A kind of fireproof blocking sheet material
Technical field
The utility model relates to a kind of fireproof blocking sheet material, and be used for fire proof seal building cable, pipeline etc. and pass the hole that floor or body of wall form, or as the back-fire relief partition wall of cable duct, cable tunnel.Belong to fire-proof sealing material.
Background technology
Building masonry wall and floor inevitably will be reserved hole and pass in order to allow cable, pipeline etc. to run through thing when design, this has destroyed as the body of wall of fire separation member and the fire endurance of floor.If fireproof blocking can not be carried out effectively in these apertures, at first be that fire compartment has lost integrality and validity, secondly, in the fire, these holes will become the passage of flame, smog and toxic gas, cause huge property loss and casualties.
The material that is commonly used to these holes of fireproof blocking has back-fire relief bag, anti-chamotte and inorganic putty, and these materials appear its great defective and drawback in the uses of more than ten years in the past gradually.The close cigarette effect that the fireproof blocking system that can not satisfy the back-fire relief bag should play also can't satisfy the air-tightness requirement of some special industry needs, and back-fire relief wraps in the work progress the very difficult control of construction quality, is difficult to the anti-fire action that guarantees that it should reach.Anti-chamotte majority contains chlorinated paraffin wax and organic solvent, and long-term use meeting causes corrosion to cable and metal crane span structure, pipeline etc., forms disaster hidden-trouble on the contrary.Inorganic putty range of application is narrow, and cracking, construction inconvenience easily.
In addition, these products also are not suitable for the fireproof blocking of large hole, can not satisfy the specification requirement as cable tunnel, cable duct back-fire relief partition wall.
Summary of the invention
At above-mentioned deficiency, the purpose of this utility model provides a kind of hole that fire proof seal building cable, pipeline etc. pass floor or body of wall formation that is used for, particularly seal large hole and, can guarantee close property of good cigarette and bubble-tight fireproof blocking sheet material after the installation as the back-fire relief partition wall of cable duct, cable tunnel.
This fireproof blocking sheet material by two-layer at least mineral wool board and at least one deck steel screen layer press and to form, the upper and lower surface layer is a mineral wool board, the mineral wool board surface applied is the thick fire resistant coating of 0.1mm at least.
Described mineral wool board is at least a in the rock cotton board, aluminium silicate wool plate, ceramic beaverboard of high-intensity high-density, and its compressive strength is that apparent density is greater than 100kg/m greater than 2kPa
3This mineral wool board has good self-supporting ability and heat-proof quality.
Described steel wire is selected from galvanized hexagonal wire mesh, embroider net, twist at least a in the flower net.Its tension, tear-proof that is used to increase fireproof blocking sheet material is shock resistance together, the impact property of anti-fire-fighting lance when particularly increasing test.
Described fire resistant coating has the fiery carbonization expansion character of chance, and expansion charcoal layer has good anti-ablation property and heat-proof quality.
In use, this fireproof blocking sheet material can cut into arbitrary shape to be suitable for various bore hole sizes and the fireproof blocking that runs through thing.Cooperate fireproof seal gum during construction, thereby reach excellent air-tightness and the close property of cigarette in order to bonding and fluid sealant.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the perspective view of an embodiment of the utility model.1 is fire resistant coating among the figure, the 2nd, and mineral wool board, the 3rd, steel wire.
Fig. 2 is that fireproof blocking sheet material of the present invention is used for the schematic diagram that fireproof blocking cable and crane span structure run through the hole that body of wall forms.1 is concrete wall among the figure, the 2nd, and cable, the 3rd, metal crane span structure, the 4th, fireproof blocking sheet material, the 5th, fire resistant coating.
The specific embodiment
Embodiment 1
A preferred embodiment of the present utility model is, with reference to the accompanying drawings 1, be perspective view.Be made up of three layers of rock cotton board and two-layer steel wire, product size is 1200 * 600 * 50mm
3, fire resistant coating thickness is 0.5mm.By testing result such as the following table 1 of national fire-proof construction material quality supervision and test center according to company standard Q/HBT02001-2008 " fireproof blocking sheet material ":
Table 1
Sequence number |
Interventions Requested |
Standard clause |
Technical indicator | Assay |
Conclusion | |
1 |
Fire resistance |
5.2 |
T3 level 〉=3.00h, not lost integrity; Unignited cotton pad; Do not form hole, do not have the flame of continuous 10s to pass; Tested material does not produce volume contraction, does not form the above crack of 1mm width, and the visible flame of naked eyes.For losing thermal insulation; The tested material back of the body and face any point temperature rise≤180 ℃; Any thing that runs through is carried on the back fiery face end distance plugging material 25mm and is gone out surface temperature rise≤180 ℃. |
180min, not lost integrity.Tested material is by 76 ℃ of fiery face maximum temperaturerises; Run through thing back of the body fire end apart from 162 ℃ of plugging material 25mm place surface temperature rises. |
Qualified |
2 |
Outward appearance |
5.3 |
Sheet material, surfacing |
Meet the requirements |
Qualified |
3 |
Rupture strength MPa |
5.3 |
〉=0.10 |
0.38 |
Qualified |
4 |
Resistance to water, d |
5.3 |
〉=3, not swelling, do not ftracture |
3, meet the requirements |
Qualified |
5 |
Oil resistivity, d |
5.3 |
〉=3, not swelling, do not ftracture |
3, meet the requirements |
Qualified |
6 |
Humidity resistance, h |
5.3 |
〉=120, do not ftracture not efflorescence |
7, meet the requirements |
Qualified |
7 |
The freeze-thawing resistant circulation, inferior |
5.3 |
〉=15, do not ftracture not efflorescence |
15, meet the requirements |
Qualified |
8 |
Combustibility |
5.1 |
Be not less than the FV-0 level of GB/T2408-1996 regulation |
The FV-0 level |
Qualified |
Embodiment 2
Another preferred embodiment of the present utility model is to change the rock cotton board among the embodiment 1 into the aluminium silicate wool plate, other parameter constants.Its test result such as table 2.Difference is that embodiment 2 thermal insulations are relatively poor, and rupture strength reduces.Illustrate that aluminium silicate wool does not have the good heat-insulation effect of rock wool.
Table 2
Sequence number |
Interventions Requested |
Standard clause |
Technical indicator | Assay |
Conclusion | |
1 |
Fire resistance |
5.2 |
T3 level 〉=3.00h, not lost integrity; Unignited cotton pad; Do not form hole, do not have the flame of continuous 10s to pass; Tested material does not produce volume contraction, does not form the above crack of 1mm width, and the visible flame of naked eyes.For losing thermal insulation; The tested material back of the body and face any point temperature rise≤180 ℃; Any thing that runs through is carried on the back fiery face end distance plugging material 25mm and is gone out surface temperature rise≤180 ℃. |
180min, not lost integrity.Tested material is by 89 ℃ of fiery face maximum temperaturerises; Run through thing back of the body fire end apart from 165 ℃ of plugging material 25mm place surface temperature rises. |
Qualified |
2 |
Outward appearance |
5.3 |
Sheet material, surfacing |
Meet the requirements |
Qualified |
3 |
Rupture strength MPa |
5.3 |
〉=0.10 |
0.25 |
Qualified |
4 |
Resistance to water, d |
5.3 |
〉=3, not swelling, do not ftracture |
3, meet the requirements |
Qualified |
5 |
Oil resistivity, d |
5.3 |
〉=3, not swelling, do not ftracture |
3, meet the requirements |
Qualified |
6 |
Humidity resistance, h |
5.3 |
〉=120, do not ftracture not efflorescence |
7, meet the requirements |
Qualified |
7 |
The freeze-thawing resistant circulation, inferior |
5.3 |
〉=15, do not ftracture not efflorescence |
15, meet the requirements |
Qualified |
8 |
Combustibility |
5.1 |
Be not less than the FV-0 level of GB/T2408-1996 regulation |
The FV-0 level |
Qualified |
Embodiment 3
Other conditions are constant, change fire resistant coating thickness among the embodiment 1 into 1mm, its test result such as table 3.Difference is that embodiment 3 has better effect of heat insulation.Illustrate that the thickness that increases fire resistant coating can improve the overall performance of fireproof blocking system.
Sequence number |
Interventions Requested |
Standard clause |
Technical indicator | Assay |
Conclusion | |
1 |
Fire resistance |
5.2 |
T3 level 〉=3.00h, not lost integrity; Unignited cotton pad; Do not form hole, do not have the flame of continuous 10s to pass; Tested material does not produce volume contraction, does not form the above crack of 1mm width, and the visible flame of naked eyes.For losing thermal insulation; The tested material back of the body and face any point temperature rise≤180 ℃; Any thing that runs through is carried on the back fiery face end distance plugging material 25mm and is gone out surface temperature rise≤180 ℃. |
180min, not lost integrity.Tested material is by 60 ℃ of fiery face maximum temperaturerises; Run through thing back of the body fire end apart from 148 ℃ of plugging material 25mm place surface temperature rises. |
Qualified |
2 |
Outward appearance |
5.3 |
Sheet material, surfacing |
Meet the requirements |
Qualified |
3 |
Rupture strength MPa |
5.3 |
〉=0.10 |
0.26 |
Qualified |
4 |
Resistance to water, d |
5.3 |
〉=3, not swelling, do not ftracture |
3, meet the requirements |
Qualified |
5 |
Oil resistivity, d |
5.3 |
〉=3, not swelling, do not ftracture |
3, meet the requirements |
Qualified |
6 |
Humidity resistance, h |
5.3 |
〉=120, do not ftracture not efflorescence |
7, meet the requirements |
Qualified |
7 |
The freeze-thawing resistant circulation, inferior |
5.3 |
〉=15, do not ftracture not efflorescence |
15, meet the requirements |
Qualified |
8 |
Combustibility |
5.1 |
Be not less than the FV-0 level of GB/T2408-1996 regulation |
The FV-0 level |
Qualified |