CN1213656A - Solid hydramine concrete early strength agent - Google Patents
Solid hydramine concrete early strength agent Download PDFInfo
- Publication number
- CN1213656A CN1213656A CN 98121522 CN98121522A CN1213656A CN 1213656 A CN1213656 A CN 1213656A CN 98121522 CN98121522 CN 98121522 CN 98121522 A CN98121522 A CN 98121522A CN 1213656 A CN1213656 A CN 1213656A
- Authority
- CN
- China
- Prior art keywords
- reaction
- hydramine
- product
- solid
- acid
- 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
Links
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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
-
- 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
- C04B2103/10—Accelerators; Activators
- C04B2103/14—Hardening accelerators
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A hydromine kind of solid early-strengthening agent for concrete is an improvement on alcohol amine one, and is prepared from hydramine, acid and alkali through proportioning and reaction at a certain temp. Its advantages include no poison, not air slaking easily, and easy application, package, transportation and weighing.
Description
The invention belongs to the concrete admixture field, relate to a kind of be suitable for concrete construction, thanomin modified version solid hydramine concrete early strength agent.
The effect of concrete early strength agent is:
1) can improve early age strength of concrete, thereby can accelerate the template turnover, improve construction speed.
2) be used for winter construction with other admixture is compound, can improve early strength greatly, reduce early stage freeze injury.The weak point of existing liquid ethanol amine hardening accelerator:
1) packing, transportation inconvenience can only be used the plastics barreled owing to be in a liquid state under the thanomin normal temperature during packing, and is frangible and Packing Fee is high; During a large amount of the transportation, can only select the liquid tank entrucking for use, inconvenience and trucking costs height.
2) weighing, pipette inconvenience, need during weighing with containers such as beakers, and sticking wall of container phenomenon is serious, so difficultly accurately take by weighing because thanomin is that liquid and viscosity are bigger.And that when construction requires add-on is very strict, because the size of add-on is very big to concrete early strength influence.
3) admixture, the inconvenient liquid hardening accelerator of construction at first will take by weighing an amount of this liquid and dilute in water in use, pour in the concrete then and mix thoroughly.Because concrete amount is very big during site operation, the operation of this road weighing, dilution will delay speed of application, waste of manpower, material resources and time.
The present invention's purpose is the work characteristics in conjunction with the concrete site operation, develop a kind of have be convenient to produce, the solid hydramine hardening accelerator of packing, transportation, construction, in order to overcome the defective that existing liquid hardening accelerator exists, make the workmen feel safe at work, make things convenient for, weighing is accurate and time saving and energy saving, and then is improved its working efficiency.
The present invention's solid hydramine hardening accelerator is through two step chemical reaction synthetic:
1) A and B reaction generates intermediate product C by mass ratio 5: 1-3 feeds intake, and temperature of reaction 50-200 ℃, product is a clear crystal.Wherein: A is alcamine compounds such as diethanolamine, trolamine, dipropanolamine, tripropanol amine, diisopropanolamine (DIPA), tri-isopropanolamine, two butanolamines, three butanolamines; B is acid compounds such as phosphoric acid, aluminium hydroxide, boric acid, silicic acid, sulfurous acid.
2) product C of above-mentioned reaction generates final product Z by mass ratio 6-8 with D reaction again: 1-2 feeds intake, and temperature of reaction 100-200 ℃, product be slightly yellowy jelly, and solidifiable after the cooling can be Powdered through grinding.Wherein: D is that bases compound: Z such as sodium oxide, sodium hydroxide, potassium oxide, potassium hydroxide, calcium oxide, oxygen calcium oxide, magnesium oxide, magnesium hydroxide are solid hydramine hardening accelerator.
The present invention's solid hydramine hardening accelerator compares to liquid ethanol amine hardening accelerator, has following characteristics:
1) the identical the present invention's of performance solid hydramine hardening accelerator is compared with liquid ethanol amine hardening accelerator, and the addition content in concrete quite or lower slightly makes early age strength of concrete increase degree quite (1d intensity can increase about 100%).
2) be convenient to packing, transportation and this solid hydramine of weighing hardening accelerator as pulverulent solids, can pack with Polywoven Bag, also do not need liquid tank entrucking or plastics to disclose during transportation, weighing is also very accurate, convenient.
3) this solid hardening accelerator of being convenient to construct can directly mix in the cement concrete and mixes thoroughly, adds water then and becomes reconciled and get final product.Thereby can reduce operations such as in water, diluting hardening accelerator, time saving and energy saving, accelerate speed of application, increase work efficiency.
4) be difficult for deliquescence, be convenient to leave in the process of depositing, this solid hardening accelerator is deliquescence hardly, does not lump.
5) nontoxic safe in utilization, free from environmental pollution.
Embodiment 1
Mix hydramine A: diethanolamine (5%W/W)+trolamine (80%W/W)+dipropanolamine (15%W/W); Mixing acid B: phosphoric acid (20%W/W)+boric acid (50%W/W)+sulfurous acid (30%W/W); Feed ratio A: B is 5: 1.7, and 80 ℃ of temperature of reaction stirred 2-3 minute, gets intermediate product C.
Then, add mixed base D among the above-mentioned again reaction product C, D is: sodium hydroxid (10%W/W)+calcium oxide (50%W/W)+magnesium oxide (40%W/W), feed ratio C: D is 67: 11, and temperature stirred 5 minutes for 130 ℃, after the cooling, airing in the air is pulverized, and promptly gets product Z.
Z is mixed concrete and compound with other admixture by 0.03%, be pressed into module, its 1d intensity compares to and does not add Z and can improve 70% after testing.
Embodiment 2.
Mix hydramine A: trolamine (60%W/W)+tripropanol amine (20%W/W)+three butanolamine (20%W/W); Mixing acid B: aluminium hydroxide (10%W/W)+silicic acid (10%W/W)+boric acid (80%); Feed ratio 5: 1.4,100 ℃ of temperature of reaction stirred 3 minutes, got intermediate product C.
Then, add mixed base D in above-mentioned product C, D is: potassium hydroxide (5%W/W)+calcium hydroxide (70%W/W)+magnesium hydroxide (25%W/W), feed ratio 64: 1.5,140 ℃ of temperature of reaction stirred 5 minutes, after the cooling, airing in the air is pulverized, and promptly gets product Z.
Z is mixed concrete and compound with other admixture by 0.03%, be pressed into module, its 1d intensity compares to and does not add Z and can improve 85% after testing.
Embodiment 3
Mix hydramine A: diethanolamine (5%W/W)+trolamine (90%W/W)+dipropanolamine (5%W/W); Mixing acid B: phosphoric acid (5%W/W)+boric acid (90%W/W)+sulfurous acid (5%W/W): feed ratio 5: 15,120 ℃ of temperature of reaction stirred 3 minutes, got intermediate product C.
Then, add mixed base D in above-mentioned product C, D is: calcium hydroxide (80%W/W)+magnesium hydroxide (20%W/W), and feed ratio is 65: 1, and temperature of reaction is 130 ℃, stirs 5 minutes, and after the cooling, airing in the air is pulverized, and promptly gets product Z.
Z is mixed concrete and compound with other admixture by 0.03%, be pressed into module, its 1d intensity compares to and does not add Z and can improve 95% after testing.
Claims (2)
- The synthetic reaction process of solid hydramine hardening accelerator carries out in two steps:1) A and B reaction generates intermediate product C by mass ratio 5: 1-3 feeds intake, and temperature of reaction 50-200 ℃, product is a clear crystal.Wherein: A is alcamine compounds such as diethanolamine, trolamine, dipropanolamine, tripropanol amine, diisopropanolamine (DIPA), tri-isopropanolamine, two butanolamines, three butanolamines; B is that acid compounds: C such as phosphoric acid, aluminium hydroxide, boric acid, silicic acid, sulfurous acid are slightly yellowy crystal, but deliquescence very easily.
- 2) above-mentioned reaction product C is generated final product Z by mass ratio 6-8 with D reaction again: 1-2 feeds intake, and temperature of reaction 100-200 ℃, product is for slightly yellowy jelly, and is nontoxic, and solidifiable after the cooling can be Powdered through grinding.Wherein: D is that bases compound: Z such as sodium oxide, sodium hydroxide, potassium oxide, potassium hydroxide, calcium oxide, calcium hydroxide, magnesium oxide, magnesium hydroxide are solid hydramine hardening accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98121522 CN1213656A (en) | 1998-10-10 | 1998-10-10 | Solid hydramine concrete early strength agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98121522 CN1213656A (en) | 1998-10-10 | 1998-10-10 | Solid hydramine concrete early strength agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1213656A true CN1213656A (en) | 1999-04-14 |
Family
ID=5227143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98121522 Pending CN1213656A (en) | 1998-10-10 | 1998-10-10 | Solid hydramine concrete early strength agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1213656A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329336C (en) * | 2005-09-06 | 2007-08-01 | 梅县五彩涂料厂 | Cement early strength agent and its prepn |
| CN100448792C (en) * | 2007-02-07 | 2009-01-07 | 北京欣和欣荣科技有限公司 | Building anti-freezing accelerator |
| CN101805143A (en) * | 2010-03-12 | 2010-08-18 | 同济大学 | Anti-interference anticracking agent for concrete and preparation method thereof |
| CN106045362A (en) * | 2016-06-02 | 2016-10-26 | 中山大学 | Alcohol amine early strength agents as well as preparation method and application thereof |
| CN108046641A (en) * | 2018-01-17 | 2018-05-18 | 石家庄学院 | A kind of compound concrete anti-corrosive rust inhibitor and preparation method |
-
1998
- 1998-10-10 CN CN 98121522 patent/CN1213656A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329336C (en) * | 2005-09-06 | 2007-08-01 | 梅县五彩涂料厂 | Cement early strength agent and its prepn |
| CN100448792C (en) * | 2007-02-07 | 2009-01-07 | 北京欣和欣荣科技有限公司 | Building anti-freezing accelerator |
| CN101805143A (en) * | 2010-03-12 | 2010-08-18 | 同济大学 | Anti-interference anticracking agent for concrete and preparation method thereof |
| CN106045362A (en) * | 2016-06-02 | 2016-10-26 | 中山大学 | Alcohol amine early strength agents as well as preparation method and application thereof |
| CN106045362B (en) * | 2016-06-02 | 2018-07-31 | 中山大学 | A kind of alcamines early strength agent and its preparation method and application |
| CN108046641A (en) * | 2018-01-17 | 2018-05-18 | 石家庄学院 | A kind of compound concrete anti-corrosive rust inhibitor and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107021728B (en) | A kind of inorganic cement base quick anchoring adhesive and preparation method thereof | |
| CN1213656A (en) | Solid hydramine concrete early strength agent | |
| CN112028522B (en) | Low-alkali liquid accelerator and preparation method thereof | |
| CN1134143A (en) | Grouting materials and their use | |
| CN111116154B (en) | Early-strength cement-based grouting material prepared from pre-hydrated fly ash and preparation method thereof | |
| CN106396449B (en) | A kind of sub-micron entringite and preparation method thereof and the application as early strength agent in cement-based material | |
| CN1451624A (en) | Industrial waste residue activating grinding aid | |
| CN114735961A (en) | Solid-liquid dual-purpose alkali-free accelerator and preparation method and application thereof | |
| CN102190986A (en) | Aqueous plastic floor adhesive | |
| US4461722A (en) | Method of solidifying waste materials, such as radioactive or toxic materials, contained in aqueous solutions | |
| CN101624299B (en) | Agricultural magnesium sulfate fertilizer, preparation method thereof and special mixing reactor thereof | |
| CN101665278A (en) | Compound phosphorus removal flocculating agent for water treatment | |
| CN1072401A (en) | The production and the goods of non-clay free of calcining and steam curing materials for wall | |
| CN101434464B (en) | Preparation of fly ash highly activator | |
| CN114015483B (en) | Ternary composite biodiesel pour point depressant and preparation and application thereof | |
| CN103524065A (en) | Special thickening time control agent for sulphate aluminum cement and application thereof | |
| CN1266081C (en) | Explosion-proof ammonium nitrate and production thereof | |
| CN109053053A (en) | A kind of polymer cement waterproof paint | |
| CN1244553C (en) | Preparing method for inactive nitric acid powder | |
| CN219024276U (en) | Bi-component dust suppressant gelling and preparing system | |
| CN1300035C (en) | Retardation method for pretreated bundle of alkali-activated-carbonate/slag gel grouting material | |
| CN219647335U (en) | Vehicle-mounted bi-component dust suppressant gelling and preparing system for sprinkler | |
| CN212167282U (en) | Rosin fat liquid homogeneity device | |
| CN117658510B (en) | Steel slag micropowder activity excitant based on high-temperature-chemical-mechanical coupling excitation and preparation method and application thereof | |
| CN111218731B (en) | Sol for preparing alumina fiber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 |