CN105621913A - High-iron phosphoaluminate cement - Google Patents
High-iron phosphoaluminate cement Download PDFInfo
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- CN105621913A CN105621913A CN201410666567.2A CN201410666567A CN105621913A CN 105621913 A CN105621913 A CN 105621913A CN 201410666567 A CN201410666567 A CN 201410666567A CN 105621913 A CN105621913 A CN 105621913A
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Abstract
The invention belongs to the technical field of a cement material, and especially relates to high-iron phosphoaluminate cement with high calcium aluminoferrite content. The high-iron phosphoaluminate cement comprises the following components in parts by mass: 15 parts of SiO2, 55 parts of impurity Al2O3, 20 parts of Fe2O3, 30 parts of CaO, 40 parts of P2O5, and 0.1 parts of impurity of Na2O and K2O. The high-iron phosphoaluminate cement has the advantages of low sintering temperature, low cost, better mechanical property, and better anti-erosion performance.
Description
Technical field
The invention belongs to the technical field of cement material, particularly to the high ferro phosphor aluminate cement of a kind of high calcium aluminoferrite content.
Background technology
Phosphor aluminate cement by raw material through dispensing, mixing, grinding, the preparation process such as burn till and obtain, its mineral composition is phosphorus calcium aluminate, calcium aluminate solid solution, calcium phosphate solid solution and segment glass body. The excellent mechanical properties such as phosphor aluminate cement has soon firmly, morning is strong, high-strength, cement slurry has excellent durability, excellent frost resistance, anti-carbonization, resist chemical, the abilities such as impervious and steel corrosion-resistance so that this cement has in salvaging, ocean engineering etc. and has been widely used and market prospect, it is possible to substitutes in some aspects and improves existing Binder Materials. But relatively costly due to raw material etc. so that the cost of this cement is much higher than Portland cement, limit the popularization and application of this cement. Wherein it is primarily present following reason: one is that manufacture of cement needs to consume a large amount of expensive bauxites; Two is the firing temperature higher (1370 DEG C ~ 1410 DEG C) of this cement; And this cement burns till and need to adopt composite mineralizer (MgO(1% ~ 7%), Fe2O3(1% ~ 8%)), in this composite mineralizer, expensive MgO occupies considerable proportion, further increases the cost of this cement.
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, it is an object of the invention to provide a kind of high ferro phosphor aluminate cement, this material firing temperature is low, and cost is low and has better mechanical property and erosion-resisting characteristics.
In order to solve above-mentioned technical problem and realize above-mentioned purpose, the present invention adopts the following technical scheme that:
A kind of high ferro phosphor aluminate cement, containing following components: SiO2, impurity A l2O3��Fe2O3��CaO��P2O5, impurity, mass fraction is SiO respectively215 parts, Al2O355 parts, Fe2O320 parts, CaO30 part, P2O540 parts, surplus 0.1 part is Na2O��K2O impurity.
The invention has the beneficial effects as follows have relatively low firing temperature than phosphor aluminate cement, cost is low and has better mechanical property and erosion-resisting characteristics.
Detailed description of the inventionBelow in conjunction with specific embodiment, technical scheme is further elaborated, but embodiments of the present invention are not limited to this.
A kind of high ferro phosphor aluminate cement, containing following components: SiO2, impurity A l2O3��Fe2O3��CaO��P2O5, impurity, mass fraction is SiO respectively215 parts, Al2O355 parts, Fe2O320 parts, CaO30 part, P2O540 parts, surplus 0.1 part is Na2O��K2O impurity.
Owing to phosphor aluminate cement hydrated product is mainly hydroxyapatite, aquation aluminophosphates gel and hydrated phosphate gel. Hydrated product can be cross-linked to form between simultaneous aquation aluminophosphates gel and hydrated phosphate gel the network structure of densification in length and breadth, improve the physical property of PALC, effectively stop the intrusion of extraneous ion. Therefore, the sulphate-corrosion resistance of phosphor aluminate cement relatively can have greater advantage by portland cement. The introducing of calcium aluminoferrite mineral makes this cement except having good anti-erosion and scour resistance. Meanwhile, research finds to form more than 20% when the content of calcium aluminoferrite accounts for grog, and this cement has the performance that some are special, and such as microdilatancy and rub resistance etc., this makes this cement be especially suited for use road, airfield rapid repair and ocean engineering etc.
Cement material of the present invention has relatively low firing temperature, and cost is low and has better mechanical property and erosion-resisting characteristics.
Claims (1)
1. a high ferro phosphor aluminate cement, it is characterised in that: containing following components: SiO2, impurity A l2O3��Fe2O3��CaO��P2O5, impurity, mass fraction is SiO respectively215 parts, Al2O355 parts, Fe2O320 parts, CaO30 part, P2O540 parts, surplus 0.1 part is Na2O��K2O impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666567.2A CN105621913A (en) | 2014-11-20 | 2014-11-20 | High-iron phosphoaluminate cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666567.2A CN105621913A (en) | 2014-11-20 | 2014-11-20 | High-iron phosphoaluminate cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105621913A true CN105621913A (en) | 2016-06-01 |
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ID=56037313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410666567.2A Pending CN105621913A (en) | 2014-11-20 | 2014-11-20 | High-iron phosphoaluminate cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105621913A (en) |
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2014
- 2014-11-20 CN CN201410666567.2A patent/CN105621913A/en active Pending
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
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| WD01 | Invention patent application deemed withdrawn after publication |