CN1952319A - Light wallboard of desulfurated gypsum - Google Patents

Light wallboard of desulfurated gypsum Download PDF

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Publication number
CN1952319A
CN1952319A CNA2006100702207A CN200610070220A CN1952319A CN 1952319 A CN1952319 A CN 1952319A CN A2006100702207 A CNA2006100702207 A CN A2006100702207A CN 200610070220 A CN200610070220 A CN 200610070220A CN 1952319 A CN1952319 A CN 1952319A
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China
Prior art keywords
gypsum
desulfurated plaster
desulfurated
parts
raw material
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Application number
CNA2006100702207A
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Chinese (zh)
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CN100387793C (en
Inventor
李国忠
李长春
于衍真
曲朝霞
周敏
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Jinan University
University of Jinan
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University of Jinan
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Publication date
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Priority to CNB2006100702207A priority Critical patent/CN100387793C/en
Publication of CN1952319A publication Critical patent/CN1952319A/en
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Publication of CN100387793C publication Critical patent/CN100387793C/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
    • 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
    • C04B28/14Compositions 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 calcium sulfate cements
    • C04B28/142Compositions 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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
    • C04B28/144Compositions 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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • 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)
  • Building Environments (AREA)

Abstract

The invention relates to a lightweight wallboard, belonging to the gypsum technological area, made of desulfuration gypsum or lightweight material. The light wallboard is made of the following stock by weight: one hundred of desulfuration gypsum powder, three to ten of polystyrol foaming particles, thirty to eighty of fly ash, one to five of ordinary silicate cement and one to three of 8% polyvinyl alcohol so on. It can be made to hollow or foaming lightweight wallboard. The performance of production in the invention can achieve or exceed the national quality standard and it is provided with light weight, heat insulation, sound insulation and anti-fire so on. It is a green environmental wall material.

Description

Light wallboard of desulfurated gypsum
(1) technical field under
The invention belongs to the technical field of building materials of gypsum, relating to a kind of is the Light trabs that main raw material(s) is produced by desulfurated plaster and light material.
(2) background technology
In recent years, along with the withdrawing from gradually of traditional materials for wall that with the clay solid brick is representative, frame structure building quietly rises in China, and more and more hot.Retaining wall is the chief component of frame structure building, in frame structure building, requires body of wall to have lightweight, performance such as heat insulation, sound insulation, shock-resistant, fire prevention.As the Light trabs of frame structure building retaining wall, obtain more concern because of adapting to industrialized requirement.
Desulfurated plaster is to carry out that desulfurizing and purifying is handled and the industry byproduct that obtains is a kind of trade waste with the flue gas that lime produces sulfurous fuels burning back, as not being used, not only needs fund and soil to build stockyard and contaminated environment.The main component of desulfurated plaster is a calcium sulphate dihydrate, and purity height, stable components, "dead" have gelling property through the desulfurated plaster after the calcination processing, and hydration and hardening body crystalline texture is tightr, has certain intensity.Utilize desulfurated plaster to produce light wall material, can significantly reduce the yield of the plaster of paris, help energy conservation, save the soil, and, help reducing the discharge value of sulfur dioxide, the protection environment for the waste disposal behind the means of flue gas desulfurization of power plant breaks a new path.But adopt existing technology, the Light trabs that utilizes desulfurated plaster to make, its performance does not reach instructions for use.
(3) summary of the invention
The present invention is in order to overcome the deficiency of above technology, provide a kind of desulfurated plaster that utilizes to be major ingredient, add a certain amount of auxiliary material, make have lightweight, heat insulation, sound insulation, intensity height, fire prevention, anti-ly damage by worms, the light wallboard of desulfurated gypsum of respiratory function etc., be a kind of environmental protection materials for wall.
The present invention realizes by following measure:
Light wallboard of desulfurated gypsum of the present invention, the desulfurated plaster of utilization after calcination processing made hollow light wall board for primary raw material, the desulfurization gypsum hollow Light trabs vertically have one row manhole, lateral strip is fluted, is to be made by the raw material of following weight portion:
100 parts in desulfurated plaster powder
Polystyrene foam particles 3-10 part
Flyash 30-80 part
Portland cement 1-5 part
Polyvinyl alcohol water solution 1-3 part of 8%;
Ratio of water to material 0.50-1.20.
Light wallboard of desulfurated gypsum of the present invention utilizes the desulfurated plaster after calcination processing to make foamed wall slab for primary raw material, and desulfurated plaster foamed wall slab lateral strip is fluted, is to be made by the raw material of following weight portion:
100 parts in desulfurated plaster powder
Polystyrene foam particles 3-10 part
Flyash 30-80 part
Portland cement 1-5 part
Polyvinyl alcohol water solution 1-3 part of 8%
Foamed Gypsum agent 0.5-5 part;
Ratio of water to material 0.50-1.20.
The preparation method of the Light trabs of the invention described above is: will be through desulfurated plaster powder, polystyrene foam particles, the flyash after the calcination processing, after Portland cement mixes, add the stirring of water and polyvinyl alcohol water solution and be slurry, the injection moulding mould, the slurry sclerosis back demoulding forms light wallboard of desulfurated gypsum.
The light wallboard of desulfurated gypsum that the present invention makes can be a hollow light wall board, also can be foamed wall slab.Hollow wall panel vertically has row's manhole, and number of openings is 5-10, and through-hole diameter is 30-80mm, alleviates own wt, and lateral strip is fluted, is convenient to building operations and installs.When making foamed wall slab, in slip, add a certain amount of Foamed Gypsum agent, no mold core pipe in the moulding form, directly moulding by casting.
The present invention utilizes through the desulfurated plaster after the calcination processing, do light filler with polystyrene foam particles, add a certain amount of flyash, Portland cement, polyvinyl alcohol water solution is made Light trabs, and properties of product meet or exceed state quality standard, and have lightweight, heat insulation, sound insulation, intensity height, fire prevention, anti-ly damage by worms, character such as respiratory function, be a kind of environmental protection materials for wall.
(4) description of drawings
Fig. 1 is the structural representation of desulfurization gypsum hollow Light trabs of the present invention.
Fig. 2 is the drawing in side sectional elevation of desulfurization gypsum hollow Light trabs of the present invention.
Fig. 3 is the structural representation of desulfurated plaster foamed wall slab of the present invention.
Fig. 4 is the drawing in side sectional elevation of desulfurated plaster foamed wall slab of the present invention.
Among the figure, 1 is the desulfurization gypsum hollow Light trabs, and 2 is the vertical circular through hole, and 3 is lateral groove, and 4 is the desulfurated plaster foamed wall slab, and 5 is lateral groove.
(5) specific embodiment
Embodiment one
As depicted in figs. 1 and 2, be structural representation of the present invention, there are 6 vertical circular through holes 2 inside of desulfurization gypsum hollow Light trabs 1, and there are two lateral groove 3 both sides, are used to install and use.Be with desulfurated plaster powder, polystyrene foam particles, flyash through calcination processing, Portland cement is that raw material mixes in proportion, add the stirring of water and polyvinyl alcohol water solution and be slurry, be poured in the mould of 6 core pipes, extract the mold core pipe after the slurry initial set out, make after the demoulding after slurry hardens fully.Desulfurization gypsum hollow Light trabs of the present invention is to be made by the raw material of following weight portion:
100 parts in desulfurated plaster powder
8 parts of polystyrene foam particles
70 parts in flyash
4 parts of Portland cements
3 parts of 8% polyvinyl alcohol water solutions;
Ratio of water to material 1.10.
Desulfurization gypsum hollow Light trabs technical performance test result such as table 1.
Table 1
Interventions Requested Unit Measured data The result
Surface density kg/m 2 43 Qualified
Drying shrinkage value mm/m 0.2 Qualified
The bending resistance rupture load N 1000 Qualified
Shock resistance 3 times (30kg, 0.5m) No through check Qualified
The single-point hanging force 800N,24h No through check Qualified
Flammability Non-combustible Non-combustible Qualified
Embodiment two:
The wallboard of present embodiment and embodiment one are basic identical, and its raw material proportioning is:
100 parts in desulfurated plaster powder
4 parts of polystyrene foam particles
40 parts in flyash
2 parts of Portland cements
1 part of 8% polyvinyl alcohol water solution;
Ratio of water to material 0.85.
Desulfurization gypsum hollow Light trabs technical performance test result such as table 2.
Table 2
Interventions Requested Unit Measured data The result
Surface density kg/m 2 41 Qualified
Drying shrinkage value mm/m 0.2 Qualified
The bending resistance rupture load N 1200 Qualified
Shock resistance 3 times (30kg, 0.5m) No through check Qualified
The single-point hanging force 800N,24h No through check Qualified
Flammability Non-combustible Non-combustible Qualified
Embodiment three
As shown in Figure 3 and Figure 4, be structural representation of the present invention, the both sides of desulfurated plaster foamed wall slab 4 are lateral groove 5, are used to install and use.The desulfurated plaster foamed wall slab, with desulfurated plaster powder, polystyrene foam particles, flyash through calcination processing, Portland cement is that raw material mixes in proportion, adding water and polyvinyl alcohol water solution stirs to behind the slurry, add a certain amount of Foamed Gypsum agent, no mold core pipe in the moulding form, direct moulding by casting is to be made by the raw material of following weight portion:
100 parts in desulfurated plaster powder
5 parts of polystyrene foam particles
70 parts in flyash
5 parts of Portland cements
2 parts of 8% polyvinyl alcohol water solutions
2 parts of Foamed Gypsum agent;
Ratio of water to material 0.90.
Desulfurated plaster foamed wall slab technical performance test result such as table 3.
Table 3
Interventions Requested Unit Measured data The result
Surface density kg/m 2 44 Qualified
Drying shrinkage value mm/m 0.3 Qualified
The bending resistance rupture load N 1300 Qualified
Shock resistance 3 times (30kg, 0.5m) No through check Qualified
The single-point hanging force 800N,24h No through check Qualified
Flammability Non-combustible Non-combustible Qualified
Embodiment four:
Embodiment four and embodiment three are basic identical, and its proportion of raw materials is:
100 parts in desulfurated plaster powder
2 parts of polystyrene foam particles
50 parts in flyash
2 parts of Portland cements
4 parts of 8% polyvinyl alcohol water solutions
5 parts of Foamed Gypsum agent;
Ratio of water to material 0.80.
The The performance test results of desulfurated plaster foamed wall slab sees Table 4
Table 4
Interventions Requested Unit Measured data The result
Surface density kg/m 2 43 Qualified
Drying shrinkage value mm/m 0.3 Qualified
The bending resistance rupture load N 1400 Qualified
Shock resistance 3 times (30kg, 0.5m) No through check Qualified
The single-point hanging force 800N,24h No through check Qualified
Flammability Non-combustible Non-combustible Qualified

Claims (2)

1. light wallboard of desulfurated gypsum, the desulfurated plaster of utilization after calcination processing made hollow light wall board for primary raw material, the desulfurization gypsum hollow Light trabs vertically have one row manhole, lateral strip is fluted, it is characterized in that: be to be made by the raw material of following weight portion:
100 parts in desulfurated plaster powder
Polystyrene foam particles 3-10 part
Flyash 30-80 part
Portland cement 1-5 part
Polyvinyl alcohol water solution 1-3 part of 8%;
Ratio of water to material 0.50-1.20.
2. a light wallboard of desulfurated gypsum utilizes the desulfurated plaster after calcination processing to make foamed wall slab for primary raw material, and desulfurated plaster foamed wall slab lateral strip is fluted, it is characterized in that: be to be made by the raw material of following weight portion:
100 parts in desulfurated plaster powder
Polystyrene foam particles 3-10 part
Flyash 30-80 part
Portland cement 1-5 part
Polyvinyl alcohol water solution 1-3 part of 8%
Foamed Gypsum agent 0.5-5 part;
Ratio of water to material 0.50-1.20.
CNB2006100702207A 2006-11-16 2006-11-16 Light wallboard of desulfurated gypsum Expired - Fee Related CN100387793C (en)

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Application Number Priority Date Filing Date Title
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CN100387793C CN100387793C (en) 2008-05-14

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041869A (en) * 2009-10-16 2011-05-04 孙凯 Mixed gypsum wallboard
CN102888942A (en) * 2012-10-29 2013-01-23 浙江建设职业技术学院 Paper desulfurization gypsum hollow light partition wall board and manufacturing method thereof
CN103485472A (en) * 2013-09-12 2014-01-01 句容联众科技开发有限公司 Crack-resistant sound-insulated lightweight wall
CN104496516A (en) * 2014-12-19 2015-04-08 平顶山市中裕新材料制造有限公司 Method for preparing light partition wall board by utilizing desulfurized gypsum
CN105272115A (en) * 2015-11-18 2016-01-27 魏春玲 Wall enclosing material produced through industrial byproduct gypsum
CN106082911A (en) * 2016-06-13 2016-11-09 浙江共创建材科技有限公司 A kind of architecture exterior wall insulating materials
CN106242468A (en) * 2016-08-01 2016-12-21 太仓顺如成建筑材料有限公司 A kind of Foamed Gypsum insulated compound trabs
CN111333397A (en) * 2020-03-27 2020-06-26 苏州市永盛防火材料有限公司 Preparation process of gypsum-based sandwich light partition springboard
CN111732398A (en) * 2020-06-16 2020-10-02 中建科技武汉有限公司 Light high-strength assembly type plate based on waste gypsum board and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423200C2 (en) * 1994-07-01 2001-02-15 Spavik Sa Method for producing a prefabricated plate-like element, prefabricated element and dispensing device for casting concrete-like materials
CN1188087A (en) * 1997-01-15 1998-07-22 许兴富 High strength water-proof gypsum hollow lath
CN100457410C (en) * 2006-01-23 2009-02-04 山东泰和东新股份有限公司 Method for producing paper gypsum board using desulfurated gypsum and ardealite

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041869B (en) * 2009-10-16 2014-08-06 孙凯 Mixed gypsum wallboard
CN102041869A (en) * 2009-10-16 2011-05-04 孙凯 Mixed gypsum wallboard
CN102888942A (en) * 2012-10-29 2013-01-23 浙江建设职业技术学院 Paper desulfurization gypsum hollow light partition wall board and manufacturing method thereof
CN103485472A (en) * 2013-09-12 2014-01-01 句容联众科技开发有限公司 Crack-resistant sound-insulated lightweight wall
CN103485472B (en) * 2013-09-12 2015-09-09 周建平 A kind of cracking resistance sound-proof lightweight wall
CN104496516B (en) * 2014-12-19 2016-07-20 平顶山市中裕新材料制造有限公司 A kind of method utilizing desulfurated plaster to prepare light cellular partition board
CN104496516A (en) * 2014-12-19 2015-04-08 平顶山市中裕新材料制造有限公司 Method for preparing light partition wall board by utilizing desulfurized gypsum
CN105272115A (en) * 2015-11-18 2016-01-27 魏春玲 Wall enclosing material produced through industrial byproduct gypsum
CN106082911A (en) * 2016-06-13 2016-11-09 浙江共创建材科技有限公司 A kind of architecture exterior wall insulating materials
CN106242468A (en) * 2016-08-01 2016-12-21 太仓顺如成建筑材料有限公司 A kind of Foamed Gypsum insulated compound trabs
CN111333397A (en) * 2020-03-27 2020-06-26 苏州市永盛防火材料有限公司 Preparation process of gypsum-based sandwich light partition springboard
CN111732398A (en) * 2020-06-16 2020-10-02 中建科技武汉有限公司 Light high-strength assembly type plate based on waste gypsum board and preparation method thereof
CN111732398B (en) * 2020-06-16 2021-07-06 中建科技武汉有限公司 Light high-strength assembly type plate based on waste gypsum board and preparation method thereof

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GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shandong Yongan Environmental Engineering Co., Ltd.

Assignor: University of Jinan

Contract record no.: 2011370000247

Denomination of invention: Light wallboard of desulfurated gypsum

Granted publication date: 20080514

License type: Exclusive License

Open date: 20070425

Record date: 20110607

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080514

Termination date: 20111116