CN101255034A - Novel additive for producing light-burned magnesia building material capable of replacing magnesium chloride - Google Patents

Novel additive for producing light-burned magnesia building material capable of replacing magnesium chloride Download PDF

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Publication number
CN101255034A
CN101255034A CNA2008100107747A CN200810010774A CN101255034A CN 101255034 A CN101255034 A CN 101255034A CN A2008100107747 A CNA2008100107747 A CN A2008100107747A CN 200810010774 A CN200810010774 A CN 200810010774A CN 101255034 A CN101255034 A CN 101255034A
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CN
China
Prior art keywords
magnesium chloride
construction
magnesia
sulfate
novel
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CNA2008100107747A
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Chinese (zh)
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CN100569689C (en
Inventor
马再男
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马再男
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Priority to CNB2008100107747A priority Critical patent/CN100569689C/en
Publication of CN101255034A publication Critical patent/CN101255034A/en
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Publication of CN100569689C publication Critical patent/CN100569689C/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures

Abstract

The invention relates to a novel moderator instead of magnesium chloride for producing light-burned magnesia building materials, which is characterized in that the moderator comprises the following raw materials by weight: 10kg ferrous sulfate, 0.1kg triethanolamine, 27kg magnesium sulfate, 8kg magnesium silicate, 6kg sodium silicate, 2kg aluminium dihydrogen phosphate, 15kg amorphous silicon dioxide, 6kg ammonium sulfate, 4kg bentonite, 7kg starch phosphate, 1kg potassium aluminum sulfate, 0.05kg titanate-NDZ-201 and 260kg water. The invention is a novel moderator instead of the magnesium chloride which is used in the production of the light-burned magnesia building materials and has good stability for a six-month storage without any change and wide use range, and is characterized in being burn-free, non-autoclave and no combustion with good wear resistance, high hardness, large compressive strength, convenient processing, fast curing, easy nailing, easy sawing, bright surface and good formability, and can be used in the construction industry for producing fireproofing boards, fire doors, partition boards, corrugated tiles, ventilation pipelines and, etc.

Description

A kind ofly be used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride
Technical field
The present invention relates to a kind of production material of construction blender, particularly a kind ofly be used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride.
Background technology
From 1986 by Frenchman's Sorel invention magnesia oxychloride cement since, be to produce material of construction as the blender of light calcined magnesia with magnesium chloride always.Light calcined magnesia adds the hydration rate that magnesium chloride later on not only can promote the oxidation magnesium, and can with magnesium oxide generation chemical reaction, generates new aquation material, make quickening time of coagulation, can obtain the higher product of intensity again.Magnesium oxide is a kind of alkaline matter, and molecular formula is MgO, generally adopts magnesite or rhombspar ore calcining back to pulverize at present both at home and abroad and makes, and the main component of magnesite or rhombspar ore is a magnesiumcarbonate.Temperature after calcining is less than 900 ℃, and magnesiumcarbonate decomposites magnesium oxide and carbonic acid gas, and this magnesium oxide has very high activity light calcined magnesia, can combine with magnesium chloride a series of chemical transformation takes place, and produces certain intensity and makes material of construction.When calcining temperature during greater than 1000 ℃, burn the very low reburned magnesia that is called of the magnesium oxide activity that, can not make material of construction, can only be used for chemical industry, papermaking, refractory materials etc.Content of magnesia in the light calcined magnesia is generally 70~85%, makes the magnesium oxide that material of construction is used, and is that 80~85% light calcined magnesia is good with content of magnesia generally.The molecular formula MgCl of magnesium chloride 2.6H 2O is referred to as bittern again, certain density magnesium chloride brine with slip is solidified produce intensity.Through long-term exploration research, all mixing back making material of construction according to a certain percentage with light calcined magnesia and magnesium chloride both at home and abroad, because it can solidify as cement, admittedly be referred to as magnesia oxychloride cement, sometimes in order to change its some character, people must add the properties-correcting agent filler therein and the strongthener glass fibre is made material of construction.But because the singularity of the xln that generates behind light calcined magnesia and the magnesium chloride hydration reaction, the necessary strict proportioning of grasping between them, in the careless slightly goods in remaining magnesium chloride and unreacted magnesium oxide and the goods crystallization point of contact of aquation phase because of higher solubleness is arranged, hydroscopicity causes magnesium oxychloride product to use in the environment of water logging and humidity, cause aquation in the goods to disintegrate mutually in the chlorion ease water inlet of aquation in mutually goods to occur and return halogen, return frost, the moisture absorption, buckling deformation, problems such as intensity reduction, influence magnesium oxychloride product and apply, magnesium oxychloride product is difficult to fundamentally address these problems at present.Though current have the propaganda of many method to add properties-correcting agent in magnesia oxychloride cement, try hard to change problems such as goods return halogen, return frost, the moisture absorption, buckling deformation, intensity reduction, effect is very little, is difficult to produce a desired effect in large-scale production process.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, purpose be for solve in the current magnesia unslacked material of construction exist return halogen, return frost, problems such as the moisture absorption, buckling deformation, intensity reduction, a kind of novel blender that the magnesia unslacked material of construction can replace magnesium chloride that is used to produce is provided.
The present invention is used to produce the novel blender content Description that the magnesia unslacked material of construction can replace magnesium chloride:
The present invention is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride, it is characterized in that: it comprises following raw material and content composition: ferrous sulfate 10kg, trolamine 0.1kg, sal epsom 27kg, Magnesium Silicate q-agent 8kg, water glass 6kg, dihydro aluminum phosphate 2kg, soft silica 15kg, ammonium sulfate 6kg, wilkinite 4kg, starch-phosphate 7kg, potassium aluminium sulfate 1kg, titanic acid ester-NDZ-201 0.05kg, water 260kg.
Its preparation method is finished by the following step:
(1), get half of preparation required water amount, water glass added and stir, add wilkinite again and stir, and then add trolamine and stir standby;
(2), getting remainder water adding ferrous sulfate, sal epsom, Magnesium Silicate q-agent, dihydro aluminum phosphate, soft silica, ammonium sulfate, potassium aluminium sulfate and titanic acid ester-NDZ-201 stirs;
(3), under condition of stirring the prepared product of step (1) being the thread shape pours in the prepared product of step (2), after mixing, stirring, the adding starch-phosphate stirs promptly to make and is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride.
The present invention is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride, has good stability, store 6 months no changes, have been widely used, that goods have is unburned, non-evaporating, do not burn, wear resistance is good, hardness is high, ultimate compression strength is big, easy to process, quick solidifying, easily nail, easy characteristics such as saw, surface-brightening, good moldability, can be used for building trade and make PLASTIC LAMINATED, fire door, partition plate, corrugated tile, ventilator trunk etc.
Embodiment
The present invention is used to produce novel blender that the magnesia unslacked material of construction can replace magnesium chloride and does below being achieved in that and specify.
Be used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride, it is characterized in that: it comprises following raw material and content composition: ferrous sulfate 10kg, trolamine 0.1kg, sal epsom 27kg, Magnesium Silicate q-agent 8kg, water glass 6kg, dihydro aluminum phosphate 2kg, soft silica 15kg, ammonium sulfate 6kg, wilkinite 4kg, starch-phosphate 7kg, potassium aluminium sulfate 1kg, titanic acid ester-NDZ-201 0.05kg, water 260kg.
Preparation is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride:
(1), get half of preparation required water amount, water glass added and stir, add wilkinite again and stir, and then add trolamine and stir standby;
(2), getting remainder water adding ferrous sulfate, sal epsom, Magnesium Silicate q-agent, dihydro aluminum phosphate, soft silica, ammonium sulfate, potassium aluminium sulfate and titanic acid ester-NDZ-201 stirs;
(3), under condition of stirring the prepared product of step (1) being the thread shape pours in the prepared product of step (2), after mixing, stirring, the adding starch-phosphate stirs promptly to make and is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride.
The present invention's preparation is used to produce the using method that the magnesia unslacked material of construction can replace the novel blender of magnesium chloride, usage quantity a wider range of the present invention, when goods require normal cure and demold, the time is 12~24 hours, and consumption of the present invention is 1.2 times of light calcined magnesia weight; When goods require set time fast, be 8~12 hours set time, and consumption of the present invention is 1.5 times of light calcined magnesia weight.
The present invention is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride, has good stability, stores 6 months no changes, is used to produce the magnesia unslacked material of construction and can replaces magnesium chloride, has been widely used.
Embodiment 1
Adopt the present invention to produce imitative carving fire door
Get content of magnesia greater than 80%, granularity 200 purpose light calcined magnesia 22kg, the present invention are used to produce novel blender 33kg that the magnesia unslacked material of construction can replace magnesium chloride, length broken cotton stalk 8.8kg, the sawdust 0.8kg less than 5mm.
Light calcined magnesia and the present invention are used to produce novel blender that the magnesia unslacked material of construction can replace magnesium chloride to be mixed to stir and adds broken cotton stalk after 10 minutes and sawdust stirred 10 minutes, pour vibratory compaction in the dapple mould of internal surface into, room temperature is placed demoulding maintenance after 24 hours again, curing temperature must not trickle less than 50 ℃.Sanding surface is carried out on the surface of cutting edge, polish after 4 days after 28 days, brush surface decoration material 3 times, makes imitative carving fire door, and the specification of imitative carving fire door is: 1850mm * 900mm * 35mm.
After testing:
Density: 0.6g/cm 3, flexural strength: 90Mpa, incendivity: do not burn, shock strength 16KJ/m 2
Implement 2
Adopt the present invention to produce wooden density board of generation
Get content of magnesia greater than 80%, granularity 200 purpose light calcined magnesia 20kg, the present invention are used to produce novel blender 30kg that the magnesia unslacked material of construction can replace magnesium chloride, length broken cotton stalk 7.6kg, the sawdust 1kg less than 5mm.
With light calcined magnesia and the present invention be used to produce novel blender that the magnesia unslacked material of construction can replace magnesium chloride mix stir 10 minutes after, adding broken cotton stalk stirred 5 minutes, adding sawdust again stirred 5 minutes, pour in the funnel and be taped against on the template through two roller extruding, maintenance demoulding after 12 hours, the room temperature maintenance was used abrasive finishing machine abrasive finishing after 20 days, and decorative paper is pasted on the two sides.Specification for wooden density board is: 2440mm * 1220mm * 18mm.
After testing:
Density: 839kg/m 3, flexural strength: 16.4Mpa, incendivity: do not burn, thickness swelling rate (96h): 0.8%, coefficient of softening 0.98, do not contain poisonous formaldehyde material.
Implement 3
Adopt production PLASTIC LAMINATED of the present invention
Get content of magnesia greater than 80%, granularity 200 purpose light calcined magnesia 8.25kg, the present invention are used to produce novel blender 9.9kg, sawdust 2.5kg that the magnesia unslacked material of construction can replace magnesium chloride, glass yarn grid cloth is an amount of, non-woven fabrics is an amount of.
Light calcined magnesia and the present invention are used to produce novel blender that the magnesia unslacked material of construction can replace magnesium chloride to be mixed to stir and adds sawdust after 10 minutes and stirred 10 minutes, pouring the material that stirs at mould middle berth one deck glass yarn grid cloth wipes off with scraper plate, repave layer of non-woven fabric, maintenance demoulding after 12 hours, keep flat natural curing and cut edge in 4 days, PLASTIC LAMINATED was made in maintenance in 28 days again.The specification of PLASTIC LAMINATED is: 2440mm * 1220mm * 6mm.
After testing:
Density: 950kg/m 3, flexural strength: 1.2Mpa, incendivity: do not burn, coefficient of softening 0.96, ultimate compression strength: 1.8~2.4Mpa, thermal conductivity :≤0.06510W/m.k.
Implement 4
Adopt the present invention to produce building inside and outside wall with building brick by laying bricks or stones
Get magnesium oxide 2.2kg, river sand 9kg, industrial iron CHARACTERISTICS OF TAILINGS SAND 9kg, the present invention is used to produce the novel blender 1.8kg that the magnesia unslacked material of construction can replace magnesium chloride.
With light calcined magnesia and river sand, industrial iron CHARACTERISTICS OF TAILINGS SAND, the present invention be used to produce novel blender that the magnesia unslacked material of construction can replace magnesium chloride mix stir 10 minutes after, pack in the hydraulic brick making machine mould, vibratory compaction can be carried after 12 hours in maintenance on the pallet, and health detected after 20 days:
Standard square: ultimate compression strength: 10.4Mpa, water-intake rate: 10%.
Hollow brick (390mm * 190mm * 190mm): strength grade Mpa (3.5 grades) actual measurement 3.7Mpa, the few angle mm of truncation: nothing, fracture propagation projection size mm: nothing, relative moisture content %:31%, impermeability: qualified: frost resistance: qualified.

Claims (2)

1, a kind of being used to produced the novel blender that the magnesia unslacked material of construction can replace magnesium chloride, it is characterized in that: it comprises following raw material and content composition: ferrous sulfate 10kg, trolamine 0.1kg, sal epsom 27kg, Magnesium Silicate q-agent 8kg, water glass 6kg, dihydro aluminum phosphate 2kg, soft silica 15kg, ammonium sulfate 6kg, wilkinite 4kg, starch-phosphate 7kg, potassium aluminium sulfate 1kg, titanic acid ester-NDZ-2010.05kg, water 260kg.
2, according to claim 1 being used to produced the novel blender that the magnesia unslacked material of construction can replace magnesium chloride, and it is characterized in that: its preparation method is finished by the following step:
(1), get half of preparation required water amount, water glass added and stir, add wilkinite again and stir, and then add trolamine and stir standby;
(2), getting remainder water adding ferrous sulfate, sal epsom, Magnesium Silicate q-agent, dihydro aluminum phosphate, soft silica, ammonium sulfate, potassium aluminium sulfate and titanic acid ester-NDZ-201 stirs;
(3), under condition of stirring the prepared product of step (1) being the thread shape pours in the prepared product of step (2), after mixing, stirring, the adding starch-phosphate stirs promptly to make and is used to produce the novel blender that the magnesia unslacked material of construction can replace magnesium chloride.
CNB2008100107747A 2008-03-28 2008-03-28 A kind ofly be used to produce the blender that the magnesia unslacked material of construction can replace magnesium chloride Expired - Fee Related CN100569689C (en)

Priority Applications (1)

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CNB2008100107747A CN100569689C (en) 2008-03-28 2008-03-28 A kind ofly be used to produce the blender that the magnesia unslacked material of construction can replace magnesium chloride

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CNB2008100107747A CN100569689C (en) 2008-03-28 2008-03-28 A kind ofly be used to produce the blender that the magnesia unslacked material of construction can replace magnesium chloride

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CN101255034A true CN101255034A (en) 2008-09-03
CN100569689C CN100569689C (en) 2009-12-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435312A (en) * 2013-09-04 2013-12-11 镇江威信广厦模块建筑有限公司 Preparation method of light-weight wall brick
CN104876640A (en) * 2015-05-15 2015-09-02 蚌埠营军新型墙体材料有限公司 Light environment-friendly unfired hollow brick and preparation method thereof
CN106630732A (en) * 2015-10-28 2017-05-10 斯富迈材料科技(上海)有限公司 Durability additive capable of increasing magnesium matter cement and production method thereof
EP3225605A4 (en) * 2014-11-28 2018-08-29 Su, Zebin Tk-jh mineral interface active material, and preparation method and use method therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435312A (en) * 2013-09-04 2013-12-11 镇江威信广厦模块建筑有限公司 Preparation method of light-weight wall brick
CN103435312B (en) * 2013-09-04 2015-09-30 威信广厦模块住宅工业有限公司 A kind of preparation method of light wall brick
EP3225605A4 (en) * 2014-11-28 2018-08-29 Su, Zebin Tk-jh mineral interface active material, and preparation method and use method therefor
CN104876640A (en) * 2015-05-15 2015-09-02 蚌埠营军新型墙体材料有限公司 Light environment-friendly unfired hollow brick and preparation method thereof
CN106630732A (en) * 2015-10-28 2017-05-10 斯富迈材料科技(上海)有限公司 Durability additive capable of increasing magnesium matter cement and production method thereof

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Publication number Publication date
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Granted publication date: 20091216

Termination date: 20120328