CN1087695A - Miniature hollow building block with calcium carbide dregs concrete - Google Patents
Miniature hollow building block with calcium carbide dregs concrete Download PDFInfo
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- CN1087695A CN1087695A CN92107838A CN92107838A CN1087695A CN 1087695 A CN1087695 A CN 1087695A CN 92107838 A CN92107838 A CN 92107838A CN 92107838 A CN92107838 A CN 92107838A CN 1087695 A CN1087695 A CN 1087695A
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- concrete
- building block
- cement
- calcium carbide
- hollow building
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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)
Abstract
The invention provides a kind of block strength can reach about 9MPa, and suitable with the standard loam brick economically Miniature hollow building block with calcium carbide dregs concrete.It is characterized in that based on cement concrete.By needed requirement of strength, reduce by 30%-50% cement consumption, use the minimizing part of carbide slag compound (carbide slag the adds flyash) place of cement of equivalent then.The present invention has and draws materials easily, energy conservation, and advantages such as environment pollution are ploughed, are saved the area, alleviate in protection.
Description
The present invention relates to a kind of constructional materials, is Miniature hollow building block with calcium carbide dregs concrete specifically.
The specification of cement concrete small-sized hollow building block, shape are finalized the design almost in JGJ14-82 " Small Concrete Hollow Block Building design and construction rules " by nation-building portion.The master ga(u)ge lattice are 390 * 190 * 190(length * wide * height), auxilliary specification has 190 * 190 * 190 and 190 * 190 * 90 etc.Material is a cement concrete.At present domestic except the small-sized hollow building block of cement concrete, still also have small-sized hollow building blocks such as cinder coagulation, mine tailings concrete and iron-tion slag.But all there is the problem of a Technological Economy in these miscellaneous small-sized hollow building blocks.What have is relatively poor because of raw-material strength ratio, causes the intensity of building block on the low side, and the intensity of the made building block that has improves, and cement concrete small-sized hollow building block for example, but cost of production by a relatively large margin increase along with the raising of intensity have influenced its economic benefit.The intensity of building block so far generally all is lower than 7.5MPa, has only usually about 5MPa, is difficult to satisfy the requirement of strength of bearing wall, can only be used for nonweight-bearing framework infilled wall as many.The cement concrete small-sized hollow building block of producing with Haimen, Jiangsu Province county building block factory is an example, and block strength is no more than 7.5MPa, and 1.25 yuan of every prices are equivalent to 140% of standard brick price, if be used for the alternate standard common brick, certainly will bring economically unreasonable.
The objective of the invention is to avoid above-mentioned weak point of the prior art and provide a kind of block strength can reach about 9MPa, and suitable with the standard loam brick economically, even Miniature hollow building block with calcium carbide dregs concrete that also may be more cheap than standard loam brick.
Purpose of the present invention can reach by following measure:
Carbide slag is by calcium carbide piece (CaC
2) waste residue that after acetylene generator, given off, its chemical composition sees Table one:
Carbide slag chemical composition (%) table one
| SiO 2 | Cao | MgO | Al 20 3 | Fe 20 3 | Loss on ignition | ∑ | Annotate |
| 5.65 | 61.89 | 0.39 | 2.42 | 0.55 | 28.06 | 98.96 | Effective calcium 47.3 |
By table one as seen, the main component of carbide slag is Ca(OH)
2, secondly be SiO
2
The present invention adopts the active mixture of flyash-a kind of industrial waste as carbide slag, and its chemical composition sees Table two:
Chemical composition of PCA (%) table two
| SiO 2 | Cao | MgO | Al 20 3 | Fe 20 3 | Loss on ignition | ∑ | |
| 57.52 | 4.16 | 1.36 | 23.24 | 10.25 | 6.41 | 96.94 |
The preparation of calcium carbide dregs concrete is based on cement concrete.By needed requirement of strength, reduce by 30%～50% cement consumption, use the minimizing part of the carbide slag compound place of cement of equivalent then.
The proportioning of carbide slag compound is to change with the different of chemical composition of PCA content with carbide slag.So that after the blending of itself and cement, CaO and SiO
2The ratio of component materials is 0.8-1.33.
Calcium carbide dregs concrete also can use and reduce the purpose that agent can reach interior diminishing of certain limit and enhancing as cement concrete.
Embodiment:
Example one:
1, the building block product strength requires: building block gross area compressive strength is 8MPa.
2, method: based on cement consumption is 362 kilograms concrete, reduces its cement of 40%, and about 145 kilograms, promptly cement consumption reduces to 217 kilograms, adds 145 kilograms carbide slag compound then.According to the selected carbide slag of this example and the content of chemical composition of PCA, the ratio of compound fusion is 1:3,185 kilograms of concrete mixing waters, and just water/binder ratio is 0.511, the calcium carbide dregs concrete after mixing and stirring is through being shaped to small-sized hollow building block.
3, maintenance: natural curing 28 days.
4, testing result: through compressive strength test, building block gross area compressive strength R28=8.3MPa meets the requirement of strength of building block fully.
Example two:
1, requires: with example one.
2, method: by the method for example one, other adds 1.8 kilograms of AF high efficiency water reducing agents, about 28 kilograms of diminishing 15%().
3, maintenance: with example one.
4, testing result: building block gross area compressive strength R28=9.6MPa, improve about 10% than example one block strength.
The present invention compared with prior art has following advantage:
1, draw materials easily: about 78% of building block materials are sandstone region material. And comprehensive development and utilization two kinds of industrial residues (carbide slag and flyash), consumption accounts for about 6.5% of building block materials.
2, energy savings: fire 1m3Clay need consume 114 kilograms in mark coal, and produces 1m3The small-sized building-block of cement concrete only need consume about 30 kilograms in coal of mark, and it is about 70% to save the mark coal, now, has substituted cement concrete with calcium carbide dregs concrete, because cement is used The further minimizing of amount, particularly, being utilized of industrial waste, thereby can remove the energy and the labour who administers the required consumption of the three wastes from, to estimate according to rough frame, energy-conservation benefit can improve about 25% on the energy-conservation basis of cement concrete building block.
3, environmental pollution plough, is saved the area, alleviates in protection: substitute sintered clay brick with the small-sized building-block of production and can avoid ruining the field and bake bricks. Because being utilized of industrial waste both can have been reduced the original stockyard of industrial waste, also alleviated the pollution of industrial waste to surrounding environment simultaneously.
4, brought into play the humidification of carbide slag compound: because the strength degradation rate of small-sized building-block is generally about 0.3, so-called strength degradation rate, the words of 10MPa in other words as raw-material concrete strength, make after the building block, otherwise the intensity of building block only has 3MPa, if want the intensity of small-sized building-block to improve 1MPa, so concrete intensity must improve 3-4MPa and just can be satisfied. As calculating as 11 kilograms take the cement consumption of concrete unit volume unit strength, every m then3Concrete need increase cement amount 30-40 kilogram. But for calcium carbide dregs concrete, because the cement consumption index of its unit volume unit strength is about 8 kilograms, so the cement consumption that increases only is about 75% of cement concrete recruitment.
Claims (3)
1, a kind of Miniature hollow building block with calcium carbide dregs concrete, the preparation that it is characterized in that calcium carbide dregs concrete is based on cement concrete, reduces by 30%～50% cement consumption, uses the minimizing part of the carbide slag compound place of cement of equivalent then.
2, Miniature hollow building block with calcium carbide dregs concrete according to claim 1, the proportioning that it is characterized in that the carbide slag compound are to change with the different of chemical composition of PCA content with carbide slag, so that after its cement blending, CaO and SiO
2The ratio of component materials is 0.8-1.33.
3, Miniature hollow building block with calcium carbide dregs concrete according to claim 1 is characterized in that adding in the calcium carbide dregs concrete water reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92107838A CN1087695A (en) | 1992-12-02 | 1992-12-02 | Miniature hollow building block with calcium carbide dregs concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92107838A CN1087695A (en) | 1992-12-02 | 1992-12-02 | Miniature hollow building block with calcium carbide dregs concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1087695A true CN1087695A (en) | 1994-06-08 |
Family
ID=4943095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92107838A Pending CN1087695A (en) | 1992-12-02 | 1992-12-02 | Miniature hollow building block with calcium carbide dregs concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1087695A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325420C (en) * | 2005-03-03 | 2007-07-11 | 德阳市智源新材料有限公司 | Environment-protecting high pressure no-baking carbide residue brick and its making process |
| CN1954983B (en) * | 2005-10-24 | 2010-05-05 | 南京理工大学 | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag |
| CN102060496A (en) * | 2010-12-02 | 2011-05-18 | 福建省世钻高新建材有限公司 | Rock ballast powder aerated concrete and preparation method thereof |
| CN103466977A (en) * | 2013-09-03 | 2013-12-25 | 北京工业大学 | Method for preparing substitutive raw material of cement |
-
1992
- 1992-12-02 CN CN92107838A patent/CN1087695A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325420C (en) * | 2005-03-03 | 2007-07-11 | 德阳市智源新材料有限公司 | Environment-protecting high pressure no-baking carbide residue brick and its making process |
| CN1954983B (en) * | 2005-10-24 | 2010-05-05 | 南京理工大学 | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag |
| CN102060496A (en) * | 2010-12-02 | 2011-05-18 | 福建省世钻高新建材有限公司 | Rock ballast powder aerated concrete and preparation method thereof |
| CN102060496B (en) * | 2010-12-02 | 2012-11-21 | 福建省世钻高新建材有限公司 | Rock ballast powder aerated concrete and preparation method thereof |
| CN103466977A (en) * | 2013-09-03 | 2013-12-25 | 北京工业大学 | Method for preparing substitutive raw material of cement |
| CN103466977B (en) * | 2013-09-03 | 2016-08-10 | 北京工业大学 | A kind of preparation method of substitutive raw material of cement |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |