CN1015446B - Barium-containing sulfoaluminate cement - Google Patents
Barium-containing sulfoaluminate cementInfo
- Publication number
- CN1015446B CN1015446B CN 89100506 CN89100506A CN1015446B CN 1015446 B CN1015446 B CN 1015446B CN 89100506 CN89100506 CN 89100506 CN 89100506 A CN89100506 A CN 89100506A CN 1015446 B CN1015446 B CN 1015446B
- Authority
- CN
- China
- Prior art keywords
- cement
- aluminate
- barium
- silicate
- titanate
- 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.)
- Expired
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
- C04B7/00—Hydraulic cements
- C04B7/003—Barium or strontium cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to cement containing barium sulfo-aluminate. A novel gelling material compound containing barium sulfo-aluminate (xCaO. yBaO. 3Al2O3. SO3) is used as the main mineral of the cement, and in addition, the cement also contains a certain amount of silicate, aluminate and ferric aluminate. The cement of the present invention has the advantages of low burning temperature and favorable radiation resistance and corrosion resistance, has technological production process consistent with that of silicate cement, and is cement of early and high strength.
Description
The invention belongs to cement.
Two kinds of barium cement of the prior art, promptly be the barium silicate cement of essential mineral and be the barium aluminate cement of essential mineral with the barium aluminate with the barium silicate, these two kinds of barium cement firing temperature height (more than 1500 ℃), the barium silicate cement thermostability is bad, Ba(OH in the hydrated product)
2Solubleness is big, and Yi Rong loses, and it is because of Ba(OH after the aquation)
2Crystal becomes Ba(OH)
28H
2O makes the volume increase and causes cement stone cracking, and barium aluminate cement is because barium aluminate is water miscible, so can only be as a kind of air-setting material.
The present invention has overcome the shortcoming that exists in the prior art, is as the essential mineral of grog and the cement that designs with a kind of new titanate-containing sulpho-aluminate.The essential mineral titanate-containing sulpho-aluminate of cement of the present invention is a kind of hydraulicity gelationization compound.The early strength of cement and later strength are all very high, and three days intensity just can reach more than 80% of 28 days intensity, and ultimate compression strength can reach 90-100MPa in 28 days, and folding strength 12MPa is the stable hydraulic material of a kind of long-term behaviour.Cement of the present invention also contains a certain amount of silicate, for the sustainable growth of cement later strength provides assurance.Can be used for general civil engineering, rapid construction, the rush repair engineering, defence engineering, and in the production of assembly concrete prefabricated components.And, because cement of the present invention is than great, can gather materials with heavy (as barite) be mixed with the concrete of anti-gamma-ray or X ray, so it is again a kind of good radioprotective and erosion-resisting material of construction, can be used for the radioprotective engineering, for example: engineerings such as Nuclear power plants, nuclear waste disposal, anti-laboratory.Cement firing temperature of the present invention is low, is 1250-1350 ℃, and production process is simple, get final product with existing silicate cement production line, and cement raw material and existing cement raw material basically identical, barium sulfate is provided by natural barite, and cement cost is lower.
Main points of the present invention are that the molecular formula of this titanate-containing sulpho-aluminate is with the essential mineral of a kind of titanate-containing sulpho-aluminate as grog:
xCaO·yBaO·3Al
2O
3·SO
3
Wherein, x=0-3, y=1-4
Silicate comprises: silicic acid three barium 3BaOSiO
2, silicic acid two barium 2BaOSiO
2, tricalcium silicate 3CaOSiO
2, more than one in the Dicalcium Phosphate (Feed Grade).
Aluminate: CmBnAw is wherein: m=0-12, n=1-6, w=1-7.
Ferro-aluminate comprises: xCaOyBaOmAl
2O
3NFe
2O
3,
Wherein, x=0-4, y=0-4, m=1-2, n=1-2
The mineral composition of cement clinker of the present invention is by weight percentage:
Titanate-containing sulpho-aluminate: 40-80%
Silicate: 10-50%
Aluminate: 0-20%
Ferro-aluminate: 0-40%
CaO in the raw material, SiO
2, Al
2O
3, Fe
2O
3, SO
3And the content of BaO, be by weight percentage:
CaO： 10-37%
SiO
2： 3-14%
Al
2O
3： 9-26%
Fe
2O
3： 0-10%
SO
3： 3-7%
BaO： 6-45%
The titanate-containing sulpho-aluminate cement of the present invention's design is a kind of morning of strong a, high-strength cement, has good radioprotective, corrosion resistance simultaneously, and production process of the present invention is simple, cost is lower.
Embodiment:
Cement clinker burns till in the globars electric furnace, and firing temperature is 1300 ℃.
For above three kinds of grogs, the physicals of cement sees the following form:
For I, the II grog, its shielding property sees the following form:
It is to make the big test block of 4 * 14 * 16cm with clean slurry by marking thick water consumption that the anti-ray ability of grog is measured, after the demoulding in a day in water the maintenance fortnight, measure ray-proof protective value then.
Embodiment:
Raw material composition and composition of raw materials see the following form:
Oxide compound percentage composition (%) composition of raw materials in the raw material
Loss on ignition SiO
2Al
2O
3Fe
2O
3CaO MgO BaSO
4I II III
Wingdale 41.42 3.52 0.15 0.16 48.89 3.74/44.26 49.86 54.46
Iron powder 0.92 15.91 3.40 68.28 3.98 2.53/2.36 2.05 1.90
Alumina 13.82 10.63 66.34 2.49 1.87 0/19.62 29.76 23.71
Clay 4.60 68.60 14.88 5.00 1.66 1.76/0 3.45 7.69
Barite 00 0.20 0 1.39 0 96.76 19.67 14.88 12.23
Aluminum oxide 100/14.10 00
Cement clinker burns till in the globars electric furnace, and firing temperature is 1300 ℃.
For above three kinds of grogs, the physicals of cement sees the following form:
Folding strength time of coagulation (MPa) ultimate compression strength (MPa)
Proportion specific surface area mark is thick
(g/cm
3) (cm
2/ g) % initial set final set 28
(branch) (branch) one day three one day three everyday everyday
Ⅰ 3.059 3022 29.5 209 500 7.3 12.5 12.2 48.4 84.6 93.4
Ⅱ 3.113 2656 22.5 112 452 5.1 7.8 7.5 32.7 58.7 73.7
Ⅲ 3.149 2589 21.0 57 400 4.4 6.3 6.0 23.6 54.8 600
For I, the II grog, its shielding property sees the following form:
Ray protective value (mm) numbering I II 625 silicate
Cement clinker
x-ray 120KV 1.44 1.37 0.66
200KV 0.95 0.92 0.52
It is to make the big test block of 4 * 14 * 16cm with clean slurry by marking thick water consumption that the anti-ray ability of grog is measured, after the demoulding in a day in water the maintenance fortnight, measure ray-proof protective value then.
Claims (3)
1, a kind of titanate-containing sulpho-aluminate cement is characterized in that the mineral composition of cement clinker is by weight percentage
Titanate-containing sulpho-aluminate: 40-80%
Silicate: 10-50%
Aluminate: 0-20%
Ferro-aluminate: 0-40%
2, by the described titanate-containing sulpho-aluminate cement of claim 1, the molecular formula that it is characterized in that titanate-containing sulpho-aluminate is xCaOyBaO3Al
2O
3SO
3
Wherein, x=0-3, y=1-4.
3, by the described titanate-containing sulpho-aluminate cement of claim 1, it is characterized in that the composition in the raw material is by weight percentage:
CaO： 10-37%
SiO
2： 3-14%
Al
2O
3： 9-26%
Fe
2O
3： 0-10%
SO
3： 3-7%
BaO： 6-45%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100506 CN1015446B (en) | 1989-01-26 | 1989-01-26 | Barium-containing sulfoaluminate cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100506 CN1015446B (en) | 1989-01-26 | 1989-01-26 | Barium-containing sulfoaluminate cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035486A CN1035486A (en) | 1989-09-13 |
| CN1015446B true CN1015446B (en) | 1992-02-12 |
Family
ID=4853893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89100506 Expired CN1015446B (en) | 1989-01-26 | 1989-01-26 | Barium-containing sulfoaluminate cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015446B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039582C (en) * | 1994-11-30 | 1998-08-26 | 桦甸市松源水泥有限公司 | Process for producing, early strength expansive cement |
| CN104016606B (en) * | 2014-06-03 | 2016-06-08 | 青岛理工大学 | Concrete preservative |
| CN105084798B (en) * | 2015-08-04 | 2017-04-12 | 河海大学 | Concrete sulfate-corrosion-resistant additive and preparation method thereof |
| CN106278069A (en) * | 2016-08-26 | 2017-01-04 | 派丽(上海)管理有限公司 | A kind of resisting sea water erosion densification water-repellent paint |
| CN107572976A (en) * | 2017-08-15 | 2018-01-12 | 河北卓达建材研究院有限公司 | A kind of radiation proof function plate and preparation method thereof |
| CN109265031A (en) * | 2018-11-02 | 2019-01-25 | 济南大学 | A kind of baric white sulphoaluminate cement clinker and preparation method thereof |
| CN109748524B (en) * | 2019-03-22 | 2021-07-16 | 济南大学 | Negative-temperature-resistant anti-radiation boron-containing barium-rich sulphoaluminate cement clinker |
| CN110451836B (en) * | 2019-09-12 | 2021-06-22 | 洛阳理工学院 | Barium aluminate concrete expanding agent and preparation method thereof |
-
1989
- 1989-01-26 CN CN 89100506 patent/CN1015446B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035486A (en) | 1989-09-13 |
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| GR02 | Examined patent application | ||
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| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |