CN105693180A - Gypsum based EPS composite thermal insulation wall material - Google Patents

Gypsum based EPS composite thermal insulation wall material Download PDF

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Publication number
CN105693180A
CN105693180A CN201410695507.3A CN201410695507A CN105693180A CN 105693180 A CN105693180 A CN 105693180A CN 201410695507 A CN201410695507 A CN 201410695507A CN 105693180 A CN105693180 A CN 105693180A
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CN
China
Prior art keywords
parts
eps
wall material
gypsum
cotton stalk
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Pending
Application number
CN201410695507.3A
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Chinese (zh)
Inventor
彭丽莉
钟意
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Chongqing Real Estate College
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Chongqing Real Estate College
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Publication date
Application filed by Chongqing Real Estate College filed Critical Chongqing Real Estate College
Priority to CN201410695507.3A priority Critical patent/CN105693180A/en
Publication of CN105693180A publication Critical patent/CN105693180A/en
Pending legal-status Critical Current

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Abstract

Belonging to the field of thermal insulation technologies for buildings, the invention discloses a gypsum based EPS composite thermal insulation wall material, which is composed of the following raw materials by weight: 0.1-1.1 parts of EPS particles, 50-80 parts of gypsum, 30-50 parts of slag, 2-5 parts of cotton stalk fiber, 10-30 parts of Portland cement, and 0.1-0.5 part of a gypsum retarder in a liquid-solid ratio of 0.7. Starting from environmental protection and comprehensive utilization of resources, the invention adopts the way of adding an appropriate amount of cotton stalk fiber to improve the shortcoming of EPS particle suspension, improves the bonding strength and workability of EPS particles and gypsum inorganic cementing material, and achieves good mechanical properties. An EPS gypsum based EPS composite wall material with an apparent density of 950-1300kg/m<3> and a compressive strength of 3.0-6.0MPa can be prepared, and building blocks made of the material can be used for a frame structure or light steel structure non-bearing thermal insulation filled wall.

Description

A kind of gypsum base EPS composite thermal-insulating wall material
Technical field
The invention discloses a kind of gypsum base EPS composite thermal-insulating wall material, belong to the thermal isolation technique field of building。
Background technology
In recent years, along with economic development, people are increasing to the demand of light high-strength building material, and this is highly beneficial with reduction structural elements to reducing dead load。Shi Chanmian big country of China, the yield of annual cotton stalk is also very abundant, but cotton stalk buries except on-site incineration and returning also except field, is used as only on a small quantity preparing bio-fuel, adsorbent, cellulose and insulation material。Cotton stalk contains abundant fiber, and cotton stalk fiber is the natural macromolecular material that nature is abundant, and in nature, the cotton stalk fiber element total amount of annual growth is up to tens tons。The Morphological Features of cotton stalk fiber is that draw ratio is big, specific strength is high, specific surface area is big, density is low and biodegradable etc., and its intensity can meet the requirement of reinforcing material in most cases。
EPS granule as construction material use on due to its light weight and surface hydrophobic, weak with gypsum slurry interfacial adhesion in the process of vibrating, be easily generated rising phenomenon。Current processing mode is substantially carried out chemical treatment, surfactant additives and " making shell " method of employing and " make shell is quiet to stop " etc., but these measures substantially increase the concrete price of EPS and operation easier。
From environmental conservation and comprehensive utilization of resources, the mode adding appropriate producing fibre from cotton stalk is adopted to improve the shortcoming that EPS granule suspends, it is possible to be substantially reduced the concrete price of EPS and operation easier。
Summary of the invention
The technical problem to be solved be for EPS granule as construction material use on due to its light weight and surface hydrophobic, in the process of vibrating weak with gypsum slurry interfacial adhesion, it is easily generated the phenomenon of floating, develops the gypsum base EPS composite thermal-insulating wall material utilizing producing fibre from cotton stalk。
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that:
A kind of gypsum base EPS composite thermal-insulating wall material, described insulating wall material is made up by weight of following material: it is made up of the raw material of following weight part ratio, EPS granule 0.1~1.1 part, 50~80 parts of Gypsum Fibrosum, 30~50 parts of slag, cotton stalk fiber 2~5 parts, portland cement 10~30 parts, calcium sulphate retarder 0.1~0.5 part, liquid-solid ratio 0.7。
Described EPS granule is formed through Special crushing crusher machine by waste polystyrene foam, and particle diameter is less than 5mm, density 19kg/m3
Described Gypsum Fibrosum is commercially available plaster of Paris。
Described slag is blast-furnace cinder。
Described portland cement is the Portland cement of 42.5 grades。
Described cotton stalk fiber is when the cotton stalk produced per year, after removing root fringe with chopper, is placed on cutting machine chopping and processes, obtain the cotton stalk fiber that length is 2 ~ 5mm。
Described calcium sulphate retarder is commercially available protein-based retarder。
The preparation method of a kind of gypsum base EPS composite thermal-insulating wall material provided by the present invention is as follows: first the producing fibre from cotton stalk of pulverizing and slag are stirred, it is subsequently adding Gypsum Fibrosum and cement mixing is uniform, 2~3min is stirred again with suitable quantity of water, add EPS granule stirring 2~3min, send into molding in former after forming sticky shape slurry, finally carry out natural curing 10d。
The invention has the beneficial effects as follows:
1. reduce the concrete price of EPS and operation easier;
2. can prepare apparent density is 950~1300kg/m3, comprcssive strength reaches the EPS composite wall body material of 3.0~6.0MPa, and the building block made with this material can serve as frame structure or lightweight steel construction non-bearing heat-preserving infilled wall。
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, and illustrative examples and explanation in this invention are used for explaining the present invention, but not as a limitation of the invention。
Embodiment 1
The cotton stalk produced per year will be worked as, after removing root fringe with chopper, be placed on cutting machine chopping and process, obtain the cotton stalk fiber that length is 2 ~ 5mm;
EPS granule 0.5 part, 60 parts of Gypsum Fibrosum, 40 parts of slag, cotton stalk fiber 2 parts, portland cement 15 parts, calcium sulphate retarder 0.1 part, liquid-solid ratio 0.7 is weighed according to parts by weight;
The producing fibre from cotton stalk of pulverizing and slag are stirred, it is subsequently adding Gypsum Fibrosum and cement mixing is uniform, then stir 2~3min with suitable quantity of water, add EPS granule stirring 2~3min, send into molding in former after forming sticky shape slurry, finally carry out natural curing 10d。
Embodiment 2
The cotton stalk produced per year will be worked as, after removing root fringe with chopper, be placed on cutting machine chopping and process, obtain the cotton stalk fiber that length is 2 ~ 5mm;
EPS granule 0.9 part, 50 parts of Gypsum Fibrosum, 45 parts of slag, cotton stalk fiber 3 parts, portland cement 25 parts, calcium sulphate retarder 0.2 part, liquid-solid ratio 0.7 is weighed according to parts by weight;
The producing fibre from cotton stalk of pulverizing and slag are stirred, it is subsequently adding Gypsum Fibrosum and cement mixing is uniform, then stir 2~3min with suitable quantity of water, add EPS granule stirring 2~3min, send into molding in former after forming sticky shape slurry, finally carry out natural curing 10d。
Embodiment 4
The cotton stalk produced per year will be worked as, after removing root fringe with chopper, be placed on cutting machine chopping and process, obtain the cotton stalk fiber that length is 2 ~ 5mm;
EPS granule 1.1 parts, 75 parts of Gypsum Fibrosum, 30 parts of slag, cotton stalk fiber 3 parts, portland cement 20 parts, calcium sulphate retarder 0.2 part, liquid-solid ratio 0.7 is weighed according to parts by weight;
The producing fibre from cotton stalk of pulverizing and slag are stirred, it is subsequently adding Gypsum Fibrosum and cement mixing is uniform, then stir 2~3min with suitable quantity of water, add EPS granule stirring 2~3min, send into molding in former after forming sticky shape slurry, finally carry out natural curing 10d。
Technical scheme is not limited to the restriction of above-mentioned specific embodiment, every technology deformation made according to technical scheme, each falls within protection scope of the present invention。

Claims (6)

1. a gypsum base EPS composite thermal-insulating wall material, it is characterized in that, described insulating wall material includes following material and makes by weight: EPS granule 0.1~1.1 part, 50~80 parts of Gypsum Fibrosum, 30~50 parts of slag, cotton stalk fiber 2~5 parts, portland cement 10~30 parts, calcium sulphate retarder 0.1~0.5 part, liquid-solid ratio 0.7。
2. a kind of gypsum base EPS composite thermal-insulating wall material according to claim 1, it is characterised in that described EPS granule is formed through Special crushing crusher machine by waste polystyrene foam, and particle diameter is less than 5mm, density 19kg/m3
3. a kind of gypsum base EPS composite thermal-insulating wall material according to claim 1, it is characterised in that described portland cement is the Portland cement of 42.5 grades。
4. a kind of gypsum base EPS composite thermal-insulating wall material according to claim 1, it is characterised in that described cotton stalk fiber is when the cotton stalk produced per year, after removing root fringe with chopper, is placed on cutting machine chopping and processes, obtain the cotton stalk fiber that length is 2 ~ 5mm。
5. a kind of gypsum base EPS composite thermal-insulating wall material according to claim 1, it is characterised in that described calcium sulphate retarder is commercially available protein-based retarder。
6. a kind of gypsum base EPS composite thermal-insulating wall material according to claim 1, it is characterized in that, the method comprises the steps: first the producing fibre from cotton stalk of pulverizing and slag to be stirred, it is subsequently adding Gypsum Fibrosum and cement mixing is uniform, 2~3min is stirred again with suitable quantity of water, add EPS granule stirring 2~3min, send into molding in former after forming sticky shape slurry, finally carry out natural curing 10d。
CN201410695507.3A 2014-11-27 2014-11-27 Gypsum based EPS composite thermal insulation wall material Pending CN105693180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410695507.3A CN105693180A (en) 2014-11-27 2014-11-27 Gypsum based EPS composite thermal insulation wall material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410695507.3A CN105693180A (en) 2014-11-27 2014-11-27 Gypsum based EPS composite thermal insulation wall material

Publications (1)

Publication Number Publication Date
CN105693180A true CN105693180A (en) 2016-06-22

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CN (1) CN105693180A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108892461A (en) * 2018-07-13 2018-11-27 安徽省神洲建材科技有限公司 A method of it adding straw fibers and prepares light heat-insulation wall material
CN110818373A (en) * 2019-11-19 2020-02-21 石河子大学 Desulfurized gypsum based EPS particle heat-insulation wall and preparation method thereof
CN110835254A (en) * 2019-11-19 2020-02-25 石河子大学 Low-cost high-strength water-resistant desulfurized gypsum board and preparation method thereof
CN111018464A (en) * 2019-11-19 2020-04-17 石河子大学 High-strength, light, heat-insulating and heat-insulating wall material and preparation method thereof
CN114644500A (en) * 2022-03-23 2022-06-21 福建众合开发建筑设计院有限公司 Novel light wallboard material for prefabricated building and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108892461A (en) * 2018-07-13 2018-11-27 安徽省神洲建材科技有限公司 A method of it adding straw fibers and prepares light heat-insulation wall material
CN110818373A (en) * 2019-11-19 2020-02-21 石河子大学 Desulfurized gypsum based EPS particle heat-insulation wall and preparation method thereof
CN110835254A (en) * 2019-11-19 2020-02-25 石河子大学 Low-cost high-strength water-resistant desulfurized gypsum board and preparation method thereof
CN111018464A (en) * 2019-11-19 2020-04-17 石河子大学 High-strength, light, heat-insulating and heat-insulating wall material and preparation method thereof
CN114644500A (en) * 2022-03-23 2022-06-21 福建众合开发建筑设计院有限公司 Novel light wallboard material for prefabricated building and preparation method thereof

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Application publication date: 20160622