CN102139512A - Atmospheric steam curing technique for fiber cement external wall panel - Google Patents
Atmospheric steam curing technique for fiber cement external wall panel Download PDFInfo
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- CN102139512A CN102139512A CN2010101032425A CN201010103242A CN102139512A CN 102139512 A CN102139512 A CN 102139512A CN 2010101032425 A CN2010101032425 A CN 2010101032425A CN 201010103242 A CN201010103242 A CN 201010103242A CN 102139512 A CN102139512 A CN 102139512A
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- China
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- steam curing
- wall panel
- external wall
- fiber cement
- side fascia
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an atmospheric steam curing technique for a fiber cement external wall panel, which comprises the following steps: (1) after a fiber cement external wall panel is subjected to extrusion forming, carrying out low-temperature steam curing on the fiber cement external wall panel at 20-30 DEG C for 10-20 hours under the humidity of 60-80%, and entering the next curing stage after the cement in the fiber cement external wall panel finally sets; and (2) carrying out high-temperature steam curing at 60-90 DEG C for 5-15 hours under the humidity of 70-90%. In the invention, the fiber cement external wall panel is subjected to steam curing in a low-temperature steam curing/high-temperature steam curing combined mode, so that the product has higher initial strength, and can not easily bubble; and thus, the product quality and production efficiency are enhanced.
Description
Technical field
The present invention relates to a kind of fibre cement Side fascia atmospheric steam curing technology.
Background technology
The fibre cement Side fascia needs to carry out atmospheric steam curing in the process of producing, and makes product have certain initial strength and guarantees finishing of subsequent production operation.When the prescription water consumption of fibre cement Side fascia surpasses 40%, use existing maintenance process, cause product not have problems such as intensity, easy bubble easily.Conventional maintenance process thinks can have initial strength quickly in order to make cement products, and product needed is carried out the steam curing of higher temperature and big humidity, can accelerate the aquation reflection speed of cement like this, reaches the purpose of accelerating the product strength development.It is considered herein that; the fibre cement Side fascia is a kind of special fibre cement product; its prescription water consumption is big, and the cement granules spacing is big, and the wet strength of product is mainly provided by MC plasticizer such as (methylcellulose); if the early stage curing temperature at product is too high; humidity is excessive, will cause the MC decomposition failure or absorb water excessively, causes the sheet material internal structure loose; in any case later stage maintenance, the strength development of product all can be very slow.Have only when the abundant hydration reaction of cement warp, the abundant filling concrete particle of hydrated cementitious product gap forms the space network structure, behind the replacement MC, just can carry out the steam curing of high temperature, high humidity, and the intensity of product could rapid formation.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of fibre cement Side fascia atmospheric steam curing technology, and this technology can make product have higher initial strength.
In order to address the above problem, to the invention provides a kind of fibre cement Side fascia atmospheric steam curing technology and comprise the steps:
1) after the extrusion molding of fibre cement Side fascia, under 20-30 ℃, the fibre cement Side fascia carried out 10-20 hour low-temperature steam maintenance operating, maintenance humidity is controlled at 60-80%, under this environment, MC can normally play a role, can decomposition failure, and make product have wet strength.Simultaneously, it is excessive that MC can not absorb water yet, and causes the forfeiture of product wet strength.Treat the abundant aquation of cement in the fibre cement Side fascia, form the space network structure, behind the replacement MC, enter next maintenance stage again;
2) carry out 5-15 hour high temperature steam curing under 60-90 ℃, maintenance humidity is controlled at 70-90%.
The present invention carries out steam curing by the mode that above-mentioned low-temperature steam maintenance operating and high temperature steam curing combine to the fibre cement Side fascia, thereby makes product have higher initial strength, and product is not easy to produce bubble, has improved product quality and production efficiency.Other atmospheric steam curing mode does not all reach effect of the present invention.
The specific embodiment
Fibre cement Side fascia atmospheric steam curing technology of the present invention specifically comprises following processing step:
At first, after the extrusion molding of fibre cement Side fascia, the fibre cement Side fascia carried out 10-20 hour low-temperature steam maintenance operating under 20-30 ℃, maintenance humidity is controlled at 60-80%, treats in the fibre cement Side fascia to enter next maintenance stage again after the cement final set;
2) carry out 5-15 hour high temperature steam curing under 60-90 ℃, maintenance humidity is controlled at 70-90%, to avoid the excessive fibre cement Side fascia saturated intensity that influences that absorbs water that causes of humidity.
By the mode that above-mentioned low-temperature steam maintenance operating and high temperature steam curing combine the fibre cement Side fascia is carried out steam curing, thereby make product have higher initial strength, and product is not easy to produce bubble, improved product quality and production efficiency.
If adopt existing maintaining process, when the prescription water consumption of fibre cement Side fascia surpassed 40%, product did not have intensity in 24 hours, generally needed just to have certain intensity in 48-72 hour.And after adopting this maintaining process, product promptly had good intensity in 24 hours, had greatly improved production efficiency.Simultaneously, existing maintenance causes the product surface suction saturated easily, when follow-up autoclave curing, and the surface moisture gasification, thus produce bubble.The incidence of general bubble is more than 50%, use this maintaining process after, the incidence of blibbing is below 0.5%.
In sum; being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention, therefore; all any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a fibre cement Side fascia atmospheric steam curing technology comprises the steps:
1) after the extrusion molding of fibre cement Side fascia, under 20-30 ℃, the fibre cement Side fascia carried out 10-20 hour low-temperature steam maintenance operating, maintenance humidity is controlled at 60-80%, treats in the fibre cement Side fascia to enter next maintenance stage again after the cement final set;
2) carry out 5-15 hour high temperature steam curing under 60-90 ℃, maintenance humidity is controlled at 70-90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101032425A CN102139512B (en) | 2010-01-28 | 2010-01-28 | Atmospheric steam curing technique for fiber cement external wall panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101032425A CN102139512B (en) | 2010-01-28 | 2010-01-28 | Atmospheric steam curing technique for fiber cement external wall panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102139512A true CN102139512A (en) | 2011-08-03 |
| CN102139512B CN102139512B (en) | 2012-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101032425A Active CN102139512B (en) | 2010-01-28 | 2010-01-28 | Atmospheric steam curing technique for fiber cement external wall panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN102139512B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642243A (en) * | 2012-02-28 | 2012-08-22 | 上海中技桩业股份有限公司 | Normal-pressure hot water curing process of concrete pile |
| CN108656328A (en) * | 2017-03-27 | 2018-10-16 | 北新集团建材股份有限公司 | The steaming pressuring curing process of fiber cement board |
| CN109469213A (en) * | 2018-11-21 | 2019-03-15 | 云南昆船设计研究院有限公司 | A kind of lightweight wall plate and its production technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580505A (en) * | 1995-06-06 | 1996-12-03 | Alzeta Corporation | Process and apparatus for forming perforated ceramic fiber plates |
| CN1410238A (en) * | 2002-11-18 | 2003-04-16 | 蒋元海 | Manufacturing method of polypropylene fiber reinforced prefabricated steel concrete square pole |
| CN2742067Y (en) * | 2004-11-08 | 2005-11-23 | 四川嘉华企业（集团）股份有限公司 | Fiber cement roof tile |
| CN100410040C (en) * | 2005-07-12 | 2008-08-13 | 陈孝苗 | Manufacturing technology of composite light insulating wall board |
| KR20090095430A (en) * | 2008-02-19 | 2009-09-09 | 박찬오 | Drying system of clay board using dry board |
-
2010
- 2010-01-28 CN CN2010101032425A patent/CN102139512B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642243A (en) * | 2012-02-28 | 2012-08-22 | 上海中技桩业股份有限公司 | Normal-pressure hot water curing process of concrete pile |
| CN108656328A (en) * | 2017-03-27 | 2018-10-16 | 北新集团建材股份有限公司 | The steaming pressuring curing process of fiber cement board |
| CN108656328B (en) * | 2017-03-27 | 2019-10-11 | 北新集团建材股份有限公司 | The steaming pressuring curing process of fiber cement board |
| CN109469213A (en) * | 2018-11-21 | 2019-03-15 | 云南昆船设计研究院有限公司 | A kind of lightweight wall plate and its production technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102139512B (en) | 2012-08-15 |
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