CN101659539A - Formulation and manufacturing process for magnesite cement foamed bricks used on walls resistant to halogen return and salt efflorescence - Google Patents

Formulation and manufacturing process for magnesite cement foamed bricks used on walls resistant to halogen return and salt efflorescence Download PDF

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Publication number
CN101659539A
CN101659539A CN 200810119202 CN200810119202A CN101659539A CN 101659539 A CN101659539 A CN 101659539A CN 200810119202 CN200810119202 CN 200810119202 CN 200810119202 A CN200810119202 A CN 200810119202A CN 101659539 A CN101659539 A CN 101659539A
Authority
CN
China
Prior art keywords
percent
solution
magnesium chloride
polyvinyl alcohol
slurry
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
Application number
CN 200810119202
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Chinese (zh)
Inventor
仇锦明
仇剑锋
仇剑梅
焦清华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Yujiaming Santai Ion Science and Technology Research Institute Co Ltd
Original Assignee
Beijing Yujiaming Santai Ion Science and Technology Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Yujiaming Santai Ion Science and Technology Research Institute Co Ltd filed Critical Beijing Yujiaming Santai Ion Science and Technology Research Institute Co Ltd
Priority to CN 200810119202 priority Critical patent/CN101659539A/en
Publication of CN101659539A publication Critical patent/CN101659539A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30Compositions 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 magnesium cements or similar cements
    • C04B28/32Magnesium oxychloride cements, e.g. Sorel cement
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004Compounds chosen for the nature of their cations
    • C04B2103/0006Alkali metal or inorganic ammonium compounds
    • 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
    • C04B2111/21Efflorescence resistance
    • 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

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)

Abstract

The invention provides a formulation and a manufacturing process for foamed bricks. The formulation comprises the following components (in percentage by weight): 58 percent of industrial-grade magnesium oxide containing 85 percent of magnesium oxide, 21.6 percent of industrial-grade magnesium chloride containing 50 percent of magnesium chloride, 2 percent of polyvinyl alcohol, 0.6 to 1.6 percent of organosilicon hydrophobic agent, 1 to 2 percent of ammonium bicarbonate or ammonium carbonate serving as foaming agent, a proper amount of fiberglass bright silk or raw silk for reinforcement and medium alkali, and 17.5 percent of water. A production process comprises: (1) adding the magnesium chloride to water to dissolve the magnesium chloride and prepare a magnesium chloride solution 1; (2) adding the polyvinyl alcohol to water at 90 DEG C, melting the polyvinyl alcohol to prepare a solution 2 containing 6.7 percent of polyvinyl alcohol; (3) adding the organosilicon hydrophobic agent to the solutions 1 and 2 and obtaining a solution 3; (4) adding the magnesium oxide to the solution 3, evenly stirring and obtaining pasty slurry; (5) adding the foaming agent to the pasty slurry to obtain foamed slurry; and (6) injecting the foamed slurry into brick molds, flattening, keeping the brick molds at 40 DEG C for 8 hours, cooling, demolding and maintaining the obtained products at normal temperature for 15 days.

Description

The body of wall of the surface halide accumulation resistance scum prescription and the manufacturing process of magnesite cement foamed bricks
One, technical field
The present invention relates to a kind of modification of composite product and the prescription and the technology of energy-conserving product, the particularly body of wall of surface halide accumulation resistance scum prescription and manufacturing process thereof with magnesite cement foamed insulating brick.
Two, background technology
Chinese patent application number 91106378.1 moisture-absorption and halogenation resistant magnesia cements that alleviate the technology of own wt such as Chinese patent application number 200520121956.3 novel magnesite greenhouse skeletons and have surface halide accumulation resistance scum function about magnesite product, they all only have single function separately, can not have both functions simultaneously, therefore improved necessity arranged.
Three, summary of the invention
The objective of the invention is to make and not only have surface halide accumulation resistance scum function simultaneously but also have a fragment of brick of the magnesite cement foamed heat preservation energy-saving that the light body of wall of own wt uses, make it have all advantages of background technology, overcome its shortcoming, the objective of the invention is to realize that by the correlation technique that adopts organosilicon moisture repellent and whipping agent its prescription (weight %) and manufacturing process are as follows:
(1) prescription proportioning (weight %)
Contain the technical grade magnesium oxide 58% of magnesium oxide 85%, the technical grade magnesium chloride 21.6% that contains magnesium chloride 50%, polyvinyl alcohol 2%, organosilicon moisture repellent 0.6~1.6%, whipping agent bicarbonate of ammonia or volatile salt 1~2%, strengthen the glass fibre boiled-off silk of usefulness or raw silk, middle alkali is an amount of, water 17.5%.
(2) production technique is as follows:
1. magnesium chloride being added in the entry fully, stirring and dissolving makes magnesium chloride solution 1.
2. with in 90 ℃ of water of polyvinyl alcohol adding it fully being dissolved, make the solution 2 that contains polyvinyl alcohol 6.7%.
3. organosilicon moisture repellent is added stir in the mixed solution of solution 1,2 solution 3.
4. magnesium oxide is added stir in the solution 3 pasty slurry.
5. whipping agent is added evenly stir in the pasty slurry the foaming slurry.
6. the slurry that will foam injects stock mould to be wipeed off, keeps the demoulding of can lowering the temperature in 8 hours under 40 ℃ of conditions, and maintenance can be used in 15 days under the normal temperature.
Advantage of the present invention and positively effect
1. magnesia cement system foaming wall brick of the present invention had both had surface halide accumulation resistance scum function, and the while has in light weight again, the power saving function of good heat insulating.
2. the present invention adopts organic brick hydrophober, all has outside the anti-water surface halide accumulation resistance scum function on the surface that guarantees the material internal gap, can make the material surface carbonization become the durable especially stable hydrophobic surface of hydrophobic nature simultaneously.
3. weight reduction is disposable finishes with foaming for the surface halide accumulation resistance scum, and component is simple, technology is easy, the material and technology cost is all low, and the while has greatly promoted product performance price ratio, for applying the good condition of having created.
Four, embodiment
Prescription proportioning (weight %) is identical with the prescription of () in top three, and production technique is identical with the production technique of (two) in top three.
Embodiment 1.
Contain the technical grade magnesium oxide 58% of magnesium oxide 85%, the technical grade magnesium chloride 21.6% that contains magnesium chloride 50%, polyvinyl alcohol 2%, organic silicon rigidity-increasing aqua 0.6%, whipping agent bicarbonate of ammonia 1%, living glass of middle alkali or ripe glass fiber reinforced materials are an amount of, water 17.5%.
Embodiment 2
Contain the technical grade magnesium oxide 58% of magnesium oxide 85%, the technical grade magnesium chloride 21.6% that contains magnesium chloride 50%, polyvinyl alcohol 2%, organic silicon rigidity-increasing aqua 1.6%, whipping agent bicarbonate of ammonia 2%, living glass of middle alkali or ripe glass fiber reinforced materials are an amount of, water 17.5%.
The concrete manufacturing process of embodiment 1 and embodiment 2 all with top three in (two) in technology identical.

Claims (2)

1. the present invention relates to a kind of modification of composite product and the prescription and the technology of energy-conserving product, the particularly body of wall of surface halide accumulation resistance scum prescription and manufacturing process thereof, it is characterized in that prescription (weight %) is as follows with magnesite cement foamed insulating brick:
Contain the technical grade magnesium oxide 58% of magnesium oxide 85%, the technical grade magnesium chloride 21.6% that contains magnesium chloride 50%, polyvinyl alcohol 2%, organosilicon moisture repellent 0.6~1.6%, whipping agent bicarbonate of ammonia or volatile salt 1~2%, strengthen the glass fibre boiled-off silk of usefulness or raw silk, middle alkali is an amount of, water 17.5%.
According to the modification of a kind of composite product of claim 1 and the prescription and the technology of energy-conserving product, the particularly body of wall of surface halide accumulation resistance scum with the prescription and the manufacturing process thereof of magnesite cement foamed insulating brick, it is characterized in that:
Production technique is as follows:
1. magnesium chloride being added in the entry fully, stirring and dissolving makes magnesium chloride solution 1;
2. with in 90 ℃ of water of polyvinyl alcohol adding it fully being dissolved, make the solution 2 that contains polyvinyl alcohol 6.7%;
3. organosilicon moisture repellent is added stir in the mixed solution of solution 1,2 solution 3;
4. magnesium oxide is added stir in the solution 3 pasty slurry;
5. whipping agent is added evenly stir in the pasty slurry the foaming slurry;
6. the slurry that will foam injects stock mould to be wipeed off, keeps the demoulding of can lowering the temperature in 8 hours under 40 ℃ of conditions, and maintenance can be used in 15 days under the normal temperature.
CN 200810119202 2008-08-28 2008-08-28 Formulation and manufacturing process for magnesite cement foamed bricks used on walls resistant to halogen return and salt efflorescence Pending CN101659539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200810119202 CN101659539A (en) 2008-08-28 2008-08-28 Formulation and manufacturing process for magnesite cement foamed bricks used on walls resistant to halogen return and salt efflorescence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810119202 CN101659539A (en) 2008-08-28 2008-08-28 Formulation and manufacturing process for magnesite cement foamed bricks used on walls resistant to halogen return and salt efflorescence

Publications (1)

Publication Number Publication Date
CN101659539A true CN101659539A (en) 2010-03-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200810119202 Pending CN101659539A (en) 2008-08-28 2008-08-28 Formulation and manufacturing process for magnesite cement foamed bricks used on walls resistant to halogen return and salt efflorescence

Country Status (1)

Country Link
CN (1) CN101659539A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN107188447A (en) * 2017-07-18 2017-09-22 济南大学 A kind of magnesia cement composite foamable agent
EP3094606A4 (en) * 2014-01-17 2017-10-04 Luxe Crete, LLC Cement compositions, structures, and methods of use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP3094606A4 (en) * 2014-01-17 2017-10-04 Luxe Crete, LLC Cement compositions, structures, and methods of use
CN107188447A (en) * 2017-07-18 2017-09-22 济南大学 A kind of magnesia cement composite foamable agent

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Open date: 20100303