CN101723632A - A kind of preparation technology of load-bearing foam concrete block - Google Patents
A kind of preparation technology of load-bearing foam concrete block Download PDFInfo
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- CN101723632A CN101723632A CN200910175485A CN200910175485A CN101723632A CN 101723632 A CN101723632 A CN 101723632A CN 200910175485 A CN200910175485 A CN 200910175485A CN 200910175485 A CN200910175485 A CN 200910175485A CN 101723632 A CN101723632 A CN 101723632A
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Abstract
The invention relates to a process for preparing load-bearing foam concrete blocks. The preparation process comprises the following steps of: metering 10 to 60 parts of mine tailing, 0 to 60 parts of pulverized fuel ash, 0 to 40 parts of slag, 20 to 60 parts of cement, 0.1 to 1 part of excitant and 0 to 0.6 part of fibre in proportion and then mixing the materials uniformly; adding water in a water-solid ratio of between 0.38 and 0.48 and stirring the mixture into an uniform slurry; then, adding vesicant foams prepared in advance and stirring continuously to ensure that the foams are uniformly dispersed in the slurry; moulding by casting and maintaining the blocks at room temperature for 16 to 48 hours; and maintaining the blocks after demoulding at the normal temperature for 28 days or in steam at a temperature between 60 and 100 DEG C for 8 to 24 hours to prepare the load-bearing foam concrete blocks. The load-bearing foam concrete blocks have good heat preservation property, high intensity and light weight, meet the standard of Foam Concrete Block JC/T 1062-2007, and are a novel heat preservation wall material for replacing common solid bricks.
Description
Technical field
The present invention relates to industry and mining by products such as a kind of employing mine tailing, flyash, slag, make the technology of the load-bearing foam concrete blocks of materials for walls such as being used for alternative solid brick, building block.
Background technology
Along with the increase year by year of China's new building area, building energy consumption also increases thereupon.1978, the ratio of China's building energy consumption account terminal total energy consumption was to rise in 10%, 2008 year to account for 27.5% of national terminal total energy consumption, and rate of growth is very fast.China had revised " covil construction energy-saving design standard " in 2005, and had issued " utilities building energy-saving design standard ", required new building must reach 50% fractional energy savings, and 2010 annual energy-saving rates will reach 65%.Simultaneously, along with the propelling of China " taboo is real " and energy-saving and emission-reduction policy, the trend of the times of low-carbon economy, green economy, the lighting of material of construction, low environmental load and heat preservation energy-saving become the important development direction of current material of construction.
Foamed concrete has light weight, characteristics that thermal and insulating performance is good, is a kind of material of construction of excellent property.The thermal conductivity of foamed concrete is 0.08W/ (mK)～0.27W/ (mK), is 1/8～1/3 of solid brick, and weight is lighter relatively, and good heat preservation performance can reduce the buildings deadweight again.Bearing type foam concrete block apparent density 800kg/m wherein
3More than, more than the intensity 8MPa, can replace solid brick such as clay brick and be used for individual layer and tier building, improve the heat-insulating property of building, reducing building energy consumption, is the important development direction of the current material of construction of the lighting, low environmental load and the heat preservation energy-saving that meet material of construction.
Summary of the invention
Technical problem to be solved by this invention provides a kind of by products such as mine tailing, flyash that make and gets utilization, to reduce pollution, reduction building energy consumption, meet the preparation technology of the load-bearing foam concrete blocks of material of construction lighting, low environmental load and heat preservation energy-saving to environment.
The present invention adopts following technical scheme:
The present invention adopts following ratio of weight and number component: 10 parts～60 parts of mine tailings, 0 part～60 parts in flyash, 0 part～40 parts in slag, 20 parts～60 parts of cement, 0.1 part～1 part of exciting agent, 0 part～0.6 part of fiber, 0.07 part～0.5 part of whipping agent, water-solid ratio 0.38～0.46, its step of preparation process is as follows: with 10 parts～60 parts mine tailing, and 0 part～60 parts flyash, 0 part～40 parts slag, 20 parts～60 parts cement, 0.1 part～1 part exciting agent, 0 part～0.6 part fiber, each material mixes after measuring in proportion, by water-solid ratio is 0.38～0.48 to add entry and stir into distributed slurry, add previously prepared whipping agent foam then, continue stirring and make foam be dispersed in the slip casting, building block is in normal temperature maintenance 16 hours～48 hours, after the form removal normal temperature maintenance to 28 day or in 60 ℃～100 ℃ steam maintenance promptly made in 8 hours～24 hours.
Exciting agent of the present invention is made up of following ratio of weight and number: 10 parts～50 parts of water glass, 20 parts～60 parts in sodium sulfate, 1 part～10 parts of naphthalene water reducers.
Flyash of the present invention is for meeting the dried ash discharge of the above class requirement of II level in " silicate building products flyash ".
Mine tailing of the present invention is iron ore mine, copper mining tailing or gold tailings, the mine tailing size-grade distribution be 2.5mm～0.6mm account for 0%～2.0%, 0.6mm～0.3mm accounts for 14%～22%, 0.3mm～0.088mm accounts for 50%～60%, accounts for 25%～30% less than 0.088mm.
Fiber of the present invention is that the fiber that is suitable for silicate cement is alkali resistant glass fibre or polypropylene fibre, and staple length is at 2mm～6mm.
Slag of the present invention is that grinding to specific surface area is 350m
2The blast furnace slag that/kg is above.
Cement of the present invention is that strength grade is that Portland blast more than 32.5 or composite Portland cement and strength grade are ordinary Portland cement or the aluminosulfate cement more than 42.5.
The invention has the beneficial effects as follows: the present invention is directed to the nature and characteristic of materials such as flyash, mine tailing, slag, is main gelling material with cement, adds materials such as admixture, foam, by low temperature reservation, and preparation bearing type foam concrete block.Block insulation of the present invention is good, intensity is high, weight is little, meet " foam concrete block JC/T 1062-2007 " standard, it is the New-type heat insulating walling material that substitutes common solid brick, the load larrying member that can be used for individual layer and tier building, both solve the recycling problem of solid slag, reduced useless admittedly land occupation and environmental pollution again.
The every The performance test results of foam concrete block of the present invention is:
(1) apparent density: 800kg/m
3～1400kg/m
3
(2) ultimate compression strength: 8MPa～14MPa;
(3) thermal conductivity: 0.21W/ (mK)～0.27W/ (mK);
(4) drying shrinkage value: 0.74～0.87mm/m;
(5) carbonization coefficient: 0.85～0.97.
Embodiment
Below principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Divide three embodiment that the technology of bearing type foam concrete block of the present invention is described in further detail below.
Embodiment one:
Table 1 material proportion
| Composition | Weight part |
| Copper mining tailing | ??30 |
| II level flyash | ??24 |
| Slag powders | ??15 |
| 32.5 Portland blast | ??30 |
| Exciting agent | ??0.9 |
| Whipping agent (CCW-95) | ??0.1 |
Powder is weighed in proportion and is added water and stir and to make slip, and water-solid ratio is 0.41; Wherein the exciting agent weight ratio is: 40 parts of water glass, 50 parts in sodium sulfate, 10 parts of naphthalene water reducers.70 times of whipping agent (CCW-95) thin ups are made even foam with foaming machine; With slip and foams mix evenly after, casting, with 80 ℃ of vapor cures, maintenance 18 hours is lowered the temperature naturally and is promptly made in curing kilns for foam concrete block normal temperature maintenance form removal after 24 hours, building block.Exciting agent is made up of following ratio of weight and number: 50 parts of water glass, 45 parts in sodium sulfate, 10 parts of naphthalene water reducers.Mine tailing is a copper mining tailing, the mine tailing size-grade distribution be 2.5mm～0.6mm account for 2.0%, 0.6mm～0.3mm accounts for 18%, 0.3mm～0.088mm accounts for 55%, accounts for 25% less than 0.088mm.
Whipping agent of the present invention is a synthesized polymer material class concrete foaming agent, and described whipping agent foam is to adopt 70 times of whipping agent CCW-95 thin ups, makes uniform foam with foaming machine.
Naphthalene water reducer is water-reducing rate 〉=15%, and the pH value is 7-9, and flowing degree of net paste of cement is 220mm, meets GB8076 " mixing the earth admixture " standard-required, and foam concrete block ultimate compression strength 12.3MPa does apparent density 1128kg/m
3, thermal conductivity 0.25W/ (mW).
Embodiment two:
Table 2 material proportion:
| Composition | Weight part |
| Gold tailings | ??50 |
| II level flyash | ??12 |
| Slag powders | ??10 |
| 32.5 composite Portland cement | ??27 |
| Exciting agent | ??0.7 |
| Polypropylene fibre | ??0.2 |
| Whipping agent (CCW-95) | ??0.1 |
Powder is weighed in proportion and is added water and stir and to make slip, and water-solid ratio is 0.44; Wherein exciting agent consists of: water glass 10, sodium sulfate 30, naphthalene water reducer 2.70 times of whipping agent thin ups are made even foam with foaming machine; With slip and foams mix evenly after, casting, with 80 ℃ of vapor cures, maintenance 18 hours is lowered the temperature naturally and is promptly made in curing kilns for foam concrete block normal temperature maintenance form removal after 24 hours, building block.Exciting agent is made up of following ratio of weight and number: 25 parts of water glass, 20 parts in sodium sulfate, 1 part of naphthalene water reducer.Mine tailing is a gold tailings, the mine tailing size-grade distribution be 2.5mm～0.6mm account for 1%, 0.6mm～0.3mm accounts for 14%, 0.3mm～0.088mm accounts for 55%, accounts for 30% less than 0.088mm.Fiber is that the fiber that is suitable for silicate cement is a polypropylene fibre, and staple length is at 6mm.
Whipping agent of the present invention is a synthesized polymer material class concrete foaming agent, and described whipping agent foam is to adopt 70 times of whipping agent CCW-95 thin ups, makes uniform foam with foaming machine.
Naphthalene water reducer is water-reducing rate 〉=15%, and the pH value is 7-9, and flowing degree of net paste of cement is 220mm, meets GB8076 " mixing the earth admixture " standard-required, and foam concrete block ultimate compression strength 13.6MPa does apparent density 1265kg/m
3, thermal conductivity 0.28W/ (mW).
Embodiment three:
Table 3 material proportion:
| Composition | Weight part |
| Iron ore mine | ??50 |
| II level flyash | ??12 |
| Slag powders | ??7.01 |
| Aluminosulfate cement | ??30 |
| Exciting agent | ??0.6 |
| Alkali resistant glass fibre | ??0.3 |
| Whipping agent (CCW-95) | ??0.09 |
Powder is weighed in proportion and is added water and stir and to make slip, and water-solid ratio is 0.43; Wherein exciting agent consists of: water glass 40, sodium sulfate 50, naphthalene water reducer 10.70 times of whipping agent thin ups are made even foam with foaming machine; With slip and foams mix evenly after, casting, foam concrete block normal temperature maintenance form removal after 16 hours day is promptly made in normal temperature maintenance to 28.Exciting agent is made up of following ratio of weight and number: 10 parts of water glass, 60 parts in sodium sulfate, 5 parts of naphthalene water reducers.Mine tailing be iron ore mine, mine tailing size-grade distribution be 2.5mm～0.6mm account for 1%, 0.6mm～0.3mm accounts for 17%, 0.3mm～0.088mm accounts for 57%, accounts for 25% less than 0.088mm.Fiber is that the fiber that is suitable for silicate cement is an alkali resistant glass fibre, and staple length is at 2mm.
Whipping agent of the present invention is a synthesized polymer material class concrete foaming agent, and described whipping agent foam is to adopt 70 times of whipping agent CCW-95 thin ups, makes uniform foam with foaming machine.
Naphthalene water reducer is water-reducing rate 〉=15%, and the pH value is 7-9, and flowing degree of net paste of cement is 220mm, meets GB8076 " mixing the earth admixture " standard-required, and foam concrete block ultimate compression strength 12.5MPa does apparent density 956kg/m
3, thermal conductivity 0.23W/ (mW).
Claims (7)
1. the preparation technology of a load-bearing foam concrete blocks, it is characterized in that adopting following ratio of weight and number component: 10 parts～60 parts of mine tailings, 0 part～60 parts in flyash, 0 part～40 parts in slag, 20 parts～60 parts of cement, 0.1 part～1 part of exciting agent, 0 part～0.6 part of fiber, 0.07 part～0.5 part of whipping agent, water-solid ratio 0.38～0.46, its step of preparation process is as follows: with 10 parts～60 parts mine tailing, 0 part～60 parts flyash, 0 part～40 parts slag, 20 parts～60 parts cement, 0.1 part～1 part exciting agent, 0 part～0.6 part fiber, each material mixes after measuring in proportion, is 0.38～0.48 to add entry and stir into distributed slurry by water-solid ratio, adds previously prepared whipping agent foam then, continuing to stir is dispersed in the slip foam, casting, building block be in normal temperature maintenance 16 hours～48 hours, after the form removal normal temperature maintenance to 28 day or in 60 ℃～100 ℃ steam maintenance promptly made in 8 hours～24 hours.
2. the preparation technology of a kind of load-bearing foam concrete blocks according to claim 1 and 2, it is characterized in that described exciting agent is made up of following ratio of weight and number: 10 parts～50 parts of water glass, 20 parts～60 parts in sodium sulfate, 1 part～10 parts of naphthalene water reducers.
3. the preparation technology of a kind of load-bearing foam concrete blocks according to claim 1 and 2 is characterized in that described flyash is for meeting the dried ash discharge of the above class requirement of II level in " silicate building products flyash ".
4. the preparation technology of a kind of load-bearing foam concrete blocks according to claim 1 and 2, it is characterized in that described mine tailing is iron ore mine, copper mining tailing or gold tailings, the mine tailing size-grade distribution be 2.5mm～0.6mm account for 0%～2.0%, 0.6mm～0.3mm accounts for 14%～22%, 0.3mm～0.088mm accounts for 50%～60%, accounts for 25%～30% less than 0.088mm.
5. the preparation technology of a kind of load-bearing foam concrete blocks according to claim 1 and 2 is characterized in that described fiber is that the fiber that is suitable for silicate cement is alkali resistant glass fibre or polypropylene fibre, and staple length is at 2mm～6mm.
6. the preparation technology of a kind of load-bearing foam concrete blocks according to claim 1 and 2 is characterized in that described slag is that grinding to specific surface area is 350m
2The blast furnace slag that/kg is above.
7. the preparation technology of a kind of load-bearing foam concrete blocks according to claim 1 and 2 is characterized in that described cement is that strength grade is that Portland blast more than 32.5 or composite Portland cement and strength grade are ordinary Portland cement or the aluminosulfate cement more than 42.5.
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| CN200910175485A CN101723632A (en) | 2009-11-23 | 2009-11-23 | A kind of preparation technology of load-bearing foam concrete block |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913900A (en) * | 2010-08-26 | 2010-12-15 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
| CN102491708A (en) * | 2011-12-01 | 2012-06-13 | 任聪 | Processing method of fly ash cement foam solid board |
| CN102503272A (en) * | 2011-11-01 | 2012-06-20 | 王峰 | Continuous production method for foam concrete |
| CN102627470A (en) * | 2012-04-26 | 2012-08-08 | 鞍钢集团矿业公司 | Lean hematite tailing concrete light body building block brick and preparation method thereof |
| CN102674771A (en) * | 2012-05-18 | 2012-09-19 | 大连理工大学 | A kind of wave-absorbing foam concrete mixed with high iron slag powder and its preparation method |
| CN102826799A (en) * | 2012-08-13 | 2012-12-19 | 南阳师范学院 | Environment-friendly heat and sound insulating fireproof lightweight wall material |
| CN102875088A (en) * | 2012-09-28 | 2013-01-16 | 李春普 | Porous lightweight slag brick |
| CN103113067A (en) * | 2013-03-11 | 2013-05-22 | 江西中科新建材有限公司 | Method for cast-in-place preparation of foamed concrete by comprehensively utilizing waste wood flour |
| CN103360104A (en) * | 2013-06-27 | 2013-10-23 | 永升建设集团有限公司 | Expanded and vitrified small ball-fiber reinforced foamed concrete |
| CN103496920A (en) * | 2013-09-25 | 2014-01-08 | 厦门市建筑科学研究院集团股份有限公司 | Foam concrete block as well as production method thereof |
| CN103508711A (en) * | 2012-06-28 | 2014-01-15 | 沈阳红姗石建筑装饰材料有限公司 | High-performance foam concrete insulation board and preparation method thereof |
| CN104402348A (en) * | 2014-10-23 | 2015-03-11 | 天元建设集团有限公司 | Iron tailing powder foam concrete and preparation method thereof |
| CN104446223A (en) * | 2014-12-18 | 2015-03-25 | 无锡伊诺永利文化创意有限公司 | High-strength concrete building block |
| CN105236895A (en) * | 2015-10-27 | 2016-01-13 | 黑龙江科技大学 | High-performance gold tailing sand concrete |
| CN108059430A (en) * | 2017-12-20 | 2018-05-22 | 河北科技大学 | A kind of steam pressure foam concrete production technology based on carbon dioxide discharge-reduction |
| CN108947563A (en) * | 2018-09-07 | 2018-12-07 | 邢台禹神新型建筑材料有限公司 | Cellular concrete product and preparation method thereof |
| CN110452015A (en) * | 2019-09-05 | 2019-11-15 | 张建华 | A kind of high strength foam concrete and preparation method thereof |
| CN110511056A (en) * | 2019-09-05 | 2019-11-29 | 许言言 | A kind of foam concrete block and preparation method thereof |
| CN110650934A (en) * | 2017-03-06 | 2020-01-03 | 建筑研究和技术有限公司 | Inorganic foam based on calcium sulfoaluminate |
| CN111170758A (en) * | 2018-11-09 | 2020-05-19 | 河南华泰新材科技股份有限公司 | Foam concrete, preparation method and application thereof |
| CN111377667A (en) * | 2020-04-03 | 2020-07-07 | 沈阳促晋科技有限公司 | Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof |
| CN112900174A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Soft foundation replacement structure and construction method thereof |
| CN112900175A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Road widening structure and construction method thereof |
| CN113001714A (en) * | 2021-02-10 | 2021-06-22 | 河南科技大学 | A method for preparing foamed concrete blocks using gold tailings as main raw materials |
| CN115259795A (en) * | 2022-08-09 | 2022-11-01 | 武汉理工大学 | Preparation method of muck-based foam concrete building block |
| CN115536317A (en) * | 2022-10-31 | 2022-12-30 | 湖南省城乡环境建设有限公司 | Fly ash-gold tailing-aerogel-based composite thermal insulation material and preparation method thereof |
| CN118439832A (en) * | 2024-05-30 | 2024-08-06 | 灵宝黄金投资有限责任公司 | Homogeneous self-insulation building block with gold tailings as raw material and preparation method thereof |
-
2009
- 2009-11-23 CN CN200910175485A patent/CN101723632A/en active Pending
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| CN101913900B (en) * | 2010-08-26 | 2012-07-04 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
| CN101913900A (en) * | 2010-08-26 | 2010-12-15 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
| CN102503272A (en) * | 2011-11-01 | 2012-06-20 | 王峰 | Continuous production method for foam concrete |
| CN102491708A (en) * | 2011-12-01 | 2012-06-13 | 任聪 | Processing method of fly ash cement foam solid board |
| CN102491708B (en) * | 2011-12-01 | 2013-06-19 | 任聪 | Processing method of fly ash cement foam solid board |
| CN102627470A (en) * | 2012-04-26 | 2012-08-08 | 鞍钢集团矿业公司 | Lean hematite tailing concrete light body building block brick and preparation method thereof |
| CN102674771A (en) * | 2012-05-18 | 2012-09-19 | 大连理工大学 | A kind of wave-absorbing foam concrete mixed with high iron slag powder and its preparation method |
| CN102674771B (en) * | 2012-05-18 | 2013-11-06 | 大连理工大学 | A kind of wave-absorbing foam concrete mixed with high iron slag powder and its preparation method |
| CN103508711A (en) * | 2012-06-28 | 2014-01-15 | 沈阳红姗石建筑装饰材料有限公司 | High-performance foam concrete insulation board and preparation method thereof |
| CN103508711B (en) * | 2012-06-28 | 2015-10-28 | 沈阳红姗石建筑装饰材料有限公司 | A kind of High-performance foam concrete insulation board and preparation method thereof |
| CN102826799A (en) * | 2012-08-13 | 2012-12-19 | 南阳师范学院 | Environment-friendly heat and sound insulating fireproof lightweight wall material |
| CN102875088A (en) * | 2012-09-28 | 2013-01-16 | 李春普 | Porous lightweight slag brick |
| CN103113067A (en) * | 2013-03-11 | 2013-05-22 | 江西中科新建材有限公司 | Method for cast-in-place preparation of foamed concrete by comprehensively utilizing waste wood flour |
| CN103360104A (en) * | 2013-06-27 | 2013-10-23 | 永升建设集团有限公司 | Expanded and vitrified small ball-fiber reinforced foamed concrete |
| CN103496920A (en) * | 2013-09-25 | 2014-01-08 | 厦门市建筑科学研究院集团股份有限公司 | Foam concrete block as well as production method thereof |
| CN104402348A (en) * | 2014-10-23 | 2015-03-11 | 天元建设集团有限公司 | Iron tailing powder foam concrete and preparation method thereof |
| CN104446223A (en) * | 2014-12-18 | 2015-03-25 | 无锡伊诺永利文化创意有限公司 | High-strength concrete building block |
| CN105236895A (en) * | 2015-10-27 | 2016-01-13 | 黑龙江科技大学 | High-performance gold tailing sand concrete |
| CN110650934A (en) * | 2017-03-06 | 2020-01-03 | 建筑研究和技术有限公司 | Inorganic foam based on calcium sulfoaluminate |
| CN108059430A (en) * | 2017-12-20 | 2018-05-22 | 河北科技大学 | A kind of steam pressure foam concrete production technology based on carbon dioxide discharge-reduction |
| CN108059430B (en) * | 2017-12-20 | 2020-09-15 | 河北科技大学 | Autoclaved foam concrete production process based on carbon dioxide emission reduction |
| CN108947563A (en) * | 2018-09-07 | 2018-12-07 | 邢台禹神新型建筑材料有限公司 | Cellular concrete product and preparation method thereof |
| CN111170758A (en) * | 2018-11-09 | 2020-05-19 | 河南华泰新材科技股份有限公司 | Foam concrete, preparation method and application thereof |
| CN110511056A (en) * | 2019-09-05 | 2019-11-29 | 许言言 | A kind of foam concrete block and preparation method thereof |
| CN110452015A (en) * | 2019-09-05 | 2019-11-15 | 张建华 | A kind of high strength foam concrete and preparation method thereof |
| CN111377667A (en) * | 2020-04-03 | 2020-07-07 | 沈阳促晋科技有限公司 | Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof |
| CN112900174A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Soft foundation replacement structure and construction method thereof |
| CN112900175A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Road widening structure and construction method thereof |
| CN113001714A (en) * | 2021-02-10 | 2021-06-22 | 河南科技大学 | A method for preparing foamed concrete blocks using gold tailings as main raw materials |
| CN115259795A (en) * | 2022-08-09 | 2022-11-01 | 武汉理工大学 | Preparation method of muck-based foam concrete building block |
| CN115259795B (en) * | 2022-08-09 | 2023-05-12 | 武汉理工大学 | Preparation method of slag soil-based foam concrete block |
| CN115536317A (en) * | 2022-10-31 | 2022-12-30 | 湖南省城乡环境建设有限公司 | Fly ash-gold tailing-aerogel-based composite thermal insulation material and preparation method thereof |
| CN118439832A (en) * | 2024-05-30 | 2024-08-06 | 灵宝黄金投资有限责任公司 | Homogeneous self-insulation building block with gold tailings as raw material and preparation method thereof |
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Application publication date: 20100609 |