CN101172804A - Novel concrete water reducing agent - Google Patents
Novel concrete water reducing agent Download PDFInfo
- Publication number
- CN101172804A CN101172804A CNA2006101460328A CN200610146032A CN101172804A CN 101172804 A CN101172804 A CN 101172804A CN A2006101460328 A CNA2006101460328 A CN A2006101460328A CN 200610146032 A CN200610146032 A CN 200610146032A CN 101172804 A CN101172804 A CN 101172804A
- Authority
- CN
- China
- Prior art keywords
- reducing agent
- water reducing
- concrete water
- novel concrete
- concrete
- 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.)
- Pending
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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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Abstract
The invention relates to concrete water reducing agent, which adopts a-amylase hydrolysis powder or amylum to be matched with functional materials such as citric acid, to produce the slow-hardening water reducing agent with liquefied type, good effect and low cost. The invention is produced and sold at home with price advantage.
Description
The invention belongs to a kind of preparation method of novel concrete water reducing agent liquid preparation.
Cement water reducing agent ordinary water-reducing agent in the market mainly contains the lignosulfonic acid salt, polyalcohols, the Voranol EP 2001 class, humic-acid kind etc., water-reducing rate mainly contains naphthalene sulfonic acid formaldehyde polymer greater than 15% high efficiency water reducing agent, the sulfonated melamine water soluble resin, the thionamic acid salt, maleic acid, polyacrylate graft copolymers etc., these concrete admixtures can both greatly improve concrete and mix and stir with mobile, reduce water consumption, improve pump-conveying property, improve mechanical properties of concrete and intensity, increase concrete weather resistance, economize on resources, accelerating construction progress, prolong the huge effects such as life-span of buildings, and they mostly contain multiple functional component, formulation mostly is the pressed powder type, so price is also higher relatively, energy consumption is relatively also bigger, if only use for this area enterprise, need not long-distance transport, and the function that requires is concentrated relatively.Such as, need the ratio of concrete pump-feed agent more and more higher in the building operation at present, promptly with slow setting, diminishing and good rheological property are major requirement, the liquid water reducer that a kind of price of that untapped production is low, result of use can be made pumping agent well just has very big market.
The present invention seeks to research and develop that a kind of production technique is simple, efficient is high, raw material is extensive, energy consumption is low, the liquid water reducer of low price, slow setting diminishing and good rheological property, to satisfy the needs of the perhaps how specific construction occasion of this area user.
The true technical scheme of the present invention is to utilize a-amylase, hydrolysis flour or starch to produce the concrete retarding water reducer, the starch hydrolysis generates low-molecular-weight and contains the polymkeric substance of a 3-25 glucoside unit, to concrete is kind of a retardation water reducing agent, cooperate a certain amount of other auxiliary agent, can make retardation water reducing agent with fine rheological property.The present invention's prescription is (by mass percentage): flour or starch 10%-35%, and a-amylase is an amount of, citric acid 0.05%-2%, sodium hydroxide is an amount of, and washing powder is a small amount of, and water 65%-88% be heated to 66 ℃-80 ℃, and insulated and stirred got final product about half an hour.
The present invention compared with prior art has: 1, biological enzymolysis efficient height, and speed is fast, and cost is low; 2, utilize renewable resources flour or starch, wide material sources, price is low; 3, under the prerequisite that satisfies the concrete construction requirement, it is low, easy to use, effective to have price, can be used as cheap concrete pump-feed agent; 4, production technique is simple, and energy consumption is low, sells nearby to have higher advantages such as price advantage.
Embodiment: in the heating kettle that 750 gram water are housed, add flour 200 grams under stirring state, a-amylase is an amount of, be heated to about 75 ℃, hydrolysis adds small amounts of sodium hydroxide solution about 30 minutes then, make solution PH equal 10, stop hydrolysis, stir after 10 minutes, add citric acid 1 gram more respectively, washing powder is a small amount of, surplus adds water, make total amount be 1000 the gram, concrete retarding water reducer of the present invention.
Claims (1)
- A kind of novel concrete water reducing agent, it is characterized in that obtaining a kind of retardation water reducing agent with a-amylorrhexis flour or starch, its prescription is flour or starch 10%-35%, a-amylase is an amount of, citric acid 0.05%-2%, washing powder is a small amount of, and sodium hydroxide is a small amount of, water 65%-88%, Heating temperature to 66 ℃-80 ℃, and insulation 10-60 minute, stir novel concrete water reducing agent of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101460328A CN101172804A (en) | 2006-11-01 | 2006-11-01 | Novel concrete water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101460328A CN101172804A (en) | 2006-11-01 | 2006-11-01 | Novel concrete water reducing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101172804A true CN101172804A (en) | 2008-05-07 |
Family
ID=39421593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101460328A Pending CN101172804A (en) | 2006-11-01 | 2006-11-01 | Novel concrete water reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101172804A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462842B (en) * | 2009-01-06 | 2011-06-01 | 孙安稳 | Sulfonic acid ester retardation high efficiency water reducing agent and use thereof |
| CN102229478A (en) * | 2011-04-08 | 2011-11-02 | 江苏博特新材料有限公司 | Preparation method of molasses retarding water reducer and application thereof |
| CN103732556A (en) * | 2011-08-16 | 2014-04-16 | Sika技术股份公司 | Enzymatically inverted saccharose as a dispersant |
| CN108129058A (en) * | 2017-04-27 | 2018-06-08 | 钟建军 | A kind of organic biomass water-reducing agent |
-
2006
- 2006-11-01 CN CNA2006101460328A patent/CN101172804A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462842B (en) * | 2009-01-06 | 2011-06-01 | 孙安稳 | Sulfonic acid ester retardation high efficiency water reducing agent and use thereof |
| CN102229478A (en) * | 2011-04-08 | 2011-11-02 | 江苏博特新材料有限公司 | Preparation method of molasses retarding water reducer and application thereof |
| CN102229478B (en) * | 2011-04-08 | 2013-07-03 | 江苏博特新材料有限公司 | Preparation method of molasses retarding water reducer and application thereof |
| CN103732556A (en) * | 2011-08-16 | 2014-04-16 | Sika技术股份公司 | Enzymatically inverted saccharose as a dispersant |
| CN103732556B (en) * | 2011-08-16 | 2016-09-07 | Sika技术股份公司 | Sucrose as the Enzymatic transformation of dispersant |
| CN108129058A (en) * | 2017-04-27 | 2018-06-08 | 钟建军 | A kind of organic biomass water-reducing agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zou Jingzhong Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080507 |