CN111268999A - Special PLASTIC LAMINATED in tunnel top - Google Patents
Special PLASTIC LAMINATED in tunnel top Download PDFInfo
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- CN111268999A CN111268999A CN202010157645.1A CN202010157645A CN111268999A CN 111268999 A CN111268999 A CN 111268999A CN 202010157645 A CN202010157645 A CN 202010157645A CN 111268999 A CN111268999 A CN 111268999A
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- 239000004033 plastic Substances 0.000 title abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 37
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000012774 insulation material Substances 0.000 claims abstract description 17
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 17
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 16
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 16
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 15
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 33
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 18
- 239000011324 bead Substances 0.000 claims description 18
- 229910021487 silica fume Inorganic materials 0.000 claims description 18
- NTGGOTYRTOXKMQ-UHFFFAOYSA-K aluminum;potassium;phosphate Chemical compound [Al+3].[K+].[O-]P([O-])([O-])=O NTGGOTYRTOXKMQ-UHFFFAOYSA-K 0.000 claims description 13
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 13
- 239000004327 boric acid Substances 0.000 claims description 13
- 230000002265 prevention Effects 0.000 claims description 13
- 239000001488 sodium phosphate Substances 0.000 claims description 13
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 13
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 13
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004566 building material Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000000378 calcium silicate Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 3
- 230000009970 fire resistant effect Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical group O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 3
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention belongs to the technical field of fireproof materials, and particularly relates to a special fireproof plate for a tunnel top. The invention provides a special fireproof plate for a tunnel roof, which is prepared from the following raw materials, by weight, 24.5-30.5 parts of magnesium oxide, 15-19 parts of magnesium sulfate, 24.2-30.2 parts of heat insulation materials, 0.16-0.24 part of non-woven fabrics, 1.7-2.1 parts of glass fiber cloth, 0.45-0.55 part of glass fibers, 0.08-0.12 part of trace substances and 38-42 parts of water. The fireproof plate has excellent fireproof and heat-insulating performance, can resist 1500 ℃ and has the density of 1.05t/m3About, with the PLASTIC LAMINATED thickness is 30mm, the PLASTIC LAMINATED receives 1350 degrees of temperature after the fire, and the crackle can not appear in the panel, and separation heat transfer, guarantees that the panel back temperature is in 380 degrees in 2h, has thoroughly protected the building major structure at the panel back, is present tunnel major structure can reachPreferred fire resistant lining materials are those under the RWS fire standard.
Description
Technical Field
The invention belongs to the technical field of fireproof materials, and particularly relates to a special fireproof plate for a tunnel top.
Background
Tunnel fires not only pose a serious threat to human life and property safety, but also can cause great damage to traffic practices and human production activities. The fire protection of tunnel structures is mainly divided into four major categories, namely, providing extra concrete thickness without counting into a structural profile, installing a spray fire extinguishing system, spraying fire-proof paint on a tunnel lining body, pasting tunnel fire-proof boards on the tunnel lining body, and the like. If a fire disaster really occurs in one tunnel, the automatic water spraying fire extinguishing system and the fireproof coating have not great application, and the fireproof coating is easy to age and fall off; according to the reports of the world road association (PIARC), most countries consider that most tunnel fires occur in fuel tanks and compartments, and that automatic sprinkler systems are not effective.
The tunnel fireproof plate is a fireproof plate which is fixed on the inner walls of a highway tunnel, a railway tunnel, a subway and an urban traffic tunnel and can improve the fire endurance of a tunnel structure. Under the condition of fire, the tunnel plate has the effects of delaying the temperature rise of a main reinforced concrete structure in the tunnel, preventing the collapse of the tunnel due to the fact that the burst and the supporting capacity loss caused by the damage of the lining reinforcing steel bars are avoided, and the traditional tunnel plate can be burnt only under the flame at the temperature of 1100 ℃ to ensure that the integrity is kept for 2 hours. However, few reports on related researches on the fireproof plate of the tunnel are reported at present.
Disclosure of Invention
In order to solve the technical problems, the first aspect of the invention provides a special fireproof plate for a tunnel roof, which comprises the following raw materials, by weight, 24.5-30.5 parts of magnesium oxide, 15-19 parts of magnesium sulfate, 24.2-30.2 parts of heat insulation materials, 0.16-0.24 part of non-woven fabrics, 1.7-2.1 parts of glass fiber cloth, 0.45-0.55 part of glass fibers, 0.08-0.12 part of trace substances and 38-42 parts of water.
As a preferable technical scheme, the preparation raw materials comprise, by weight, 27.5 parts of magnesium oxide, 17 parts of magnesium sulfate, 27.2 parts of heat insulation materials, 0.2 part of non-woven fabrics, 1.9 parts of glass fiber cloth, 0.5 part of glass fibers, 0.1 part of trace substances and 40 parts of water.
As a preferable technical scheme, the heat insulation material is at least one selected from floating beads, aluminum silicate powder, silica fume, calcium silicate powder, quartz powder, mica powder, gypsum powder and perlite powder.
As a preferable technical scheme, the weight ratio of the floating beads, the aluminum silicate powder and the silica fume is (40-42): (12-13): 1.
as a preferable technical scheme, the trace substance comprises at least one of trisodium phosphate, boric acid and potassium aluminum phosphate.
As a preferable technical scheme, the weight ratio of the trisodium phosphate, the boric acid and the potassium aluminum phosphate is (5-7): 1: (2-4).
As a preferred technical solution, the weight ratio of the trisodium phosphate, the boric acid and the potassium aluminum phosphate is 6: 1: 3.
the second aspect of the invention provides a preparation method of the special fireproof plate for the tunnel roof, which comprises the following steps: (1) preparing materials; (2) laying grid cloth building materials; (3) rolling; (4) stacking the thousands of shelves; (5) entering an initial setting room to heat and perform initial setting; (6) demolding; (7) secondary maintenance; (8) drying, cutting and packaging.
As a preferable technical scheme, in the step (1), a trace amount of substances are added into water, stirred and dissolved, and then magnesium oxide, magnesium sulfate, a heat insulating material and glass fiber are added and stirred uniformly.
As a preferable technical scheme, in the step (3), non-woven fabrics and glass fiber fabrics are laid in the rolling process.
Has the advantages that: this application magnesium oxide is natural fire-proof material, adds magnesium sulfate as gelatinizing agent, surpasss the intensity of ordinary cement concrete, it is the cavity object to float the pearl, has fine heat-proof quality, adds the thermal insulation material of certain ratio again, and these several kinds of materials are synergistic each other for the PLASTIC LAMINATED has very outstanding fire prevention thermal insulation performance, and temperature resistant 1500 degrees, panel density are at 1.05t/m3On the left and right sides, with the fire prevention board thickness of 30mm, 1350 degrees after the fire prevention board receives the fire, the panel can not appear the crackle, and the separation heat transfer, guarantee that the panel back temperature is in 380 degrees in 2h, thoroughly protected the building major structure at the panel back, be the first-selected fire prevention inside lining material that tunnel major structure can reach under the RWS fire-resistant standard at present.
Drawings
FIG. 1 is a diagram of a fire-proof board of the present invention.
Detailed Description
In order to solve the problems, the invention provides a special fireproof plate for a tunnel roof, which is prepared from the following raw materials, by weight, 24.5-30.5 parts of magnesium oxide, 15-19 parts of magnesium sulfate, 24.2-30.2 parts of heat insulation materials, 0.16-0.24 part of non-woven fabrics, 1.7-2.1 parts of glass fiber cloth, 0.45-0.55 part of glass fibers, 0.08-0.12 part of trace substances and 38-42 parts of water.
In a preferred embodiment, the fireproof plate for the tunnel roof is prepared from 27.5 parts by weight of magnesium oxide, 17 parts by weight of magnesium sulfate, 27.2 parts by weight of heat insulating material, 0.2 part by weight of non-woven fabric, 1.9 parts by weight of glass fiber cloth, 0.5 part by weight of glass fiber, 0.1 part by weight of trace substance and 40 parts by weight of water.
In the present application, the magnesium sulfate is magnesium sulfate heptahydrate.
As a preferred embodiment, the heat insulating material is selected from at least one of floating beads, aluminum silicate powder, silica fume, calcium silicate powder, quartz powder, mica powder, gypsum powder, perlite powder; preferably, the heat insulation materials are floating beads, aluminum silicate powder and silica fume; more preferably, the weight ratio of the floating beads, the aluminum silicate powder and the silica fume is (40-42): (12-13): 1; still further preferably, the weight ratio of the floating beads, the aluminum silicate powder and the silica fume is 41: 12.4: 1.
this application the non-woven fabrics does not have special restriction, in this application, the non-woven fabrics is polyester non-woven fabrics.
The glass fiber cloth is made by drawing glass into superfine glass filaments which have good flexibility, and then the glass filaments are spun into yarns and woven into the glass fiber cloth by a loom. The silica content of the glass fiber is generally below 60%. The glass fiber has the advantages of chemical corrosion resistance, high strength and the like.
In a preferred embodiment, the glass fibers of the present application are chopped glass fibers. The chopped glass fiber is formed by melting quartz sand at high temperature, adopting a special impregnating compound to draw protofilaments, and carrying out on-line chopping by a wet method or chopping a product glass fiber. The chopped glass fiber specification is a specification commonly used in the art.
As a preferred embodiment, the trace substance comprises at least one of trisodium phosphate, boric acid, and potassium aluminum phosphate. Preferably, the weight ratio of the trisodium phosphate, the boric acid and the potassium aluminum phosphate is (5-7): 1: (2-4). More preferably, the weight ratio of the trisodium phosphate, the boric acid and the potassium aluminum phosphate is 6: 1: 3.
a second aspect of the present application provides a method of making the fire retardant panel, comprising the steps of: (1) preparing materials; (2) laying grid cloth building materials; (3) rolling; (4) stacking the thousands of shelves; (5) entering an initial setting room to heat and perform initial setting; (6) demolding; (7) secondary maintenance; (8) drying, cutting and packaging.
In the step (1), adding trace substances into water, stirring and dissolving, adding magnesium oxide, magnesium sulfate, a heat insulation material and glass fibers, and uniformly stirring;
in the step (3), non-woven fabrics and glass fiber cloth are laid in the rolling process.
In the step (5), the temperature is 30-40 ℃ and the time is 15-17 hours;
in the step (7), the curing temperature is 25-30 ℃ and the curing time is 9-12 days.
In the fire-proof plate finished product obtained by the method, the content of crystal water is 16-18 wt%, and the content of free water is 7-9%; the water of crystallization of certain content makes the fire prevention board have water to separate out when taking place the conflagration, and the gasification of heat absorption has effectively reduced the release calorific value.
The thickness of the fireproof plate is 30 mm.
(1) This application magnesium oxide is natural fire-proof material, adds magnesium sulfate as gelatinizing agent, surpasss the intensity of ordinary cement concrete, it is the cavity object to float the pearl, has fine heat-proof quality, adds the thermal insulation material of certain ratio again, and these several kinds of materials are synergistic each other for the PLASTIC LAMINATED has very outstanding fire prevention thermal insulation performance, and temperature resistant 1500 degrees, panel density are at 1.05t/m3On the left and right sides, with the fire prevention board thickness of 30mm, 1350 degrees after the fire prevention board receives the fire, the panel can not appear the crackle, and the separation heat transfer, guarantee that the panel back temperature is in 380 degrees in 2h, thoroughly protected the building major structure at the panel back, be the first-selected fire prevention inside lining material that tunnel major structure can reach under the RWS fire-resistant standard at present.
(2) The fire-proof plate is convenient to drill, so that the main body structure can be conveniently drilled by using the bolts, the common marble is easy to cut, and the construction is very quick.
(3) The surface of the fire retardant panel and various surface coatings are easily adhered, so that the fire retardant panel is conveniently sprayed and rolled with the fire retardant coating after being fixed to the main structure.
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
Example 1
The fireproof plate special for the tunnel roof comprises, by weight, 27.5 parts of magnesium oxide, 17 parts of magnesium sulfate heptahydrate, 27.2 parts of heat insulation materials, 0.2 part of non-woven fabrics, 1.9 parts of glass fiber cloth, 0.5 part of chopped glass fibers, 0.1 part of trace substances and 40 parts of water.
The heat insulation material comprises floating beads, aluminum silicate powder and silica fume, wherein the weight ratio of the floating beads to the aluminum silicate powder to the silica fume is 41: 12.4: 1.
the trace substance comprises trisodium phosphate, boric acid and potassium aluminum phosphate, wherein the weight ratio of the trisodium phosphate to the boric acid to the potassium aluminum phosphate is 6: 1: 3.
the preparation method of the fireproof plate comprises the following steps: (1) preparing materials: adding trace substances into water, stirring for dissolving, adding magnesium oxide, magnesium sulfate, heat insulating material and glass fiber, and stirring uniformly; (2) laying grid cloth building materials; (3) rolling: paving non-woven fabrics and glass fiber cloth in the rolling process; (4) stacking the thousands of shelves; (5) entering an initial setting room to heat and initially set, wherein the temperature is 35 ℃ and the time is 16 hours; (6) demolding; (7) secondary curing, wherein the curing temperature is 25 ℃, and the curing time is 10 days; (8) drying, cutting and packaging. The thickness of the fireproof plate is 30 mm.
The fireproof plate has no falling and cracks under the severe environment of 1350 ℃ on fire for 2h, the fireproof plate is kept intact, and the temperature of the back surface does not exceed 380 ℃.
Example 2
The fireproof plate special for the tunnel roof comprises, by weight, 24.5 parts of magnesium oxide, 15 parts of magnesium sulfate heptahydrate, 24.2 parts of heat insulation materials, 0.16 part of non-woven fabrics, 1.7 parts of glass fiber cloth, 0.45 part of chopped glass fibers, 0.08 part of trace substances and 38 parts of water.
The heat insulation material comprises floating beads, aluminum silicate powder and silica fume, wherein the weight ratio of the floating beads to the aluminum silicate powder to the silica fume is 41: 12.4: 1.
the trace substance comprises trisodium phosphate, boric acid and potassium aluminum phosphate, wherein the weight ratio of the trisodium phosphate to the boric acid to the potassium aluminum phosphate is 6: 1: 3.
the preparation method of the fireproof plate comprises the following steps: (1) preparing materials: adding trace substances into water, stirring for dissolving, adding magnesium oxide, magnesium sulfate, heat insulating material and glass fiber, and stirring uniformly; (2) laying grid cloth building materials; (3) rolling: paving non-woven fabrics and glass fiber cloth in the rolling process; (4) stacking the thousands of shelves; (5) entering an initial setting room to heat and initially set, wherein the temperature is 40 ℃, and the time is 16 hours; (6) demolding; (7) secondary curing, wherein the curing temperature is 30 ℃, and the curing time is 10 days; (8) drying, cutting and packaging.
The thickness of the fireproof plate is 30 mm.
The fireproof plate has no falling and cracks under the severe environment of 1350 ℃ on fire for 2h, the fireproof plate is kept intact, and the temperature of the back surface does not exceed 380 ℃.
Comparative example 1
The specific implementation mode of the special fireproof plate for the tunnel roof is the same as that of the embodiment 1, and the difference is that the heat insulation material is floating beads and silica fume, and the weight ratio of the floating beads to the silica fume is 41: 1.
and (3) testing results: the fireproof plate has cracks under the severe environment of 1350 ℃ fire for 2.0 h.
Comparative example 2
The specific implementation mode of the special fireproof plate for the tunnel roof is the same as that of the embodiment 1, and the difference is that the heat insulation materials are floating beads, aluminum silicate powder and silica fume, and the weight ratio of the floating beads to the aluminum silicate powder to the silica fume is 41: 6: 1.
and (3) testing results: the fireproof plate has cracks under the severe environment of 1350 ℃ fire for 2.0 h.
Comparative example 3
The specific implementation mode of the special fireproof plate for the tunnel roof is the same as that of the embodiment 1, and the difference is that the heat insulation materials are floating beads, aluminum silicate powder and silica fume, and the weight ratio of the floating beads to the aluminum silicate powder to the silica fume is 41: 30: 1.
and (3) testing results: the fire-proof plate has loose strength.
Comparative example 4
The specific implementation mode of the special fireproof plate for the tunnel roof is the same as that in example 1, and the difference is that the aluminum silicate powder is replaced by sepiolite powder.
And (3) testing results: the fireproof plate has cracks under the severe environment of 1350 ℃ fire for 2.0 h.
It can be seen from the above examples and comparative examples that, in the synergistic interaction of the preparation raw materials, a fire protection plate with good fire resistance is obtained, it being assumed that aluminium silicate can produce gelling properties with the hydroxide produced by hydration.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content disclosed above into an equivalent embodiment with equivalent changes, but all those simple modifications, equivalent changes and modifications made on the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (10)
1. The special fireproof plate for the tunnel roof is characterized by comprising, by weight, 24.5-30.5 parts of magnesium oxide, 15-19 parts of magnesium sulfate, 24.2-30.2 parts of heat insulation materials, 0.16-0.24 part of non-woven fabrics, 1.7-2.1 parts of glass fiber cloth, 0.45-0.55 part of glass fibers, 0.08-0.12 part of trace substances and 38-42 parts of water.
2. The fire-proof plate special for the tunnel roof as claimed in claim 1, wherein the preparation raw materials comprise, by weight, 27.5 parts of magnesium oxide, 17 parts of magnesium sulfate, 27.2 parts of heat-insulating material, 0.2 part of non-woven fabric, 1.9 parts of glass fiber cloth, 0.5 part of glass fiber, 0.1 part of trace substance and 40 parts of water.
3. The fire protection plate for a tunnel roof according to claim 1 or 2, wherein the heat insulating material is at least one selected from the group consisting of floating beads, aluminum silicate powder, silica fume, calcium silicate powder, quartz powder, mica powder, gypsum powder, and perlite powder.
4. The fire prevention plate special for a tunnel roof according to claim 3, wherein the weight ratio of the floating beads, the aluminum silicate powder and the silica fume is (40-42): (12-13): 1.
5. the fire prevention plate for a tunnel roof according to claim 1 or 2, wherein the trace substance comprises at least one of trisodium phosphate, boric acid, and potassium aluminum phosphate.
6. The fire prevention plate special for a tunnel roof of claim 5, wherein the weight ratio of the trisodium phosphate, the boric acid and the potassium aluminum phosphate is (5-7): 1: (2-4).
7. The fire prevention plate special for a tunnel roof according to claim 5 or 6, wherein the weight ratio of the trisodium phosphate, the boric acid and the potassium aluminum phosphate is 6: 1: 3.
8. a method for preparing the fire-proof plate special for the tunnel roof according to any one of claims 1 to 7, comprising the steps of: (1) preparing materials; (2) laying grid cloth building materials; (3) rolling; (4) stacking the thousands of shelves; (5) entering an initial setting room to heat and perform initial setting; (6) demolding; (7) secondary maintenance; (8) drying, cutting and packaging.
9. The method for manufacturing the fire-proof plate special for the tunnel roof as claimed in claim 8, wherein in the step (1), the trace substances are added into water, and after being stirred and dissolved, the magnesium oxide, the magnesium sulfate, the heat-insulating material and the glass fiber are added and stirred uniformly.
10. The method for preparing the fire-proof plate special for the tunnel roof as claimed in claim 9, wherein in the step (3), the non-woven fabric and the glass fiber cloth are laid in the rolling process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157645.1A CN111268999A (en) | 2020-03-09 | 2020-03-09 | Special PLASTIC LAMINATED in tunnel top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157645.1A CN111268999A (en) | 2020-03-09 | 2020-03-09 | Special PLASTIC LAMINATED in tunnel top |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286352A (en) * | 2021-09-09 | 2022-11-04 | 上海香飘防火板制造有限公司 | Magnesium oxysulfate fireproof plate for tunnel and preparation method thereof |
| CN116375497A (en) * | 2023-03-15 | 2023-07-04 | 信息产业电子第十一设计研究院科技工程股份有限公司 | Rock magnesium floating bead plate and preparation method thereof |
| CN116496104A (en) * | 2023-05-18 | 2023-07-28 | 江阴市威腾铝箔合成材料有限公司 | Magnesium material plate and preparation method thereof |
-
2020
- 2020-03-09 CN CN202010157645.1A patent/CN111268999A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286352A (en) * | 2021-09-09 | 2022-11-04 | 上海香飘防火板制造有限公司 | Magnesium oxysulfate fireproof plate for tunnel and preparation method thereof |
| CN115286352B (en) * | 2021-09-09 | 2023-11-24 | 上海香飘防火板制造有限公司 | Magnesium oxysulfate fireproof plate for tunnel and preparation method thereof |
| CN116375497A (en) * | 2023-03-15 | 2023-07-04 | 信息产业电子第十一设计研究院科技工程股份有限公司 | Rock magnesium floating bead plate and preparation method thereof |
| CN116496104A (en) * | 2023-05-18 | 2023-07-28 | 江阴市威腾铝箔合成材料有限公司 | Magnesium material plate and preparation method thereof |
| CN116496104B (en) * | 2023-05-18 | 2024-03-22 | 江阴市威腾铝箔合成材料有限公司 | Magnesium material plate and preparation method thereof |
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