CN201730239U - Calcium silicate composite magnesite plate - Google Patents
Calcium silicate composite magnesite plate Download PDFInfo
- Publication number
- CN201730239U CN201730239U CN2010202692235U CN201020269223U CN201730239U CN 201730239 U CN201730239 U CN 201730239U CN 2010202692235 U CN2010202692235 U CN 2010202692235U CN 201020269223 U CN201020269223 U CN 201020269223U CN 201730239 U CN201730239 U CN 201730239U
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- plate
- calcium silicate
- silicate board
- magnesite
- magnesia cement
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Abstract
The utility model discloses a calcium silicate composite magnesite plate, which belongs to the field of building materials and comprises a calcium silicate plate and a magnesite cement plate arranged on the calcium silicate plate. At least one reinforcing material layer is doped inside the magnesite cement plate. The calcium silicate composite magnesite plate has good bending strength, high strength and shock resistance, low liability of deformation and no moisture regain and halogenation, and retains the rigidity of the calcium silicate plate. The long fiberglass or fiberglass meshed fabric greatly improves the elasticity, deflection and bending strength of the plate, and the connection between the calcium silicate plate and the magnesite cement plate is firm and permanent.
Description
Technical field
The utility model relates to building materials field, relates in particular to a kind of compound magnesite plate of calcium silicates that has rigidity, flexural strength and fire resistance property concurrently.
Background technology
Calcium silicate board is to issue biological reason, chemical reaction with siliceous material, calcareous material at HTHP, generating " holder shellfish mullite " crystal is main calcium silicates, its raw material generally adopt quartz sand as siliceous material, cement, lime etc. are calcareous material, are reinforcing material with cellulose, asbestos.Different raw material and proportioning thereof have determined the generation quantity of " holder shellfish mullite " crystal in the calcium silicate board product.The raw material that silicon and calcium content are high more may generate more " holder shellfish mullite " crystallization more, and the physical property of product is just good more.
Calcium silicate board has good physical and chemical performance, and it is with a wide range of applications, and the internal partition wall from all kinds of buildings from the floor to the ceiling, but also is applied to air-line system and passive fire prevention system to going along with sb. to guard him exterior wall.Yet, because the restriction of calcium silicate board production technology, asbestos, cellulose, wood fiber etc. are short fiber material, the calcium silicate board of being produced is too crisp, and is easily cracked, the instructions for use that does not reach some special occasions on elasticity, amount of deflection, flexural strength, as be used on the airduct, the finished product of producing is too crisp, easily splits, and is easily destroyed during the crossed construction operation.
Existing calcium silicate board is owing to be subjected to the technology restriction, flexural strength can not surpass 12MPa, when being used for the partition wall furred ceiling, such physical and mechanical property is enough, but when being used for the bigger occasion of some anti-impact forces, as fire resistant air-duct, shock resistance body of wall, labeled door, smoke exhaust ventilator kuppe, this sheet material is cracked easily, too crisp.Now the mode that adopts angle steel to add the keel frame is usually strengthened the intensity of integrated member, but this causes the increase of building cost and the drawback that the building deadweight strengthens again, has limited application and the popularization of calcium silicate board in these fields.
Publication number is that the Chinese patent application of CN1939873A discloses a kind of calcium magnesium composite plate, belong to a kind of calcium silicate board with microporous, make by certain prescription by calcium silicate powder, organosilicon, land plaster and string etc., it has solved the problem of returning halogen, moisture regain, aspect flexural strength, strengthen to some extent, but rigidity is not high.
Publication number is that the Chinese patent of CN201494068U discloses a kind of compound magnesite plate, and it is lumped together by magnesite plate and base plate and panel glue, and what its base plate and panel adopted is the middle and higher density beaver board, belongs to organic material, and fire endurance is not long; Have internal stress between the flaggy, use yieldingly for a long time, and it is indifferent to fit, and easily layering comes off under the long term of internal stress, also occurs returning halogen, moisture regain phenomenon easily.
Summary of the invention
Fit indifferent in order to overcome each interlayer of existing compound magnesite plate, easily layering comes off, and return halogen, the serious defective of moisture regain, the utility model aims to provide the compound magnesite plate of a kind of calcium silicates, it has the advantage of calcium silicate board and magnesite plate concurrently, also lays one deck reinforcing material at least in the magnesite plate, under rigidity, all good prerequisites of flexural strength, guarantee that sheet material is light, thin, and alleviated the problem of returning halogen, moisture regain.
To achieve these goals, the technical scheme that the utility model adopted is: the compound magnesite plate of described calcium silicates, comprise calcium silicate board, and its design feature is to be provided with the magnesia cement plate on calcium silicate board; One deck reinforcing material at least mixes in the described magnesia cement plate.
In the utility model, described reinforcing material is one or more in fiberglass gridding cloth, long glass fibres material, card clothing, the polyester fiber cloth.
Thickness of slab 5mm ~ the 34mm of the compound magnesite plate of described calcium silicates, the thickness of slab 3mm ~ 12mm of calcium silicate board wherein, the thickness of slab 2mm ~ 22mm of magnesia cement plate.
At first with commercially available calcium silicate board dedust, squirt processing, then the magnesia cement slurry is laid on the calcium silicate board upper side, on this magnesia cement pulp layer, lay layer of glass grid cloth or long glass fibres then, on this fiberglass gridding cloth or long glass fibres layer, lay one deck magnesia cement slurry afterwards, repeat said process, lay layer of glass grid cloth or long glass fibres on this magnesia cement pulp layer, up to the thickness that reaches use occasion, at last by the maintenance moulding, cutting, finished product.This processing mode is the equal of compound between cement and the cement, is connected firmly, forever.
Described long glass fibres refers to fibre length generally greater than the glass fiber of 5mm.
By said structure, the utlity model has fire-proof function, fire endurance was at least 4 hours, and was difficult for fragmentation, was applicable to the place that some need sheet material to have high rigidity and flexural strength, as labeled door, anti-smoke exhaust pipe etc.Utilize the utility model to make airduct etc., will no longer need angle steel or keel frame as liner, the utility model also can adopt light material to substitute original thicker calcium silicate board, directly adopts the compound mode moulding of calcium silicate board and magnesia cement plate.
Because calcium silicate board has good water imbibition and air permeability and good, be commonly called as and can breathe, after the magnesia cement layer moisture absorption, moisture content is absorbed by the calcium silicates layer rapidly, and discharges at any time, volatilizees.Owing in the magnesia cement prescription, adding the suitable anti-halogen agent of returning; when micro-halogenic molecule is separated out; also can little by little be penetrated in the calcium silicates flaggy, and be protected, so the compound magnesite plate of calcium silicates described in the utility model has solved the magnesite plate moisture absorption, returned the halogen phenomenon.
Compared with prior art, the beneficial effects of the utility model are: the utility model flexural strength is good, fire resistance property is strong, has the high strength impact resistance, the rigidity that has kept calcium silicate board simultaneously, long glass fibres of inlaying in the magnesia cement flaggy or fiberglass gridding cloth have increased elasticity, amount of deflection and the flexural strength of sheet material widely, and are connected firmly between calcium silicates flaggy and the magnesia cement flaggy, forever, do not get damp again, halogenation.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the schematic cross section of a kind of embodiment of the utility model.
In the drawings
The 1-calcium silicate board; 2-magnesia cement plate; 3-strengthens framework material.
The specific embodiment
The compound magnesite plate of a kind of calcium silicates as shown in Figure 1, comprises calcium silicate board 1, is provided with magnesia cement plate 2 on calcium silicate board 1; Mixing three layers in the described magnesia cement plate 2 strengthens framework material 3, and described enhancing framework material 3 is preferably fiberglass gridding cloth or long glass fibres.
The preferred thick 9mm of the compound magnesite plate of described calcium silicates plate, calcium silicate board 1 thickness of slab 6mm wherein, magnesia cement plate 2 thickness of slab 3mm.
Used magnesia cement slurry is mainly modulated by a certain percentage by magnesium oxychloride and bittern and is formed, wherein MgCL
2The concentration of bittern is adjusted according to temperature:
When 5 ℃ ~ 15 ℃ of environment temperatures, MgCL
2Bittern concentration is adjusted to 30 Baume degrees;
When 15 ℃ ~ 20 ℃ of environment temperatures, MgCL
2Bittern concentration is adjusted to 26 Baume degrees;
When 20 ℃ ~ 30 ° of environment temperatures, MgCL
2Bittern concentration is adjusted to 24 Baume degrees;
When environment temperature is more than 30 ℃, MgCL
2Bittern concentration is adjusted to 22 Baume degrees.
And at MgCL
2Bittern is with before the MgO rubber powder mixes, every 0.75kgMgCL
2Bittern adds the 1ml85 industrial phosphoric acid as retarding agent, will add the MgCL of 0.75kg by the MgO rubber powder of every 1kg then
2Bittern, it is stand-by that the 12 order wood chips that other adds 50g are mixed and made into the magnesia cement slurry.
With commercially available calcium silicate board dedust, squirt processing, then the magnesia cement slurry for preparing is laid on the calcium silicate board upper side, on this magnesia cement pulp layer, lay layer of glass grid cloth or long glass fibres then, long glass fibres also can mix in the magnesia cement slurry, on this fiberglass gridding cloth or long glass fibres layer, lay one deck magnesia cement slurry afterwards, repeat said process, lay layer of glass grid cloth or long glass fibres on this magnesia cement pulp layer, certainly long glass fibres also can mix in the magnesia cement slurry, up to the thickness that reaches use occasion, by the maintenance moulding, cut at last, finished product.
Claims (3)
1. the compound magnesite plate of calcium silicates comprises calcium silicate board (1), it is characterized in that, is provided with magnesia cement plate (2) on calcium silicate board (1); Mixing at least in the described magnesia cement plate (2), one deck strengthens framework material (3).
2. the compound magnesite plate of calcium silicates according to claim 1 is characterized in that, described enhancing framework material (3) is one or more in fiberglass gridding cloth, long glass fibres material, card clothing, the polyester fiber cloth.
3. the compound magnesite plate of calcium silicates according to claim 1 is characterized in that, the compound magnesite plate of described calcium silicates thickness of slab 5mm ~ 34mm, calcium silicate board (1) thickness of slab 3mm ~ 12mm wherein, magnesia cement plate (2) thickness of slab 2mm ~ 22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202692235U CN201730239U (en) | 2010-07-23 | 2010-07-23 | Calcium silicate composite magnesite plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202692235U CN201730239U (en) | 2010-07-23 | 2010-07-23 | Calcium silicate composite magnesite plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730239U true CN201730239U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202692235U Expired - Fee Related CN201730239U (en) | 2010-07-23 | 2010-07-23 | Calcium silicate composite magnesite plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535734A (en) * | 2012-03-05 | 2012-07-04 | 河北联合大学 | Fiber-reinforced multilayer cement board and manufacturing method thereof |
| CN106245842A (en) * | 2016-09-14 | 2016-12-21 | 南京工业大学 | Wood wool cement board with multilayer structure and processing method thereof |
-
2010
- 2010-07-23 CN CN2010202692235U patent/CN201730239U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535734A (en) * | 2012-03-05 | 2012-07-04 | 河北联合大学 | Fiber-reinforced multilayer cement board and manufacturing method thereof |
| CN106245842A (en) * | 2016-09-14 | 2016-12-21 | 南京工业大学 | Wood wool cement board with multilayer structure and processing method thereof |
| CN106245842B (en) * | 2016-09-14 | 2018-07-10 | 南京工业大学 | Wood wool cement board with multilayer structure and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |