CN1051032A - Rapid hardening agent of concrete - Google Patents
Rapid hardening agent of concrete Download PDFInfo
- Publication number
- CN1051032A CN1051032A CN 89107852 CN89107852A CN1051032A CN 1051032 A CN1051032 A CN 1051032A CN 89107852 CN89107852 CN 89107852 CN 89107852 A CN89107852 A CN 89107852A CN 1051032 A CN1051032 A CN 1051032A
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- China
- Prior art keywords
- accelerating chemicals
- concrete
- aluminum oxide
- present
- accelerating
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
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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 novel accelerating chemicals that is used to prepare jeting cement concrete is the admixture of using in the mine combined bolting and shotcrete engineering; The weak point that domestic and international existing accelerating chemicals exists is that production accelerating chemicals consumption soda ash quantity is big; Later strength reduces big when using accelerating chemicals, though the kind that has does not have above-mentioned shortcoming, but the shortcoming of short, easy-weathering storage period is arranged, the present invention does not have above-mentioned shortcoming, its formula range is aluminum oxide clinker 50-75%, calcined alunite or alum mud 25-35%, zinc sulfate 0-7%, all the other components are anhydrite and unslaked lime.
Description
The present invention is a kind of cement concrete accelerating chemicals, is used to prepare sprayed concrete, is indispensable admixture in the mine combined bolting and shotcrete engineering.
External existing accelerating chemicals mainly contains western ancient nit (Sigunite), Aesop Ge Laite (Isocrete) and Te Like Zha Er (Tricosal), and they are all with yellow soda ash (Na
2CO
3) and sodium aluminate (NaAlO
2) be main component, volume is generally 2～4% of cement weight, and the mixing of these accelerating chemicalss makes 28 days ultimate compression strength of cement concrete reduce by 20～40%, by retrieval the outer prescription of authentication state and the present invention no identical person that fills a prescription.Domestic commercially available accelerating chemicals is to be equipped with an amount of soda ash with independent aluminum oxide clinker or aluminum oxide clinker basically, lime, and inorganic materials such as dehydrated gyp-or alum mud are main component, its prescription is also different with the present invention.More than both at home and abroad the deficiencies in the prior art part be to produce accelerating chemicals to consume soda ash quantity very big (domestic present soda ash is in short supply), and in use, 28 days intensity of sprayed concrete reduces bigger, homemade 782 type accelerating chemicalss, though alkali charge is low, later strength reduces less, but product is in storage process, easy-weathering very, make and condense slack-offly, can't use, and when the preparation sprayed concrete, the accelerating chemicals consumption is also more, and the contrast of the present invention and domestic several Hardenfast main economic and technical indices sees Table 3.
Task of the present invention is at above-mentioned several accelerating chemicalss existing problem in producing and using, and proposes a kind of novel concrete Hardenfast prescription, and through experimental verification, proves its technology really, and economic target is than existing concrete accelerating chemicals advanced person.
Cement concrete accelerating chemicals of the present invention is based on the aluminum oxide clinker of existing factory; This aluminum oxide clinker is with Wingdale, alumina, soda ash cooperates by a certain percentage, through grinding, calcining forms, this technology is the industry known technology, aluminum oxide clinker is that cement is condensed rapidly is indispensable, but when considering its consumption, required time of coagulation should guaranteed to reach, have again under the prerequisite of good resistance weatherability simultaneously, reduce its consumption, so that the cement later strength reduces minimum, the important component of another of accelerating chemicals of the present invention is calcined alunite or alum mud as far as possible, can form the ettringite structure with cement, promotion is condensed, and improves 28 days intensity, can reduce the basicity of accelerating chemicals again, on the basis of above two components, it is faster that the introducing of an amount of zinc sulfate can make cement slurry condense, and intensity was higher in 28 days, and 28 days intensity reduces the percentage minimum simultaneously.For reducing the consumption of aluminum oxide clinker, reduce cost in addition, can add an amount of anhydrite and (or) unslaked lime, its content respectively is no more than 10%.
The formula range of rapid hardening agent of concrete of the present invention is as showing I:
The table I
| Component | Aluminum oxide clinker | Burning alunite or alum mud | Zinc sulfate | Unslaked lime | Anhydrite |
| The proportioning weight percentage | 50～75 | 25～35 | 0～7 | 0～10 | 0～10 |
Be made into compound by said ratio, mix, grinding in grinding machine, by the 0.080mm square hole sieve, require to tail over＜10%.Be mixed with sprayed concrete in this kind accelerating chemicals adding Portland cement, addition content is 4～5%, time of coagulation, general initial set was less than 3 minutes, final set was less than 6 minutes, the accelerating chemicals that does not add zinc sulfate in the prescription, sprayed concrete with its preparation, ultimate compression strength was blank (not adding accelerating chemicals) more than 80% of Comparative Examples in 28 days, when the zinc sulfate that adds 4～7% in the accelerating chemicals prescription, with the sprayed concrete of its preparation, its 28 days ultimate compression strength can reach 85～95% of blank (not adding accelerating chemicals) Comparative Examples, and the novel accelerating chemicals of the present invention adopts calcined alunite to be made into rapid hardening agent of concrete as main component and aluminum oxide clinker etc., received good result, on technical feature, calcined alunite can replace with alum mud, but does not directly need oven dry with calcined alunite, help simplifying transportation, store and proportioning process.
The calcining temperature of alunite should be controlled at 600～700 ℃, makes the alum earth activation, forms more potassium aluminium sulfate and activated alumina.
Novel concrete Hardenfast of the present invention can add 0～7% zinc sulfate when preparation, test-results shows adding zinc sulfate, can not only improve the later strength of cement, and can quicken to condense;
In addition, can also add 0～10% anhydrite and (or) 0～10% unslaked lime, to reduce the consumption of aluminum oxide clinker, reduce production costs.
The embodiment of rapid hardening agent of concrete of the present invention such as following table 2 are listed time of coagulation and the 28 days strength retention ratio of the cooperation ratio of accelerating chemicals and the sprayed concrete of preparing in the table.
Table 2
Cement concrete accelerating chemicals of the present invention is listed in table 3 in the colliery scene test-results
Table 3
Advantage of the present invention and effect are:
1. with the sprayed concrete of rapid hardening agent of concrete preparation of the present invention, cement setting time can satisfy the spraying operation requirement, and rebound degree is low, the later strength height, and the ultimate compression strength retention rate can reach more than 80% in 28 days, admixture zinc sulfate, and the ultimate compression strength retention rate can reach more than 90% in 28 days.
2. the present invention is to be main component with aluminum oxide clinker and procoagulant activity agent calcined alunite or alum mud, introduces zinc sulfate and improves later strength, the advantage of its existing 782 type accelerating chemicals; Be that alkali charge is few, later stage ultimate compression strength reduces few, has overcome 782 type accelerating chemicals easy-weathering short shortcomings storage period again.
3. the present invention compares with the fine aluminium oxygen grog type of existing common use, the per ton saving about soda ash 100Kg, and only this item can reduce cost about 100 yuan, and, because it is alkalescence is little, lighter with operator's skin lesion of jet cement to behaviour.
4. domestic existing accelerating chemicals factory need not increase equipment, fund, this product of can changing the line of production.
Claims (1)
1, a kind of novel accelerating chemicals that is used to prepare cement concrete is characterized in that this accelerating chemicals has following formula range:
Aluminum oxide clinker 50～75%
Calcined alunite or alum mud 25～35%
Zinc sulfate 0～7%
Unslaked lime 0～10%
Anhydrite 0～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89107852 CN1051032A (en) | 1989-10-17 | 1989-10-17 | Rapid hardening agent of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89107852 CN1051032A (en) | 1989-10-17 | 1989-10-17 | Rapid hardening agent of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1051032A true CN1051032A (en) | 1991-05-01 |
Family
ID=4857362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89107852 Pending CN1051032A (en) | 1989-10-17 | 1989-10-17 | Rapid hardening agent of concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1051032A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2703382A1 (en) * | 1993-03-30 | 1994-10-07 | Warmoctro Bv | Plaster composition for the interior. |
| FR2703383A1 (en) * | 1993-03-30 | 1994-10-07 | Warmoctro Bv | Fine plastering for the interior. |
| CN100363290C (en) * | 1999-12-08 | 2008-01-23 | 建筑研究及技术有限责任公司 | Preparation of concrete accelerator |
| 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 |
| CN102482153A (en) * | 2009-09-02 | 2012-05-30 | 建筑研究和技术有限公司 | Sprayable hydraulic binder composition and method of use |
| CN102491711A (en) * | 2011-12-03 | 2012-06-13 | 山西沁新能源集团股份有限公司 | Mine high-water quick-setting material |
| CN103880320A (en) * | 2014-02-23 | 2014-06-25 | 谷苗苗 | Preparation method of mineral admixture by taking dickite as main raw material |
| CN103880322A (en) * | 2014-02-09 | 2014-06-25 | 黄小仙 | Method for preparing constructional composite mineral admixture |
| CN103880321A (en) * | 2014-02-09 | 2014-06-25 | 黄小仙 | Method for preparing cementing material mix of taking alumina clinker as primary raw material |
| CN105130265A (en) * | 2015-09-11 | 2015-12-09 | 王嘉文 | Efficient concrete accelerator |
| CN105130243A (en) * | 2015-08-24 | 2015-12-09 | 湖州华仑助剂科技有限公司 | Concrete accelerator |
| CN105236812A (en) * | 2015-09-11 | 2016-01-13 | 王嘉文 | Concrete accelerator |
| CN108793809A (en) * | 2018-09-12 | 2018-11-13 | 十堰市郧阳区成林工贸有限责任公司 | Concrete accelerator and preparation method thereof |
| CN113461376A (en) * | 2021-07-28 | 2021-10-01 | 核工业华东建设工程集团有限公司 | Grouting slurry for reinforcing tunnel and grouting method |
-
1989
- 1989-10-17 CN CN 89107852 patent/CN1051032A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2703383A1 (en) * | 1993-03-30 | 1994-10-07 | Warmoctro Bv | Fine plastering for the interior. |
| FR2703382A1 (en) * | 1993-03-30 | 1994-10-07 | Warmoctro Bv | Plaster composition for the interior. |
| CN100363290C (en) * | 1999-12-08 | 2008-01-23 | 建筑研究及技术有限责任公司 | Preparation of concrete accelerator |
| CN102482153A (en) * | 2009-09-02 | 2012-05-30 | 建筑研究和技术有限公司 | Sprayable hydraulic binder composition and method of use |
| CN102219433B (en) * | 2011-05-04 | 2015-06-10 | 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 |
| 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 |
| CN102491711A (en) * | 2011-12-03 | 2012-06-13 | 山西沁新能源集团股份有限公司 | Mine high-water quick-setting material |
| CN104773966A (en) * | 2014-02-09 | 2015-07-15 | 黄小仙 | Preparation method of binding material mix |
| CN104773966B (en) * | 2014-02-09 | 2017-02-22 | 南通科达建材股份有限公司 | Preparation method of binding material mix |
| CN103880322A (en) * | 2014-02-09 | 2014-06-25 | 黄小仙 | Method for preparing constructional composite mineral admixture |
| CN103880321A (en) * | 2014-02-09 | 2014-06-25 | 黄小仙 | Method for preparing cementing material mix of taking alumina clinker as primary raw material |
| CN104773969A (en) * | 2014-02-09 | 2015-07-15 | 黄小仙 | Method for preparing complex mineral admixture for building |
| CN104773969B (en) * | 2014-02-09 | 2017-02-08 | 山东永远住宅工业化科技有限公司 | Method for preparing complex mineral admixture for building |
| CN103880321B (en) * | 2014-02-09 | 2016-01-20 | 河南中州路桥建设有限公司 | A kind of take aluminum oxide clinker as the preparation method of the gelling material mixed material of main raw material |
| CN103880320A (en) * | 2014-02-23 | 2014-06-25 | 谷苗苗 | Preparation method of mineral admixture by taking dickite as main raw material |
| CN105130243A (en) * | 2015-08-24 | 2015-12-09 | 湖州华仑助剂科技有限公司 | Concrete accelerator |
| CN105236812A (en) * | 2015-09-11 | 2016-01-13 | 王嘉文 | Concrete accelerator |
| CN105130265A (en) * | 2015-09-11 | 2015-12-09 | 王嘉文 | Efficient concrete accelerator |
| CN108793809A (en) * | 2018-09-12 | 2018-11-13 | 十堰市郧阳区成林工贸有限责任公司 | Concrete accelerator and preparation method thereof |
| CN113461376A (en) * | 2021-07-28 | 2021-10-01 | 核工业华东建设工程集团有限公司 | Grouting slurry for reinforcing tunnel and grouting method |
| CN113461376B (en) * | 2021-07-28 | 2023-08-15 | 核工业华东建设工程集团有限公司 | Grouting slurry and grouting method for reinforcing tunnel hole |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |