CN1332128A - Composite flyash-gypsum block (brick) and its production process - Google Patents
Composite flyash-gypsum block (brick) and its production process Download PDFInfo
- Publication number
- CN1332128A CN1332128A CN01124690A CN01124690A CN1332128A CN 1332128 A CN1332128 A CN 1332128A CN 01124690 A CN01124690 A CN 01124690A CN 01124690 A CN01124690 A CN 01124690A CN 1332128 A CN1332128 A CN 1332128A
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- CN
- China
- Prior art keywords
- flyash
- brick
- gypsum
- block
- composite
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- 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.)
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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
Abstract
The composite flyash-gypsum block (brick) is produced with building gypsum powder 30-40 wt%, flyash 30-40 wt%, lime 10-14 wt%, perlite 13-18 wt%, gypsum water reducing agent 0.6-1.4 wt% and flyash activator 0.8-1.2 wt% and through the following processes: mixing the mixture of ground lime and flyash with water solution of gypsum water reducing agent and flyash activator; adding gypsum powder and alkali resisting glass fiber or produce slurry through stirring; molding the slurry inside mold through vibration to produce block or brick; demolding and curing to obtain product with water content less than 5 %. The composite block or brick of the present invention has high softening coefficient, simple production process and low cost and may be used in moist environment.
Description
(1) technical field
The present invention relates to building material field, particularly a kind of composite flyash-gypsum block (brick) piece (brick) and production method thereof.
(2) background technology
Present domestic many manufacturer production gypsum blocks that have, its production method is basic identical, it promptly is main raw material with the terra alba, be equipped with stopping composition such as flyash and whipping agent make through pulverizing, prepare burden, stir, go into operations such as mould, moulding, the demoulding, maintenance (as " in novel wall material handbook one book, " gypsum hollow block ", " gypsum block " two joints are described).The main drawback of this technology is: (1) needs a large amount of gypsum that use to do raw material, the production cost height, and the waste gypsum resource, and can not utilize discarded and the flyash or the industrial slags of contaminate environment morely; (2) this building block is because coefficient of softening lower (being lower than 0.6), therefore can not under wet environment, use, then must adopt moistureproof processing or steam-cured (steam-cured effect is the activity that improves flyash) carried out in this building block as in wet environment, using obstinately, though so utilized flyash that cost is reduced, to make it on the contrary increase, and influenced the enthusiasm that people utilize flyash.It is reported, present gypsum block of producing, all employing steam curing process or moistureproof treatment measures, cost is reduced, increase cost on the contrary; Allly do not adopt steam curing process or moistureproof handle, the flyash-gypsum building block that it is produced, its coefficient of softening is all very low and have only 0.3-0.5.In a word, also do not find better solution up till now for this reason.As for making brick, also hear at present with flyash, gypsum.
(3) summary of the invention
Technical assignment to be solved by this invention provides and a kind ofly both can utilize flyash (or slag) in a large number, can save gypsum resource again, and need not to adopt steam-cured or moisture preventive measure just can make coefficient of softening be higher than GB (surpass 0.6), and low novel powdered coal ash gypsum composite block (brick) and the production method thereof of production cost.
Task of the present invention realizes by following proposal: a kind of composite flyash-gypsum block (brick) piece (brick), and its used starting material and prescription are (counting by weight percentage):
1, building gypsum plaster 30-40%
2, flyash 30-40%
3, lime 10-14%
4, perlite 13-18%
5, gypsum water reducer 0.6-1.4%
6, flyash activity exciting agent 0.8-1.2%
The alkali resistant glass fibre that wherein, also can add 0.5-1.5%.
The flyash activity exciting agent is NaCl, KOH, NaOH, Na
2CO
3, CaCl
2, Na
2SO
4In one or more combination.
Its production technique is:
(1) lime is levigate;
(2) lime after levigate and flyash are mixed in proportion the aqueous solution that the back adding is dissolved with gypsum water reducer, flyash activity exciting agent in advance, stirring is mixture;
(3) in mixture, add building gypsum plaster or building gypsum plaster and alkali resistant glass fibre, and be stirred into slip;
(4) slip is injected in the mould, make the slip vibratory compaction be shaped to building block (or brick);
(5) demoulding;
(6) building block (or brick) of gained after the demoulding is placed stack the place, cover and add a cover straw screen or mat heat and moisture preserving maintenance 7 days, take away these covertures then and make its seasoning, treat that moisture content is lower than at 5% o'clock and is finished product with plastics film.
The composite flyash-gypsum block (brick) piece of producing according to technical scheme of the present invention (brick), not only can utilize cheapness in a large number, discard and the flyash (or slag) of contaminate environment, the gypsum resource of saves valuable, improve environmental pollution, and its production technique is simple, cost low (having removed steam curing process or other moisture preventive measure from), and the coefficient of softening height of product (greater than 0.6, being higher than GB) can be used for wet environment.
Four, the specific embodiment:
1. 1 kinds of composite flyash-gypsum block bricks of embodiment is characterized in that its raw materials and prescription are (counting by weight percentage):
(1) building gypsum plaster 40%
(2) flyash 32%
(3) lime 13%
(4) perlite 13%
(5) the gypsum water reducer 1%
(6) the flyash activity exciting agent 1%
Embodiment 2 composite flyash-gypsum block bricks is characterized in that its raw materials and prescription are (counting by weight percentage):
(1) building gypsum plaster 35%
(2) flyash 34.1%
(3) lime 14%
(4) perlite 15%
(5) the gypsum water reducer 0.8%
(6) the flyash activity exciting agent 1.1%
Embodiment 3 composite flyash-gypsum block bricks is characterized in that its raw materials and prescription are (counting by weight percentage):
(1) building gypsum plaster 38%
(2) flyash 33%
(3) quick lime 13%
(4) perlite 13%
(5) the gypsum water reducer 1%
(6) the flyash activity exciting agent 1%
(7) glass fibre 1%
The flyash activity exciting agent is NaCl, KOH, NaOH, Na2CO
3、CaCl
2、Na
2SO
4In any or several combinations, its consumption can suitably adjust.
The production technology of the present invention's composite flyash-gypsum block (or brick) is so specifically:
(1) quick lime is added water and make white lime, more levigate to 160 orders;
(2) lime after levigate and flyash being mixed in proportion rear adding is dissolved with in advance gypsum and subtracts The aqueous solution of aqua, flyash activity exciting agent, and stir;
(3) in said mixture, add building gypsum plaster and alkali-resistant glass fibre, stir Become slip;
(4) slip is injected in the mould, make the slip vibratory compaction be shaped to building block (or brick);
(5) demoulding;
(6) building block (or brick) with gained after the demoulding places the stacking place, with the thin covering of plastics also Roller lid straw screen or mat heat and moisture preserving maintenance 7 days is taken away then these coverings and is made its air dry, treats moisture content Be finished product when being lower than 5%.
Claims (4)
1. a composite flyash-gypsum block (brick) piece (brick) is characterized in that its used starting material and prescription are (counting by weight percentage):
(1) building gypsum plaster 30-40%
(2) flyash 30-40%
(3) lime 10-14%
(4) perlite 13-18%
(5) gypsum water reducer 0.6-1.4%
(6) flyash activity exciting agent 0.8-1.2%
2. composite flyash-gypsum block (brick) piece according to claim 1 (brick) is characterized in that wherein also being added with the alkali resistant glass fibre of 0.5-1.5%.
3, composite flyash-gypsum block (brick) piece according to claim 1 and 2 (brick) is characterized in that the flyash activity exciting agent is NaCl, KOH, NaOH, Na
2CO
3, CaCl
2, Na
2SO
4In one or more combination.
4, the production method of a kind of composite flyash-gypsum block (brick) piece as claimed in claim 1 or 2 (brick) is characterized in that its production craft step is:
(1) lime is levigate;
(2) lime after levigate and flyash are mixed in proportion the aqueous solution that the back adding is dissolved with gypsum water reducer, flyash activity exciting agent in advance, stirring is mixture;
(3) in mixture, add building gypsum plaster or building gypsum plaster and alkali resistant glass fibre, and be stirred into slip;
(4) slip is injected in the mould, make the slip vibratory compaction be shaped to building block (or brick);
(5) demoulding;
(6) building block (or brick) of gained after the demoulding is placed stack the place, cover and add a cover straw screen or mat heat and moisture preserving maintenance 5-8 days, take away these covertures then and make its seasoning, treat that moisture content is lower than at 5% o'clock and is finished product with plastics film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01124690A CN1117040C (en) | 2001-08-08 | 2001-08-08 | Composite flyash-gypsum block (brick) and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01124690A CN1117040C (en) | 2001-08-08 | 2001-08-08 | Composite flyash-gypsum block (brick) and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1332128A true CN1332128A (en) | 2002-01-23 |
| CN1117040C CN1117040C (en) | 2003-08-06 |
Family
ID=4665781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01124690A Expired - Fee Related CN1117040C (en) | 2001-08-08 | 2001-08-08 | Composite flyash-gypsum block (brick) and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1117040C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7264673B2 (en) | 2001-11-28 | 2007-09-04 | Unisearch Limited | Manufacture of articles from fly ash |
| CN100368646C (en) * | 2005-07-01 | 2008-02-13 | 王长生 | Light composite heat insulating wall block and its production process |
| CN100464961C (en) * | 2008-01-15 | 2009-03-04 | 山东金塔建设有限公司 | Serum pulping method and pulping equipment |
| CN100480012C (en) * | 2006-05-22 | 2009-04-22 | 沈阳建筑大学 | Method for manufacturing flyash brick |
| CN101857400A (en) * | 2010-04-22 | 2010-10-13 | 连来才 | Lightweight insulating brick and production process thereof |
| CN101920520A (en) * | 2010-08-18 | 2010-12-22 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing gypsum building block with titanium gypsum |
| CN104960085A (en) * | 2015-05-19 | 2015-10-07 | 陕西东泽高科实业有限公司 | Pipe-manufacturing method for vibration-molding pipe of core mould |
| CN106045408A (en) * | 2016-06-07 | 2016-10-26 | 洛阳理工学院 | High-strength building block and preparation method thereof |
| CN106477930A (en) * | 2016-10-12 | 2017-03-08 | 贵州师范大学 | A kind of chemical admixture for exciting old long-pending flyash activity and its application |
| CN106495578A (en) * | 2016-10-12 | 2017-03-15 | 贵州师范大学 | A kind of mineral additive for exciting old long-pending flyash activity and its application |
-
2001
- 2001-08-08 CN CN01124690A patent/CN1117040C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7264673B2 (en) | 2001-11-28 | 2007-09-04 | Unisearch Limited | Manufacture of articles from fly ash |
| CN100368646C (en) * | 2005-07-01 | 2008-02-13 | 王长生 | Light composite heat insulating wall block and its production process |
| CN100480012C (en) * | 2006-05-22 | 2009-04-22 | 沈阳建筑大学 | Method for manufacturing flyash brick |
| CN100464961C (en) * | 2008-01-15 | 2009-03-04 | 山东金塔建设有限公司 | Serum pulping method and pulping equipment |
| CN101857400A (en) * | 2010-04-22 | 2010-10-13 | 连来才 | Lightweight insulating brick and production process thereof |
| CN101920520A (en) * | 2010-08-18 | 2010-12-22 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing gypsum building block with titanium gypsum |
| CN101920520B (en) * | 2010-08-18 | 2012-04-18 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing gypsum building block with titanium gypsum |
| CN104960085A (en) * | 2015-05-19 | 2015-10-07 | 陕西东泽高科实业有限公司 | Pipe-manufacturing method for vibration-molding pipe of core mould |
| CN106045408A (en) * | 2016-06-07 | 2016-10-26 | 洛阳理工学院 | High-strength building block and preparation method thereof |
| CN106477930A (en) * | 2016-10-12 | 2017-03-08 | 贵州师范大学 | A kind of chemical admixture for exciting old long-pending flyash activity and its application |
| CN106495578A (en) * | 2016-10-12 | 2017-03-15 | 贵州师范大学 | A kind of mineral additive for exciting old long-pending flyash activity and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1117040C (en) | 2003-08-06 |
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