CN102731048A - Alkali activated slag foamed cement product and its preparation method - Google Patents
Alkali activated slag foamed cement product and its preparation method Download PDFInfo
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- CN102731048A CN102731048A CN2012102210490A CN201210221049A CN102731048A CN 102731048 A CN102731048 A CN 102731048A CN 2012102210490 A CN2012102210490 A CN 2012102210490A CN 201210221049 A CN201210221049 A CN 201210221049A CN 102731048 A CN102731048 A CN 102731048A
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- water
- foam cement
- alkali
- alkali slag
- cement product
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Abstract
The invention provides an alkali activated slag foamed cement product and its preparation method. The product is prepared from the following raw materials by weight: 60 to 75% of an alkali slag cementing material, 0.5 to 1% of a composite admixture, 8 to 15% of foam and 16 to 25% of water. The alkali slag cementing material is prepared from the following raw materials by weight: 93.0 to 96.0% of slag powder, 1.0 to 2.0% of a water reducing agent and 2.0 to 5.0% of alkali powder particles. According to the invention, in a formula, the slag powder and the alkali powder particles which are generally used as industrial wastes are utilized as the cementing material for the foamed cement; the product has excellent early-strength mechanical performance and thermal insulation performance, stable and uniform foam and a short setting time; cost is reduced while production efficiency is improved. The product provided in the invention can be processed and molded in a factory or directly casted after mixing on the spot and is applicable to a non-load-bearing wall building block, a floor heating insulation layer and a roof insulation layer of a building or to preparation of various insulation materials.
Description
Technical field
The present invention relates to a kind of foam cement and preparation method thereof.
Background technology
Foam cement is through foamed system whipping agent fully to be foamed, and utilizing cement again is that gelling material admixture foam is through the formed a kind of novel light lagging material that contains a large amount of sealed porositys of natural curing.Answer in the engineering in building, the heat preserving and insulating material that foam cement can be used as non bearing structures such as roofing, body of wall, metope, ground uses, the excellent properties that have that unit weight is low, thermal and insulating performance good, sound insulation and noise reducing, anti-seismic performance reaches automatic adjusting humidity well.
Existing foam cement all exists the cost problem of higher in using and constructing; Gelling material generally adopts materials such as cement, terra alba in the batching; A large amount of uses of cement and terra alba have increased the cost of foam cement product, also are unfavorable for save energy and environment protection.Existing foam cement production cost is high, the production cycle is long, is unfavorable for the efficient utilization of equipment.In addition, the shortcoming of variable density up and down when this series products also exists foam instability, block forming aborning, the product early strength is low, and quality is unstable.
Summary of the invention
The present invention provides a kind of alkali slag foam cement product and preparation method thereof, solve the existing technical problem that the foam cement early strength is low, foam is unstable, production cost is high.
The technical solution adopted for the present invention to solve the technical problems is:
This alkali slag foam cement product, formulated by following raw materials by weight:
Alkali slag gel material 60～75%;
Compound additive 0.5～1%;
Water 16～25%;
Foam 8～15%.
Said alkali slag gel material is formulated by following raw materials by weight:
Slag powders 93.0～96.0%;
Water reducer 1.0～2.0%;
Alkalescence powder granule 2.0～5.0%.
Said foam is formulated by following raw materials by weight:
Whipping agent 2.0～4.0%;
Water 96.0～98.0%.
Said whipping agent is a tea saponin.
Said foamy tap density is 70～90kg/m
3
Said compound additive is made up of poly carboxylic acid powder and water-resisting agent, and the two components by weight percentage is following:
Poly carboxylic acid powder 60～70%;
Water-resisting agent 30～40%.
Said slag powders is that specific surface area is greater than 400m
2/ kg, activity index reaches the requirement of standard GB/T18046 more than or equal to 95%.
Said water reducer is a polycarboxylic acids high efficiency plasticising water reducer.
Said alkaline powder granule is water glass, sodium hydroxide or Pottasium Hydroxide powder particle.
The modulus of said water glass is: 1.1～1.5; Sodium hydroxide and Pottasium Hydroxide powder particulate purity >=90.0%.
The preparation method of this alkali slag foam cement product, preparation process is following:
Step 1 is stirred into mixed powder with slag powders, water reducer and compound additive by proportioning;
Step 2 joins alkaline powder granule and water mixing and stirring in the mixed powder, stirs into slurry;
Step 3; According to the density requirements that finished product reached, confirm to add lather volume, converse the weight of required whipping agent and water again according to lather volume; Whipping agent and water are mixed by weight percentage; Process foam through foaming machine, foam is spiked in the slurry stirs again, newly mixed the foam cement slurry;
Step 4 will newly be mixed foam cement slurry casting, obtain alkali slag foam cement product, and the dried apparent density of goods is smaller or equal to 900 kg/m
3, ultimate compression strength more than or equal to 1.5Mpa, thermal conductivity smaller or equal to 0.24 W/ (mK), time of coagulation less than 8h.
Beneficial effect of the present invention is following:
The present invention mainly starts with from the change of foam cement gelling system, addresses the cost of foam cement and the problem that the quality aspect exists.Prescription adopts generally as the slag powders of industrial waste and alkaline powder granule as the gelling material of foam cement, replaces cement, can reduce the production cost of foam cement greatly, helps environmental protection.The alkaline powder granule that adds is can activated slag active, makes slag powder homodisperse in alkaline aqueous solution, and vitreous state silica network dissociates rapidly, improves scoriaceous hydration rate and early strength.Rapid reaction and solidified gelling system can improve the homogeneity of plasticity slurry, make equal National standard of its ultimate compression strength, thermal conductivity and time of coagulation.In addition, adding water reducer can reduce the mixing water amount, improve product strength.
Foam of the present invention is that whipping agent is processed through physical blowing; Whipping agent is a tea saponin; Tea saponin is a kind of well behaved natural surface active agent, has good emulsifying, dispersion, foaming, function such as moistening, is used for cement blowing agent to use; Can in system, form even, stable foam, improve the quality product of foam cement.
The compound additive that the present invention adopts is to be composited by poly carboxylic acid powder, water-resisting agent; Have water conservation, regulate effect such as time of coagulation; Can improve the powerful performance and the heat-insulating property learned morning of foam cement, shorten time of coagulation, enhance productivity when reducing cost.
Performance Detection data of the present invention such as following table:
Visible by last table, ultimate compression strength of the present invention is bigger, and heat-insulating property is good, and combustionproperty meets material of construction concerned countries standard.The present invention can also can stir and make directly cast of back in the factory process moulding at the scene, can be used as non-load bearing wall building block, ground heating thermal insulation layer, the roofing heat-insulating layer of buildings, or is used for the preparing various kinds lagging material.
Embodiment
Embodiment one, and alkali slag gel material, compound additive, foam and water components by weight percentage are following:
Alkali slag gel material 60%;
Compound additive 0.5%;
Foam 14.5%;
Water 25%.
Embodiment two, and alkali slag gel material, compound additive, foam and water components by weight percentage are following:
Alkali slag gel material 65%;
Compound additive 0.7%;
Foam 12.3%;
Water 22%.
Embodiment three, and alkali slag gel material, compound additive, foam and water components by weight percentage are following:
Alkali slag gel material 70%;
Compound additive 0.8%;
Foam 9.2%;
Water 20%.
Embodiment four, and alkali slag gel material, compound additive, foam and water components by weight percentage are following:
Alkali slag gel material 75%;
Compound additive 0.6%;
Foam 8.4%;
Water 16%.
In the foregoing description one to four, the alkali slag gel material can be to be formed by following raw materials by weight proportioning,
Slag powders 93%;
Water reducer 2%;
Alkalescence powder granule 5%.
In the foregoing description one to four, the alkali slag gel material can be to be formed by following raw materials by weight proportioning,
Slag powders 94%;
Water reducer 1.6%;
Alkalescence powder granule 4.4%.
In the foregoing description one to four, the alkali slag gel material can be to be formed by following raw materials by weight proportioning,
Slag powders 95%;
Water reducer 1.3%;
Alkalescence powder granule 3.7%.
In the foregoing description one to four, the alkali slag gel material can be to be formed by following raw materials by weight proportioning,
Slag powders 96%;
Water reducer 1%;
Alkalescence powder granule 3%.
In the foregoing description one to four, foam can be to be formed by following raw materials by weight proportioning,
Whipping agent 2%;
Water 98%.
In the foregoing description one to four, foam can be to be formed by following raw materials by weight proportioning,
Whipping agent 2.5%;
Water 97.5%.
In the foregoing description one to four, foam can be to be formed by following raw materials by weight proportioning,
Whipping agent 3%;
Water 97%.
In the foregoing description one to four, foam can be to be formed by following raw materials by weight proportioning,
Whipping agent 4%;
Water 96%.
In the foregoing description one to four, compound additive can be to be formed by following raw materials by weight proportioning,
Poly carboxylic acid powder 65%;
Water-resisting agent 35%.
In the foregoing description one to four, compound additive can be to be formed by following raw materials by weight proportioning,
Poly carboxylic acid powder 70%;
Water-resisting agent 30%.
In the foregoing description one to four, compound additive can be to be formed by following raw materials by weight proportioning,
Poly carboxylic acid powder 60%;
Water-resisting agent 40%.
In the foregoing description one to four, whipping agent is a tea saponin, and the foamy tap density is 70～90kg/m
3
In the foregoing description one to four, water reducer is a polycarboxylic acids high efficiency plasticising water reducer.
In the foregoing description one to four, alkaline powder granule is water glass, sodium hydroxide or Pottasium Hydroxide powder particle.The modulus of water glass is: 1.1～1.5; Sodium hydroxide and Pottasium Hydroxide powder particulate purity >=90.0%.
In the foregoing description one to four, the alkali slag is all from the inferior prosperous slag micropowder in Chengdu ltd, specific surface area 420 ㎡/㎏, activity index is 95.6%, chemical ingredients (%) as follows:
| CaO | SiO 2 | Al 2O 3 | Fe 2O 3 | MgO | TiO 2 | K 2O | Na 2O |
| 44.14 | 32.42 | 13.34 | 1.33 | 3.52 | 1.05 | 0.58 | 0.31 |
The preparation method of this alkali slag foam cement product, preparation process is following:
Step 1 is stirred into mixed powder with slag powders, water reducer and compound additive by proportioning;
Step 2 joins alkaline powder granule and water mixing and stirring in the mixed powder, stirs into slurry;
Step 3; According to the density requirements that finished product reached, confirm to add lather volume, converse the weight of required whipping agent and water again according to lather volume; Whipping agent and water are mixed by weight percentage; Process foam through foaming machine, foam is spiked in the slurry stirs again, newly mixed the foam cement slurry;
Step 4 will newly be mixed foam cement slurry casting, obtain alkali slag foam cement product, and the dried apparent density of goods is smaller or equal to 900 kg/m
3, ultimate compression strength more than or equal to 1.5Mpa, thermal conductivity smaller or equal to 0.24 W/ (mK), time of coagulation less than 8h.
Claims (10)
1. alkali slag foam cement product is characterized in that: formulated by following raw materials by weight:
Alkali slag gel material 60～75%;
Compound additive 0.5～1%;
Water 16～25%;
Foam 8～15%;
Said alkali slag gel material is formulated by following raw materials by weight:
Slag powders 93.0～96.0%;
Water reducer 1.0～2.0%;
Alkalescence powder granule 2.0～5.0%.
2. alkali slag foam cement product according to claim 1 is characterized in that: said foam is formulated by following raw materials by weight:
Whipping agent 2.0～4.0%;
Water 96.0～98.0%.
3. alkali slag foam cement product according to claim 2 is characterized in that: said whipping agent is a tea saponin.
4. alkali slag foam cement product according to claim 2 is characterized in that: said foamy tap density is 70～90kg/m
3
5. alkali slag foam cement product according to claim 1, it is characterized in that: said compound additive is made up of poly carboxylic acid powder and water-resisting agent, and the two components by weight percentage is following:
Poly carboxylic acid powder 60～70%;
Water-resisting agent 30～40%.
6. alkali slag foam cement product according to claim 1 is characterized in that: said slag powders is that specific surface area is greater than 400m
2/ kg, activity index reaches the requirement of standard GB/T18046 more than or equal to 95%.
7. alkali slag foam cement product according to claim 1 is characterized in that: said water reducer is a polycarboxylic acids high efficiency plasticising water reducer.
8. alkali slag foam cement product according to claim 1 is characterized in that: said alkaline powder granule is water glass, sodium hydroxide or Pottasium Hydroxide powder particle.
9. alkali slag foam cement product according to claim 8, it is characterized in that: the modulus of said water glass is: 1.1～1.5; Sodium hydroxide and Pottasium Hydroxide powder particulate purity >=90.0%.
10. preparation method like any said alkali slag foam cement product of claim 1～9 is characterized in that preparation process is following:
Step 1 is stirred into mixed powder with slag powders, water reducer and compound additive by proportioning;
Step 2 joins alkaline powder granule and water mixing and stirring in the mixed powder, stirs into slurry;
Step 3; According to the density requirements that finished product reached, confirm to add lather volume, converse the weight of required whipping agent and water again according to lather volume; Whipping agent and water are mixed by weight percentage; Process foam through foaming machine, foam is spiked in the slurry stirs again, newly mixed the foam cement slurry;
Step 4 will newly be mixed foam cement slurry casting, obtain alkali slag foam cement product, and the dried apparent density of goods is smaller or equal to 900 kg/m
3, ultimate compression strength more than or equal to 1.5Mpa, thermal conductivity smaller or equal to 0.24 W/ (mK), time of coagulation less than 8h.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193274A (en) * | 2014-08-28 | 2014-12-10 | 重庆大学 | Alkali slag foamed concrete |
| CN105669237A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | High-sulphate-resistance cement foam concrete and preparation method thereof |
| CN105669236A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | Alkali-activated slag foamed concrete material and preparation method thereof |
| CN106045433A (en) * | 2016-06-03 | 2016-10-26 | 福州大学 | One-component alkali-activated nickel slag cement and preparation and application method thereof |
| CN106414361A (en) * | 2014-06-06 | 2017-02-15 | 拉法基公司 | Ultra-light mineral foam and method for producing same |
| CN108046826A (en) * | 2017-12-18 | 2018-05-18 | 固岩科技发展有限公司 | A kind of production method based on slag gel material building block |
| CN109748599A (en) * | 2019-02-21 | 2019-05-14 | 西安理工大学 | A kind of lightweight alkali-activated slag thermal insulation material and preparation method thereof |
| CN113603386A (en) * | 2021-08-24 | 2021-11-05 | 重庆大学 | Low-density alkali slag cement foam concrete chemical foaming agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060566A (en) * | 2010-12-16 | 2011-05-18 | 辽宁际洲环保节能建材有限公司 | High-performance foaming cement and preparation method thereof |
-
2012
- 2012-06-29 CN CN2012102210490A patent/CN102731048A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060566A (en) * | 2010-12-16 | 2011-05-18 | 辽宁际洲环保节能建材有限公司 | High-performance foaming cement and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 中华人民共和国质量监督检验检疫总局等: "《中华人民共和国国家标准 蒸压加气混凝土砌块 GB11968-2006》", 30 September 2006, 中国标准出版社 * |
| 师昌绪等: "《材料科学与工程手册（下卷）》", 31 January 2004, 化学工业出版社等 * |
| 张彩文等: "轻质碱-矿渣水泥砌块制造工艺探讨", 《新型墙体材料与施工》 * |
| 李峰: "发泡水泥材料的研究进展", 《混凝土》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106414361A (en) * | 2014-06-06 | 2017-02-15 | 拉法基公司 | Ultra-light mineral foam and method for producing same |
| CN104193274A (en) * | 2014-08-28 | 2014-12-10 | 重庆大学 | Alkali slag foamed concrete |
| CN104193274B (en) * | 2014-08-28 | 2016-05-11 | 重庆大学 | Alkali slag foamed concrete |
| CN105669237A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | High-sulphate-resistance cement foam concrete and preparation method thereof |
| CN105669236A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | Alkali-activated slag foamed concrete material and preparation method thereof |
| CN106045433A (en) * | 2016-06-03 | 2016-10-26 | 福州大学 | One-component alkali-activated nickel slag cement and preparation and application method thereof |
| CN106045433B (en) * | 2016-06-03 | 2018-02-09 | 福州大学 | A kind of one-component alkali-activated carbonatite nickel slag cement and its preparation and application |
| CN108046826A (en) * | 2017-12-18 | 2018-05-18 | 固岩科技发展有限公司 | A kind of production method based on slag gel material building block |
| CN109748599A (en) * | 2019-02-21 | 2019-05-14 | 西安理工大学 | A kind of lightweight alkali-activated slag thermal insulation material and preparation method thereof |
| CN109748599B (en) * | 2019-02-21 | 2021-10-22 | 西安理工大学 | Light alkali slag heat-insulating material and preparation method thereof |
| CN113603386A (en) * | 2021-08-24 | 2021-11-05 | 重庆大学 | Low-density alkali slag cement foam concrete chemical foaming agent and preparation method thereof |
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Application publication date: 20121017 |