CN103866950A - Cement base material prestress composite floor and manufacturing method thereof - Google Patents
Cement base material prestress composite floor and manufacturing method thereof Download PDFInfo
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- CN103866950A CN103866950A CN201410135517.1A CN201410135517A CN103866950A CN 103866950 A CN103866950 A CN 103866950A CN 201410135517 A CN201410135517 A CN 201410135517A CN 103866950 A CN103866950 A CN 103866950A
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Abstract
The invention provides a cement base material prestress composite floor. The cement base material prestress composite floor is characterized in that a cement base body is included, a decoration layer and an abrasion resistance surface layer are arranged on the cement base body, a moistureproof bottom layer is arranged under the cement base body, a plurality of layers of prestress nets are arranged in the cement base body in parallel, and a sunk coak matched with a hinged buckle is formed around the cement base body; the prestress nets are made of medium alkali or alkali-free glass fiber grid cloth; the surrounding sunk coak of the cement base body is in an inverted-cone double-hook shape; the hinged buckle is provided with an upper pair of double-side wings and a lower pair of double-side wings, and the upper pair of double-side wings and the lower pair of double-side wings are respectively provided with a sawtooth-shaped barb bite mark. The cement base material prestress composite floor can meet the demand for mechanical properties, and has the advantages of being reasonable in structure, convenient to lay, long in service life, environmentally friendly and the like. The process of the manufacturing method of the cement base material prestress composite floor, particularly manufacturing of the cement base body is scientific and reasonable, operation and control are easy, and the manufacturing method of the cement base material prestress composite floor is suitable for industrial production.
Description
Technical field
The present invention relates to architectural decoration material field, is a kind of cement matrix prestressing force composite floor board and preparation method thereof.
Background technology
Current composite floor substrate is all to adopt natural wood materials particle together with organic gel gel material after mix, then it is compressing to pass through high temperature.This composite floor board exists that fire prevention, protection against the tide, water resistance are poor, the shortcoming such as coefficient of thermal conductivity is relatively little, and particularly the harmful substance contents such as formaldehyde and benzene in organic gel is higher, in use harmful in process of production.Just there will not be above problem as floor base material with inorganic silicate cement material, but again because the fragility of material own is large, at the bottom of rupture strength, crooking ability is poor, the mortise on floor becomes mouthful rate lower, even if become mouthful, when mounted also can splitting.The problem that how to solve prior art is the difficult problem of this area always.
Summary of the invention
The object of the invention is, solve this area and want to solve always, but a unsolved difficult problem still provides one can meet mechanical characteristic requirement, rational in infrastructure, mat formation conveniently, long service life, the cement matrix prestressing force composite floor board of environment-friendly type; And provide the preparation method of above-mentioned cement matrix prestressing force composite floor board.
The object of the invention is to be realized by following technical scheme: a kind of cement matrix prestressing force composite floor board, it is characterized in that, it comprises cement matrix, on cement matrix, be provided with decorative layer and wear-resistant coat, below cement matrix, be provided with moistureproof bottom, the some layers of prestressed net that be arranged in parallel in described cement matrix, are provided with and the sunk coak that links buckle and match in the surrounding of described cement matrix.
Described prestressed net is middle alkali or alkali-free glass fibre grid cloth.
The surrounding sunk coak of described cement matrix is reverse taper double hook shape.
Described link buckle is upper and lower two pairs of double side wings, on upper and lower two pairs of double side wings, is equipped with zigzag barb bite mark.
A preparation method for cement matrix prestressing force composite floor board, is characterized in that, it comprises the following steps:
1) preparation of high true protein soil: first, 400 DEG C of roastings of protein shale process high temperature, roasting time is 3.5 ~ 4h, is being that 30% sulfuric acid soaks after 3.5 ~ 4h by concentration, natural drying moulding, the SiO of protein soil
2purity is 88 ~ 90%;
2) active mineral admixture preparation: rice hull ash and protein soil after burning are carried out to mix, and the mass parts of mix is than being 1:0.27, and duration of mixing 0.1h, makes active mineral admixture;
3) preparation of complex cement: adopt 42.5MP
aportland cement and active mineral admixture carry out mix, and the mass parts of mix, than being 1:0.14, adopts ball mill mix, and duration of mixing is 5 ~ 8min, makes complex cement;
4) preparation of water-soluble poly hydroxy acid analog high efficiency water reducing agent: using 450 ~ 600 parts, the water of mass parts as base solvent, in described base solvent, add 80 ~ 110 parts of p-methyl benzenesulfonic acid, 20 ~ 35 parts of ammonium persulfates, 12 ~ 18 parts of potassium peroxydisulfates, 10 ~ 20 parts of positive lauryl mercaptans, 6 ~ 14 parts of 8 ~ 15 parts of ethyl thioglycollic acids and dihydroxy anthraquinones carry out copolymerization, 80 ~ 90 DEG C of reaction temperatures, reaction time 4h, in solution after polymerisation, add by 10 ~ 15 parts, acrylic acid, 25 ~ 30 parts of methacrylic acids, the catalyzer of 6 ~ 10 parts of compositions of formaldehyde, after adding described catalyzer, carry out secondary copolymerization, 90 ~ 100 DEG C of reaction temperatures, reaction time 1.5 ~ 2h, make water-soluble poly hydroxy acid analog high efficiency water reducing agent, water-reducing rate is 33 ~ 40%,
5) preparation of polyacrylate modified polyurethane emulsion stabilizer: carry out copolymerization with 25 ~ 30 parts of 2 ~ 6 parts, 170 ~ 190 parts, mass parts water, 22 ~ 26 parts, acrylic acid, 11 ~ 15 parts of MPEG-550s, methoxyl group anthraquinone and poly glycol monomethyl ethers, 80 ~ 90 DEG C of reaction temperatures, reaction time 1.5 ~ 2h;
6) preparation of cement paste mixing water: cement paste mixing water adopts tap water, in tap water, add respectively water-soluble poly hydroxy acid analog high efficiency water reducing agent and polyacrylate modified polyurethane emulsion stabilizer, additional proportion calculates according to cement quality, the water-soluble poly hydroxy acid analog high efficiency water reducing agent amount of participating in is cement quality 4 ~ 5.5%, the polyacrylate modified polyurethane emulsion amount of participating in is cement quality 0.8 ~ 1%, and mix is made cement paste mixing water after evenly;
7) preparation of cement paste: by mixing water and 42.5MP described in the complex cement described in step 3) and step 6)
aportland cement carries out mix, the mixing water of cement paste and 42.5MP
athe water/binder ratio of Portland cement is 0.35 ~ 0.4,1M
342.5MP
ain Portland cement slurry, water supply volume is 471 ~ 495 parts, then presses 42.5MP
aportland cement mass percent 4.5 ~ 5% adds EA type expansion agent, and limited expansion rate is 4/10
-6~ 4.5/10
-6;
8) making of cement matrix: brushing separation layer on compacting tool set, prevent that cement paste from hardening afterwards and template adhesion, on the mould of having brushed, want the grid cloth of 4 ~ 5 layers of glass fiber of mating formation, point interlamellar spacing is 3mm, applying 400N ~ 500N pulling force with stretching machine respectively in the surrounding of grid cloth is fixed, on the good grid of stretch-draw, build the cement paste described in step 7), the mold side vibrations limit compacting of having built is floating, cement paste after floating carries out the maintenance of constant temperature and humidity, curing time is 28d, form removal while reaching design strength after 28d, cut off the fiberglass gridding cloth of stretch-draw, make cement matrix,
9) cement matrix material prestressing force composite floor board is made: by be provided with decorative layer and wear-resistant coat described in step 8) on cement matrix, below cement matrix, be provided with moistureproof bottom, be provided with and the sunk coak that links buckle and match in the surrounding of described cement matrix, the described decorative layer being provided with on cement matrix is the patterned paper being pasted on above cement matrix; Described wear-resistant coat is on decorative layer surface, adopts high temperature to paste 46 grams of alundum (Al2O3) wearing layers with abrasion resistance; The damp-proof course that cement matrix is pasted is below the thin mould of PVC; It is to cut into setting size by milling machine that the surrounding of described cement matrix is provided with linking the sunk coak that buckle matches, and the tongue-and-groove of barb form is outputed in both sides, the splicing while installation in order to floor; 10) link buckle is made: link buckle adopts vinyon, and by extruding machine, according to designing requirement extrusion molding, link buckle design form is upper and lower two pairs of double side wings, and has zigzag fashion barb bite mark.
Cement matrix prestressing force composite floor board of the present invention is on cement matrix, to be provided with decorative layer and wear-resistant coat, below cement matrix, be provided with on the basis of structure of moistureproof bottom, the some layers of prestressed net that be arranged in parallel in cement matrix, prestressed net is middle alkali or alkali-free glass fibre grid cloth; So be only called prestressed net, middle alkali or the alkali-free glass fibre grid cloth of using in advance external force stretch-draw, after cement matrix intensity reaches design load, disconnect stretch-draw, grid cloth will apply compressive stress to cement matrix, the tensile stress producing under service load effect can be partly or entirely offset in the size of this stress and distribution, thereby make structure in service load, be unlikely to cracking, reduce the width of crack developing, and improve crack resistance and the rigidity of member, effectively utilize high this feature of cement material compressive strength, increased the application life on floor; Owing to being provided with in the surrounding of cement matrix and the sunk coak that links buckle and match, the surrounding sunk coak of cement matrix is reverse taper double hook shape, link buckle is upper and lower two pairs of double side wings, on upper and lower two pairs of double side wings, be equipped with the structure of zigzag barb bite mark, can realize three-dimensional pulling force connects, stressed even, bonding strength is high.Have rational in infrastructurely, mat formation conveniently, long service life, the advantages such as environmental protection; Scientifically preparing rationally of the flow process of its preparation method, particularly cement matrix, easily operates and controls, and is applicable to suitability for industrialized production.
Brief description of the drawings
Fig. 1 is cement matrix prestressing force composite floor structure schematic diagram.
Fig. 2 is cement matrix prestressing force composite floor board syndeton schematic diagram.
Fig. 3 is link cards buckle structure schematic diagram.
In figure: 1 sunk coak, 2 prestressed nets, 3 cement matrixes, 4 decorative layers, 5 wear-resistant coats, 6 moistureproof bottoms, 7 link buckles.
Detailed description of the invention
The invention will be further described to utilize the drawings and specific embodiments below.
With reference to Fig. 1-3, a kind of cement matrix prestressing force composite floor board of the present invention, comprise: cement matrix 3, on cement matrix 3, be provided with decorative layer 4 and wear-resistant coat 5, below cement matrix 3, be provided with moistureproof bottom 6, the some layers of prestressed net 2 that be arranged in parallel in cement matrix 3, are provided with and the sunk coak 1 that links buckle 7 and match in the surrounding of cement matrix 3.Prestressed net 2 is middle alkali or alkali-free glass fibre grid cloth.The surrounding sunk coak 1 of cement matrix 3 is reverse taper double hook shape.Link buckle 7 is upper and lower two pairs of double side wings, on upper and lower two pairs of double side wings, is equipped with zigzag barb bite mark.Link buckle 7 adopts plastic warp mould molding.The patterned paper of the middle alkali of prestressed net 2 or alkali-free glass fibre grid cloth, decorative layer 4, the alundum (Al2O3) of wear-resistant coat 5; The thin mould of PVC of moistureproof bottom is commercially available prod.Some layers of prestressed net 2 in cement matrix 3 are in the time that cement matrix 3 is produced, in advance at middle alkali or the alkali-free glass fibre grid cloth of mould higher slice stretch-draw 3 × 3mm or 2 × 2mm, the surrounding of middle alkali or alkali-free glass fibre grid cloth is executed respectively 200N ~ 500N pulling force and is fixed, be divided into 4 ~ 5 layers, each layer of grid cloth spacing distance is 2 ~ 3mm, inject the modified cement mortar mixing in advance, cement matrix 3 thickness of making are 10 ~ 12mm.Surrounding at cement matrix 3 is outputed respectively sunk coak 1, and sunk coak 1 is reverse taper double hook shape, and inside dimensions is greater than side dimension, as shown in Figure 1 the link when facilitating Floor Covering.Coordinating the assembled link buckle 7 of cement matrix prestressing force composite floor board is upper and lower two pairs of double side wings, on upper and lower two pairs of double side wings, be equipped with zigzag barb bite mark, fluting two-way plastic rises by plug for upper and lower two pairs of double side wings, and there is a zigzag fashion barb bite mark, can realize three-dimensional pulling force connects, make stressed more evenly, bonding strength is higher.
The preparation method of a kind of cement matrix prestressing force composite floor board of the present invention, comprises the following steps:
1) preparation of high true protein soil: first, 400 DEG C of roastings of protein shale process high temperature, roasting time is 3.5 ~ 4h, is being that 30% sulfuric acid soaks after 3.5 ~ 4h by concentration, natural drying moulding, the SiO of protein soil
2purity is 88 ~ 90%;
2) active mineral admixture preparation: rice hull ash and protein soil after burning are carried out to mix, and the mass parts of mix is than being 1:0.27, and duration of mixing 0.1h, makes active mineral admixture;
3) preparation of complex cement: adopt 42.5MP
aportland cement and active mineral admixture carry out mix, and the mass parts of mix, than being 1:0.14, adopts ball mill mix, and duration of mixing is 5 ~ 8min, makes complex cement;
4) preparation of water-soluble poly hydroxy acid analog high efficiency water reducing agent: using 450 ~ 600 parts, the water of mass parts as base solvent, in described base solvent, add 80 ~ 110 parts of p-methyl benzenesulfonic acid, 20 ~ 35 parts of ammonium persulfates, 12 ~ 18 parts of potassium peroxydisulfates, 10 ~ 20 parts of positive lauryl mercaptans, 6 ~ 14 parts of 8 ~ 15 parts of ethyl thioglycollic acids and dihydroxy anthraquinones carry out copolymerization, 80 ~ 90 DEG C of reaction temperatures, reaction time 4h, in solution after polymerisation, add by 10 ~ 15 parts, acrylic acid, 25 ~ 30 parts of methacrylic acids, the catalyzer of 6 ~ 10 parts of compositions of formaldehyde, after adding described catalyzer, carry out secondary copolymerization, 90 ~ 100 DEG C of reaction temperatures, reaction time 1.5 ~ 2h, make water-soluble poly hydroxy acid analog high efficiency water reducing agent, water-reducing rate is 33 ~ 40%,
5) preparation of polyacrylate modified polyurethane emulsion stabilizer: carry out copolymerization with 25 ~ 30 parts of 2 ~ 6 parts, 170 ~ 190 parts, mass parts water, 22 ~ 26 parts, acrylic acid, 11 ~ 15 parts of MPEG-550s, methoxyl group anthraquinone and poly glycol monomethyl ethers, 80 ~ 90 DEG C of reaction temperatures, reaction time 1.5 ~ 2h;
6) preparation of cement paste mixing water: cement paste mixing water adopts tap water, in tap water, add respectively water-soluble poly hydroxy acid analog high efficiency water reducing agent and polyacrylate modified polyurethane emulsion stabilizer, additional proportion calculates according to cement quality, the water-soluble poly hydroxy acid analog high efficiency water reducing agent amount of participating in is cement quality 4 ~ 5.5%, the polyacrylate modified polyurethane emulsion amount of participating in is cement quality 0.8 ~ 1%, and mix is made cement paste mixing water after evenly;
7) preparation of cement paste: by mixing water and 42.5MP described in the complex cement described in step 3) and step 6)
aportland cement carries out mix, the mixing water of cement paste and 42.5MP
athe ratio of Portland cement is 0.35 ~ 0.4,1M
342.5MP
ain Portland cement slurry, water supply volume is 471 ~ 495 parts, then presses 42.5MP
aportland cement mass percent 4.5 ~ 5% adds EA type expansion agent, and limited expansion rate is 4/10
-6~ 4.5/10
-6;
8) making of cement matrix: brushing separation layer on compacting tool set, prevent that cement paste from hardening afterwards and template adhesion, on the mould of having brushed, want the grid cloth of 4 ~ 5 layers of glass fiber of mating formation, point interlamellar spacing is 3mm, applying 400N ~ 500N pulling force with stretching machine respectively in the surrounding of grid cloth is fixed, on the good grid of stretch-draw, build the cement paste described in step 7), the mold side vibrations limit compacting of having built is floating, cement paste after floating carries out the maintenance of constant temperature and humidity, curing time is 28d, form removal while reaching design strength after 28d, cut off the fiberglass gridding cloth of stretch-draw, make cement matrix,
9) cement matrix material prestressing force composite floor board is made: by be provided with decorative layer and wear-resistant coat described in step 8) on cement matrix, below cement matrix, be provided with moistureproof bottom, be provided with and the sunk coak that links buckle and match in the surrounding of described cement matrix, the described decorative layer being provided with on cement matrix is the patterned paper being pasted on above cement matrix; Described wear-resistant coat is on decorative layer surface, adopts high temperature to paste 46 grams of alundum (Al2O3) wearing layers with abrasion resistance; The damp-proof course that cement matrix is pasted is below the thin mould of PVC; It is to cut into setting size by milling machine that the surrounding of described cement matrix is provided with linking the sunk coak that buckle matches, and the tongue-and-groove of barb form is outputed in both sides, the splicing while installation in order to floor;
10) link buckle is made: link buckle adopts vinyon, and by extruding machine, according to designing requirement extrusion molding, link buckle design form is upper and lower two pairs of double side wings, and has zigzag fashion barb bite mark.
Claims (5)
1. a cement matrix prestressing force composite floor board, it comprises cement matrix, on cement matrix, be provided with decorative layer and wear-resistant coat, below cement matrix, be provided with moistureproof bottom, it is characterized in that, the some layers of prestressed net that be arranged in parallel in described cement matrix, are provided with and the sunk coak that links buckle and match in the surrounding of described cement matrix.
2. cement matrix prestressing force composite floor board according to claim 1, is characterized in that, described prestressed net is middle alkali or alkali-free glass fibre grid cloth.
3. cement matrix prestressing force composite floor board according to claim 1, is characterized in that, the surrounding sunk coak of described cement matrix is reverse taper double hook shape.
4. cement matrix prestressing force composite floor board according to claim 1, is characterized in that, described link buckle is upper and lower two pairs of double side wings, on upper and lower two pairs of double side wings, is equipped with zigzag barb bite mark.
5. a preparation method for cement matrix prestressing force composite floor board, is characterized in that, it comprises the following steps:
1) preparation of high true protein soil: first, 400 DEG C of roastings of protein shale process high temperature, roasting time is 3.5 ~ 4h, is being that 30% sulfuric acid soaks after 3.5 ~ 4h by concentration, natural drying moulding, the SiO of protein soil
2purity is 88 ~ 90%;
2) active mineral admixture preparation: rice hull ash and protein soil after burning are carried out to mix, and the mass parts of mix is than being 1:0.27, and duration of mixing 0.1h, makes active mineral admixture;
3) preparation of complex cement: adopt 42.5MP
aportland cement and active mineral admixture carry out mix, and the mass parts of mix, than being 1:0.14, adopts ball mill mix, and duration of mixing is 5 ~ 8min, makes complex cement;
4) preparation of water-soluble poly hydroxy acid analog high efficiency water reducing agent: using 450 ~ 600 parts, the water of mass parts as base solvent, in described base solvent, add 80 ~ 110 parts of p-methyl benzenesulfonic acid, 20 ~ 35 parts of ammonium persulfates, 12 ~ 18 parts of potassium peroxydisulfates, 10 ~ 20 parts of positive lauryl mercaptans, 6 ~ 14 parts of 8 ~ 15 parts of ethyl thioglycollic acids and dihydroxy anthraquinones carry out copolymerization, 80 ~ 90 DEG C of reaction temperatures, reaction time 4h, in solution after polymerisation, add by 10 ~ 15 parts, acrylic acid, 25 ~ 30 parts of methacrylic acids, the catalyzer of 6 ~ 10 parts of compositions of formaldehyde, after adding described catalyzer, carry out secondary copolymerization, 90 ~ 100 DEG C of reaction temperatures, reaction time 1.5 ~ 2h, make water-soluble poly hydroxy acid analog high efficiency water reducing agent, water-reducing rate is 33 ~ 40%,
5) preparation of polyacrylate modified polyurethane emulsion stabilizer: carry out copolymerization with 25 ~ 30 parts of 2 ~ 6 parts, 170 ~ 190 parts, mass parts water, 22 ~ 26 parts, acrylic acid, 11 ~ 15 parts of MPEG-550s, methoxyl group anthraquinone and poly glycol monomethyl ethers, 80 ~ 90 DEG C of reaction temperatures, reaction time 1.5 ~ 2h;
6) preparation of cement paste mixing water: cement paste mixing water adopts tap water, in tap water, add respectively water-soluble poly hydroxy acid analog high efficiency water reducing agent and polyacrylate modified polyurethane emulsion stabilizer, additional proportion calculates according to cement quality, the water-soluble poly hydroxy acid analog high efficiency water reducing agent amount of participating in is cement quality 4 ~ 5.5%, the polyacrylate modified polyurethane emulsion amount of participating in is cement quality 0.8 ~ 1%, and mix is made cement paste mixing water after evenly;
7) preparation of cement paste: by mixing water and 42.5MP described in the complex cement described in step 3) and step 6)
aportland cement carries out mix, the mixing water of cement paste and 42.5MP
athe water/binder ratio of Portland cement is 0.35 ~ 0.4,1M
342.5MP
ain Portland cement slurry, water supply volume is 471 ~ 495 parts, then presses 42.5MP
aportland cement mass percent 4.5 ~ 5% adds EA type expansion agent, and limited expansion rate is 4/10
-6~ 4.5/10
-6;
8) preparation of cement matrix: brushing separation layer on compacting tool set, prevent that cement paste from hardening afterwards and template adhesion, on the mould of having brushed, want the grid cloth of 4 ~ 5 layers of glass fiber of mating formation, point interlamellar spacing is 3mm, applying 400N ~ 500N pulling force with stretching machine respectively in the surrounding of grid cloth is fixed, on the good grid of stretch-draw, build the cement paste described in step 7), the mold side vibrations limit compacting of having built is floating, cement paste after floating carries out the maintenance of constant temperature and humidity, curing time is 28d, form removal while reaching design strength after 28d, cut off the fiberglass gridding cloth of stretch-draw, make cement matrix,
9) cement matrix material prestressing force composite floor board is made: by be provided with decorative layer and wear-resistant coat described in step 8) on cement matrix, below cement matrix, be provided with moistureproof bottom, be provided with and the sunk coak that links buckle and match in the surrounding of described cement matrix, the described decorative layer being provided with on cement matrix is the patterned paper being pasted on above cement matrix; Described wear-resistant coat is on decorative layer surface, adopts high temperature to paste 46 grams of alundum (Al2O3) wearing layers with abrasion resistance; The damp-proof course that cement matrix is pasted is below the thin mould of PVC; It is to cut into setting size by milling machine that the surrounding of described cement matrix is provided with linking the sunk coak that buckle matches, and the tongue-and-groove of barb form is outputed in both sides, the splicing while installation in order to floor; 10) link buckle is made: link buckle adopts vinyon, and by extruding machine, according to designing requirement extrusion molding, link buckle design form is upper and lower two pairs of double side wings, and has zigzag fashion barb bite mark.
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| CN201410135517.1A CN103866950B (en) | 2014-04-05 | 2014-04-05 | Cement matrix prestressing force composite floor board and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826391A (en) * | 2019-04-04 | 2019-05-31 | 湖南工业大学 | A kind of bayonet type connector and plate |
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| KR100921531B1 (en) * | 2009-03-03 | 2009-10-12 | 주식회사 젠트로 | Method for constructing outdoor-type inorganic nonflammable floor material and the floor material therefrom |
| CN101936052A (en) * | 2009-06-29 | 2011-01-05 | 上海盈创装饰设计工程有限公司 | High-performance glass fiber reinforced cement board and pipelining manufacturing method thereof |
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| CN102975444A (en) * | 2012-03-08 | 2013-03-20 | 张耀中 | Multilayer structure floor board for cargo container and multilayer structure floor board body manufacturing method |
| CN203238895U (en) * | 2013-05-25 | 2013-10-16 | 东莞市艺盛环保建材有限公司 | Stone plastic floorboard free of plastic cement |
| CN203808442U (en) * | 2014-04-05 | 2014-09-03 | 北华大学 | Prestressed composite floor made of cement base material |
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2014
- 2014-04-05 CN CN201410135517.1A patent/CN103866950B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921531B1 (en) * | 2009-03-03 | 2009-10-12 | 주식회사 젠트로 | Method for constructing outdoor-type inorganic nonflammable floor material and the floor material therefrom |
| CN101936052A (en) * | 2009-06-29 | 2011-01-05 | 上海盈创装饰设计工程有限公司 | High-performance glass fiber reinforced cement board and pipelining manufacturing method thereof |
| CN102493617A (en) * | 2011-11-25 | 2012-06-13 | 梅志江 | Production method of fiber cement-stone compound plate and product thereof |
| CN102975444A (en) * | 2012-03-08 | 2013-03-20 | 张耀中 | Multilayer structure floor board for cargo container and multilayer structure floor board body manufacturing method |
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| CN203808442U (en) * | 2014-04-05 | 2014-09-03 | 北华大学 | Prestressed composite floor made of cement base material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109826391A (en) * | 2019-04-04 | 2019-05-31 | 湖南工业大学 | A kind of bayonet type connector and plate |
| CN109826391B (en) * | 2019-04-04 | 2024-01-26 | 湖南工业大学 | Lock catch type connecting piece and plate |
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| CN103866950B (en) | 2016-04-06 |
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