had to workmen's health in use procedure, and the accelerating chemicals viscosity of alkali-free composition is too large, the unfavorable factors such as use content is higher, engineering technical personnel wish to find one can overcome above-mentioned deficiency, the equivalent material of superior performance.
Summary of the invention
The invention provides a kind of cement hardener.
Technical scheme of the present invention is: a kind of cement hardener, and main component comprises the mixing solutions of Tai-Ace S 150 30%-40%, Sodium Fluoride 3%-8%, trolamine 2%-4%, polyacrylamide 0-3%, water 45%-60% composition by mass percentage.
Further technical scheme is: the mixing solutions comprising Tai-Ace S 150 30%-40%, Sodium Fluoride 5.4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.Comprise the mixing solutions of Tai-Ace S 150 36%, Sodium Fluoride 2%-4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.Comprise the mixing solutions of Tai-Ace S 150 36%, Sodium Fluoride 5.4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.
This accelerating chemicals is liquid that is transparent, good fluidity, solves traditional alkali-free quick-coagulant thickness, stirs the deficiency that resistance is large, through test the presetting period short, final setting time is short, ultimate compression strength higher than GB, the accelerating chemicals of nodeless mesh, applied widely, there is higher practical value and economic worth.
Embodiment
For making to have a better understanding and awareness content of the present invention, coordinate detailed description as follows by preferred embodiment:
A kind of cement hardener, main component comprises the mixing solutions of Tai-Ace S 150 30%-40%, Sodium Fluoride 3%-8%, trolamine 2%-4%, polyacrylamide 0-3%, water 45%-60% composition by mass percentage.
Further technical scheme is: the mixing solutions comprising Tai-Ace S 150 30%-40%, Sodium Fluoride 5.4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.Comprise the mixing solutions of Tai-Ace S 150 36%, Sodium Fluoride 2%-4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.Comprise the mixing solutions of Tai-Ace S 150 36%, Sodium Fluoride 5.4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.
Certain alkali-free quick-coagulant composition comprises Tai-Ace S 150, Sodium Fluoride, sodium aluminate, trolamine, sepiolite, surplus are water.Analyze and test as follows: the aluminium element of nonionic state can not promote cement fast hydration at short notice, its short solidifying DeGrain; Sodium aluminate and Tai-Ace S 150 mixed dissolution, produce precipitation of alumina, and sodium aluminate can also accelerated oxidation aluminum precipitation, impels the alkalescence of accelerating chemicals to increase, need add Tai-Ace S 150 and stablize its potential of hydrogen; Found through experiments, polyacrylamide and sodium aluminate can form the solution of stable homogeneous, and polyacrylamide has good rapid hardening effect, polyacrylamide can be adsorbed on two or more cement molecule in cement, grout can be made more easily to form long-range coherent structure, be that grout viscosity increases, shorten the grout presetting period, so polyacrylamide is key component in accelerating chemicals.
The rapid solidification agent experiment of foregoing invention is as follows: anthology invention accelerating chemicals, by national standard test method, 6%, 7%, 8% mixes in certain grade cement chosen in market and stirs by mass percentage; Experimental data is: the presetting period is respectively 4.2 minutes, 2.4 minutes, 1.4 minutes, and final setting time is respectively 8.2 minutes, 5.8 minutes, 4.3 minutes, and the compression tests data correspondence of a day is: 10.2MPa, 12.4MPa, 12.9MPa; The compression tests data correspondence of 28 days is: 40.3MPa, 49.5MPa, 52.1MPa.The ultimate compression strength in one sky reaches national acceptable end product requirement, and within 28 days, compressive strength rate exceeds Standard 75%, and the basic free of losses of later strength.
Claims (4)
1. a cement hardener, main component comprises the mixing solutions of Tai-Ace S 150 30%-40%, Sodium Fluoride 3%-8%, trolamine 2%-4%, polyacrylamide 0-3%, water 45%-60% composition by mass percentage.
2. cement hardener according to claim 1, is characterized in that the mixing solutions comprising Tai-Ace S 150 30%-40%, Sodium Fluoride 5.4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.
3. cement hardener according to claim 1, is characterized in that the mixing solutions comprising Tai-Ace S 150 36%, Sodium Fluoride 2%-4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.
4. cement hardener according to claim 1, is characterized in that the mixing solutions comprising Tai-Ace S 150 36%, Sodium Fluoride 5.4%, trolamine 2.7%, polyacrylamide 1.2%, water 54.5% composition by mass percentage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510390860.5A CN104944829A (en) | 2015-07-01 | 2015-07-01 | Cement accelerating admixture and preparation method thereof |
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| CN201510390860.5A CN104944829A (en) | 2015-07-01 | 2015-07-01 | Cement accelerating admixture and preparation method thereof |
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| CN104944829A true CN104944829A (en) | 2015-09-30 |
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| CN201510390860.5A Pending CN104944829A (en) | 2015-07-01 | 2015-07-01 | Cement accelerating admixture and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673484A (en) * | 2016-12-29 | 2017-05-17 | 石家庄市易达恒联路桥材料有限公司 | Alkali-free liquid accelerating agent and normal-temperature preparation method thereof |
| CN107473620A (en) * | 2017-08-11 | 2017-12-15 | 五家渠格辉新材料有限责任公司 | A kind of alkali-free liquid concrete accelerator and its preparation method and application |
| CN107721240A (en) * | 2017-11-15 | 2018-02-23 | 莱芜市易和环保科技有限公司 | A kind of alkali-free quick-coagulant and preparation method thereof |
| CN108249810A (en) * | 2018-01-23 | 2018-07-06 | 云南森博混凝土外加剂有限公司 | A kind of preparation method of strong concrete accelerator |
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| JP2002029808A (en) * | 2000-07-07 | 2002-01-29 | Denki Kagaku Kogyo Kk | Dry cement concrete, spraying material and spray process using the same |
| CN101423356A (en) * | 2008-11-20 | 2009-05-06 | 同济大学 | Environment-friendly type alkali-free liquid accelerator for sprayed concrete and preparation method thereof |
| CN102219433A (en) * | 2011-05-04 | 2011-10-19 | 山西潞安环保能源开发股份有限公司 | Low-resilience high-strength sprayed concrete liquid accelerating agent and preparation method thereof |
| CN102249592A (en) * | 2011-06-01 | 2011-11-23 | 中国水利水电科学研究院 | Alkali-free chlorine-free high-early-strength liquid accelerator and preparation method thereof |
| CN103058565A (en) * | 2013-01-07 | 2013-04-24 | 山东科技大学 | Enhanced and low-rebound liquid setting accelerator used in wet spraying process |
| CN103664034A (en) * | 2013-11-15 | 2014-03-26 | 交通运输部公路科学研究所 | Liquid accelerator for sprayed concrete and preparation method and application thereof |
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2015
- 2015-07-01 CN CN201510390860.5A patent/CN104944829A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002029808A (en) * | 2000-07-07 | 2002-01-29 | Denki Kagaku Kogyo Kk | Dry cement concrete, spraying material and spray process using the same |
| CN101423356A (en) * | 2008-11-20 | 2009-05-06 | 同济大学 | Environment-friendly type alkali-free liquid accelerator for sprayed concrete and preparation method thereof |
| CN102219433A (en) * | 2011-05-04 | 2011-10-19 | 山西潞安环保能源开发股份有限公司 | Low-resilience high-strength sprayed concrete liquid accelerating agent and preparation method thereof |
| CN102249592A (en) * | 2011-06-01 | 2011-11-23 | 中国水利水电科学研究院 | Alkali-free chlorine-free high-early-strength liquid accelerator and preparation method thereof |
| CN103058565A (en) * | 2013-01-07 | 2013-04-24 | 山东科技大学 | Enhanced and low-rebound liquid setting accelerator used in wet spraying process |
| CN103664034A (en) * | 2013-11-15 | 2014-03-26 | 交通运输部公路科学研究所 | Liquid accelerator for sprayed concrete and preparation method and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673484A (en) * | 2016-12-29 | 2017-05-17 | 石家庄市易达恒联路桥材料有限公司 | Alkali-free liquid accelerating agent and normal-temperature preparation method thereof |
| CN107473620A (en) * | 2017-08-11 | 2017-12-15 | 五家渠格辉新材料有限责任公司 | A kind of alkali-free liquid concrete accelerator and its preparation method and application |
| CN107721240A (en) * | 2017-11-15 | 2018-02-23 | 莱芜市易和环保科技有限公司 | A kind of alkali-free quick-coagulant and preparation method thereof |
| CN108249810A (en) * | 2018-01-23 | 2018-07-06 | 云南森博混凝土外加剂有限公司 | A kind of preparation method of strong concrete accelerator |
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Application publication date: 20150930 |
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