CN101200380A - Tunnel lightweight inorganic fireproof composite material - Google Patents
Tunnel lightweight inorganic fireproof composite material Download PDFInfo
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- CN101200380A CN101200380A CNA2007100507459A CN200710050745A CN101200380A CN 101200380 A CN101200380 A CN 101200380A CN A2007100507459 A CNA2007100507459 A CN A2007100507459A CN 200710050745 A CN200710050745 A CN 200710050745A CN 101200380 A CN101200380 A CN 101200380A
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Abstract
The invention provides a light inorganic fireproofing composite material for tunnel, which is compounded by three layers of materials from inside to outside; the first layer is spray inorganic fireproofing material, the components of which comprise inorganic fireproofing fiber, expanded vermiculite powder, expanded graphite powder and ordinary Portland cement; the second layer is surface fireproofing material, the components comprises ordinary Portland cement, mica powder, gypsum and talcum powder; the third layer is fireproofing decorative material, which is a fire-retardant single-side composite aluminum foil. The composite material has the advantages that: the fire endurance is high; the thermal conductivity in hydrocarbon fire scene is extremely low; the fireproofing result is excellent; the self quality loss in fire is less without melting and dropping; the weight is light; the weathering is good; the sound-absorbing is good and the high-frequency drying reduction is obvious; the cost is low; the construction strength is less and the charge is low; furthermore, the ornament is good and the surface is smooth and beautiful surface, thereby the invention can mainly be used in the fire protection for the tunnel wall.
Description
Technical field
The present invention relates to a kind of fire-retardant material, particularly relate to a kind of tunnel lightweight inorganic fireproof composite material.
Background technology
At present, fire-retardant material obtains the flameproof protection of more and more widely application, particularly vcehicular tunnel in highway, railway tunnel work.Existing be used for the tunnel fire proofing thermal insulation protection frie retardant coating and PLASTIC LAMINATED arranged.Wherein, frie retardant coating mainly contains fire-proof coating for tunnels, and PLASTIC LAMINATED has Thistle board, calcium silicate board, hollow lath, glass fiber reinforcement cement board, compound batten, compound big plate etc.These materials respectively have advantage, and weak point is also respectively arranged.Chinese patent 200610020287X discloses a kind of multifunctional light inorgaic fire-proof fiber protective layer material, and its component comprises inorganic fire fiber, expanded vermiculite powder, ordinary Portland cement, set accelerator, water reducer, thickening material and purification and sterilization agent.It is long that this material has fire resistance period, light weight, and high temperature resistant, heat-insulation and heat-preservation, cost are low, and advantages such as antibiotic and sterilizing can satisfy the requirement of construction steel structure flameproof protection admirably, are the flameproof protection of base material tunnel internal but be not suitable for the concrete.This is because one, and a little less than the light, the purification and sterilization agent can not be brought into play the antibiotic and sterilizing effect effectively in the tunnel, its two, can not satisfy in the hydrocarbon fire test conditions fast of heating up requirement to fire resistance period, its three, surface irregularity, ornamental poor.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, provide a kind of and can satisfy various constructing tunnel requirements, have the tunnel lightweight inorganic fireproof composite material of tunnel fire proofing defencive function admirably again.
Tunnel lightweight inorganic fireproof composite material of the present invention is composited by trilaminate material, and from inside to outside, the first layer is to spray the inorganic fibre fire-retardant material, and the second layer is the surface layer fire-retardant material, and the 3rd layer is the fire-retardant decorative material.Wherein,
The components based on weight percentage of spraying the inorganic fibre fire-retardant material is:
Inorganic fire fiber 20～70,
Expanded vermiculite powder 10～50,
Expanded graphite particles 0～5,
Ordinary Portland cement 8.5～30,
Set accelerator 0～1,
Water reducer 0～0.5,
Amounts of thickener 0～5.
Wherein, the inorganic fire fiber is the short yarn cutting of basalt continuous fiber, and its length is 0.5～2cm, diameter 4～7m.This fiber heat-conduction coefficient 0.031～0.038W/mK, Young's modulus 9100～11000kg/mm
2, tensile strength is 1.5 times of glass fibre, sound absorbing coefficient 0.9～0.99, water-intake rate are 1% of glass fibre.Use temperature scope-260 ℃～982 ℃, and the acid-alkali-corrosive-resisting ability is strong plays enhancing, fire-resistant, sound-absorbing, effect such as durable in material; Expanded vermiculite powder granularity is 20～40 orders, plays gas collection agent and adiabatic agent in material; The use temperature of expanded graphite particles is 300～3000 ℃, plays the central role of anti-hydrocarbon fire, and has good heat insulating effect; Ordinary Portland cement is 425#, is mainly adhesion component, forms base material after hardening, and can improve cohesiveness, and glazing at high temperature generates fine and close thermal insulation fire-proof layer, the fire resistance of strongthener again; Set accelerator is a calcium chloride, mainly plays the accelerated solidification effect, and material can fully be solidified in 6～12 hours, improves operating efficiency; Water reducer is a Sunmorl N 60S, can increase the plasticity-and the intensity of material, and retardation is arranged, and postpones initial set and final setting time, does not influence its firmness; Thickening material is a clay, and one or both in the organobentonite play thickening power, also have the effect that strengthens adhesive property and fire performance simultaneously.
The components based on weight percentage of surface layer fire-retardant material is:
Ordinary Portland cement 10～70,
Mica powder 1～20,
Gypsum 9～50,
Talcum powder 1～33,
Surface layer additive 0～6.
Wherein, the mica powder particle diameter is 80～100 orders, is a kind of high-temperature insulation material, the electrical strength height, and volume specific resistance is big, and dielectric loss and electric durability are good, play the fire-proof and thermal-insulation effect; Gypsum adjustable material set time and solidification intensity; Talcum powder mainly plays a part to regulate set time and gain in strength; The surface layer additive is a poly carboxylic acid sodium, and main effect is to regulate set time and increase levelling property.
The fire-retardant decorative layer material is a flame retardant type single face clad aluminum foil.It is to make (going up the compound aluminium strip Aluminum Foil Factory of hamming brocade produces) at clad aluminum foil inner face compacting composite flame-proof viscose glue, have fire-retardant, waterproof, high characteristics such as energy-conservation, smooth surface is smooth, the luminous reflectance factor height is to the tensile strength height, airtight in length and breadth, waterproof, good airproof performance, existing excellent decoration effect has the good flame function again.
In the tunnel lightweight inorganic fireproof composite material of the present invention, the thickness that sprays the inorganic fibre fireproof material layer is 10～30mm, and the thickness of surface layer fireproof material layer is 1～4mm.
The advantage of tunnel lightweight inorganic fireproof composite material of the present invention is, one can satisfy construction requirement moist, that be the tunnel inner wall surface of arched door type fully; Its two, the fire endurance height, the flameproof effect excellence, thermal conductivity is still extremely low under the high temperature of the hydrocarbon fire scene of a fire, in fire the sole mass loss little, fusing and drippage can not appear, the shape that holds its shape, thickness and density; Its three, light weight, dry density is low, only is 430kg/m
3, give inwall extra weightening finish in tunnel little; Its four, good weatherability, can stand for a long time air corrosion and wet environment weather invasion and attack; Its five, sound absorbing is good, sound absorbing coefficient reaches 0.5, high frequency fall dry obviously, help automobile in the tunnel, train falls dry; Its six, cost is low, construction intensity is little, executive cost is low, and surfacing is attractive in appearance, decorate properties is good.Be mainly used in the flameproof protection of inner surface of tunnel, also can be used for the flameproof protection of other concrete surface.
Embodiment
The embodiment of the invention 1～6 prescription is as shown in table 1.Its manufacture craft is, to at first the tunnel inner wall surface being carried out WATER REPELLENT, to spray each component of inorganic fibre fire-retardant material then mixes, and by spraying the inorganic fibre fire-retardant material: the weight ratio of water=1: 1.2 is mixed with water, be injected into the tunnel inner wall surface with the special-purpose ejecting machine, make its thickness reach 18mm ± 2mm, leave standstill 10 days to substantially dry; Again by the surface layer fire-retardant material: the weight ratio of water=1: 6 mixes, at the surface layer fire-retardant material of surfacing ground trowelling 1mm thickness; At last, paste flame retardant type single face clad aluminum foil equably in its surfacing immediately, make obtaining tunnel lightweight inorganic fireproof composite material at inner surface of tunnel.Its performance index are as shown in table 2.
Table 1: the embodiment of the invention 1～6 prescription (kg)
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Spray the inorganic fibre fire-retardant material | ||||||
| The short yarn cutting (length 0.5～2cm, diameter 4～7 μ m) of basalt continuous fiber | 20 | 35 | 45 | 55 | 64 | 70 |
| Expanded vermiculite powder (20-40 order) | 50 (20 orders) | 40 (30 orders) | 34 (40 orders) | 27 (20 orders) | 18 (30 orders) | 10 (40 orders) |
| Ordinary Portland cement (425#) | 30 | 22 | 16 | 11 | 8.9 | 8.5 |
| Expanded graphite particles | 0 | 1 | 2 | 3 | 4 | 5 |
| Calcium chloride | 0 | 0.25 | 0.35 | 0.6 | 0.7 | 1 |
| Sunmorl N 60S | 0 | 0.04 | 0.15 | 0.2 | 0.3 | 0.5 |
| Clay (example 1～3), organobentonite (example 4～6) | 0 | 1.71 | 2.5 | 3.2 | 4.1 | 5 |
| The surface layer fire-retardant material | ||||||
| Ordinary Portland cement | 70 | 60 | 50 | 40 | 20 | 10 |
| Mica powder | 20 | 18 | 17 | 10 | 5 | 1 |
| Gypsum | 9 | 15 | 20 | 30 | 40 | 50 |
| Talcum powder | 1 | 6 | 10 | 16 | 30 | 33 |
| Poly carboxylic acid sodium | 0 | 1 | 3 | 4 | 5 | 6 |
Table 2: the embodiment of the invention 1～3 performance index
| Test item | Establishing criteria | The standard index requirement | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Fire performance (anti-hydrocarbon fire) | GA98-2005 | Sheath thickness 20mm ± 2mm heats up fire endurance 〉=2h by hydrocarbon heating curve | Sheath thickness 22mm, fire endurance 2.6h | Sheath thickness 20mm, fire endurance 3h | Sheath thickness 19mm, fire endurance 2.7h |
| State in container | After stirring, be even glop, do not have caking | After stirring, be even glop, do not have caking | After stirring, be even glop, do not have caking | After stirring, be even glop, do not have caking | |
| Time of drying (surface drying)/h | ≤24 | 8 | 8 | 8 | |
| Cohesive strength/MPa | ≥0.1 | 0.15 | 0.14 | 0.10 | |
| Dry density (kg/m 3) | ≤800 | 410 | 430 | 450 | |
| Water tolerance/h | ≥720h | ≥720h | ≥720h | ≥720h | |
| Acid resistance/h | ≥360h | ≥360h | ≥360h | ≥360h | |
| Alkali resistance/h | ≥360h | ≥360h | ≥360h | ≥360h | |
| The freeze-thawing resistant circulation/time | ≥15 | ≥15 | ≥15 | ≥15 | |
| Humidity resistance/h | ≥720h | ≥720h | ≥720h | ≥720h | |
| Noise reduction coefficient/NRC | GBJ47-83 | / | 0.5 | 0.5 | 0.5 |
Claims (4)
1. a tunnel lightweight inorganic fireproof composite material is characterized in that being composited by trilaminate material, and from inside to outside, the first layer is to spray the inorganic fibre fire-retardant material, and the second layer is the surface layer fire-retardant material, and the 3rd layer is the fire-retardant decorative material; Wherein,
The components based on weight percentage of spraying the inorganic fibre fire-retardant material is:
Inorganic fire fiber 20～70,
Expanded vermiculite powder 10～50,
Expanded graphite particles 0～5,
Ordinary Portland cement 8.5～30,
Set accelerator 0～1,
Water reducer 0～0.5,
Thickening material 0～5;
The components based on weight percentage of surface layer fire-retardant material is:
Ordinary Portland cement 10～70,
Mica powder 1～20,
Gypsum 9～50,
Talcum powder 1～33,
Surface layer additive 0～6;
The fire-retardant decorative layer material is a flame retardant type single face clad aluminum foil.
2. tunnel lightweight inorganic fireproof composite material as claimed in claim 1, the inorganic fire fiber that it is characterized in that spraying in the inorganic fibre fire-retardant material is the short yarn cutting of basalt continuous fiber, its length is 0.5～2cm, diameter 4～7 μ m; Expanded vermiculite powder granularity is 20～40 orders; Ordinary Portland cement is 425#; Set accelerator is a calcium chloride; Water reducer is a Sunmorl N 60S; Thickening material is one or both in clay, the organobentonite.
3. tunnel lightweight inorganic fireproof composite material as claimed in claim 1 is characterized in that the surface layer additive in the surface layer fire-retardant material is a poly carboxylic acid sodium.
4. tunnel lightweight inorganic fireproof composite material as claimed in claim 1, the thickness that it is characterized in that spraying the inorganic fibre fireproof material layer is 10～30mm, the thickness of surface layer fireproof material layer is 1～4mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100507459A CN100554220C (en) | 2007-12-11 | 2007-12-11 | Tunnel lightweight inorganic fireproof composite material |
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| CNB2007100507459A CN100554220C (en) | 2007-12-11 | 2007-12-11 | Tunnel lightweight inorganic fireproof composite material |
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| CN101200380A true CN101200380A (en) | 2008-06-18 |
| CN100554220C CN100554220C (en) | 2009-10-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880146A (en) * | 2010-06-18 | 2010-11-10 | 北京工业大学 | Cement composite shaping phase change material mortar and preparation method thereof |
| CN102030549A (en) * | 2010-11-08 | 2011-04-27 | 宁波市胜源技术转移有限公司 | Method for manufacturing composite tunnel fireproof board |
| CN102153360A (en) * | 2011-05-10 | 2011-08-17 | 莱芜钢铁股份有限公司 | Gunning refractory for heating furnace |
| CN103848609A (en) * | 2012-11-29 | 2014-06-11 | 刘平 | Novel composite sound-insulation sheet material |
| CN105152594A (en) * | 2015-07-03 | 2015-12-16 | 枞阳县天筑新型建筑材料有限公司 | Energy-saving and environmental protection inorganic thermal insulation mortar special for buildings and preparation method thereof |
| CN110683815A (en) * | 2019-11-22 | 2020-01-14 | 河南东风电力工程有限公司 | Inorganic fireproof blocking material |
-
2007
- 2007-12-11 CN CNB2007100507459A patent/CN100554220C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880146A (en) * | 2010-06-18 | 2010-11-10 | 北京工业大学 | Cement composite shaping phase change material mortar and preparation method thereof |
| CN101880146B (en) * | 2010-06-18 | 2012-10-31 | 北京工业大学 | Cement composite shaping phase change material mortar and preparation method thereof |
| CN102030549A (en) * | 2010-11-08 | 2011-04-27 | 宁波市胜源技术转移有限公司 | Method for manufacturing composite tunnel fireproof board |
| CN102030549B (en) * | 2010-11-08 | 2013-02-20 | 宁波市胜源技术转移有限公司 | Method for manufacturing composite tunnel fireproof board |
| CN102153360A (en) * | 2011-05-10 | 2011-08-17 | 莱芜钢铁股份有限公司 | Gunning refractory for heating furnace |
| CN103848609A (en) * | 2012-11-29 | 2014-06-11 | 刘平 | Novel composite sound-insulation sheet material |
| CN103848609B (en) * | 2012-11-29 | 2015-08-12 | 刘平 | A kind of complex sound insulation sheet material |
| CN105152594A (en) * | 2015-07-03 | 2015-12-16 | 枞阳县天筑新型建筑材料有限公司 | Energy-saving and environmental protection inorganic thermal insulation mortar special for buildings and preparation method thereof |
| CN110683815A (en) * | 2019-11-22 | 2020-01-14 | 河南东风电力工程有限公司 | Inorganic fireproof blocking material |
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|---|---|
| CN100554220C (en) | 2009-10-28 |
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Assignee: Sichuan Tianfu Fireproof Material Co., Ltd. Assignor: Sichuan Fire Fighting Inst., Ministry of Public Safety Contract record no.: 2011510000332 Denomination of invention: Tunnel lightweight inorganic fireproof composite material Granted publication date: 20091028 License type: Exclusive License Open date: 20080618 Record date: 20111227 |