CN1096279A - A kind of magnesia cement and preparation technology thereof - Google Patents
A kind of magnesia cement and preparation technology thereof Download PDFInfo
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- CN1096279A CN1096279A CN94110541A CN94110541A CN1096279A CN 1096279 A CN1096279 A CN 1096279A CN 94110541 A CN94110541 A CN 94110541A CN 94110541 A CN94110541 A CN 94110541A CN 1096279 A CN1096279 A CN 1096279A
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- magnesia
- magnesite
- cement
- additive
- wollastonite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a kind of magnesia cement and preparation technology thereof; The characteristics of this technology are with magnesite calcination ripe material, make the modification magnesia through abrasive dust, heating homogenizing and storage and aging, sneak into then and be mixed into additive by gypsum, kaolin, wollastonite, alunite, talcum, flyash, sawdust, gold mine, magnesite tailings mud etc. and make modified magnesite cement.The blending ratio of magnesia and additive is 100: 1-75.By magnesia cement of the present invention compare with prior art have the intensity height, do not whiten, nonhygroscopic, do not chap, advantage such as corrosion-resistant, heat-resisting, easy to use, have good use promotional value.
Description
The present invention relates to a kind of material of construction, specifically a kind of magnesia cement and preparation technology thereof.
Magnesia cement also claims Suo Lieer (Sorel) cement, its goods have the heat conductivity effect, good heat insulating, resistance to abrasion is good, the bonding various types of organic or inorganic slurries of energy, early strength height, has elasticity, in light weight, many advantages such as erosion of oil resistant, lubricating oil and paint are widely used in industry, building decorating industry and family.But the disadvantage of this cement products is an easily whiting and decolouring of surface, easy damp suction surface halide accumulation, and the surface sweating of goods, water resisting property is poor, and life-time service also can produce strain cracking, has had a strong impact on the use properties of magnesia cement goods.In order to overcome above-mentioned deficiency, the scientific research personnel has carried out a large amount of tests, improvement both at home and abroad.Organosilicon oils additives such as two fluosite have been proposed to add in the magnesium cement component between benzene as 503830 and No. 767052 patents of the Soviet Union; No. 4003752 patents of the U.S. substitute magnesium chloride solution with Adlerika; China 1054238A patent, 1055726A patent and 87103530A patent have proposed respectively with phosphoric acid or calcium superphosphate resisting whiting and decolouring, solve damp suction surface halide accumulation with waterproofing agent of organosilicon, first sodium silanolate (potassium) etc.; Also have to propose magnesia cement to be carried out modification with silicon ash, slag, flyash etc., though, raising in various degree the performance of magnesia cement, fundamentally solution all the time; The problem that mainly has following several respects:
1, be that above-mentioned patent and method all are to add properties-correcting agent and magnesium chloride liquid when magnesia cement uses.Because magnesium chloride and properties-correcting agent and magnesium oxide proportioning are very big to the quality influence of its magnesia cement, the raw material index is not quite similar and is stored and transported the influence of time conditions factor in addition, makes it operation inconvenience, complex process, be difficult to reach the stoichiometric requirement, be unfavorable for industrial production and popularize popular.
2, be because majority is to adopt the organism modification, so not only cost height but also easily aging, at present, people are putting forth effort research, go up shortcoming to overcome, but also do not find one so far comprehensively and the ideal solution.
The present invention is breakthrough to be to have changed existing magnesia cement technology and performance, is a new stage of magnesium cement development.Its main technical points is: start with from raw material control, magnesia is carried out the second-heating homogenizing handle, thereby make the modification of magnesia homogenizing; Adopt the inorganic additives modification, thereby greatly reduce cost and reliability; Magnesium Chloride Anhydrous is directly sneaked in the magnesia cement powder, only add water concocting during use.So both guarantee the magnesia cement Products Quality, simplified technology again, simple to operate, be easy to suitability for industrialized production and go into to popularize popular.
The objective of the invention is to realize in the following manner.
Magnesite is made grog through calcination, again through grinding, the heating homogenizing, operations such as storage and aging are made magnesia, again with grinding respectively after gypsum, kaolin, wollastonite, alunite, talcum, flyash, saw is not, compositions such as gold mine or magnesite tailings mud, the additive that mixes mixes mutually, the weight proportion of magnesia and additive is 100 parts of magnesias in the magnesia cement, additive 15-75 part, the concrete preparation process of magnesia is: with magnesite at 750 ℃ of-850 ℃ of following calcination ripe materials, with the fineness more than ripe grinding to 300 order, the reheat homogenizing, last storage and aging 5-72 hour.
The concrete preparation process of additive is:
Get separated pulverizing and become the above gypsum 1-20 part of 300 orders, kaolin 1-15 part, wollastonite 1-20 part, alunite 1-15 part, talcum 5-30 part, flyash 1-30 part is sawed not 1-20 part, and the weight ratio of gold mine, magnesite tailings mud 1-20 part mixes.
Embodiment:
Magnesia cement of the present invention, its usage is identical with Portland cement, during use according to the needs of construction work and cement products, can add in right amount and join sand, light skeletal, rough sawn and do not reach other inert materials, also can add that other organic-inorganics are toughness reinforcing, sanitas etc., use after adding the general static 20-30 of slip minute that water stirs, or use after continuously stirring 20-30 minute.
The detection of magnesia cement of the present invention:
1, gets 100 parts of modification magnesias.65 parts of additives, fineness is 325 orders, adds 150 parts of sands, 28 parts in water is mixed into slip, makes 4 * 4 * 16cm
3Standard test block is the maintenance 8-16 hour demoulding under 20+2 ℃ temperature, and maintenance at room temperature is 28 days then, insert respectively again in the muriate water and ortho-water in soaked 6 months, appearance results surface-brightening, matter be hard, do not have be full of cracks, resistance to compression, folding strength detect as following table:
Soak 6 months bending and compressive strength kg/cm
2
| Immersion liquid | Resistance to compression | Anti-folding | |||||
| Type | PH | 1 | 3 | 6 | 1 | 3 | 6 |
| Muriate | 6.18 | 688 | 696 | 751 | 153 | 172 | 198 |
| 20 ℃ of clear water | 7 | 652 | 669 | 644 | 137 | 131 | 126 |
2, get 100 parts of modification magnesias, 65 parts of additives, fineness 325 orders add not 20 parts of 30-60 order saws, add 35 parts in water, mix into slip and make 7 * 180cm
2Pantile, place roofing under state of nature, to test towards sunny side and in the shade, in 1 year time limit, summer, top temperature was 37 ℃, winter minimum temperature-17 ℃ artificial water spray 50 times, the experimental observation result: the pantile smooth surface is smooth, do not have cracking, wear out to peel off and fade to whiten and return the halogen phenomenon, hardness as before, it is lain in people two people that can carry 80 kilograms of body weight on three fulcrums simultaneously, dark and damp day early, evening no dewfall draw damp phenomenon.
Magnesite cement of the present invention and preparation technology thereof, solved with the product surface that occurs in using in the common magnesite cement of magnesite production easily whiten, fade, damp suction surface halide accumulation dewfall, water-resistance be poor, the long-term problems such as be full of cracks, strength decreased of using, the various physicochemical properties of modified magnesite cement of the present invention can be compared with white cement, some physicochemical property surpasses white cement, thereby magnesite cement of the present invention and preparation technology thereof, can substitute existing product and production technology thereof fully, have good value for applications.
Claims (3)
1, a kind of magnesia cement and preparation technology thereof, it is characterized in that magnesite is made magnesia through operations such as calcination, grinding, homogenizing, ageings, adding the additive that is grouped into one-tenth such as gypsum, kaolin, wollastonite, alunite, talcum, flyash, sawdust, gold mine or magnesite tailings mud again mixes, the mixed weight of each composition is than being 100 parts of magnesias, additive 15-75 part.
2, technology according to claim 1 is characterized in that the preparation process of magnesia is: magnesite is at 750 ℃ of-850 ℃ of calcination ripe materials, and being ground into fineness through pulverizer is more than 300 orders, again in 120 ℃ of-450 ℃ of homogenizing, and last storage and aging 5-72 hour.
3, technology according to claim 1, the preparation process that it is characterized in that additive is: with the fineness more than compositions such as gypsum, kaolin, wollastonite, alunite, talcum, saw and gold mine, magnesite tailings mud difference grinding to 300 order, press gypsum 1-20 part then, kaolin 1-15 part, wollastonite 1-20 stone alum 1-15 part, talcum 5-30 part, flyash 1-30 part, saw not 1-20 part, the weight ratio of gold mine, magnesite tailings mud 1-20 part mixes and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110541A CN1096279A (en) | 1994-04-14 | 1994-04-14 | A kind of magnesia cement and preparation technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110541A CN1096279A (en) | 1994-04-14 | 1994-04-14 | A kind of magnesia cement and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1096279A true CN1096279A (en) | 1994-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94110541A Pending CN1096279A (en) | 1994-04-14 | 1994-04-14 | A kind of magnesia cement and preparation technology thereof |
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| CN (1) | CN1096279A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424540A (en) * | 2011-08-11 | 2012-04-25 | 南昌大学 | Preparation method for magnesite material water resistance modifier, and use method thereof |
| CN102875046A (en) * | 2012-10-24 | 2013-01-16 | 山东建科特种建筑工程技术中心 | Efficient powder type retarder for magnesite cement |
| CN103351128A (en) * | 2013-08-02 | 2013-10-16 | 庄景阳 | Glazed tile paving method |
| CN103568103A (en) * | 2012-08-10 | 2014-02-12 | 济南市天桥区杰美菱镁建材研究所 | Technological method for producing building frameworks |
| CN103864336A (en) * | 2014-02-09 | 2014-06-18 | 黄小仙 | Preparation method of cement composite additive |
| CN105254272A (en) * | 2015-11-12 | 2016-01-20 | 河北林宏建材科技有限公司 | Fireproof heat preservation partition wall board and preparation method thereof |
| CN110393103A (en) * | 2019-08-23 | 2019-11-01 | 宜兴福莱尔园林工艺品有限公司 | A kind of the gardens flowerpot and its mechanization manufacturing method of magnesium gelatinous material |
-
1994
- 1994-04-14 CN CN94110541A patent/CN1096279A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424540A (en) * | 2011-08-11 | 2012-04-25 | 南昌大学 | Preparation method for magnesite material water resistance modifier, and use method thereof |
| CN103568103A (en) * | 2012-08-10 | 2014-02-12 | 济南市天桥区杰美菱镁建材研究所 | Technological method for producing building frameworks |
| CN102875046A (en) * | 2012-10-24 | 2013-01-16 | 山东建科特种建筑工程技术中心 | Efficient powder type retarder for magnesite cement |
| CN102875046B (en) * | 2012-10-24 | 2014-03-19 | 山东建科特种建筑工程技术中心 | Efficient powder type retarder for magnesite cement |
| CN103351128A (en) * | 2013-08-02 | 2013-10-16 | 庄景阳 | Glazed tile paving method |
| CN103864336A (en) * | 2014-02-09 | 2014-06-18 | 黄小仙 | Preparation method of cement composite additive |
| CN105254272A (en) * | 2015-11-12 | 2016-01-20 | 河北林宏建材科技有限公司 | Fireproof heat preservation partition wall board and preparation method thereof |
| CN110393103A (en) * | 2019-08-23 | 2019-11-01 | 宜兴福莱尔园林工艺品有限公司 | A kind of the gardens flowerpot and its mechanization manufacturing method of magnesium gelatinous material |
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