CN107986649A - Solidifying hydraulic cement and its preparation method and application soon - Google Patents
Solidifying hydraulic cement and its preparation method and application soon Download PDFInfo
- Publication number
- CN107986649A CN107986649A CN201711461446.4A CN201711461446A CN107986649A CN 107986649 A CN107986649 A CN 107986649A CN 201711461446 A CN201711461446 A CN 201711461446A CN 107986649 A CN107986649 A CN 107986649A
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- Prior art keywords
- hydraulic cement
- solidifying
- raw material
- soon
- preparation
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Classifications
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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
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
Abstract
The invention discloses a kind of hydraulic cement solidifying soon and its preparation method and application, this coagulates hydraulic cement and is made of following percentage raw material soon：Al2O356~62%, CaO 37~43%, SiO20.01~0.5%, Fe2O30.01~0.5%.The preparation method of the fast solidifying hydraulic cement concretely comprises the following steps：（1）It is raw material to being uniformly mixed by the raw material high-speed stirred of each proportioning；（2）The raw material are slowly launched in electric arc furnaces, are warming up to 1600 DEG C；（3）Injection pressure-air quickly cools down, and obtains clinker；（4）By the chamotte crushing；（5）Fine powder is sorted to obtain,.The application of the hydraulic cement in building materials solidifying soon.The hydraulic cement cost solidifying soon of the present invention is low, and process is simple, simple operation, when gravity-flow ventilation, outer circulation water connect bag, high-pressure blast injection cooling can rapid condensation, solve the problems, such as that concreting in cold weather is difficult.
Description
Technical field
The present invention relates to building material technical field, and in particular to a kind of to coagulate hydraulic cement and preparation method thereof soon and answer
With.
Background technology
The intensity of concrete is by the hydration reaction between cement and water, and then generation glue compound bonding reinforcing bar and sand
Stone.The most basic requirement of hydration reaction is that have water and suitable temperature, and the speed of aquation declines as temperature declines, when
When water is less than 0 DEG C, water starts to expand, and certain infringement can be caused to concrete structure, when temperature continues to decline, in concrete
Moisture started transformation of the liquid phase to solid phase, can participate in cement aquation moisture it is opposite tail off, the aquation in cement
Effect reduces, and the gain in strength degree of cement also accordingly reduces, if temperature continues to develop to low temperature direction, can mix commodity
Moisture in solidifying soil is fully converted to ice, and hydration tends to stop, and the intensity of cement would not also increase.
For traditional pure calcium aluminate cement in the winter time in use, since temperature is very low, hydration reaction is slow, causes demoulding time
Length and intensity performance are slow etc., cause many cement, the problem that steel industry can not construct in the winter time.
To solve problem above, before construction starts, windbreak is set up in foundation pit or foundation trench, generally using steel pipe scaffold
Set up with tarpaulin；During winter construction, concrete is using accumulation of heat and admixes additive, the method maintenance that top covers, and sets up at the same time
Windbreak is gone along with sb. to guard him, then covering covers blanket and straw bag moisturizing, while it is noted that enclose using one strata vinyl chloride film moisturizing of paving
Protect tight, stuffy, and bind firm.In addition, cement will be transported into brooder storage, component materials of concrete heating-up temperature before
Want the final temperature of concrete batching system as needed to calculate to determine, and control within 35 DEG C.
Above method ensure that the quality of cement winter construction, but of high cost, complex procedures, cumbersome.
Therefore, it is low, simple and convenient there is an urgent need to a kind of cost, it can quickly solidify the cement of simultaneously proof strength.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of hydraulic cement solidifying soon and its preparation method and application.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of hydraulic cement solidifying soon is designed, is made of following percentage raw material：Al2O356~62%, CaO 37~43%, SiO2
0.01~0.5%, Fe2O30.01~0.5%.
The preparation method for the fast solidifying hydraulic cement stated, comprises the following steps that：
（1）The raw material high-speed stirred that will respectively be matched in claim 1, is raw material to being uniformly mixed；
（2）The raw material are slowly launched in electric arc furnaces, are warming up to 1600 DEG C；
（3）Injection pressure-air quickly cools down, and obtains clinker；
（4）By the chamotte crushing；
（5）Fine powder is sorted to obtain,.
Preferably, in step（2）In, the voltage that when heating uses is 120V, and electric current is 4000~4500A.
Preferably, in step（3）In, the pressure of the pressure-air is 0.3~0.5Mpa.
Preferably, in step（4）In, the broken granular size is less than 2mm.
Preferably, in step（5）In, the specific surface area of the fine powder is 4500~5500cm/g2。
The application of the hydraulic cement in building materials solidifying soon.
Compared with prior art, advantageous effects of the invention are：
1. the hydraulic cement solidifying soon of the present invention can be quick when gravity-flow ventilation, outer circulation water connect bag, high-pressure blast injection cooling
Condense, solve the problems, such as that concreting in cold weather is difficult.
2. adjustment of the hydraulic cement by aluminium-calcium-rate example solidifying soon of the present invention, forms the C12A7 things with rapid condensation
Phase.
3. the cooling velocity experiment of the present invention in several ways, have studied influences fast the final of solidifying hydraulic cement, really
The optimal type of cooling and the mode of production are determined.
4. the hydraulic cement melt temperature solidifying soon of the present invention has good stability at elevated temperature, it should at 1600 degree
It is quite varied with field.
5. the hydraulic cement cost solidifying soon of the present invention is low, process is simple, simple operation.
Embodiment
Illustrate the embodiment of the present invention with reference to embodiment, but following embodiments are used only to describe in detail
The present invention, does not limit the scope of the invention in any way.
Embodiment 1：A kind of hydraulic cement solidifying soon
Solidifying hydraulic cement in percentage, is made of following raw material soon for this：Al2O356%, CaO 43%, SiO20.5%, Fe2O3
0.5%。
Embodiment 2：A kind of hydraulic cement solidifying soon
Solidifying hydraulic cement in percentage, is made of following raw material soon for this：Al2O362%, CaO 37%, SiO20.5%, Fe2O3
0.5%。
Embodiment 3：A kind of hydraulic cement solidifying soon
Solidifying hydraulic cement in percentage, is made of following raw material soon for this：Al2O358%, CaO 41.49%, SiO20.01%,
Fe2O3 0.5%。
Embodiment 4：A kind of hydraulic cement solidifying soon
Solidifying hydraulic cement in percentage, is made of following raw material soon for this：Al2O360.49%, CaO 39%, SiO20.5%,
Fe2O3 0.01%。
Embodiment 5：Electric smelting method prepares solidifying hydraulic cement soon
Produced using electric smelting method, detailed production technology is as follows：
（1）The raw material respectively matched in embodiment 1 is put into homogenizer, 3000 turns of speed is not less than with rotating speed per minute
20min is mixed, is raw material until being uniformly mixed；
（2）The raw material mixed are slowly launched in electric arc furnaces, with 120V voltages, 4000~4500A electric currents, reach its temperature
To after 1600 DEG C, slowly melt raw material；
（3）Jetting pressure is that the pressure-air of 0.3~0.5Mpa quickly cools down, and obtains the clinker with amorphous state；
（4）Clinker after cooling is combined in jaw crusher and twin rollers and is crushed to granular size in below 2mm, then with connect
Continuous formula ball mill grinding and grader sort to obtain 4500~5500cm/g of specific surface area2The fine powder of left and right, to obtain the final product.
Embodiment 6：The detection of the fast solidifying hydraulic cement type of cooling and the mode of production
Setting time test method：
Test specimen conserves extremely plus is carried out after water during 30min first time measure in moisture curing box.During measure, from moisture curing box
Take out die trial to be placed under test point, reduce test point and contacted with cement paste surface.After tightening screw 1s~2s, loosen suddenly, test point
Vertically freely sink to cement paste.Observe total indicator reading when test point stops discharging test point 30s after sinking.Close on the presetting period
At interval of 5min measure once, pre-hardening state is reached when test point is sink to away from bottom plate 4mm ± 1mm for cement.Presetting period measures
Die trial is overturn into 180 degree under glass plate in a translational manner together with slurry immediately after complete.Curing box is put into continue to conserve.Close on end
When solidifying every 15min measure once, when test point sinks to 0.5mm, i.e., annular attachment start cannot when leaving a trace on test specimen,
Reach final set state for cement.
Tested using the cooling velocity of various ways, study hydraulic cement setting time influence solidifying soon made on embodiment 5,
To determine the optimal type of cooling and the mode of production.
Testing result is as shown in table 1：
Watch 1 coagulates the detection of the hydraulic cement type of cooling and the mode of production soon
Testing result shows that the Very good cooling mode of fast solidifying hydraulic cement cools down for high pressure blow smelting operation, and the optimal mode of production is particle
Shape.
Embodiment 7：Solidifying hydraulic cement thing mutually detects soon
Using X-ray diffraction thing phase, the percentage for adjusting aluminium-calcium-rate example to foring the C12A7 thing phases with rapid condensation is detected
Content and the influence of setting time.
Amorphous state C12A7 is disorderly and unsystematic since its internal particle is in No- L aw Order, without certain geometric shape, institute
With with higher, metastable state chemical energy, there is faster hydration rate.The condensation that a small amount of presence can speed up cement is hard
Change.
Setting time test method is the same as embodiment 6.
Testing result is as shown in table 2：
Watch 2 coagulates hydraulic cement thing and mutually detects soon
Testing result shows that the raw material of fast solidifying hydraulic cement is Al2O358%, CaO 41.49%, SiO20.01%, Fe2O3
When 0.5%, C12A7 phase content highests, setting time is most short.
The present invention is described in detail above in conjunction with embodiment, still, person of ordinary skill in the field can
Understand, can also be to each design parameter make a change in above-described embodiment, shape on the premise of present inventive concept is not departed from
Into multiple specific embodiments, it is common excursion of the invention, is no longer described in detail one by one herein.
Claims (7)
1. a kind of hydraulic cement solidifying soon, it is characterised in that be made of following percentage raw material：Al2O356~62%, CaO 37~
43%, SiO20.01~0.5%, Fe2O30.01~0.5%.
2. the preparation method of the fast solidifying hydraulic cement described in claim 1, it is characterised in that comprise the following steps that：
（1）The raw material high-speed stirred that will respectively be matched in claim 1, is raw material to being uniformly mixed；
（2）The raw material are slowly launched in electric arc furnaces, are warming up to 1600 DEG C；
（3）Injection pressure-air quickly cools down, and obtains clinker；
（4）By the chamotte crushing；
（5）Fine powder is sorted to obtain,.
3. the preparation method of fast solidifying hydraulic cement according to claim 2, it is characterised in that in step（2）In, the liter
The voltage used when warm is 120V, and electric current is 4000~4500A.
4. the preparation method of fast solidifying hydraulic cement according to claim 2, it is characterised in that in step（3）In, the height
The pressure for pressing air is 0.3~0.5Mpa.
5. the preparation method of fast solidifying hydraulic cement according to claim 2, it is characterised in that in step（4）In, it is described broken
Broken granular size is less than 2mm.
6. the preparation method of fast solidifying hydraulic cement according to claim 2, it is characterised in that in step（5）In, it is described thin
The specific surface area of powder is 4500~5500cm/g2。
7. application of the hydraulic cement in building materials solidifying soon described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711461446.4A CN107986649B (en) | 2017-12-28 | 2017-12-28 | Quick setting hard cement and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711461446.4A CN107986649B (en) | 2017-12-28 | 2017-12-28 | Quick setting hard cement and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107986649A true CN107986649A (en) | 2018-05-04 |
| CN107986649B CN107986649B (en) | 2020-08-14 |
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ID=62041586
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711461446.4A Active CN107986649B (en) | 2017-12-28 | 2017-12-28 | Quick setting hard cement and preparation method and application thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1982247A (en) * | 2005-12-16 | 2007-06-20 | 郑州登峰熔料有限公司 | Calcium aluminate cement |
| WO2017009581A1 (en) * | 2015-07-15 | 2017-01-19 | Kerneos | Process for manufacturing calcium aluminates |
-
2017
- 2017-12-28 CN CN201711461446.4A patent/CN107986649B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1982247A (en) * | 2005-12-16 | 2007-06-20 | 郑州登峰熔料有限公司 | Calcium aluminate cement |
| WO2017009581A1 (en) * | 2015-07-15 | 2017-01-19 | Kerneos | Process for manufacturing calcium aluminates |
Non-Patent Citations (2)
| Title |
|---|
| 姚燕: "《水泥与混凝土研究进展》", 31 October 2016, 中国建材工业出版社 * |
| 张宇震: "《中国硅酸盐水泥生产与应用》", 31 January 2014, 中国建材工业出版社 * |
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| CN107986649B (en) | 2020-08-14 |
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