CN104496532A - Foamed magnesium phosphate cement material - Google Patents
Foamed magnesium phosphate cement material Download PDFInfo
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- CN104496532A CN104496532A CN201410771626.2A CN201410771626A CN104496532A CN 104496532 A CN104496532 A CN 104496532A CN 201410771626 A CN201410771626 A CN 201410771626A CN 104496532 A CN104496532 A CN 104496532A
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- magnesium phosphate
- phosphate cement
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Abstract
The invention relates to a foamed magnesium phosphate cement material, belonging to the technical field of building materials. Many domestic scholars do detailed study on properties of magnesium phosphate cement at present, but do less study on preparation of the foamed magnesium phosphate cement from magnesium phosphate cement. The invention provides a foamed magnesium phosphate cement material. The foamed magnesium phosphate is characterized in that carbonate or bicarbonate is added into the magnesium phosphate cement, and potassium dihydrogen phosphate in the magnesium phosphate cement raw material reacts with the carbonate or bicarbonate to generate carbon dioxide gas, thereby obtaining the foamed magnesium phosphate cement. The foamed magnesium phosphate cement material has the advantages of simple and controllable foaming process, low cost, high application flexibility and the like, and has favorable popularization and application prospects.
Description
Technical field
The invention belongs to New Building Materials technical field, foam especially by chemical process, obtain the magnesium phosphate cement that foams.The present invention proposes and add a kind of chemical reagent in magnesium phosphate cement, in magnesium phosphate cement setting and harden process, utilize the sour environment of itself, make supercarbonate or carbonate reaction generate a large amount of gas, thus obtain the magnesium phosphate cement that foams.This method successful, applying flexible.
Background technology
Magnesium phosphate cement is a kind of at room temperature by novel gelled material that chemical reaction is formed.Compared with conventional cement, it is simple to operation, speed of response is fast, and final hydrated product has the good characteristic of ceramic, there is good mechanical property, simultaneously magnesium phosphate cement can the cementing various trade waste in large dosage ground as flyash, slag etc., be therefore a kind of novel green material having very much researching value, energy-conserving and environment-protective.Therefore magnesium phosphate cement is extensively studied by Chinese scholars as fast repairing material.Early 1990s starts, China is to hydration mechanism, the improving SNR of MPC and done certain research and exploitation as patching material application etc., in recent years achieve more achievement, but current relevant magnesium phosphate cement is raw-material preferably little compared with the aspect such as the use field (binding agent as artificial board) of quality control, material property and the dependency of optimum mix proportion, the influence factor of weather resistance and ameliorative way, mechanicals.For being made by magnesium phosphate cement, foaming magnesium phosphate cement is then few.
Present method proposes in magnesium phosphate cement, add a kind of chemical reagent, in magnesium phosphate cement setting and harden process, utilizes the sour environment of itself, makes supercarbonate or carbonate reaction generate a large amount of gas, thus obtains the magnesium phosphate cement that foams.Foaming process easily controls, and whipping agent does not affect for magnesium phosphate cement performance.For magnesium phosphate cement is significant for fields such as heat insulatings from now on.
Summary of the invention
Foaming magnesium phosphate cement material, is characterized in that: the foaming each component of magnesium phosphate cement material and massfraction thereof are: 20-40% magnesite clinker, 30-50% potassium primary phosphate, 0-48% flyash, 0-5% retardant, 2-5% whipping agent.
Further, magnesite clinker is characterized as: more than 1600 DEG C burnt magnesite clinkers, and its content of MgO is not less than 95%; Potassium primary phosphate is characterized as: the potassium primary phosphate of Industrial products rank, and purity is calculated in mass percent and is not less than 98%;
Further, retardant is the borax of Industrial products rank, and purity is calculated in mass percent and is not less than 98%;
Further, whipping agent is soluble carbon acid hydrogen salt or the carbonate of Industrial products rank, and purity is calculated in mass percent and is not less than 98%;
The concrete steps preparing magnesium phosphate cement based composites are:
By first to magnesite clinker, borax, flyash, supercarbonate or carbonate mix and blend 60s, then pour potassium primary phosphate into, stir 30s, then water is added in the material mixed, stir 60s afterwards, obtain foaming magnesium phosphate cement slurry, pour in mould afterwards and foam.
Embodiment
One, the starting material used and construction situation
1. the proportioning of foaming trimagnesium phosphate material
2. construction is: by first to magnesite clinker, borax, flyash, supercarbonate or carbonate mix and blend 60s, then potassium primary phosphate is poured into, stir 30s, then water is added in the material mixed, stir 60s afterwards, obtain foaming magnesium phosphate cement slurry, pour in mould afterwards and foam.
3. implementation result wire examination method: method preparation foaming magnesium phosphate cement test specimen (being of a size of 100mm × 100mm × 100mm) proposed with the present invention, tests its density and ultimate compression strength after maintenance 28d in atmosphere.
Two, concrete result of implementation
Claims (5)
1. foam magnesium phosphate cement material, it is characterized in that: each component and massfraction thereof are: 20-40% magnesite clinker, 30-50% potassium primary phosphate, 0-48% flyash, 0-5% retardant, 2-5% whipping agent.
2. foaming magnesium phosphate cement material according to claim 1, is characterized in that: magnesite clinker is characterized as: more than 1600 DEG C burnt magnesite clinkers, and its content of MgO is not less than 95%; Potassium primary phosphate is characterized as: the potassium primary phosphate of Industrial products rank, and purity is calculated in mass percent and is not less than 98%.
3. foaming magnesium phosphate cement material according to claim 1, is characterized in that: retardant is the borax of Industrial products rank, and purity is calculated in mass percent and is not less than 98%.
4. foaming magnesium phosphate cement material according to claim 1, is characterized in that: whipping agent is soluble carbon acid hydrogen salt or the carbonate of Industrial products rank, and purity is calculated in mass percent and is not less than 98%.
5. prepare the magnesium phosphate cement material that foams as claimed in claim 1, it is characterized in that, concrete steps are:
By first to magnesite clinker, borax, flyash, supercarbonate or carbonate mix and blend 60s, then pour potassium primary phosphate into, stir 30s, then water is added in the material mixed, stir 60s afterwards, obtain foaming magnesium phosphate cement slurry, pour in mould afterwards and foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410771626.2A CN104496532B (en) | 2014-12-14 | 2014-12-14 | Foamed magnesium phosphate cement material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410771626.2A CN104496532B (en) | 2014-12-14 | 2014-12-14 | Foamed magnesium phosphate cement material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104496532A true CN104496532A (en) | 2015-04-08 |
| CN104496532B CN104496532B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410771626.2A Active CN104496532B (en) | 2014-12-14 | 2014-12-14 | Foamed magnesium phosphate cement material |
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| CN (1) | CN104496532B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105294048A (en) * | 2015-06-04 | 2016-02-03 | 盐城工学院 | Two-stage stirring process of magnesium phosphate cement-based material |
| CN106830875A (en) * | 2017-03-16 | 2017-06-13 | 中国科学院青海盐湖研究所 | A kind of magnesium phosphate cement foam concrete fixes the sand plate and preparation method thereof |
| CN106927781A (en) * | 2017-04-28 | 2017-07-07 | 重庆大学 | One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof |
| CN109574619A (en) * | 2018-11-29 | 2019-04-05 | 中建西部建设股份有限公司 | A kind of preparation method of magnesium phosphate foamed cement |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103420654A (en) * | 2013-01-15 | 2013-12-04 | 北京太空板业股份有限公司 | Material used for manufacturing foam cement, method for preparing foam cement from same, and foam cement |
| CN103922801A (en) * | 2014-03-17 | 2014-07-16 | 北京工业大学 | Method for increasing durability of magnesium phosphate cement |
-
2014
- 2014-12-14 CN CN201410771626.2A patent/CN104496532B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103420654A (en) * | 2013-01-15 | 2013-12-04 | 北京太空板业股份有限公司 | Material used for manufacturing foam cement, method for preparing foam cement from same, and foam cement |
| CN103922801A (en) * | 2014-03-17 | 2014-07-16 | 北京工业大学 | Method for increasing durability of magnesium phosphate cement |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105294048A (en) * | 2015-06-04 | 2016-02-03 | 盐城工学院 | Two-stage stirring process of magnesium phosphate cement-based material |
| CN105294048B (en) * | 2015-06-04 | 2017-07-04 | 盐城工学院 | The two benches stirring technique of magnesium phosphate cement sill |
| CN106830875A (en) * | 2017-03-16 | 2017-06-13 | 中国科学院青海盐湖研究所 | A kind of magnesium phosphate cement foam concrete fixes the sand plate and preparation method thereof |
| CN106927781A (en) * | 2017-04-28 | 2017-07-07 | 重庆大学 | One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof |
| CN109574619A (en) * | 2018-11-29 | 2019-04-05 | 中建西部建设股份有限公司 | A kind of preparation method of magnesium phosphate foamed cement |
| CN109574619B (en) * | 2018-11-29 | 2021-04-02 | 中建西部建设股份有限公司 | Preparation method of magnesium phosphate foamed cement |
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| Publication number | Publication date |
|---|---|
| CN104496532B (en) | 2017-05-17 |
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