CN106477934A - A kind of accelerator for cement slurry and preparation method thereof - Google Patents
A kind of accelerator for cement slurry and preparation method thereof Download PDFInfo
- Publication number
- CN106477934A CN106477934A CN201610817121.4A CN201610817121A CN106477934A CN 106477934 A CN106477934 A CN 106477934A CN 201610817121 A CN201610817121 A CN 201610817121A CN 106477934 A CN106477934 A CN 106477934A
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- CN
- China
- Prior art keywords
- parts
- accelerator
- cement slurry
- flyash
- fluorite
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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
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of accelerator for cement slurry, raw material constitute according to following portion rate：30 51 parts of gangue, 25 38 parts of flyash, 16 27 parts of lime stone, 25 parts of fluorite, 0.5 0.7 parts of calcium sulfate, 0.4 0.6 parts of sodium metasilicate, 0.6 0.8 parts of calcium oxalate, 0.05 0.11 parts of triethanolamine, 0.2 0.6 parts of oxalic acid, 70 120 parts of water.Compared with tradition directly high-temperature calcination method, advance low-temperature hydrothermal synthesis is processed and can reduce later stage calcining heat this preparation method, can just be generated a large amount of products at lower calcining temperatures, be reached the effect of energy-conservation.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of accelerator for cement slurry and preparation method thereof.
Background technology
Coagulant is a kind of additive in building mortar, building concrete, also can be used as oil, natural gas extraction
Processing aid.It is particularly suitable for downcomer, the thermal insulation layer of cement products, cement prefab and cement road repairing etc. will be sought quickness
Rapid hardening is solid and accelerates mould using the project having enough to meet the need.The product has to cement products rapid hardening, promotees solidifying, early strong, good operation performance
The features such as, the setting rate of cement can be dramatically speeded up, is shortened setting time extra-high cement and requires in colliery scene work progress
Foam cement need to condense at short notice, curing molding produces certain compression strength, need to accelerate to send out using coagulant for this
The condensation process of soaked slurry liquid system.But, existing coagulant is easily affected by foaming agent in slurries, setting time
Unstable；And its using when heat release can cause that foam cement is unstable to be ruptured, it is impossible to while meeting scene to foam cement
High stability and the requirement of heat-proof quality.In addition, existing coagulant alkalinity is big, resource is consumed more.The early strength of product.
Content of the invention
For above-mentioned problems of the prior art, it is an object of the invention to provide a kind of accelerator for cement slurry and its system
Preparation Method.
A kind of accelerator for cement slurry, raw material constitute according to following portion rate：
Gangue 30-51 part, flyash 25-38 part, lime stone 16-27 part, fluorite 2-5 part, calcium sulfate 0.5-0.7 part, silicic acid
Sodium 0.4-0.6 part, calcium oxalate 0.6-0.8 part, triethanolamine 0.05-0.11 part, oxalic acid 0.2-0.6 part, water 70-120 part.
Further illustrate, a kind of described accelerator for cement slurry, raw material constitute according to following portion rate：
31 parts of gangue, 28 parts of flyash, 17 parts of lime stone, 4 parts of fluorite, 0.6 part of calcium sulfate, 0.5 part of sodium metasilicate, calcium oxalate
0.7 part, 0.09 part of triethanolamine, 0.5 part of oxalic acid, 80 parts of water.
Further illustrate, a kind of preparation method of described accelerator for cement slurry, comprise the steps：
(1) gangue, flyash, lime stone and fluorite are weighed in proportion, the spherical particle of a diameter of 9-11mm is ground to form, mixing
Uniformly；
(2) water, calcium sulfate, sodium metasilicate, calcium oxalate, triethanolamine, oxalic acid are added the mixture of gained in step (1), stirring
Mix, at 210-300 DEG C, 4.5-6.5 hour is processed using hydrothermal synthesis method under the conditions of 1atm and obtain prefinished products；
(3) prefinished products are calcined at 850-1000 DEG C 1.5-2.5 hour, the product that calcining is obtained is milled to specific surface area
For 500-700m2/kg.
Beneficial effects of the present invention are as follows：
By using hydrothermal synthesis method and the high-temperature calcination in later stage, the coagulant purity of preparation is high, and the coagulant is added mud
After system, the gypsum in coagulant and cement, moisture are reacted rapidly, generate substantial amounts of entringite, and a molecular product is combined
30 dimolecular water are simultaneously crystallized in the hole for lose water, and the high hyrate of these degree of crystallinity is interlaced, is formed harder
Skeleton, supports foam mud system, and the stability of enhanced foaming cement, the solidifying effect of rush are good；Coagulant preparing raw material is with bastard coal
Stone, flyash are realized twice laid, and the alkalinity of the coagulant for finally preparing are low as main raw material(s)；This preparation side
Compared with tradition directly high-temperature calcination method, advance low-temperature hydrothermal synthesis is processed and can reduce later stage calcining heat method, relatively
A large amount of products can just be generated under low calcining heat, reach the effect of energy-conservation.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment obtained under the premise of creative work is not made by field those of ordinary skill, belong to
The scope of protection of the invention.
Embodiment 1
A kind of accelerator for cement slurry, raw material constitute according to following portion rate：
30 parts of gangue, 25 parts of flyash, 16 parts of lime stone, 2 parts of fluorite, 0.5 part of calcium sulfate, 0.4 part of sodium metasilicate, calcium oxalate
0.6 part, 0.05 part of triethanolamine, 0.2 part of oxalic acid, 70 parts of water.
A kind of preparation method of described accelerator for cement slurry, comprises the steps：
(1) gangue, flyash, lime stone and fluorite are weighed in proportion, the spherical particle of a diameter of 9mm is ground to form, mixing is all
Even；
(2) water, calcium sulfate, sodium metasilicate, calcium oxalate, triethanolamine, oxalic acid are added the mixture of gained in step (1), stirring
Mix, at 210 DEG C, processed using hydrothermal synthesis method under the conditions of 1atm and obtain prefinished products in 4.5 hours；
(3) prefinished products are calcined 1.5 hours at 850 DEG C, the product that calcining is obtained is milled to specific surface area for 500m2/
kg.
Embodiment 2
A kind of accelerator for cement slurry, raw material constitute according to following portion rate：
51 parts of gangue, 38 parts of flyash, 27 parts of lime stone, 5 parts of fluorite, 0.7 part of calcium sulfate, 0.6 part of sodium metasilicate, calcium oxalate
0.8 part, 0.11 part of triethanolamine, 0.6 part of oxalic acid, 120 parts of water.
A kind of preparation method of described accelerator for cement slurry, comprises the steps：
(1) gangue, flyash, lime stone and fluorite are weighed in proportion, the spherical particle of a diameter of 11mm is ground to form, mixing is all
Even；
(2) water, calcium sulfate, sodium metasilicate, calcium oxalate, triethanolamine, oxalic acid are added the mixture of gained in step (1), stirring
Mix, at 300 DEG C, processed using hydrothermal synthesis method under the conditions of 1atm and obtain prefinished products in 6.5 hours；
(3) prefinished products are calcined 2.5 hours at 1000 DEG C, the product that calcining is obtained is milled to specific surface area for 700m2/
kg.
Embodiment 3
A kind of accelerator for cement slurry, raw material constitute according to following portion rate：
31 parts of gangue, 28 parts of flyash, 17 parts of lime stone, 4 parts of fluorite, 0.6 part of calcium sulfate, 0.5 part of sodium metasilicate, calcium oxalate
0.7 part, 0.09 part of triethanolamine, 0.5 part of oxalic acid, 80 parts of water.
A kind of preparation method of described accelerator for cement slurry, comprises the steps：
(1) gangue, flyash, lime stone and fluorite are weighed in proportion, the spherical particle of a diameter of 10mm is ground to form, mixing is all
Even；
(2) water, calcium sulfate, sodium metasilicate, calcium oxalate, triethanolamine, oxalic acid are added the mixture of gained in step (1), stirring
Mix, at 240 DEG C, processed using hydrothermal synthesis method under the conditions of 1atm and obtain prefinished products in 4.8 hours；
(3) prefinished products are calcined 1.9 hours at 880 DEG C, the product that calcining is obtained is milled to specific surface area for 650m2/
kg.
Embodiment 4
A kind of accelerator for cement slurry, raw material constitute according to following portion rate：
38 parts of gangue, 27 parts of flyash, 19 parts of lime stone, 4 parts of fluorite, 0.6 part of calcium sulfate, 0.5 part of sodium metasilicate, calcium oxalate
0.7 part, 0.08 part of triethanolamine, 0.5 part of oxalic acid, 80 parts of water.
A kind of preparation method of described accelerator for cement slurry, comprises the steps：
(1) gangue, flyash, lime stone and fluorite are weighed in proportion, the spherical particle of a diameter of 10mm is ground to form, mixing is all
Even；
(2) water, calcium sulfate, sodium metasilicate, calcium oxalate, triethanolamine, oxalic acid are added the mixture of gained in step (1), stirring
Mix, at 220 DEG C, processed using hydrothermal synthesis method under the conditions of 1atm and obtain prefinished products in 4.8 hours；
(3) prefinished products are calcined 1.8 hours at 890 DEG C, the product that calcining is obtained is milled to specific surface area for 590m2/
kg.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, other any Spirit Essences without departing from the present invention and the change that is made under principle, modification, replacement, combine, simplify,
Equivalent substitute mode is all should be, is included within protection scope of the present invention.
Claims (3)
1. a kind of accelerator for cement slurry, it is characterised in that raw material constitute according to following portion rate：
Gangue 30-51 part, flyash 25-38 part, lime stone 16-27 part, fluorite 2-5 part, calcium sulfate 0.5-0.7 part, silicic acid
Sodium 0.4-0.6 part, calcium oxalate 0.6-0.8 part, triethanolamine 0.05-0.11 part, oxalic acid 0.2-0.6 part, water 70-120 part.
2. a kind of accelerator for cement slurry according to claim 1, it is characterised in that raw material constitute according to following portion rate：
31 parts of gangue, 28 parts of flyash, 17 parts of lime stone, 4 parts of fluorite, 0.6 part of calcium sulfate, 0.5 part of sodium metasilicate, calcium oxalate
0.7 part, 0.09 part of triethanolamine, 0.5 part of oxalic acid, 80 parts of water.
3. the preparation method of a kind of accelerator for cement slurry according to claim 1, it is characterised in that comprise the steps：
(1) gangue, flyash, lime stone and fluorite are weighed in proportion, the spherical particle of a diameter of 9-11mm is ground to form, mixing
Uniformly；
(2) water, calcium sulfate, sodium metasilicate, calcium oxalate, triethanolamine, oxalic acid are added the mixture of gained in step (1), stirring
Mix, at 210-300 DEG C, 4.5-6.5 hour is processed using hydrothermal synthesis method under the conditions of 1atm and obtain prefinished products；
(3) prefinished products are calcined at 850-1000 DEG C 1.5-2.5 hour, the product that calcining is obtained is milled to specific surface area
For 500-700m2/kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817121.4A CN106477934A (en) | 2016-09-12 | 2016-09-12 | A kind of accelerator for cement slurry and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817121.4A CN106477934A (en) | 2016-09-12 | 2016-09-12 | A kind of accelerator for cement slurry and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106477934A true CN106477934A (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817121.4A Pending CN106477934A (en) | 2016-09-12 | 2016-09-12 | A kind of accelerator for cement slurry and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040040474A1 (en) * | 2002-08-29 | 2004-03-04 | Marianela Perez-Pena | Very fast setting cementitious composition |
| CN102001840A (en) * | 2010-12-10 | 2011-04-06 | 甘肃省建材科研设计院 | Powder composite cement grinding additive and preparation method thereof |
| CN103964721A (en) * | 2014-03-31 | 2014-08-06 | 中国矿业大学 | Foam cement coagulation accelerator for coal mines and preparation method of coagulation accelerator |
| CN104774600A (en) * | 2015-03-13 | 2015-07-15 | 中国石油集团渤海钻探工程有限公司 | Oil well cement low-temperature composite early-strong coagulation accelerator |
-
2016
- 2016-09-12 CN CN201610817121.4A patent/CN106477934A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040040474A1 (en) * | 2002-08-29 | 2004-03-04 | Marianela Perez-Pena | Very fast setting cementitious composition |
| CN102001840A (en) * | 2010-12-10 | 2011-04-06 | 甘肃省建材科研设计院 | Powder composite cement grinding additive and preparation method thereof |
| CN103964721A (en) * | 2014-03-31 | 2014-08-06 | 中国矿业大学 | Foam cement coagulation accelerator for coal mines and preparation method of coagulation accelerator |
| CN104774600A (en) * | 2015-03-13 | 2015-07-15 | 中国石油集团渤海钻探工程有限公司 | Oil well cement low-temperature composite early-strong coagulation accelerator |
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Application publication date: 20170308 |