CN102633530A - Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash - Google Patents
Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash Download PDFInfo
- Publication number
- CN102633530A CN102633530A CN2012101484493A CN201210148449A CN102633530A CN 102633530 A CN102633530 A CN 102633530A CN 2012101484493 A CN2012101484493 A CN 2012101484493A CN 201210148449 A CN201210148449 A CN 201210148449A CN 102633530 A CN102633530 A CN 102633530A
- Authority
- CN
- China
- Prior art keywords
- fly ash
- calcium sulfur
- parts
- high calcium
- concrete building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash, which comprises the following steps: mixing 55-70 parts by weight of high-calcium sulfur-fixing fly ash, 5-20 parts by weight of common fly ash, 4-6 parts by weight of gypsum, 10-15 parts by weight of lime, 8-12 parts by weight of cement, 40-42 parts by weight of water and 0.06-0.08 part by weight of aluminum powder paste, casting, standing, cutting, carrying out autoclaved curing, and the like to obtain the finished product. The high-calcium sulfur-fixing fly ash and common fly ash are used for preparing the aerated concrete building blocks, thereby solving the technical problem in the process of producing aerated concrete building blocks from the high-calcium sulfur-fixing fly ash, and actively promoting the comprehensive utilization of the high-calcium sulfur-fixing fly ash. The invention can enhance the strength and bending resistance of the aerated concrete building blocks, lower the production cost, greatly improve the product quality and increase the product qualification rate.
Description
Technical field
The present invention relates to a kind of autoclave aerated concrete building block production technique, particularly a kind of production technique of producing air-entrained concrete building block with high calcium sulfur-fixing coal ash admixture ordinary fly ash.
Background technology
Air-entrained concrete building block be a kind of be that main raw material(s), aluminium powder cream are foaming agent with siliceous material (like silica sand, flyash etc.) and calcareous material (like cement, lime); Through the novel wall material that stirs, pours into a mould, gets angry, quietly stops, cutting, steam press maintenance form, be widely used in industry, civil building.Can do the bearing wall of general building structure median low structure, the interior wall of Highrise buildings, the inside and outside infilled wall or the Side fascia of skeleton construction.Characteristics such as air-entrained concrete building block has environmental protection, light weight, is prone to processing, sound insulation, heat insulation, insulation are the novel building energy-saving wall materials that country widelys popularize the instead of clay solid brick, and this makes air-entrained concrete building block obtain the high speed development.Be to adopt ordinary fly ash to produce air-entrained concrete building block at present mostly, but it is relatively poor not developed because of the chemically reactive of this flyash to utilize high calcium sulfur-fixing coal ash to produce air-entrained concrete building block.
The flyash that high calcium sulfur-fixing coal ash is to use the stove internal combustion sulfur removal technology of CFBC to be discharged.This is a kind of novel coal fired power generation technology, various inferior fuels of incendivity such as high-sulfur dirty coal, coal gangue, mud coal, mine tailing, slag etc.Since coal-fired wide adaptability, and in fire coal, added a certain proportion of limestone powder, making that the composition fluctuation of high calcium sulfur-fixing coal ash is bigger, comprehensive utilization is very limited.In addition; Because active silica in the high calcium sulfur-fixing coal ash, aluminium sesquioxide are all low than ordinary fly ash; Sulphur trioxide and calcium oxide content are then higher; If detect this flyash according to GB/T1596-2005 " flyash that is used for cement and concrete ", it will exceed standard and can not be used for cement and concrete because of higher sulfur trioxide content (>=3%), bring problem to the comprehensive utilization of high calcium sulfur-fixing coal ash.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high calcium sulfur-fixing coal ash admixture ordinary fly ash to produce air-entrained concrete building block technology; This technology has not only solved the technical barrier of high calcium sulfur-fixing coal ash production air-entrained concrete building block; For positive pushing effect is played in the comprehensive utilization of high calcium sulfur-fixing coal ash; Can increase simultaneously the product strength of air-entrained concrete building block, increase substantially quality product.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of high calcium sulfur-fixing coal ash admixture ordinary fly ash is produced air-entrained concrete building block technology.This technology is: according to weight proportion, make finished product by 55～70 parts of raw material high calcium sulfur-fixing coal ash, 5～20 parts of ordinary fly ashes, 4～6 parts in gypsum, 10～15 parts in lime, 8～12 parts of cement, 40～42 parts in water and 0.06～0.08 part of following production stage of process of aluminium powder cream:
(1) raw material is prepared: take by weighing high calcium sulfur-fixing coal ash, ordinary fly ash and gypsum by above-mentioned weight proportion, add the finish mix slurry of entry, store for use; Lump lime is broken into sends into the ball mill grinding behind the fritter of diameter less than 2cm and become 80 μ m to tail over lime powder ash, store for use less than 15%;
(2) batching stirs: take by weighing cement, aluminium powder cream by above-mentioned weight proportion, slip, lime powder ash in above-mentioned steps (1) stir, then cast; Teeming temperature is controlled between 40～50 ℃;
(3) quiet stopping: quiet stopping 1.5～2 hours behind the casting complete, get angry and blank forming;
(4) cutting: utilize the specification that steel wire cuts into to be needed;
(5) steam press maintenance: send into after cutting is accomplished and carry out maintenance in the autoclave.
Above-mentioned high calcium sulfur-fixing coal ash admixture ordinary fly ash is produced air-entrained concrete building block technology, and in the described step (3), quiet temperature of stopping the zone is controlled between 35～45 ℃.
Aforesaid high calcium sulfur-fixing coal ash admixture ordinary fly ash is produced air-entrained concrete building block technology; In the described step (5); Cutting is sent into maintenance in the autoclave after accomplishing; Through after 2～2.5 hours with vapor pressure be elevated to 1.1～1.2Mpa, temperature is elevated to 185～195 ℃, keep carrying out in 7～8 hours lowering the temperature again 1.5～2 hours behind the chemical reaction.
Flyash is divided into ordinary fly ash and high-calcium fly ass, and high-calcium fly ass is divided into high calcium low-sulfur flyash (SO again
3Content＜3%) and high calcium sulfur-fixing coal ash (SO
3Content>=3%), high calcium sulfur-fixing coal ash has following character: 1, SiO in the high calcium sulfur-fixing coal ash
2, CaO, SO
3Content does not all meet the technical requirements of producing the required flyash of air-entrained concrete building block, and content instability and deviation are very big, like CaO content between 9.28～24.57%, and SO
3All exceeded 10% with f-CaO, caused high calcium sulfur-fixing coal ash can not be used for cement and normal concrete; F-CaO is equivalent to the ashing of crossing in the lime as the dead roasting ash, and production has brought very big trouble to its swelling property to gas concrete, can cause like product quality defects such as truncation arrisdefects.2, the temperature of combustion of high calcium sulfur-fixing coal ash only contains the vitreum of trace below 900 ℃ in the high calcium sulfur-fixing coal ash, and Fe
2O
3Mainly exist with rhombohedral iron ore and magnetite form, high calcium sulfur-fixing coal ash rubicundity, and high calcium sulfur-fixing coal ash active substance very little makes the product produced also slower for chemical reaction red and when steam-cured.3, contain β-C in the high calcium sulfur-fixing coal ash
2S, C
3S, C
3Grogs such as A have the strong characteristics of self-hardening property, cause cast when getting angry multiviscosisty feel suffocated easily soon, phenomenon such as pipeline easy blocking.4, high calcium sulfur-fixing coal ash fineness is too thin, and 0.08mm square hole sieve screen over-size is all less than 1%, and the standard consistency water requirement is big; Slip is thick in process of production; Mobile poor, comprehensive ratio of water to material reaches 0.75, makes the lime consumption big; Steam-cured ventilation property is poor, the relatively poor relatively but stable mould that collapses that is difficult for of cast of base substrate appearance.
Above character to high calcium sulfur-fixing coal ash; The present invention utilizes the ordinary fly ash of high calcium sulfur-fixing coal ash and admixture and high calcium sulfur-fixing coal ash different in kind; Draw two kinds of flyash advantage, avoid both deficiency, successfully produced the air-entrained concrete building block of National standard.Through our company's autoclave aerated concrete building block production line scale operation test, existing average daily output can reach 600m
3/ d.Wherein total volume of two kinds of flyash has reached 73-78%, and all the other are gypsum, cement, lime.What of CaO content in the high calcium sulfur-fixing coal ash ratio row between two kinds of flyash can be regulated through, when CaO content in the high calcium sulfur-fixing coal ash surpasses 15%, should the ash volume be 80% of two kinds of total consumptions of flyash; When CaO content in the high calcium sulfur-fixing coal ash should can suitably increase by the ash volume less than 15% the time, even use fully, product each item index of producing meets the requirement of B06 level, and average unit weight is 570kg/m
3, mean compressive strength is 3.8MPa, qualification rate is sure to occupy more than 99%.
The performance of ordinary fly ash and effect thereof be as follows: 1, the technical requirements of all complete accords with production gas concrete of its physicals and chemical ingredients; Content reduces relatively in the component the inside in high calcium sulfur-fixing coal ash, can to make f-CaO behind this ash of admixture, also can reduce the self-hardening property of high calcium sulfur-fixing coal ash relatively.2, this flyash SiO
2, Al
2O
3, vitreum content is all higher, and is active good, can improve the reactive behavior of powder mix coal ash behind this ash of admixture to a certain extent, for the chemical reaction of base substrate when the steam press maintenance provides good condition.3, the standard consistency water requirement is little, the slip good fluidity of preparation, and the finished product gross blow hole of producing is few, any surface finish; Color is steady Steel Gray, and visual appearance is good, and comprehensive ratio of water to material is less than 0.4, but goods are more crisp; Fracture resistance is poor, is prone in the handling process produce loss, just in time combines the advantage of two kinds of flyash behind the admixture high calcium sulfur-fixing coal ash; The products appearance quality is good, and comprehensive ratio of water to material makes lime consumption obtain corresponding reduction about 0.6; And goods are not crisp, and fracture resistance is good, and the product loss is low.4, particle is thicker relatively, and 0.08mm square hole sieve screen over-size reaches 12%, can form certain grating with high calcium sulfur-fixing coal ash, and better action has been played in the raising of product strength.
Aspect the report that utilizes high calcium sulfur-fixing coal ash, mainly concentrate on aspects such as producing sulfate cement, cement mixture, molecular sieve, soil modifier, autoclaved brick at present.Even there is few part to use high calcium sulfur-fixing coal ash to produce gas concrete, but the f-CaO content of its used high calcium sulfur-fixing coal ash is usually 1%～3.6%, SO
3Content is 3%～7%, in the high calcium sulfur-fixing coal ash of the Bijie power & light company discharging used far below our company f-CaO content 1%～11.23%, SO
3Content is 4%～10%, and the easy truncation arrisdefect of its goods, also is not widely used at present.
Compared with prior art; The present invention has the following advantages: 1, solved and utilized the technical barrier of high calcium sulfur-fixing coal ash for the main material production autoclave aerated concrete building block; Successfully produce the autoclave aerated concrete building block of National standard, vetoed present high calcium sulfur-fixing coal ash and can not be used for the saying that gas concrete is produced.2, the flyash that differs through two kinds of thicknesses combines, and forms grain composition preferably, has improved the intensity of autoclave aerated concrete building block goods.3, compare with the air-entrained concrete building block that adopts ordinary fly ash production, the fold resistance of autoclave aerated concrete building block goods of the present invention strengthens, and makes not easy fracture of goods, has reduced the fracture waste product of goods in transportation, has improved product percent of pass.4, quicklime (CaO) can suitably reduce the consumption of lime and cement when content is higher in high calcium sulfur-fixing coal ash, has reduced production cost.5, utilizing high calcium sulfur-fixing coal ash to produce autoclave aerated concrete building block is a spotlight of comprehensive utilization of resources; High calcium sulfur-fixing coal ash can only be taked to stack because of not being used for cement and normal concrete, the form discharging of landfill; Become a kind of source of pollution, the present invention near 80%, not only can reduce the enterprise production cost to the consumption of high calcium sulfur-fixing coal ash and gypsum greatly; Be that enterprise creates rich profit, and will play the effect of actively promoting for the development of energy-saving and emission-reduction, recycling economy.
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Embodiment 1.As shown in Figure 1, make finished product according to following steps production:
(1) raw material is prepared: take by weighing 60 parts of high calcium sulfur-fixing coal ash, 15 parts of ordinary fly ashes, 5 parts in gypsum, add the finish mix slurry of entry, store for use; For block, 12 parts of lump limes be broken into send into the ball mill grinding behind the fritter of diameter less than 2cm to become 80 μ m to tail over less than 15% lime powder grey when unslaked lime enters factory, store for use.
(2) batching stirs: take by weighing 10 parts of cement, 0.07 part of aluminium powder cream, slip, lime powder ash in above-mentioned steps (1) stir, then cast; Teeming temperature is controlled between 40～50 ℃;
(3) quiet stopping: quiet stopping 1.5～2 hours behind the casting complete, get angry during this period and blank forming; Need quiet temperature of stopping the zone is controlled between 35～45 ℃.
(4) cutting: utilize the specification that steel wire cuts into to be needed;
(5) steam press maintenance: send into after cutting is accomplished and carry out maintenance in the autoclave, through after 2～2.5 hours with vapor pressure be elevated to 1.1～1.2Mpa, temperature is elevated to 185～195 ℃, keep carrying out in 7～8 hours lowering the temperature again 1.5～2 hours behind the chemical reaction.
The effect of each raw material and technical requirements are following among the present invention:
(1) lime: 1., the SiO in effective CaO and the flyash is provided
2Issuing biochemical water generation reaction thing at HTHP is that goods provide intensity, and for aluminium powder cream generates the hydrogen foaming alkalescence is provided with water reaction generation calcium hydroxide; 2., the lime hydration heat release impels the base substrate sclerosis.Table 1 is seen in its technical requirements.
Table 1
(2) cement: the effect of cement mainly provides calcareous material; Regulate the stability of cast; Base substrate plastic strength when the sclerosis of acceleration base substrate and cutting.Its technical requirements is the PO32.5 ordinary Portland cement that meets existing national standard.
(3) gypsum: the effect of gypsum is the intensity that improves base substrate.Owing to stop in the process quiet, generate aquation sulplo-aluminate (calcium) and C-S-H gel, make the ability to bear enhancing of base substrate appearance temperature difference stress and psychrometric difference stress in steaming the pressure process; Also can improve the intensity and reduction shrinkability of goods, improve frost resistance; Impel the speed of hydration reaction process, promote holder shellfish mullite to transform, form intensity; And suppress mirabilitum crystallina pomegranate and generate, make shrinkage value little; Also can suppress lime digestion, reduce digestion condition, delay slip multiviscosisty speed, delay cement setting speed.Table 2 is seen in its technical requirements.
Table 2
(4) aluminium powder cream: the effect of aluminium powder cream is to generate the hydrogen foaming with alkali reaction.Table 3 is seen in its technical requirements.
Table 3
(5) flyash: the effect of flyash provides the CaO water generation reaction thing in siliceous raw material and lime, the cement, improves product strength.Table 4 is seen in its technical requirements.
Table 4
| Project | Technical requirements |
| SiO 2 | ＞40％ |
| Al 2O 3 | 10-30％ |
| Fe 2O 3 | ＜10％ |
| CaO | ＜5％ |
| MgO | ＜2％ |
| SO 3 | ＜3％ |
| LOSS | ＜12％ |
| 80 μ m tail over | ＜20％ |
Flyash among the present invention has high calcium sulfur-fixing coal ash and ordinary fly ash, and its composition is seen table 5.
Table 5
The optimum proportion of materials that the present invention uses needs assign to confirm according to the one-tenth of all raw material, particularly the digestion time of CaO content in the high calcium sulfur-fixing coal ash and lime, temperature and effective CaO content.
Embodiment 2.As shown in Figure 1, make finished product according to following steps production:
(1) raw material is prepared: take by weighing 55 parts of high calcium sulfur-fixing coal ash, 5 parts of ordinary fly ashes, 4 parts in gypsum, add the finish mix slurry of entry, store for use; For block, 10 parts of lump limes be broken into send into the ball mill grinding behind the fritter of diameter less than 2cm to become 80 μ m to tail over less than 15% lime powder grey when unslaked lime enters factory, store for use;
(2) batching stirs: take by weighing 8 parts of cement, 0.06 part of aluminium powder cream, slip, lime powder ash in above-mentioned steps (1) stir, then cast; Teeming temperature is controlled between 40～50 ℃;
(3) quiet stopping: quiet stopping 1.5～2 hours behind the casting complete, get angry during this period and blank forming; Need quiet temperature of stopping the zone is controlled between 35～45 ℃.
(4) cutting: utilize the specification that steel wire cuts into to be needed;
(5) steam press maintenance: send into after cutting is accomplished and carry out maintenance in the autoclave, through after 2～2.5 hours with vapor pressure be elevated to 1.1～1.2Mpa, temperature is elevated to 185～195 ℃, keep carrying out in 7～8 hours lowering the temperature again 1.5～2 hours behind the chemical reaction.
Embodiment 3.As shown in Figure 1, make finished product according to following steps production:
(1) raw material is prepared: take by weighing 70 parts of high calcium sulfur-fixing coal ash, 20 parts of ordinary fly ashes, 6 parts in gypsum, add the finish mix slurry of entry, store for use; For block, 10 parts of lump limes be broken into send into the ball mill grinding behind the fritter of diameter less than 2cm to become 80 μ m to tail over less than 15% lime powder grey when unslaked lime enters factory, store for use;
(2) batching stirs: take by weighing 12 parts of cement, 0.08 part of aluminium powder cream, slip, lime powder ash in above-mentioned steps (1) stir, then cast; Teeming temperature is controlled between 40～50 ℃;
(3) quiet stopping: quiet stopping 1.5～2 hours behind the casting complete, get angry during this period and blank forming; Need quiet temperature of stopping the zone is controlled between 35～45 ℃.
(4) cutting: utilize the specification that steel wire cuts into to be needed;
(5) steam press maintenance: send into after cutting is accomplished and carry out maintenance in the autoclave, through after 2～2.5 hours with vapor pressure be elevated to 1.1～1.2Mpa, temperature is elevated to 185～195 ℃, keep carrying out in 7～8 hours lowering the temperature again 1.5～2 hours behind the chemical reaction.
Embodiment of the present invention is not limited to the foregoing description, and the various variations of under the prerequisite that does not break away from aim of the present invention, making all belong within protection scope of the present invention.
Claims (3)
1. a high calcium sulfur-fixing coal ash admixture ordinary fly ash is produced air-entrained concrete building block technology; It is characterized in that: according to weight proportion; By 55～70 parts of raw material high calcium sulfur-fixing coal ash, 5～20 parts of ordinary fly ashes, 4～6 parts in gypsum, 10～15 parts in lime, 8～12 parts of cement, 40～42 parts in water, 0.06～0.08 part of aluminium powder cream, make finished product through following production stage:
(1) raw material is prepared: take by weighing high calcium sulfur-fixing coal ash, ordinary fly ash and gypsum by above-mentioned weight proportion, add the finish mix slurry of entry, store for use; Lump lime is broken into sends into the ball mill grinding behind the fritter of diameter less than 2cm and become 80 μ m to tail over lime powder ash, store for use less than 15%;
(2) batching stirs: take by weighing cement, aluminium powder cream by above-mentioned weight proportion, slip, lime powder ash in above-mentioned steps (1) stir, then cast; Teeming temperature is controlled between 40～50 ℃;
(3) quiet stopping: quiet stopping 1.5～2 hours behind the casting complete, get angry and blank forming;
(4) cutting: utilize the specification that steel wire cuts into to be needed;
(5) steam press maintenance: send into after cutting is accomplished and carry out maintenance in the autoclave.
2. high calcium sulfur-fixing coal ash admixture ordinary fly ash according to claim 1 is produced air-entrained concrete building block technology, it is characterized in that: in the described step (3), quiet temperature of stopping the zone is controlled between 35～45 ℃.
3. high calcium sulfur-fixing coal ash admixture ordinary fly ash according to claim 1 is produced air-entrained concrete building block technology; It is characterized in that: in the described step (5); Cutting is sent into maintenance in the autoclave after accomplishing; Through after 2～2.5 hours with vapor pressure be elevated to 1.1～1.2Mpa, temperature is elevated to 185～195 ℃, keep carrying out in 7～8 hours lowering the temperature again 1.5～2 hours behind the chemical reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101484493A CN102633530A (en) | 2012-05-15 | 2012-05-15 | Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101484493A CN102633530A (en) | 2012-05-15 | 2012-05-15 | Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102633530A true CN102633530A (en) | 2012-08-15 |
Family
ID=46618131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101484493A Pending CN102633530A (en) | 2012-05-15 | 2012-05-15 | Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102633530A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775184A (en) * | 2012-08-16 | 2012-11-14 | 安徽建鑫新型墙材科技有限公司 | Preparation method of high-performance gas-filling building block composite material |
| CN103387412A (en) * | 2013-07-18 | 2013-11-13 | 烟台大学 | Method for producing aerated concrete with refuse incinerator slag and sulfur fixation ash |
| CN103467026A (en) * | 2013-09-11 | 2013-12-25 | 苏振彪 | Preparation method of aerated concrete building block |
| CN104876627A (en) * | 2014-09-22 | 2015-09-02 | 河北工程大学 | Method for preparing aerated concrete from gangue and iron tailings |
| CN107522501A (en) * | 2016-06-20 | 2017-12-29 | 新疆新特新能建材有限公司 | Air entrained concrete and preparation method thereof |
| CN107522453A (en) * | 2016-06-20 | 2017-12-29 | 新疆新特新能建材有限公司 | Air entrained concrete and preparation method thereof |
| CN108101487A (en) * | 2017-12-29 | 2018-06-01 | 甘肃润源环境资源科技有限公司 | It is a kind of to utilize concrete segment of high-calcium fly ass production and preparation method thereof |
| CN110395962A (en) * | 2019-07-25 | 2019-11-01 | 河南环泰建材有限公司 | A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash |
| CN111268985A (en) * | 2020-01-15 | 2020-06-12 | 浙江富春江环保热电股份有限公司 | Autoclaved aerated concrete block and preparation process thereof |
| CN113461435A (en) * | 2021-01-12 | 2021-10-01 | 山西鼎正环保建材有限公司 | Method for preparing autoclaved building blocks by comprehensively utilizing circulating fluidized bed sulfur-fixing ash |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328041A (en) * | 2008-07-23 | 2008-12-24 | 朱福华 | High performance aerated concrete and production method thereof |
| CN101863678A (en) * | 2010-06-04 | 2010-10-20 | 西南科技大学 | Circulating fluidized bed sulfur fixation ash aerated concrete and preparation method thereof |
-
2012
- 2012-05-15 CN CN2012101484493A patent/CN102633530A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328041A (en) * | 2008-07-23 | 2008-12-24 | 朱福华 | High performance aerated concrete and production method thereof |
| CN101863678A (en) * | 2010-06-04 | 2010-10-20 | 西南科技大学 | Circulating fluidized bed sulfur fixation ash aerated concrete and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《粉煤灰综合利用》 20021231 王智等 "流化床燃煤固硫渣混凝土的试验研究" 1-3 , 第5期 * |
| 王智等: ""流化床燃煤固硫渣混凝土的试验研究"", 《粉煤灰综合利用》, no. 5, 31 December 2002 (2002-12-31) * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775184A (en) * | 2012-08-16 | 2012-11-14 | 安徽建鑫新型墙材科技有限公司 | Preparation method of high-performance gas-filling building block composite material |
| CN103387412A (en) * | 2013-07-18 | 2013-11-13 | 烟台大学 | Method for producing aerated concrete with refuse incinerator slag and sulfur fixation ash |
| CN103387412B (en) * | 2013-07-18 | 2014-12-03 | 烟台大学 | Method for producing aerated concrete with refuse incinerator slag and sulfur fixation ash |
| CN103467026A (en) * | 2013-09-11 | 2013-12-25 | 苏振彪 | Preparation method of aerated concrete building block |
| CN104876627A (en) * | 2014-09-22 | 2015-09-02 | 河北工程大学 | Method for preparing aerated concrete from gangue and iron tailings |
| CN107522453A (en) * | 2016-06-20 | 2017-12-29 | 新疆新特新能建材有限公司 | Air entrained concrete and preparation method thereof |
| CN107522501A (en) * | 2016-06-20 | 2017-12-29 | 新疆新特新能建材有限公司 | Air entrained concrete and preparation method thereof |
| CN107522453B (en) * | 2016-06-20 | 2020-10-20 | 新疆新特新能建材有限公司 | Aerated concrete and preparation method thereof |
| CN107522501B (en) * | 2016-06-20 | 2021-01-29 | 新疆新特新能建材有限公司 | Aerated concrete and preparation method thereof |
| CN108101487A (en) * | 2017-12-29 | 2018-06-01 | 甘肃润源环境资源科技有限公司 | It is a kind of to utilize concrete segment of high-calcium fly ass production and preparation method thereof |
| CN110395962A (en) * | 2019-07-25 | 2019-11-01 | 河南环泰建材有限公司 | A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash |
| CN111268985A (en) * | 2020-01-15 | 2020-06-12 | 浙江富春江环保热电股份有限公司 | Autoclaved aerated concrete block and preparation process thereof |
| CN113461435A (en) * | 2021-01-12 | 2021-10-01 | 山西鼎正环保建材有限公司 | Method for preparing autoclaved building blocks by comprehensively utilizing circulating fluidized bed sulfur-fixing ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102633530A (en) | Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash | |
| CN102464497B (en) | Waste brick tile/straw foam concrete and preparation method thereof | |
| CN101423368B (en) | Light wall board and manufacturing technology thereof | |
| CN102584322B (en) | Preparation method for pulverized coal-ash-based porous artificial stone | |
| CN102718424B (en) | High-activity granulated blast furnace slag and preparation method thereof | |
| CN103159450B (en) | Production method of foamed concrete block manufactured from steel slag | |
| CN106007434B (en) | A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and preparation method thereof | |
| CN102643070B (en) | Ceramsite heat-preservation building block using non-calcined desulfurized gypsum as main cementing material and preparation method thereof | |
| CN102658596B (en) | Method for preparing high-strength concrete material by using fly ash and iron tailings | |
| CN102674786B (en) | Inorganic heat-insulation building block using non-calcined desulphurization gypsum as main gel material and preparation method of inorganic heat-insulation building block | |
| CN103723988B (en) | The high-strength light gas concrete utilizing glass powder to prepare and method thereof | |
| CN1954983B (en) | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag | |
| CN102336550A (en) | Non-steamed brick and preparation method thereof | |
| CN104876627A (en) | Method for preparing aerated concrete from gangue and iron tailings | |
| CN112919854A (en) | Coal-based solid waste geopolymer cementing material and preparation method thereof | |
| CN102850012A (en) | Manufacturing method of high-calcium solid sulfur ash aerated concrete building blocks | |
| CN103992086A (en) | Fire and water resistant aerated brick and making method thereo f | |
| CN105732088A (en) | Novel porous brick and preparation method thereof | |
| CN104478386A (en) | Mix-enhanced binding gypsum and preparation method thereof | |
| CN101804659B (en) | Preparation method of light-weighted autoclaved unburned block | |
| CN112694272B (en) | Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof | |
| CN104086146A (en) | Resource utilization method of mine tailings | |
| CN102531517B (en) | Method for preparing inorganic fireproof plate for building by adopting steel slag tailings and desulfurized gypsum | |
| CN108609988B (en) | Method for producing aerated concrete building block by using fluorite beneficiation waste residue-quartz tailings | |
| CN110818300A (en) | Manganese slag super-sulfate cement and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120815 |