CN104591617A - Steam-curing-free fly ash building block - Google Patents
Steam-curing-free fly ash building block Download PDFInfo
- Publication number
- CN104591617A CN104591617A CN201410835711.0A CN201410835711A CN104591617A CN 104591617 A CN104591617 A CN 104591617A CN 201410835711 A CN201410835711 A CN 201410835711A CN 104591617 A CN104591617 A CN 104591617A
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- building block
- flyash
- slag
- evaporating
- cured
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- 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
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of building materials, and in particular relates to a building block processed from main raw materials of waste industrial slag and fly ash. The building block is prepared from the following raw materials in percentage by weight by the steps of stirring, uniformly mixing and molding at normal temperature: 5-15% of carbide slag, 4-15% of cement, 1-5% of sodium sulfate, 0-1% of a water reducing agent, 25-40% of fly ash and 50% of furnace slag. The building block has the beneficial effects that most of productive materials are industrial waste slag, and the utilization ratio of the industrial waste slag can reach more than 90%, so that the industrial energy saving standard is improved and the material cost is reduced; the production process is simple, the processing energy consumption is low, steam curing is not needed, and foaming with a foaming machine is also not needed; and during construction, the structures of male and female grooves do not need bricklaying, so that the construction is convenient and the construction cost is low.
Description
Technical field
The invention belongs to building material technical field, particularly relate to a kind of building block of processing for main raw material with discarded industrial slags and flyash.
Background technology
Fly ash aerated steam-cured stripping and slicing Technology, has introduced China's development course of nearly 40 years, has obtained good development foundation.Utilizing the steam-cured building block of flyash production aerating, is because the good mechanical properties of flyash, cold-resistant insulation light weight, but it needs High Temperature High Pressure, and energy expenditure is very large, and processing step is complicated, and production cost is relatively high, causes its economic benefit not to be clearly.
It is the raw materials such as flyash, cement, fine grinding quicklime, refined aluminium ash, phosphogypsum that the fly ash building block that domestic production present situation is general mainly makes raw material.This type of raw material is all the raw material needing secondary processing, and batch mixing foaming also will through high-temperature steam curing after building by laying bricks or stones, so cause high raw materials cost.And the technique power consumption of autoclave is high, greatly improve the tooling cost of production.
On the other hand, at flyash, it uses the effect of fine grinding quicklime to supplement the calcium raw material produced required for reaction in producing, and after making finished product, the aquation problem brought can cause building block volume to occur expanding, and causes occurring distortion having a strong impact on quality.In general production, the expansion that fly ash building block causes because of use unslaked lime abandons product rate 5%.
The maximum purposes of flyash is, it can eat ash in a large number, well can utilize flyash activity again, and saves the energy, and relative cost is low, decreasing pollution, turn waste into wealth by be one long-term and have far-reaching great research topic.For a new technological process, if do not have obvious economic benefit and market competition advantage, application and promoting being a very difficult thing, so just limits its development.For when energy day is becoming tight from now on, the steam-cured mode of this High Temperature High Pressure just should not be advocated.In order to reduce costs, save energy, makes full use of flyash activity, utilizes for flyash itself, and non-evaporating foster few cement clinker, non-cement chamotte powder coal ash can greatly reduce costs.
Summary of the invention
The object of the invention is to provide a kind of fly ash building block utilizing rejected fly ash slag, slag, carbide slag, aluminium scrap ash to be made for raw material at normal temperatures, raw materials used more than 90% is industrial residue, effectively solves the problem of building block materials cost and industrial waste residue disposal.
To achieve these goals, technical scheme of the present invention be adopt suitable industrial residue raw material replace traditional fly ash building block produce in use material replace, and selected replacement material without the need to steam-cured can with other raw material reaction.Under continuous technology experiment is supported, the present invention selects to adopt the fine grinding quicklime in useless carbide slag replacement traditional proportioning, adopts aluminium scrap ash to replace the mode of refined aluminium ash, coordinates second class powered coal ash and three grades of powdered coal ash-cinder mixing raw materials to make fly ash building block.
According to above technical scheme, the non-evaporating cured flyash building block of the present invention, be molded as through being uniformly mixed to water at normal temperatures by following proportioning raw material, proportioning raw materials is: carbide slag 5-15%, cement 4-15%, sodium sulfate 1-5%, water reducer 0-1%, flyash 25-40%, slag 50%.
A kind of preferred flyash stripping and slicing formula: carbide slag 6%, cement 5%, sodium sulfate 1.5%, water reducer 0.5%, flyash 37%, slag 50%.
Described cement selection 425 composite Portland cement.
Described flyash is second class powered coal ash and first level flour coal ash.
Described slag is made up of three grades of flyash waste residues and aluminium scrap ash.
Described non-evaporating cured flyash building block constructs with male and female groove, and top is provided with projecting formations, bottom is provided with recess configurations.
Described projection and groove are the male and female groove structures that can be combined together, and cross-sectional configuration is rectangle, trilateral, trapezoidal and semicircle, and preferred cross-sectional configuration is trapezoidal.
Useless carbide slag is adopted to replace fine grinding quicklime raw material in the present invention, not only solve the volumetric expansion problem on deformation that after using unslaked lime, aquation causes, and the early stage time of coagulation in production process has advanceed to about 45 minutes by using 4 hours needed for unslaked lime raw material, thus save the time, accelerate mould turnaround speed, improve mould rate of utilization.On the other hand, the product strength that carbide slag raw material production of giving up goes out is also good than use fine grinding quicklime.
Beneficial effect of the present invention is to produce material major part for industrial residue, and rate of utilization more than 90%, can improve industrial energy saving standard, reduces material cost; Production technique is simple, and processing power consumption is low, without the need to steam-cured, foams without the need to foaming machine; During construction, male and female groove structure is without the need to building by laying bricks or stones, and easy construction, construction cost is low.
Accompanying drawing explanation
Accompanying drawing 1 is integral construction schematic diagram of the present invention.
Accompanying drawing 2 is building wall organigram of the present invention.
In accompanying drawing: non-steaming fly ash building block 1, projection 11, groove 12.
Embodiment
As shown in the figure, the present invention will be further described in detail:
The non-evaporating cured flyash building block of the present invention, be molded as through being uniformly mixed to water at normal temperatures by following proportioning raw material, proportioning raw materials is: carbide slag 5-15%, cement 4-15%, sodium sulfate 1-5%, water reducer 0-1%, flyash 25-40%, slag 50%.
A kind of preferred fly ash building block formula: carbide slag 6%, cement 5%, sodium sulfate 1.5%, water reducer 0.5%, flyash 37%, slag 50%.
Described cement selection 425 composite Portland cement.
Described flyash is second class powered coal ash and first level flour coal ash.
Described slag is made up of three grades of flyash waste residues and aluminium scrap ash.
Described non-evaporating cured flyash building block 1 is with male and female groove structure, and top is provided with protruding 11 structures, bottom is provided with groove 12 and constructs.
Described projection 11 and groove 12 are the male and female groove structures that can be combined together, and cross-sectional configuration is rectangle, trilateral, trapezoidal and semicircle, and preferred cross-sectional configuration is trapezoidal.
Embodiment one:
A kind of non-evaporating cured flyash building block made by following technique:
1. get the material of following proportioning: carbide slag 6 parts, cement 5 parts, 1.5 parts, sodium sulfate, water reducer 0.5 part, 37 parts, flyash, 50 parts, slag, put into agitated pool, mix;
2. limit adds waterside and at the uniform velocity stirs, and makes to mix to thick coal ash pulp;
3. the coal ash pulp be stirred is poured in ready mixed coal ash building block mould;
4., after solidifying, go mould to dry, refined flyash building block 1.
The fly ash building block 1 made according to above proportioning, every cubic metre of unit weight 750kg/m3, wherein cement 37.5kg, carbide slag 37.5kg, sodium sulfate 11.25kg, water reducer 3.75kg, flyash 285kg, slag 375kg.
Embodiment two:
A kind of as described in accompanying drawing 2 uses the structure of fly ash building block walling: the adjacent two pieces of fly ash building blocks 1 in left and right are arranged side by side, the fly ash building block of two rows staggers half body position, the projection 11 of the fly ash building block of lower row coordinates in male and female groove with the groove 12 of upper discharge coal ash building block, fixing without the need to boning, greatly accelerate speed of application and strength of wall body.
Claims (7)
1. a non-evaporating cured flyash building block, it is characterized in that, be uniformly mixed at normal temperatures to water by following proportioning raw material and be molded as, proportioning raw materials is: carbide slag 5-15%, cement 4-15%, sodium sulfate 1-5%, water reducer 0-1%, flyash 25-40%, slag 50%.
2. non-evaporating cured flyash building block as claimed in claim 1, is characterized in that: a kind of preferred proportioning raw materials is: carbide slag 6%, cement 5%, sodium sulfate 1.5%, water reducer 0.5%, flyash 37%, slag 50%.
3. non-evaporating cured flyash building block as claimed in claim 1, is characterized in that: preferred cement selection 425 composite Portland cement.
4. non-evaporating cured flyash building block as claimed in claim 1, is characterized in that: preferred flyash selects second class powered coal ash and first level flour coal ash.
5. non-evaporating cured flyash building block as claimed in claim 1, is characterized in that: preferred slag is made up of three grades of flyash waste residues and aluminium scrap ash.
6. non-evaporating cured flyash building block as claimed in claim 1, is characterized in that: non-evaporating cured flyash building block 1 is with male and female groove structure, and top is provided with projection (11) structure, bottom is provided with groove (12) structure.
7. non-evaporating cured flyash building block as claimed in claim 1, it is characterized in that: protruding (11) and groove (12) are the male and female groove structures that can be combined together, cross-sectional configuration is rectangle, trilateral, trapezoidal and semicircle, and preferred cross-sectional configuration is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835711.0A CN104591617A (en) | 2014-12-30 | 2014-12-30 | Steam-curing-free fly ash building block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835711.0A CN104591617A (en) | 2014-12-30 | 2014-12-30 | Steam-curing-free fly ash building block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104591617A true CN104591617A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410835711.0A Pending CN104591617A (en) | 2014-12-30 | 2014-12-30 | Steam-curing-free fly ash building block |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096500A (en) * | 1994-04-13 | 1994-12-21 | 吉兆泰 | A kind of prescription of fly-ash building-material and goods thereof |
| CN1137596A (en) * | 1995-06-07 | 1996-12-11 | 施殿旭 | Fly ash baking-free non-steaming light partition board |
| CN202187460U (en) * | 2011-07-05 | 2012-04-11 | 天津市名鑫建材有限公司 | Multiple-purpose building block |
| KR20120079684A (en) * | 2011-01-05 | 2012-07-13 | 삼성물산 주식회사 | High-flowability and low- strength concrete for backfill |
| CN103804018A (en) * | 2014-01-02 | 2014-05-21 | 洛阳理工学院 | Wall brick for buildings and preparation method thereof |
| CN103899032A (en) * | 2014-04-04 | 2014-07-02 | 江苏建筑职业技术学院 | Composite self-thermal preservation building block made from domestic garbage incineration slag |
-
2014
- 2014-12-30 CN CN201410835711.0A patent/CN104591617A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096500A (en) * | 1994-04-13 | 1994-12-21 | 吉兆泰 | A kind of prescription of fly-ash building-material and goods thereof |
| CN1137596A (en) * | 1995-06-07 | 1996-12-11 | 施殿旭 | Fly ash baking-free non-steaming light partition board |
| KR20120079684A (en) * | 2011-01-05 | 2012-07-13 | 삼성물산 주식회사 | High-flowability and low- strength concrete for backfill |
| CN202187460U (en) * | 2011-07-05 | 2012-04-11 | 天津市名鑫建材有限公司 | Multiple-purpose building block |
| CN103804018A (en) * | 2014-01-02 | 2014-05-21 | 洛阳理工学院 | Wall brick for buildings and preparation method thereof |
| CN103899032A (en) * | 2014-04-04 | 2014-07-02 | 江苏建筑职业技术学院 | Composite self-thermal preservation building block made from domestic garbage incineration slag |
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Application publication date: 20150506 |
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