CN1110260A - Compound additive of special and general cements and its application method - Google Patents
Compound additive of special and general cements and its application method Download PDFInfo
- Publication number
- CN1110260A CN1110260A CN 94104173 CN94104173A CN1110260A CN 1110260 A CN1110260 A CN 1110260A CN 94104173 CN94104173 CN 94104173 CN 94104173 A CN94104173 A CN 94104173A CN 1110260 A CN1110260 A CN 1110260A
- Authority
- CN
- China
- Prior art keywords
- cement
- additive
- clinker
- special
- cement clinker
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to an additive for cement. After said additive is added in the cement, the cement has the good behaviours of accelerating setting, early-strength, high-strength and wear-resistance. Its composition (weight portion) is as follows: 5-20 portions of cement clinker, 1-9 portions of hemihydrate gypsum and 1-9 portions of dihydrate gypsum. According to the weight ratio of cement clinker: additive of 94%-85%:6%-15%, said additive is added in the cement mill in which the cement clinker is held to make grinding, so that the general cement and specific cement containing additive can be made up.
Description
The present invention relates to a kind of cement additire, a kind of cement that makes of more specifically saying so has short coagulating simultaneously concurrently, the cement additire of early strong, high-strength, wear-resisting effect.
Present cement short coagulate, early strong, be adding additive when finished cement uses, as α-Al
2O
3, Al
2(SO
4)
3Setting accelerator; CaCl
2Na
2SO
4Hardening accelerator etc., these additives have in following deficiency: 1. be to add when cement uses, trouble, bothersome is difficult to mix, and influences concrete quality etc.; 2. function singleness; 3. cost an arm and a leg.
The objective of the invention is to avoid above-mentioned the deficiencies in the prior art and provide a kind of have concurrently simultaneously make cement short coagulate, early strong, high-strength, wear-resisting, cheap, add cement after, cement quality is good, and can add special cement and the Portland cement additive and the application method of cement clinker in the cement manufacturing processed.
In order to achieve the above object, technical scheme of the present invention adopts following proportioning, makes cement additire.
Proportioning raw materials:
Title specification content (%) consumption (weight part) is best
Sulphoaluminate cement clinker 425
#Above anhydrous calcium sulphoaluminate 〉=50 5-20 8-15
Semi-hydrated gypsum industrial goods calcium sulphate hemihydrate 〉=80 1-9 2-7
Dihydrate gypsum industrial goods terra alba 〉=90 1-9 3-8
Make and methods for using them:
Mix by the above-mentioned raw materials proportioning, additive of the present invention.Bistrique adding grinding machine from cement mill grinds then, and the additive add-on is the 6-15% of cement, i.e. cement: additive=94%～85%: 6%～15%.
The present invention compared with prior art has following beneficial effect:
1. function is many, have simultaneously short coagulate, strong, high-strength, wear resisting property early; 2. can add additive at cement production process, thus can mix, technology is simple, cement quality good;
Concrete effect is as follows:
3. adjust the ratio of additive each component and the cement that the ratio in the cement admixture can be produced different performance thereof, adopt this additive, can improve cement mark, as produce same label cement, can mix blended material more, thereby, 30%～80% cement can be produced with the cement clinker of amount more.Simultaneously because the raising of output can reduce expense and cost.
Embodiment 1:
5kg sulphoaluminate cement clinker, 1kg semi-hydrated gypsum, 1kg dihydrate gypsum are mixed, be additive of the present invention.Get 7kg additive of the present invention.Get the 6kg additive and from the cement mill bistrique, add and be equipped with in the cement mill of 94kg portland cement clinker and blended material, grind, promptly obtain containing the cement of additive.
Annotate: be not special cement (road cement and high-test cement) as not adding blended material in the example 1, as follows.
Embodiment 2:
With the 20kg sulphoaluminate cement clinker, the 9kg semi-hydrated gypsum, the 9kg dihydrate gypsum mixes, promptly get additive of the present invention, get the 15kg additive from the bistrique of cement mill, add in the cement mill of the portland cement clinker that 85kg is housed, grind, promptly get the cement that contains additive.
Embodiment 3:
5kg sulphoaluminate cement clinker, 9kg semi-hydrated gypsum, 1kg dihydrate gypsum are mixed, promptly get additive of the present invention, get additive 10kg, additive adds the 90kg portland cement clinker, as the adding mode and the lapping mode of example 1, grind and promptly get the cement that contains additive.
Embodiment 4:
20kg sulphoaluminate cement clinker, 1kg semi-hydrated gypsum, 9kg dihydrate gypsum are mixed, promptly get additive of the present invention, get the 8kg additive and add the 92kg Portland clinker, grind, must contain the cement of additive as the adding mode and the lapping mode method of example 1.
Embodiment 5:
With the 5kg sulphoaluminate cement clinker, 2kg semi-hydrated gypsum, 3kg dihydrate gypsum mix, and promptly get additive of the present invention, get the 6kg additive, from the bistrique of cement mill, add in the cement mill that 94kg silicic acid grog and mixing material are housed and grind, promptly get the cement that contains additive.
Embodiment 6:
15kg sulphoaluminate cement clinker, 7kg semi-hydrated gypsum, 8kg dihydrate gypsum are mixed, promptly get additive of the present invention, get the 15kg additive, add the 85kg portland cement clinker, adding mode and lapping mode as example 1 grind, and promptly get the cement that contains additive.
Claims (3)
1, a kind of special cement and Portland cement composite additive, it is characterized in that: the proportioning of this additive is:
Title specification content (%) consumption (weight part)
Aluminosulfate cement 425
#Above anhydrous calcium sulphoaluminate 〉=50 5-20
Grog
Semi-hydrated gypsum industrial goods calcium sulfate 〉=80 1-9
Dihydrate gypsum industrial goods terra alba 〉=90 1-9
2, additive as claimed in claim 1 is characterized in that: the best proportioning of this additive is:
Title consumption (weight part)
Sulphoaluminate cement clinker 8-15
Semi-hydrated gypsum 2-7
Dihydrate gypsum 3-8
3, the application method of a kind of special cement and Portland cement composite additive is characterized in that:
1. this additive mixes the ratio of cement clinker and is:
Cement clinker: additive=94%～85%: 6%～15%
2. additive is in the cement clinker process of lapping, progressively adds the grinding machine from the bistrique of cement mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104173 CN1110260A (en) | 1994-04-15 | 1994-04-15 | Compound additive of special and general cements and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104173 CN1110260A (en) | 1994-04-15 | 1994-04-15 | Compound additive of special and general cements and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1110260A true CN1110260A (en) | 1995-10-18 |
Family
ID=5031460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94104173 Pending CN1110260A (en) | 1994-04-15 | 1994-04-15 | Compound additive of special and general cements and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1110260A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717209B (en) * | 2009-11-13 | 2012-09-19 | 南京工业大学 | Secondary synthesis method of calcium sulfoaluminate mineral in silicate cement clinker |
| CN102964076A (en) * | 2012-09-24 | 2013-03-13 | 北京工业大学 | Alkali and chloride-free enhancement type powder concrete setting accelerator |
| CN104761165A (en) * | 2015-03-23 | 2015-07-08 | 苏州市德莱尔建材科技有限公司 | Composite portland cement and preparation method thereof |
-
1994
- 1994-04-15 CN CN 94104173 patent/CN1110260A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717209B (en) * | 2009-11-13 | 2012-09-19 | 南京工业大学 | Secondary synthesis method of calcium sulfoaluminate mineral in silicate cement clinker |
| CN102964076A (en) * | 2012-09-24 | 2013-03-13 | 北京工业大学 | Alkali and chloride-free enhancement type powder concrete setting accelerator |
| CN102964076B (en) * | 2012-09-24 | 2014-06-11 | 北京工业大学 | Alkali and chloride-free enhancement type powder concrete setting accelerator |
| CN104761165A (en) * | 2015-03-23 | 2015-07-08 | 苏州市德莱尔建材科技有限公司 | Composite portland cement and preparation method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |