CN1071154A - Waterproof magnesia cement - Google Patents
Waterproof magnesia cement Download PDFInfo
- Publication number
- CN1071154A CN1071154A CN 92109232 CN92109232A CN1071154A CN 1071154 A CN1071154 A CN 1071154A CN 92109232 CN92109232 CN 92109232 CN 92109232 A CN92109232 A CN 92109232A CN 1071154 A CN1071154 A CN 1071154A
- Authority
- CN
- China
- Prior art keywords
- acid
- magnesia cement
- water
- magnesium oxide
- sand
- 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
Links
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
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/105—Magnesium oxide or magnesium carbonate 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Landscapes
- 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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention relates to a kind of waterproof magnesia cement of high waterproof, its prescription and charging technology.This waterproof magnesia cement is by magnesium oxide, and acid, sand, unslaked lime or slaked lime are formed, and product resistance to compression, the water resisting property of utilizing this technology to make improve greatly.
Description
The invention belongs to novel magnesium system cement.
General magnesium cement is made up of magnesium oxide, magnesium chloride and water.The not anti-water of this gelling material soaked 1 year in water, and its intensity has only 16～23% of green strength, can not porcelain or glazing.Having proposed to add phosphoric acid salt in the magnesium cement composition at CN87107780A is the water resisting property additive of main body, this anti-water test result shows, test block is immersed in that the intensity after six months increases about 11% than 28 days ultimate compression strength of maintenance in the air in the water, water resisting property improves, but the amplitude that improves is little.
The purpose of this invention is to provide a kind of intensity height, the novel magnesium cement that water resisting property is good.
Novel magnesium cement of the present invention is made up of magnesium oxide, acid, sand, lime, and its proportioning is: 100 parts in magnesium oxide, 50～65 parts of acid, (60 parts in sand 130, unslaked lime slaked lime 25-40 part, acid of the present invention is generally hydrochloric acid, sulfuric acid, phosphoric acid, and best acid is sulfuric acid.
The charging technology of this waterproof magnesia cement is: take by weighing a certain amount of magnesium oxide and pour container into, add the acid prepare, stir fast, add sand and fully stir, add unslaked lime again or slaked lime is adjusted setting time.
Describe the present invention below in conjunction with embodiment.
The present embodiment raw material consists of: 1000 gram magnesium oxide, 55 gram sulfuric acid, 1450 sand, 30 gram slaked limes.In container, add 1000 gram magnesium oxide, sulphuric acid soln 55 grams that prepare are in advance poured in this container, stir fast, add 1450 gram sand, stir, and then add 30 gram slaked limes fast, irritate the mold forming demoulding in 3-5 hour, natural curing 28 days after stirring.
Acid in the present embodiment also can be used 30% hydrochloric acid instead, 20% phosphoric acid, and charging technology is identical.
The container that utilizes charging technology of the present invention to make polishes, and porcelain or glazing are after survey can reach following index.
1, in 100 ℃ of boiling water, do not have and burst the foaming phenomenon.
2, can bear height 2 meter 270 gram steel ball and 30kg sand pocket freely falling body and impact, nothing is fallen to throw off restraint and is damaged.
3, can bear the weight 72 hours of load 500kg, become the 2000kg weight then and continue 2 hours flawlesses and seepage phenomenon.
4, the corrosion of ability 3% hydrochloric acid and 3% sodium hydroxide solution.
5, filling with under the situation of water, answer flawless, seepage shape is a phenomenon.
Claims (5)
1, a kind of water-resistant magnesia cement of being made up of magnesium oxide, sand etc. is characterized in that also being added with acid, unslaked lime, slaked lime and proportioning raw materials and is in raw material: 100 parts in magnesium oxide, 50～60 parts of acid, sand 130-160 part, 25～40 parts of unslaked lime or slaked limes.
2, water-resistant magnesia cement according to claim 1 is characterized in that added acid is 30% hydrochloric acid.
3, water-resistant magnesia cement according to claim 1 is characterized in that added acid is 10% sulfuric acid.
4, water-resistant magnesia cement according to claim 1 is characterized in that added acid is 20% phosphoric acid.
5, a kind of charging technology of waterproof magnesia cement as claimed in claim 1 is poured in the container for taking by weighing a certain amount of magnesium oxide, adds sand again, fully stirs, and adds unslaked lime or slaked lime again and stirs and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109232 CN1071154A (en) | 1992-08-12 | 1992-08-12 | Waterproof magnesia cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109232 CN1071154A (en) | 1992-08-12 | 1992-08-12 | Waterproof magnesia cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1071154A true CN1071154A (en) | 1993-04-21 |
Family
ID=4944035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92109232 Pending CN1071154A (en) | 1992-08-12 | 1992-08-12 | Waterproof magnesia cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1071154A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997020784A1 (en) * | 1995-12-05 | 1997-06-12 | Periclase Pty. Ltd. | A settable composition and uses therefor |
| CN105985034A (en) * | 2015-03-11 | 2016-10-05 | 美程新材料科技江苏有限公司 | Inorganic cementing material prepared from waste acid |
| CN106554160A (en) * | 2016-11-10 | 2017-04-05 | 沈阳化工大学 | A kind of method that utilization Waste Sulfuric Acid directly prepares rapid hardening magnesium oxysulfide concrete |
-
1992
- 1992-08-12 CN CN 92109232 patent/CN1071154A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997020784A1 (en) * | 1995-12-05 | 1997-06-12 | Periclase Pty. Ltd. | A settable composition and uses therefor |
| CN105985034A (en) * | 2015-03-11 | 2016-10-05 | 美程新材料科技江苏有限公司 | Inorganic cementing material prepared from waste acid |
| CN106554160A (en) * | 2016-11-10 | 2017-04-05 | 沈阳化工大学 | A kind of method that utilization Waste Sulfuric Acid directly prepares rapid hardening magnesium oxysulfide concrete |
| CN106554160B (en) * | 2016-11-10 | 2019-07-05 | 沈阳化工大学 | A method of directly preparing rapid hardening magnesium oxysulfide concrete using Waste Sulfuric Acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |