CN1173105C - Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method - Google Patents
Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method Download PDFInfo
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- CN1173105C CN1173105C CNB021139687A CN02113968A CN1173105C CN 1173105 C CN1173105 C CN 1173105C CN B021139687 A CNB021139687 A CN B021139687A CN 02113968 A CN02113968 A CN 02113968A CN 1173105 C CN1173105 C CN 1173105C
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- 239000002131 composite material Substances 0.000 title abstract 3
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Abstract
The present invention discloses a composite wall plate with a reinforced concrete lateral face made of waste textile fibres and a manufacturing method thereof. The composite wall plate comprises a middle layer which is aerated plastics, mineral cotton and a honeycomb structure or heat insulating and sound insulating materials of foaming concrete. The concrete lateral surface is firmly combined with the middle layer by vibration and roll extrusion; the cross section of the wall plate can present a sandwich structure. The wall plate is characterized in that the concrete lateral surface is formed by that felt (23) made of waste textile fibers and at least the layer of alkali proof glass fibre gingham (24), which is arranged at the outer surface of the concrete lateral surface, are impregnated with cement slurry (25). When the felt (23) and the glass fibre gingham (24) are impregnated, air inside the felt (23) and the glass fibre gingham (24) are squeezed out, and the cement slurry (25) is vibrated with an insert type vibratory pump (7). The wall plate has the advantages of strong bending strength, no corrosion, low manufacturing cost, low selling price, simple manufacturing process and convenient operation and solves the problem of the refuse treatment of waste textiles, which is difficult to solve for a long time.
Description
Technical field
The present invention relates to a kind of waste textile fibre reinforced concrete side surface combined wall board of (inside and outside two sides and middle heat insulating material are formed).The invention still further relates to the manufacture method of this wallboard.
Background technology
The combined wall board that uses is of a great variety now, and structure is different.More advanced as, a kind ofly strengthen the combined wall board that concrete side and middle heat insulating material are formed with steel fibre and plastic optical fibre orientation.This wallboard is lighter than former wallboard weight, and better heat insulation and sound insulation property and easier installation are arranged.But this plate has 2 deficiencies, the one, because of need steel fibre and plastic optical fibre particularly need than complex apparatus, so manufacturing cost higher relatively (price is just high); The 2nd, the technology relative complex, operation easier is higher.
What is more important, objectively this wallboard can not adopt waste spinning fabric fiber.And the processing of waste spinning fabric fiber is the problem of whole world headache always.Traditional processing mode is two kinds: bury and burn.According to the data introduction, in the rubbish that the U.S. buries the fifties, the intensity of nylon etc. does not reduce so far.What could be still a fan by natural degradation to a large amount of synthetic fibers that exist in age actually in the textile rubbish.The soil that consequently takies is more and more.Burning can be handled immediately and can obtain certain heat.But the cost that the environment pollution that the waste gas that solves eliminating causes is paid is much larger than the benefit that heat brought that produces.And area such as Wenzhou, Zhejiang felt that waste spinning fabric fiber is made in recent years, also only for Ministry of Civil Affairs's purchase with the relief victims of the disaster, its demand only accounts for about 20% of production, in addition can not find other outlets again.In sum, for a long time, the processing of waste spinning fabric fiber is a still unsolved difficult problem always.
A few years ago, market a kind of waste spinning fabric fiber that uses occurs and adds the wallboard that the low alkali cement mixing is done biside plate and added the lightgage steel joist combination.But because of needing complicated production line to finish, must apply immense pressure when being shaped to the even mix cement of the useless fiber that is processed into cotton shape in addition, treat that the sheet material sclerosis needs certain hour, and it be longer to take the equipment time, so the cost of production height, price is also just high; Simultaneously, since agglomerating for fiber being mixed thoroughly do not get together in slurry, have to control fibre length, so just lost flexural strength, so the biside plate flexural strength is poor; Also have, in the easy corrosion of metal keel, the especially south of the River wet environment, quality just more be cannot say for sure to demonstrate,prove.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of combined wall board with waste textile fibre reinforced concrete side surface is provided, this wallboard has kept the advantage with cornice sheathing, and has a stronger flexural strength, non-corroding, manufacturing cost is lower, price is low, and has solved and fail the handling problem of the waste spinning fabric rubbish resolved for a long time.A kind of method of making this wallboard is provided simultaneously, and this method does not need complicated production equipment, and production technology is simple, and is easy to operate.
Technical solution of the present invention is, a kind of combined wall board with waste textile fibre reinforced concrete side surface with following structure is provided, its intermediate layer is insulation, the sound insulation materials of porous plastics, mineral wool, honeycomb structure or foamed concrete, concrete side and intermediate layer make both strong bonded by vibration and roll extrusion, be characterized in, described concrete side be the felt made with waste spinning fabric fiber and at least the alkaline-resisting glass woven roving of its external surface one deck steep water material-mud form.
As improvement, the section configuration of this combined wall board also can be the sandwich cake structure of multilayer in concrete side (plate) the therebetween intermediate layer that multilayer forms by glass cloth, felt steep water material-mud except that the above sandwich structure.The exterior wall that this kind sandwich structure combined wall board can be done to build and the load bearing wall of two-layer local-style dwelling houses.
As further improvement, the honeycomb structure in described intermediate layer can be following material and structure: the alkaline-resisting glass grid cloth clamp felt that will flood is pressed into the flat hypotenuse sheet material of the similar corrugated tile of transverse shape in mould after, be cut into strip according to wallboard thickness for its axial length, again by flat lean against flat, open face is to uncovered, and composing and laying out forms.
As further improving, this combined wall board also can comprise with one deck or which floor dipping felt and the glass cloth chase mortise frame that pressurized after-hardening moulding is stained with the cement slurry pressure again in mould again.After adopting this frame that the chase mortise structure arranged, combined wall board need not metal fastenings when installing, and only is coated with in groove with milky white adhesive or cement slurry, treats chase mortise interlock sclerosis.
The present invention is as follows with the manufacture method of the combined wall board of waste textile fibre reinforced concrete side surface: at first make the fibre-reinforced concrete medial surface of waste spinning fabric, it is layered on the flat board of vibration, repave the intermediate layer, make the concrete lateral surface that textile fabric strengthens at last, it is covered above the intermediate layer, and lateral surface carried out roll extrusion, be characterized in, make in the concrete of textile fabric enhancing, the processing step of lateral surface is as follows: make felt and alkaline-resisting glass woven roving compound and squeeze out air in both simultaneously after enter in the impregnating bath, and be attached on the cylinder with the speed of 2～3.5 meters of per minutes and in cement paste, move ahead, meanwhile, be positioned at the plug-in type oscillating column pump work in the stain immersion trough, the felt and the alkaline-resisting glass woven roving that flood behind the groove are squeezed away redundant sizing agent, repave on the dull and stereotyped mould and squeeze out air between template and felt and the glass cloth; In the time of will being combined into wallboard with the intermediate layer, the glass cloth of its inner panel is below felt, and the glass cloth of its outer side panel is on felt.
In above operation, the compound and roll extrusion of felt and glass cloth enters in the dipping tank, and the purpose of vibration simultaneously is that felt is combined closely with glass cloth, makes the fiber of felt enter into the aspect of glass cloth, and it is better to make it globality.Simultaneously, the solia particle in the cement slurry can be entered in felt and the glass cloth internal fiber clump, avoid in felt dipping, occurring absorbing the state that liquid is many, solid is few and form irrational water/binder ratio and lose intensity.This vibration also can prevent the precipitation of solid grain.
Combined wall board of the present invention will very thin (be 5mm as thickness) glass cloth and the concrete side that strengthens of felt and quite thick (is 80mm as thickness) in the middle of insulation, insulation material layer adhere to each other.To bottom surface shutter vibration and roll extrusion is connected in the intermediate layer material of surface layer to the surface layer impregnate layer.Such structure provides a goodish heat-insulating sound-insulating effect.
The unordered trend of fiber in the employed felt in the combined wall board of the present invention side, the shock resistance of sheet material is provided, its fiber is evenly distributed, there is not the cotton shape fiber balling phenomenon that produces because of mechanical agitation in the waste spinning fabric fiberboard of prior art, add skin and be the woven roving that plane 90 degree distribute, the resistance to fracture ability of this wallboard is further improved.
Final product strength can change in very wide scope, and this depends on concrete use occasion.Select different cores for use, adjust the thickness and the number of plies of felt and glass cloth, thereby obtain needed optimum performance.
In sum, this combined wall board keeps the advantage of existing combined wall board, and promptly in light weight under the requirement of equality strength (concrete side proportion is 1.1g/cm
3), have well heat insulation, insulation, sound insulation value, be easy to install.If supporting, can form what is called " the movable partition ", " the collapsible partition of fast-assembling " etc. easily with the large bay dwelling house.Compare with the prior art wallboard, the present invention so have stronger flexural strength, there is no any corrosion owing to adopt glass cloth and felt steep water material-mud to make side facing.Simultaneously, turn waste into wealth, both solved the textile garbage disposal problem of fine solution of always failing for many years, greatly reduced the material cost of this combined wall board again, do not need the expensive equipment of complicated valency, so low cost of manufacture (reducing by 50%～70% than the manufacturing cost of existing fibrous concrete layer), price are also low in addition.Adopt manufacture method of the present invention not need complicated production equipment, and production technology is simple, easy to operate.
Description of drawings
Fig. 1 is the glass cloth and the felt impregnation technology schematic diagram of this combined wall board side facing.
Fig. 2 is the structural representation of this combined wall board (section is a sandwich structure).
Fig. 3 is the structural representation of another embodiment of this combined wall board (section is the sandwich cake structure of multilayer).
Fig. 4 does the intermediate layer for this combined wall board honeycomb structure and the structural representation of chase mortise frame is arranged.
Fig. 5 becomes the stacks of sheets schematic diagram in the making step in this combined wall board honeycomb structure intermediate layer.
Fig. 6 is for being cut into the strip schematic diagram in the making step in this combined wall board honeycomb structure intermediate layer.
Fig. 7 is a honeycomb spliced schematic diagram in this combined wall board honeycomb structure making step.
Structural representation when Fig. 8 is porous plastics for this combined wall board intermediate layer.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Referring to Fig. 1, Fig. 2, combined wall board with the fibre-reinforced concrete side of waste spinning fabric of the present invention, the heat-insulating and noise-insulating material of porous plastics, mineral wool, foamed concrete or the honeycomb structure that its intermediate layer 15 is a prior art (but material is different with preparation method, will describe in detail below).Concrete side 16 makes both strong bonded with combining by (bottom surface) vibration and (surface) roll extrusion of intermediate layer 15.Feature of the present invention is: two concrete sides 16 of wallboard be the felt 23 made with waste spinning fabric fiber and at least the alkaline-resisting grid glass of its external surface one deck cloth 24 steep water material-muds 25 form.What wherein alkaline-resisting glass woven roving (glass cloth) 24 employings were alkaline-resisting is to consider that alkali is to the corrosion of glass cloth in the low alkali cement; And the employing grid is the needs that improve side panel resistance to fracture ability; Then be meant according under the enough prerequisite of wallboard practical application desirable strength as for one deck at least, consider economical with materials cost (the how a cost of many layer of glass fiber fabric); Be used for its surface and be meant that alkaline-resisting glass woven roving 24 covers the felt external surface, when making (in the concrete side 16) inner panel, alkaline-resisting glass woven roving 24 is placed on the bottom surface of felt 23, when making (in the concrete side 16) outer side panel, alkaline-resisting glass woven roving 24 be placed on felt 23 above.
Introduce the manufacture method of combined wall board of the present invention below in detail.
At first, make the inside and outside concrete side plate of waste spinning fabric fibre-reinforced (in the concrete side 16).
(1) make or buy felt 23:
The production of main raw material(s) felt 23 used in the present invention early has ripe technology.The so-called textile rubbish of the raw material that uses is the leftover bits of ready-made clothes factory, useless mashed silk, the useless short fiber that the carpet weaving mill cuts, the mashed clothing of destructor plant, broken socks, cloth waste, the useless nylon etc. spent of textile mill.These things are processed into cotton shape with simply constructed opener, are pressed into felt with felting machine then.All there is production in a lot of producers in area, Cangnan, Wenzhou, Zhejiang.
This regenerated fiber felt is cheap, buys 1 yuan/m of valency in the Cangnan
2About, the price of the glass cloth of quite thick 0.15mm.But in body of wall, provide high strength top layer 5mm above thickness (the glass cloth of the same price but can only provide the thickness of 0.15mm).A large amount of synthetic fibers that are difficult to natural degradation that exist are headachy things as garbage disposal in textile rubbish, use the weather resisteant that body of wall by chance is provided as building materials.
(2) selection of dipping sizing agent:
Cement has good performance, so the side panel of the combined wall board of prior art is generally selected cement for use.In the felt that this product uses, also contain a large amount of natural fibers, as cotton, fiber crops, hair etc.Ordinary Portland cement alkalescence is too high, and its 11～12PH value can reduce the intensity of these fibers quickly.Therefore this product should use low alkali cement (being that pH value is 9～10 cement).Chlorine magnesia cement pH value is not high in addition, and result of use is also good.
Slurry with the low alkali cement preparation will add water reducing agent reduction denseness, makes fiber be easy to soak into.To add retarding agent when temperature is high.
To consider during chlorine magnesia cement preparation slurry goods frosting, return halogen, so adding resin and phosphoric acid (as the propyl benzene emulsion) improve it.A chlorine magnesia formula of size provided herein:
Name of an article quantity (part)
Light calcined magnesia 100
6 aqueous magnesium chlorides 60
Water 60
Propyl benzene emulsion 5-10
Phosphoric acid 2-4
The levigate quartz that also can add 10%-20% in slurry can reduce cost, and improves case hardness.This kind slurry only need stir can flood felt.
Below all belong to prior art, so do not describe in detail.
(3) impregnation technology of felt glass cloth (referring to Fig. 1):
The felt 23 of felt volume 1 and the speed (speed with per minute 2.5～3 meters be the best) of the alkaline-resisting glass side network cloth 24 of glass yardage roll 2 with 2～3.5 meters of per minutes enter impregnating bath 4 through bending roller 3.Along the operation forward in cement slurry 25 of power-actuated master rotor 5, felt 23 is attached on the master rotor 5, by the rubber nip drum 6 and the master rotor 5 collaborative air that squeeze out in felt, the alkaline-resisting glass woven roving be located in the impregnating bath 4.Pressure is provided by adjustable reed 14.
Plug-in type oscillating column pump 7 is arranged in the impregnating bath 4, and oscillating column pump 7 is located lateral (parallel with master rotor 5) middle and lower part in impregnating bath 4 preferably, does not directly contact felt 23 and alkaline-resisting glass woven roving 24.Oscillating column pump 7 work can make solid fine grain toward bottom precipitation, enters into felt 23 and alkaline-resisting glass woven roving 24 inside under the situation that obtains energy, avoids the unreasonable proportioning that solid is few in the fibrage in the nature dipping process, liquid is many and loses intensity.
Felt that dipping is good and glass cloth squeeze away redundant sizing agent by the rubber cylinder 8 of a pair of adjustable clearance, cross and turn to tube 9, are layered on the Plastic Flat template die 11 by cylinder 10.Adjacent transverse slat is driven by one group of power transmission cylinder 12 and moves ahead, and squeezes out air between template and felt, the glass cloth by the rubber nip drum 13 of being located at dull and stereotyped mould 11 tops at last, and impregnation technology is then finished.By cylinder 12 template and good felt and the glass cloth of dipping are delivered on the vibrator again, for the making of next procedure wallboard.Master rotor 5 can be made of corrosion resistant plate that bores full hole or stainless (steel) wire.
Above impregnation technology is only finished the fibrous concrete of a side, and make corresponding another side and use same equipment, but felt volume 1 and 2 transpositions of glass yardage roll (be glass cloth last, felt is down).
(4) making of the selection of core and wallboard:
Select different cores according to different use occasions.This can change product in the requirement of aspects such as intensity, heat insulation, sound insulation, cost in wide scope.Here set forth the making that the intermediate layer is the wallboard of four kinds of cores:
1, cellular-plastic panels such as foamed styrene and microvesicle polyvinyl chloride and mineral wool board are as the wallboard (as Fig. 2, shown in Figure 8) in intermediate layer.
The manufacturing of this kind wallboard is the easiest, as long as stick side panels that dipping is got well but unhardened felt 23, alkaline-resisting glass woven roving 24 compositions respectively on above-mentioned sheet material two sides, roll out the air of felt glass cloth and core then with rubber cylinder, vibrate (because roll extrusion wallboard and vibration template are prior art by soffit formwork, so rubber cylinder and vibrator and template are not shown), the side panel that dipping felt and glass cloth are formed firmly is connected with intermediate layer (core) 15, promptly is made into the combined wall board of the sandwich structure of section configuration.(the dipping chlorine magnesia goods that 20mm is thick also can be done the load-bearing sheet material of furniture.Because of its good fireproof performance, press pattern and can be made into beautiful labeled door.) by dispatching from the factory (but also tankage tenon frame of this kind wallboard, the concrete practice is seen below) behind the ten days maintenance excision burr.The weight of this kind wallboard is lighter, is generally 200～300kg/m
3
2, the wallboard (as Fig. 4, Fig. 5, Fig. 6, shown in Figure 7) in the middle of honeycomb structure is done.
The material of making honeycomb structure also utilizes the felt of this cheapness, and 1mm is thick to get final product.With two-layer or three layers of honeycomb that alkaline-resisting glass woven roving is made, can improve the fire rating of body of wall.
The side panel of forming with the felt that has soaked slurry and glass cloth is layered on the film, above the alternating floor film spread one deck felt again, formation one is so in layer folded.Be layered on then on the mould of half of shape, the pressing mold with same shape presses above, and sclerosis back just can obtain the similar corrugated tile shape of transverse shape but ripple concavo-convex is not that (a single recessed or protruding cross section of seeing is for circular arc but flat hypotenuse
Shape or
Shape) bulk article (as shown in Figure 5, water the thick fibrous concrete of 10mm in the one side of this corrugated sheet, new mould.Upper and lower mould can be used with.)
Folded neat the good this corrugated plate of sclerosis, according to the thickness severing of body of wall 22 (as shown in Figure 6) into strips, lean against flatly by flat on the side panel that dipping felt and glass cloth are formed again, open face is combined into cellular 17 (as shown in Figure 7) to uncovered positional alignment.As making the wallboard of the above thickness of 6cm, the junction on honeycomb both sides must be coated cement slurry and be made it to cement, thereby strengthens integral intensity.Honeycomb structure can be manual composing and laying out, and also available machinery is composed and laid out, and piecing together the side panel that covers dipping felt and glass cloth composition on the good honeycomb face again, gently presses with cylinder, makes it bonding fully.When composing and laying out honeycomb, also to install the frame 18 (as shown in Figure 4) of groove 19 (mother) tenon 20 (public affairs).Frame 18 usefulness one decks of groove 19 (mother) tenon 20 (public affairs) or which floor dipping felt of the present invention and the pressurized after-hardening moulding in mould of glass cloth are pressed with cement slurry and are bonded at the frame 18 that combined wall board becomes trough of belt 19 tenons 20 all around.By heating cure or natural curing, but the just demoulding in second day.Use plastic formwork need not coat release agent, energy conveniently stripped (then is to solidify inadequately if any adhesion).As long as this combined wall board of making is by the ten days maintenance, and the excision burr can dispatch from the factory.Transform a little if will produce the streamline of glass line watt, the honeycomb sheet 21 of production Fig. 5 of the present invention just can obtain bulk product, and this can satisfy on the higher streamline of automation required.
Because the special light (200kg/m of honeycomb wall
3), the large tracts of land wallboard more than 4 square metres in transportation, install also and to be very easy to.
3, cement or chlorine magnesia cement foamed core material are made the wallboard in intermediate layer.
More than the foaming technique of two kinds of cement all very ripe, suggestion herein be in order to obtain the bigger foaming space, in slurry, preferably to add the propyl benzene emulsion (so prescription is slightly) 20% or more.
On the side panel of forming by dipping felt and glass cloth of the frame 18 of loading onto trough of belt 19 tenons 20, fill the foaming slurry that stirs, wipe off along frame, treat that initial set then completes the side panel that dipping felt and glass cloth are formed by intensity slightly on the top layer, use the rubber cylinder deaeration then, the top layer is firmly linked to each other with core, be cement foamed core wallboard (because of being routine techniques, so activities is not shown) after the sclerosis.Maintenance and excision burr by ten days can dispatch from the factory.The weight of this kind wallboard is the twice of preceding several wallboards, i.e. 500kg/m
3, can significantly improve intensity but adopt this material to do the intermediate layer.
If improve the bulk strength of body of wall, wallboard also can be made into two layers, three layers, four layers core 15 and the sandwich cake shape of the multilayer wallboard of the side panel both sides adhesion be made up of dipping felt and glass cloth, and like this, every performance increases substantially (as shown in Figure 3).The load bearing wall that such wallboard can be made exterior wall and double-decker uses.
Claims (5)
1, a kind of combined wall board with waste textile fibre reinforced concrete side surface, its intermediate layer (15) is insulation, the sound insulation materials of porous plastics, mineral wool, honeycomb structure or foamed concrete, concrete side (16) and intermediate layer (15) make both strong bonded by vibration and roll extrusion, it is characterized in that: described concrete side (16) be the felt (23) made with waste spinning fabric fiber and at least the alkaline-resisting glass woven roving of its external surface one deck (24) steep water material-mud (25) form.
2, combined wall board according to claim 1 is characterized in that: its section is the concrete side that multilayer is formed by glass cloth, felt steep water material-mud, the sandwich cake structure of the multilayer in (16) therebetween intermediate layer (15).
3, combined wall board according to claim 1 and 2, it is characterized in that: after the honeycomb structure (17) of described intermediate layer (15) is meant that the alkaline-resisting glass grid cloth clamp felt that will flood is pressed into the flat hypotenuse sheet material (21) of the similar corrugated tile of transverse shape in mould, be cut into strip (22) according to wallboard thickness for its axial length, again by flat lean against flat, open face is to uncovered, and composing and laying out forms.
4, combined wall board according to claim 3 is characterized in that: also comprise with one deck or which floor dipping felt and glass cloth groove (19) tenon (20) frame (18) that pressurized after-hardening moulding is stained with the cement slurry pressure again in mould.
5, a kind of manufacture method of the combined wall board with waste spinning fabric fiber wall reinforced concrete side, at first make the fibre-reinforced concrete medial surface of waste spinning fabric, it is layered on the flat board of vibration, repave intermediate layer (15), make the concrete lateral surface that textile fabric strengthens at last, it is covered above the intermediate layer (15), and lateral surface carried out roll extrusion, it is characterized in that: make in the concrete of textile fabric enhancing, the processing step of lateral surface is as follows: make felt (23) and alkaline-resisting glass woven roving (24) compound and squeeze out air in both simultaneously after enter in the impregnating bath (4), and be attached on the cylinder with the speed of 2～3.5 meters of per minutes and in cement paste (25), move ahead, meanwhile, the plug-in type oscillating column pump (7) that is positioned in the stain soaking pit (4) is worked; Squeeze away flooding in felt behind the pond and the alkaline-resisting glass woven roving redundant sizing agent; Repave on the dull and stereotyped mould and squeeze out air between template and felt and the glass cloth; Will with intermediate layer (15) when being combined into wallboard, the glass cloth of its inner panel is below felt, the glass cloth of its outer side panel is on felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021139687A CN1173105C (en) | 2002-02-08 | 2002-02-08 | Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021139687A CN1173105C (en) | 2002-02-08 | 2002-02-08 | Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1364968A CN1364968A (en) | 2002-08-21 |
| CN1173105C true CN1173105C (en) | 2004-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021139687A Expired - Fee Related CN1173105C (en) | 2002-02-08 | 2002-02-08 | Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method |
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| Country | Link |
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| CN (1) | CN1173105C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445738B2 (en) * | 2003-09-18 | 2008-11-04 | United States Gypsum Company | Multi-layer process and apparatus for producing high strength fiber-reinforced structural cementitious panels |
| CN1313685C (en) * | 2005-03-19 | 2007-05-02 | 龚卓夫 | Movable dwellings |
| CN101985849B (en) * | 2010-05-25 | 2012-01-25 | 马义和 | High density glass fiber reinforced cement curved plate and manufacturing method thereof |
| CN104863281A (en) * | 2014-02-22 | 2015-08-26 | 李新亮 | Noise reducing panel and laying grooves thereof |
| EP3031603A1 (en) * | 2014-12-08 | 2016-06-15 | Svoboda Piotr Slebioda | Fire resistant structural panel with a mineral wool core |
| CN112759318A (en) * | 2019-11-05 | 2021-05-07 | 怀化市永固节能墙材有限公司 | Aerated concrete building block |
| CN113858759B (en) * | 2021-09-03 | 2023-10-24 | 众智联新材料科技(山东)有限公司 | Process method for preparing lightweight large boards using saw mud |
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2002
- 2002-02-08 CN CNB021139687A patent/CN1173105C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1364968A (en) | 2002-08-21 |
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