CN102976674A - Composite cement foam board for building outer wall and method for preparing same - Google Patents
Composite cement foam board for building outer wall and method for preparing same Download PDFInfo
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- CN102976674A CN102976674A CN2012104910609A CN201210491060A CN102976674A CN 102976674 A CN102976674 A CN 102976674A CN 2012104910609 A CN2012104910609 A CN 2012104910609A CN 201210491060 A CN201210491060 A CN 201210491060A CN 102976674 A CN102976674 A CN 102976674A
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Abstract
The invention discloses a composite cement foam board for a building outer wall and a method for preparing the same. The composite cement foam board is prepared from 40-48% (by weigh) of cement, 13-21% (by weigh) of straw carbon dust, 3.3-3.9% (by weigh) of foaming agent, 0.6-1% (by weigh) of foam stabilizer, 0.5-0.9% (by weigh) of early strength agent, 0.7-1.2% (by weigh) of polypropylene fiber, 1.2-2% (by weigh) of curing agent, 0.9-1.8% (by weigh) of waterproof agent and 30% (by weigh) of water. The method for preparing the composite cement foam board comprises the steps of: burning straws into carbon dust; pouring the carbon dust into a stirrer holding 30% (by weigh) of water and stirring for three minutes; adding 40-48% (by weigh) of cement to the stirrer and then stirring for two minutes; adding 0.9-1.8% (by weigh) of waterproof agent, 0.6-1% (by weigh) of foam stabilizer, 0.7-1.2% (by weigh) of polypropylene fiber and 0.5-0.9% (by weigh) of early strength agent to the stirrer and then stirring for 40 seconds; adding 1.2-2% (by weigh) of curing agent to the stirrer and then stirring for 20 seconds; and adding 3.3-3.9% (by weigh) of foaming agent and stirring for 7-11 seconds, and then pouring all of the mixture into a die in three seconds; demolding in 8 hours; and adding water for maintenance for 15 days, and then releasing the finished product from the factory.
Description
Technical field
The invention belongs to the technical field of novel wall material, relate to a kind of used for building exterior wall combined type cement foamed board and preparation method thereof.
Background technology
Existing wall heat insulation material mainly is divided into inorganic heat insulation material and organic insulation material.Organic insulation material mainly comprises the organic foam plastics such as polystyrene, urethane.Although the organic insulation material light weight, very easily burning, potential safety hazard is larger, therefore few the employing.Fire line is good, deformation coefficient is little, ageing resistance is strong, steady performance because inorganic heat insulation material has, and it is vast therefore to use it for the wall thermal insulating market outlook.Existing a kind of inorganic heat insulation material mainly take flyash and cement as main raw material, although have the characteristics such as good fire resistance, deformation coefficient is little, ageing resistance is strong, is compared with organic insulation material, and its proportion is larger.It is superfluous that present China rural area utilizes stalk to act as a fuel, and the phenomenon of crop straw burning is more serious in vain everywhere, and stalk resource does not obtain utilizing.Utilize the carbon ash that produces behind the crop straw burning to produce wall heat insulation material, stalk resource is fully utilized, and can develops new product for building materials.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of used for building exterior wall combined type cement foamed board and preparation method thereof, and this exterior wall is not only fire-retardant with combined type cement foamed board, and light weight; By the preparation method of this used for building exterior wall combined type cement foamed board, can produce have that fire line is good, deformation coefficient is little, ageing resistance is strong, stable performance and the low combined type cement foamed board of cost.
A kind of used for building exterior wall combined type cement foamed board of the present invention, cement is 40～48% (weight), stalk carbon ash is 13～21% (weight), whipping agent is 3.3～3.9% (weight), and suds-stabilizing agent is 0.6～1% (weight), and hardening accelerator is 0.5～0.9% (weight), polypropylene fibre is 0.7～1.2% (weight), solidifying agent is 1.2～2% (weight), and water-resisting agent is 0.9～1.8% (weight), and water is 30% (weight).
Described whipping agent is hydrogen peroxide or is the mixture of Calcium hydrogen carbonate and aluminium powder.
Described stablizer is calcium stearate.
A kind of used for building exterior wall combined type cement foamed board preparation method of the present invention may further comprise the steps:
(1) straw powder is broken into 3-5 centimetre grass silk, then become the carbon ash by boiler combustion, the flue gas that produces behind the straw burning is processed respectively through two liquefaction ponds, make the quantity discharged of carbonic acid gas be down to 5% of ordinary combustion quantity discharged, through the carbon ash content cold scattering after the liquefaction processing but 12 hours, then sieve series became pulvis;
(2) the carbon ash that will make pulvis is poured into and is equipped with in the stirrer that water is 30% (weight), stirs 3 minutes, and water temperature is controlled at 38-42 ℃;
(3) adding cement in the stirrer is restir 2 minutes after 40～48% (weight);
(4) adding water-resisting agent in the stirrer is that 0.9～1.8% (weight), suds-stabilizing agent are that 0.6～1% (weight), polypropylene fibre are after 0.7～1.2% (weight), hardening accelerator are 0.5～0.9% (weight), to stir 40 seconds;
(5) add in the stirrer after solidifying agent is 1.2～2% (weight), stirred 20 seconds;
(6) adding whipping agent to stirrer is that 3.3～3.9% (weight) stirred 7～11 seconds, then all pours mould in three seconds, leaves standstill curing molding;
Plastic cloth maintenance 4 days is covered in the demoulding in (7) 8 hours, cuts into the plate of required specification;
(8) adding water curing dispatched from the factory after 15 days.
The invention has the beneficial effects as follows, the combined type cement foamed board grey take stalk carbon and cement is made as main raw material, because of stalk carbon gray scale prior art light coal ash several times, therefore above-mentioned used for building exterior wall combined type cement foamed board is in the situation with volume, the foamed board of making as main raw material take flyash and cement than prior art is light more than 30%, has good flame retardant effect by testing above-mentioned foamed board simultaneously; By the preparation method of above-mentioned used for building exterior wall combined type cement foamed board, the foamed board of producing after testing, has that fire line is good, deformation coefficient is little, ageing resistance is strong, stable performance and low characteristics of cost.
Embodiment
Embodiment one
A kind of used for building exterior wall combined type cement foamed board of the present invention, cement is 48% (weight), stalk carbon ash is 13% (weight), whipping agent is 3.9% (weight), and suds-stabilizing agent is 0.7% (weight), and hardening accelerator is 0.6% (weight), polypropylene fibre is 0.9% (weight), solidifying agent is 2% (weight), and water-resisting agent is 0.9% (weight), and water is 30% (weight).Described whipping agent can be hydrogen peroxide or is the mixture of Calcium hydrogen carbonate and aluminium powder.Described stablizer can be calcium stearate.
The preparation method of above-mentioned used for building exterior wall combined type cement foamed board may further comprise the steps:
(1) straw powder is broken into 3-5 centimetre grass silk, then become the carbon ash by boiler combustion, the flue gas that produces behind the straw burning is processed respectively through two liquefaction ponds, make the quantity discharged of carbonic acid gas be down to 5% of ordinary combustion quantity discharged, through the carbon ash content cold scattering after the liquefaction processing but 12 hours, then sieve series became pulvis;
(2) the carbon ash that will make pulvis is poured in the stirrer that water 30% (weight) is housed, and stirs 3 minutes, and water temperature is controlled at 38-42 ℃;
(3) adding cement in the stirrer is restir 2 minutes after 48% (weight);
(4) adding water-resisting agent in the stirrer is that 0.9% (weight), suds-stabilizing agent are that 0.7% (weight), polypropylene fibre are after 0.9% (weight), hardening accelerator are 0.6% (weight), to stir 40 seconds;
(5) add in the stirrer after solidifying agent is 2% (weight), stirred 20 seconds;
(6) adding whipping agent to stirrer is that 3.9% (weight) stirred 7～11 seconds, then all pours mould in three seconds, leaves standstill curing molding;
Plastic cloth maintenance 4 days is covered in the demoulding in (7) 8 hours, cuts into the plate of required specification.
(8) adding water curing dispatched from the factory after 15 days.
Above-mentioned used for building exterior wall combined type cement foamed board, it is as follows to detect its physicals with reference to national JG/IO41-2011 standard:
Table 1
| Test item | Unit | Performance index |
| Dry density | Kg／m 3 | 208 |
| Water ratio | ％ | 3.1 |
| Water-intake rate | ％ | 7 |
| Dried contract | mm／m | 5 |
| Frost resistance/mass loss | ％ | 2.7 |
| Loss of strength | ％ | 4 |
| Ultimate compression strength | MPa | 0.44 |
| Folding strength | MPa | 0.18 |
| Vertical tensile strength | MPa | 0.17 |
| Coefficient of softening | --- | 0.8 |
| Carbonation coefficient | --- | 0.9 |
| Thermal conductivity | W／(M·K) | 0.051 |
| Fire rating | --- | A 1Level |
Embodiment two
A kind of used for building exterior wall combined type cement foamed board of the present invention, cement is 45% (weight), stalk carbon ash is 16% (weight), whipping agent is 3.3% (weight), and suds-stabilizing agent is 1% (weight), and hardening accelerator is 0.9% (weight), polypropylene fibre is 0.7% (weight), solidifying agent is 2.2% (weight), and water-resisting agent is 0.9% (weight), and water is 30% (weight).Described whipping agent can be hydrogen peroxide or is the mixture of Calcium hydrogen carbonate and aluminium powder.Described stablizer can be calcium stearate.
The preparation method of above-mentioned used for building exterior wall combined type cement foamed board may further comprise the steps:
(1) straw powder is broken into 3-5 centimetre grass silk, then become the carbon ash by boiler combustion, the flue gas that produces behind the straw burning is processed respectively through two liquefaction ponds, make the quantity discharged of carbonic acid gas be down to 5% of ordinary combustion quantity discharged, through the carbon ash content cold scattering after the liquefaction processing but 12 hours, then sieve series became pulvis;
(2) the carbon ash that will make pulvis is poured in the stirrer that water 30% (weight) is housed, and stirs 3 minutes, and water temperature is controlled at 38-42 ℃;
(3) adding cement in the stirrer is restir 2 minutes after 45% (weight);
(4) add water-resisting agent in the stirrer for O.9% (weight), suds-stabilizing agent are that 1% (weight), polypropylene fibre are 0.7% (weight), hardening accelerator for after O.9% (weight), stirred 40 seconds;
(5) add in the stirrer after solidifying agent is 2.2% (weight), stirred 20 seconds;
(6) adding whipping agent to stirrer is that 3.3% (weight) stirred 7～11 seconds, then all pours mould in three seconds, leaves standstill curing molding;
Plastic cloth maintenance 4 days is covered in the demoulding in (7) 8 hours, cuts into the plate of required specification.
(8) adding water curing dispatched from the factory after 15 days.
Above-mentioned used for building exterior wall combined type cement foamed board, it is as follows to detect its physicals with reference to national JG/1041-2011 standard:
Table 2
| Test item | Unit | Performance index |
| Dry density | Kg／m 3 | 203 |
| Water ratio | ％ | 3 |
| Water-intake rate | ％ | 7．5 |
| Dried contract | mm／m | 4 |
| Frost resistance/mass loss | ％ | 2．6 |
| Loss of strength | ％ | 4．2 |
| Ultimate compression strength | MPa | 0．45 |
| Folding strength | MPa | 0．17 |
| Vertical tensile strength | MPa | O．16 |
| Coefficient of softening | --- | O．84 |
| Carbonation coefficient | --- | O．85 |
| Thermal conductivity | W／(M·K) | 0.052 |
| Fire rating | --- | The A1 level |
Embodiment three
A kind of used for building exterior wall combined type cement foamed board of the present invention, cement is 40% (weight), stalk carbon ash is 21% (weight), whipping agent is 3.7% (weight), and suds-stabilizing agent is 0.6% (weight), and hardening accelerator is 0.5% (weight), polypropylene fibre is 1.2% (weight), solidifying agent is 1.2% (weight), and water-resisting agent is 1.8% (weight), and water is 30% (weight).Described whipping agent can be hydrogen peroxide or is the mixture of Calcium hydrogen carbonate and aluminium powder.Described stablizer can be calcium stearate.
The preparation method of above-mentioned used for building exterior wall combined type cement foamed board may further comprise the steps:
(1) straw powder is broken into 3-5 centimetre grass silk, then become the carbon ash by boiler combustion, the flue gas that produces behind the straw burning is processed respectively through two liquefaction ponds, make the quantity discharged of carbonic acid gas be down to 5% of ordinary combustion quantity discharged, through the carbon ash content cold scattering after the liquefaction processing but 12 hours, then sieve series became pulvis;
(2) the carbon ash that will make pulvis is poured in the stirrer that water 30% (weight) is housed, and stirs 3 minutes, and water temperature is controlled at 38-42 ℃;
(3) adding cement in the stirrer is restir 2 minutes after 40% (weight);
(4) adding water-resisting agent in the stirrer is that 1.8% (weight), suds-stabilizing agent are that 0.6% (weight), polypropylene fibre are after 1.2% (weight), hardening accelerator are 0.5% (weight), to stir 40 seconds;
(5) add in the stirrer after solidifying agent is 1.2% (weight), stirred 20 seconds;
(6) adding whipping agent to stirrer is that 3.7% (weight) stirred 7～11 seconds, then all pours mould in three seconds, leaves standstill curing molding;
Plastic cloth maintenance 4 days is covered in the demoulding in (7) 8 hours, cuts into the plate of required specification.
(8) adding water curing dispatched from the factory after 15 days.
Above-mentioned used for building exterior wall combined type cement foamed board, it is as follows to detect its physicals with reference to national JG/1041-2011 standard:
Table 3
| Test item | Unit | Performance index |
| Dry density | Kg／m 3 | 198 |
| Water ratio | ％ | 2.9 |
| Water-intake rate | ％ | 6 |
| Dried contract | mm／m | 5.1 |
| Frost resistance/mass loss | ％ | 2.5 |
| Loss of strength | ％ | 3.8 |
| Ultimate compression strength | MPa | 0.43 |
| Folding strength | MPa | 0.16 |
| Vertical tensile strength | MPa | 0.16 |
| Coefficient of softening | --- | 0.78 |
| Carbonation coefficient | --- | 0.87 |
| Thermal conductivity | W／(M·K) | 0.050 |
| Fire rating | --- | A 1Level |
Claims (4)
1. used for building exterior wall combined type cement foamed board, it is characterized in that: cement is 40～48% (weight), stalk carbon ash is 13～21% (weight), whipping agent is 3.3～3.9% (weight), suds-stabilizing agent is 0.6～1% (weight), hardening accelerator is 0.5～0.9% (weight), polypropylene fibre is 0.7～1.2% (weight), solidifying agent is 1.2～2% (weight), water-resisting agent is 0.9～1.8% (weight), and water is 30% (weight).
2. a kind of used for building exterior wall combined type cement foamed board according to claim 1 is characterized in that: described whipping agent is hydrogen peroxide or is the mixture of Calcium hydrogen carbonate and aluminium powder.
3. a kind of used for building exterior wall combined type cement foamed board according to claim 1, it is characterized in that: described stablizer is calcium stearate.
4. the preparation method of a used for building exterior wall combined type cement foamed board may further comprise the steps:
(1) straw powder is broken into 3-5 centimetre grass silk, then become the carbon ash by boiler combustion, the flue gas that produces behind the straw burning is processed respectively through two liquefaction ponds, make the quantity discharged of carbonic acid gas be down to 5% of ordinary combustion quantity discharged, through the carbon ash content cold scattering after the liquefaction processing but 12 hours, then sieve series became pulvis;
(2) the carbon ash that will make pulvis is poured into and is equipped with in the stirrer that water is 30% (weight), stirs 3 minutes, and water temperature is controlled at 38-42 ℃;
(3) adding cement in the stirrer is restir 2 minutes after 40～48% (weight);
(4) adding water-resisting agent in the stirrer is that 0.9～1.8% (weight), suds-stabilizing agent are that 0.6～1% (weight), polypropylene fibre are after 0.7～1.2% (weight), hardening accelerator are 0.5～0.9% (weight), to stir 40 seconds;
(5) add in the stirrer after solidifying agent is 1.2～2% (weight), stirred 20 seconds;
(6) adding whipping agent to stirrer is that 3.3～3.9% (weight) stirred 7～11 seconds, then all pours mould in three seconds, leaves standstill curing molding;
Plastic cloth maintenance 4 days is covered in the demoulding in (7) 8 hours, cuts into the plate of required specification;
(8) adding water curing dispatched from the factory after 15 days.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104910609A CN102976674A (en) | 2012-11-28 | 2012-11-28 | Composite cement foam board for building outer wall and method for preparing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104910609A CN102976674A (en) | 2012-11-28 | 2012-11-28 | Composite cement foam board for building outer wall and method for preparing same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478366A (en) * | 2014-12-26 | 2015-04-01 | 无锡市康顺节能材料科技有限公司 | Rigid thermal insulation composite board and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584320A (en) * | 2012-01-05 | 2012-07-18 | 邹平汇超保温节能科技有限公司 | Novel portland cement-based foamed heat insulation board |
| CN102745962A (en) * | 2012-07-19 | 2012-10-24 | 张会君 | Straw ash wall thermal insulation material and preparation method thereof |
-
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- 2012-11-28 CN CN2012104910609A patent/CN102976674A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584320A (en) * | 2012-01-05 | 2012-07-18 | 邹平汇超保温节能科技有限公司 | Novel portland cement-based foamed heat insulation board |
| CN102745962A (en) * | 2012-07-19 | 2012-10-24 | 张会君 | Straw ash wall thermal insulation material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478366A (en) * | 2014-12-26 | 2015-04-01 | 无锡市康顺节能材料科技有限公司 | Rigid thermal insulation composite board and preparation method thereof |
| CN104478366B (en) * | 2014-12-26 | 2016-06-29 | 无锡市康顺节能材料科技有限公司 | Rigidity heat-preserving composite board and preparation method thereof |
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Owner name: YANCHENG JINQIANG ENERGY SAVING AND INSULATION TEC Free format text: FORMER OWNER: CHOU DANRONG Effective date: 20131031 |
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Effective date of registration: 20131031 Address after: Guo Meng Zhen Minle village in Jiangsu province in 224014 Yancheng City District No. 124 group Applicant after: Yancheng Jincheng energy saving heat preservation technology Co., Ltd. Address before: Guo Meng Zhen Minle village in Jiangsu province in 224014 Yancheng City District No. 131 group Applicant before: Chou Danrong |
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Application publication date: 20130320 |