CN102079641A - Compound early strength agent for concrete - Google Patents
Compound early strength agent for concrete Download PDFInfo
- Publication number
- CN102079641A CN102079641A CN 200910220168 CN200910220168A CN102079641A CN 102079641 A CN102079641 A CN 102079641A CN 200910220168 CN200910220168 CN 200910220168 CN 200910220168 A CN200910220168 A CN 200910220168A CN 102079641 A CN102079641 A CN 102079641A
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- CN
- China
- Prior art keywords
- concrete
- early strength
- compound
- hardening accelerator
- agent
- 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.)
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Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a novel compound early strength agent for concrete. Compared with the prior art, the compound early strength agent for concrete has the advantages of low cost, easily-obtained, non-toxic and harmless raw materials, no pollution on the used environment, and impervious, anticarbon, anti-icing and cement-quickened hydration reaction, thereby obviously improving the compression strength of concrete in each age, efficiently preventing the corrosion action of chlorine ions to reinforcing steel, promoting the final setting of the concrete, and reducing the initial final setting time interval of the concrete. The compound early strength agent for the concrete consists of an early strength compound, a water reducing compound, a stabilizing agent and a modifying agent.
Description
Technical field: the present invention relates to a kind of composite concrete hardening accelerator, be used for the construction industry concrete construction, improve concrete early anaphase intensity and shorten setting time.
Background technology:, also more and more higher to concrete requirement along with rapid economic development.For satisfying the high standard requirement of construction.Now, concrete admixture constantly develops to the direction of efficient, multi-functional and compoundization.Adopt admixture can significantly improve concrete various physical and chemical index.As improve concrete stability, homogeneity, do not emanate, bleeding, early strong, high-strength etc. not.Early stage hardening accelerator major part is formed by ferrous sulfate, Industrial Salt, flyash, Paris white configuration, can improve concrete early strength, but not take into account the problem of later strength simultaneously.Studying and a kind ofly both can improve concrete early strength, can improve the hardening accelerator of later strength again, is pressing for of construction industry.
Provide a kind of and not only can increase substantially concrete early strength and later strength, can also optimize the concrete early strength agent of concrete various physical and chemical indexs.It is purpose of the present invention.
Summary of the invention: the invention provides a kind of new composite concrete hardening accelerator, the present invention compared with prior art, have following advantage: low-cost, starting material are easy to get, nontoxic, to the environmental nonpollution that uses, impervious, anti-charing, antifreeze, the hydration reaction of accelerating cement obviously improve the ultimate compression strength in concrete each length of time, effectively stop the corrosive nature of chlorion to reinforcing bar, promote concrete final set, reduce concrete final setting time interval just.
The present invention is made up of accelerating component, diminishing component, stablizer, conditioning agent.
Accelerating component can be sal epsom, Tai-Ace S 150, water glass, wherein a kind of, two or three; The diminishing component is a naphthalene sulfonic acidformaldehyde condensation product; Stablizer can be a trolamine, urea, formaldehyde, wherein a kind of, two or three; Conditioning agent is a Monoethanolamine MEA BASF.
Each composition of the present invention by mass ratio is: accelerating component (5-70%), diminishing component (2-30%), stablizer (2-25%), conditioning agent (1-25%).
Embodiment 1: sal epsom (30%), Tai-Ace S 150 (40%), naphthalene sulfonic acidformaldehyde condensation product (15%), trolamine (10%), Monoethanolamine MEA BASF (5%).
Embodiment 2: sal epsom (30%), water glass (40%), naphthalene sulfonic acidformaldehyde condensation product (10%), urea (15%), Monoethanolamine MEA BASF (5%).
Embodiment 3: Tai-Ace S 150 (70%), naphthalene sulfonic acidformaldehyde condensation product (10%), trolamine (15%), Monoethanolamine MEA BASF (5%).
Embodiment 4: sal epsom (30%), Tai-Ace S 150 (20%), water glass (20%), naphthalene sulfonic acidformaldehyde condensation product (10%), urea (15%), Monoethanolamine MEA BASF (5%).
Embodiment 5: sal epsom (20%), Tai-Ace S 150 (30%), water glass (20%), naphthalene sulfonic acidformaldehyde condensation product (10%), urea (10%), formaldehyde (5%), Monoethanolamine MEA BASF (5%).
Embodiment 6: sal epsom (20%), Tai-Ace S 150 (30%), water glass (20%), naphthalene sulfonic acidformaldehyde condensation product (10%), trolamine (5%) urea (5%), formaldehyde (5%), Monoethanolamine MEA BASF (5%).
Claims (6)
1. new composite concrete hardening accelerator, it is characterized in that: hardening accelerator is made up of accelerating component, diminishing component, stablizer, conditioning agent.
2. by the described hardening accelerator of claim 1, it is characterized in that: accelerating component can be sal epsom, Tai-Ace S 150, water glass, wherein a kind of, two or three.
3. by the described hardening accelerator of claim 1-2, it is characterized in that: the diminishing component is a naphthalene sulfonic acidformaldehyde condensation product.
4. by the described hardening accelerator of claim 1-3, it is characterized in that: stablizer can be a trolamine, urea, formaldehyde, wherein a kind of, two or three.
5. by the described hardening accelerator of claim 1-4, it is characterized in that used conditioning agent is a Monoethanolamine MEA BASF.
6. by the described hardening accelerator of claim 1-5, it is characterized in that each composition by mass ratio is: accelerating component (5-70%), diminishing component (2-30%), stablizer (2-25%), conditioning agent (1-25%).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910220168 CN102079641A (en) | 2009-11-26 | 2009-11-26 | Compound early strength agent for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910220168 CN102079641A (en) | 2009-11-26 | 2009-11-26 | Compound early strength agent for concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102079641A true CN102079641A (en) | 2011-06-01 |
Family
ID=44085867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910220168 Pending CN102079641A (en) | 2009-11-26 | 2009-11-26 | Compound early strength agent for concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102079641A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617066A (en) * | 2012-03-12 | 2012-08-01 | 清华大学 | Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator |
| CN104402286A (en) * | 2014-11-11 | 2015-03-11 | 安徽创业机电设备有限公司 | Concrete early strong agent and preparation method thereof |
| CN104710128A (en) * | 2015-03-11 | 2015-06-17 | 东南大学 | Super early strength accelerator for portland cement concrete |
| CN105060756A (en) * | 2015-08-07 | 2015-11-18 | 马鞍山十七冶工程科技有限责任公司 | Steel skeleton light board early strength agent and preparation method thereof |
| CN105503006A (en) * | 2015-12-30 | 2016-04-20 | 卓达新材料科技集团威海股份有限公司 | Early strength agent used for ordinary Portland cement fiberboards |
| CN105503020A (en) * | 2015-12-30 | 2016-04-20 | 卓达新材料科技集团威海股份有限公司 | Early strength agent used for ordinary Portland cement fiberboards |
| CN108249845A (en) * | 2017-12-13 | 2018-07-06 | 镇江建科建设科技有限公司 | A kind of Organic-inorganic composite early strength agent and the self-compacting concrete prepared using the early strength agent |
| CN108892413A (en) * | 2018-09-12 | 2018-11-27 | 十堰市郧阳区成林工贸有限责任公司 | Concrete complex accelerator and preparation method thereof |
| CN109336443A (en) * | 2018-09-26 | 2019-02-15 | 南通久拓混凝土有限公司 | A kind of concrete potent dose and its preparation process |
-
2009
- 2009-11-26 CN CN 200910220168 patent/CN102079641A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617066A (en) * | 2012-03-12 | 2012-08-01 | 清华大学 | Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator |
| CN102617066B (en) * | 2012-03-12 | 2014-01-01 | 清华大学 | Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator |
| CN104402286A (en) * | 2014-11-11 | 2015-03-11 | 安徽创业机电设备有限公司 | Concrete early strong agent and preparation method thereof |
| CN104710128A (en) * | 2015-03-11 | 2015-06-17 | 东南大学 | Super early strength accelerator for portland cement concrete |
| CN105060756A (en) * | 2015-08-07 | 2015-11-18 | 马鞍山十七冶工程科技有限责任公司 | Steel skeleton light board early strength agent and preparation method thereof |
| CN105503006A (en) * | 2015-12-30 | 2016-04-20 | 卓达新材料科技集团威海股份有限公司 | Early strength agent used for ordinary Portland cement fiberboards |
| CN105503020A (en) * | 2015-12-30 | 2016-04-20 | 卓达新材料科技集团威海股份有限公司 | Early strength agent used for ordinary Portland cement fiberboards |
| CN105503020B (en) * | 2015-12-30 | 2018-01-30 | 卓达新材料科技集团威海股份有限公司 | A kind of early strength agent for Portland cement fiberboard |
| CN108249845A (en) * | 2017-12-13 | 2018-07-06 | 镇江建科建设科技有限公司 | A kind of Organic-inorganic composite early strength agent and the self-compacting concrete prepared using the early strength agent |
| CN108892413A (en) * | 2018-09-12 | 2018-11-27 | 十堰市郧阳区成林工贸有限责任公司 | Concrete complex accelerator and preparation method thereof |
| CN109336443A (en) * | 2018-09-26 | 2019-02-15 | 南通久拓混凝土有限公司 | A kind of concrete potent dose and its preparation process |
| CN109336443B (en) * | 2018-09-26 | 2021-06-25 | 南通盛茂建材科技有限公司 | Concrete strong-effect agent and preparation process thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110601 |