CN203069563U - Closed testing device for flame retardant property of bituminous mixture - Google Patents
Closed testing device for flame retardant property of bituminous mixture Download PDFInfo
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- CN203069563U CN203069563U CN 201320061545 CN201320061545U CN203069563U CN 203069563 U CN203069563 U CN 203069563U CN 201320061545 CN201320061545 CN 201320061545 CN 201320061545 U CN201320061545 U CN 201320061545U CN 203069563 U CN203069563 U CN 203069563U
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Abstract
The utility model discloses a closed testing device for the flame retardant property of a bituminous mixture. The testing device comprises a closed test case, wherein a transparent sealing door is mounted on the outer side wall on one side of the sealed test case, a gas inlet valve and a gas outlet valve are symmetrically mounted on the two side walls of the sealed test case adjacent to the outer side wall with the sealing door of the sealed test case, the gas outlet valve is connected with an infrared gas analyzer through a hose, an automatic ignition switch and a stopwatch are also mounted on the outer side wall of the sealed test case, a combustion platform is arranged in the middle of the bottom inside the sealed test case, a combustion dish is mounted on the combustion platform, an automatic burning torch is mounted on the bottom on one side of the combustion platform, and a dividing rule is mounted on the side wall, opposite to the side wall with the sealing door, inside the sealed test case. The closed testing device disclosed by the utility model can effectively simulate the combustion condition of a bituminous mixture road surface inside a tunnel, and the flame retardant property of the bituminous mixture is tested by the device disclosed by the utility model according to three indexes, including combustion time, flame height and combustion gas composition.
Description
Technical field
The utility model belongs to the road engineering material field, is specifically related to a kind of closed asphalt fire resistance proving installation.
Background technology
What China's tunnel road surface adopted at present is pavement performance bituminous pavement preferably, because ventilation condition is poor in the tunnel, adds that pitch is inflammable material, in case breaking out of fire tends to cause unnecessary casualties and property loss.So use has fire-retardant and modified bitumen smoke suppressing becomes the developing direction of tunnel sheet pavement from now on.
But when flame-retardant pitch is widely used, to the evaluation of bituminous pavement fire resistance also in testing standard and the standard of using for reference industries such as chemical materials, polymeric material.There are certain difficulty in these test methods and standard application to test and the evaluation of bituminous concrete pavement fire resistance, even some method is not applicable to test and the evaluation of flame retardant property of asphaltum.Be example with limited oxygen index method at present both at home and abroad comparatively commonly used, China's " fire-retardant road asphalt " (NB/SH/T0820-2010) limited oxygen index of the fire-retardant road asphalt of middle regulation is not less than 23, but experimental results show that some limited oxygen indexs have good flame retardancy equally less than 23 flame-retardant pitch, and the limited oxygen index test method is only at pitch, even studies show that use identical asphaltic binder when the grating type of asphalt and match ratio not simultaneously, often there is larger difference in its fire resistance.Therefore, the test of bituminous pavement fire resistance and evaluation should not be limited to test and the evaluation of asphaltic binder fire resistance, also tackle the fire resistance of asphalt and test and estimate.And present stage the asphalt burning test often carry out outdoor, be subjected to Effect of Environmental bigger, reliability and accuracy are relatively poor.Therefore in research asphalt flame-retardant technical field, a current technical matters that presses for solution provides a kind of airtight asphalt fire resistance proving installation of effectively simulation tunnel bituminous pavement burning.
Summary of the invention
Deficiency at the prior art existence, the purpose of this utility model is, a kind of closed asphalt fire resistance proving installation is provided, this device can provide the environment of simulation tunnel bituminous pavement combustion case in breaking out of fire time of a sealing for the laboratory, is used for testing more accurately the fire resistance of asphalt.
In order to realize above-mentioned technical assignment, the utility model takes following technical scheme to be achieved:
A kind of closed asphalt fire resistance proving installation, comprise the leakage test case, a lateral wall at the leakage test case is equipped with transparent hermatic door, be symmetrically installed with gas admittance valve and air outlet valve on adjacent two the leakage test case sidewalls of the lateral wall of the leakage test case at hermatic door place, air outlet valve links to each other with infrared gas analyzer by flexible pipe, and auto lighting switch and stopwatch also are installed on the lateral wall of leakage test case;
In the middle of the bottom surface of leakage test case inside, be provided with the burning platform, on the burning platform combustion boat is installed, on the leakage test case bottom surface of burning platform one side automatic burning torch is installed, on inner relative with the sidewall at the hermatic door place sidewall of leakage test case rule is installed.
The utility model provides the fire resistance of sealed environment research asphalt by the leakage test case, effectively the combustion case of asphaltic road-mix surface course in the simulation tunnel.The fire resistance that the utility model can be tested asphalt by burning time, flame height, three indexs of burning gases composition, multiple functional, can be applicable in asphalt fire resistance field tests.
Description of drawings
Fig. 1 is planar structure synoptic diagram of the present utility model.
Fig. 2 is the perspective view that the utility model is not installed infrared gas analyzer.
The implication of each label is among the figure: 1-leakage test case, 2-auto lighting switch, 3-gas admittance valve, 4-hermatic door, the automatic burning torch of 5-, the 6-platform that burns, 7-combustion boat, 8-infrared gas analyzer, 9-flexible pipe, 10-air outlet valve, 11-stopwatch, 12-rule.
Below in conjunction with drawings and Examples particular content of the present utility model is done explanation in further detail.
Embodiment
Below provide specific embodiment of the utility model, need to prove that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as depicted in figs. 1 and 2, a kind of closed asphalt fire resistance proving installation, comprise leakage test case 1, a lateral wall at leakage test case 1 is equipped with transparent hermatic door 4, be symmetrically installed with gas admittance valve 3 and air outlet valve 10 on adjacent two leakage test case 1 sidewalls of the lateral wall of the leakage test case 1 at hermatic door 4 places, air outlet valve 10 links to each other with infrared gas analyzer 8 by flexible pipe 9, and auto lighting switch 2 and stopwatch 11 also are installed on the lateral wall of leakage test case 1;
In the middle of the bottom surface of leakage test case 1 inside, be provided with burning platform 6, on the burning platform 6 combustion boat 7 is installed, on leakage test case 1 bottom surface of burning platform 6 one sides automatic burning torch 5 is installed, on inner relative with the sidewall at the hermatic door 4 places sidewall of leakage test case 1 rule 12 is installed.
Adopt auto lighting switch 2 and burning torch 5 igniting automatically, guarantee that experimental safe carries out.
Infrared-gas detector 8 is used for the detection of dynamic gas componant.
Stopwatch 11 is used for recording the burning time of bitumen mixture specimen.
The course of work of the present utility model is as described below:
Asphalt to be measured is processed into rut plate test specimen or marshal piece to be measured, open infrared gas analyzer 8 carry out preheating half an hour before the experiment, with all gases concentration of component in the accurate measurement leakage test case 1, flow is adjusted at 0.5L/min, error is in ± 0.05L/min, preheating is opened gas admittance valve 3 and air outlet valve 10 after finishing, infrared gas analyzer 8 usefulness flexible pipes 9 are connected on the air outlet valve 10, each concentration of component variation of gas is no more than 0.5%, each concentration of component β in the record leakage test case 1 in leakage test case 1
1, this moment, leakage test case 1 composition of gases within was identical with each gas componant of external environment, and flexible pipe 9 is unloaded from air outlet valve 10, closed gas admittance valve 3 and air outlet valve 10 to guarantee leakage test case 1 sealing in the bitumen mixture specimen combustion process.Open hermatic door 4, bitumen mixture specimen to be measured (rut plate or marshal piece) is placed in the combustion boat 7, the height h on the rule 12 of record test specimen upper surface correspondence
0, gasoline (rut plate test specimen adopts 40ml gasoline, and marshal piece adopts 10ml gasoline) evenly is poured on the test specimen surface, close hermatic door 4.Open auto lighting switch 2, control automatic burning torch 5 and light bitumen mixture specimen, open stopwatch 11 simultaneously, observe the bitumen mixture specimen combustion case, the reading h of the rule 12 of record different time flame height correspondence
n, draw flame height h
n ,=h
n-h
0Stopwatch stops timing after the fray-out of flame, record test specimen t burning time.Infrared gas analyzer 8 usefulness flexible pipes are connected on the air outlet valve 10, open air outlet valve 10, detect test specimen burning back each concentration of component of gas in the leakage test case 1, each concentration of component variation of gas is no more than 0.5%, each concentration of component β in the record leakage test case 1 in leakage test case 1
nFor the follow-up test data analysis.
Claims (1)
1. closed asphalt fire resistance proving installation, it is characterized in that, comprise leakage test case (1), a lateral wall at leakage test case (1) is equipped with transparent hermatic door (4), be symmetrically installed with gas admittance valve (3) and air outlet valve (10) on adjacent two leakage test casees (1) sidewall of the lateral wall of the leakage test case (1) at hermatic door (4) place, air outlet valve (10) links to each other with infrared gas analyzer (8) by flexible pipe (9), and auto lighting switch (2) and stopwatch (11) also are installed on the lateral wall of leakage test case (1);
In the middle of the inner bottom surface of leakage test case (1), be provided with burning platform (6), on the burning platform (6) combustion boat (7) is installed, on leakage test case (1) bottom surface of burning platform (6) one sides automatic burning torch (5) is installed, on inner relative with the sidewall at hermatic door (4) the place sidewall of leakage test case (1) rule (12) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061545 CN203069563U (en) | 2013-02-01 | 2013-02-01 | Closed testing device for flame retardant property of bituminous mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061545 CN203069563U (en) | 2013-02-01 | 2013-02-01 | Closed testing device for flame retardant property of bituminous mixture |
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| Publication Number | Publication Date |
|---|---|
| CN203069563U true CN203069563U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320061545 Expired - Fee Related CN203069563U (en) | 2013-02-01 | 2013-02-01 | Closed testing device for flame retardant property of bituminous mixture |
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| CN (1) | CN203069563U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237451A (en) * | 2014-09-26 | 2014-12-24 | 上海合评消防检测中心 | Device for separating standalone burning trolley from main burner fixing bottom plate |
| CN105319317A (en) * | 2015-09-11 | 2016-02-10 | 合肥国轩高科动力能源有限公司 | Lithium-ion battery electrolyte flame retardant property testing device |
| CN106093285A (en) * | 2016-08-26 | 2016-11-09 | 南京师范大学 | A kind of multicomponent gas diffusion combustion and combustion monitoring device |
| CN109557242A (en) * | 2018-12-28 | 2019-04-02 | 长安大学 | A kind of asphalt material flame retardant property test equipment and method |
| CN112067614A (en) * | 2020-09-04 | 2020-12-11 | 重庆交通大学 | Indoor model for identifying road surface state in highway tunnel and simulation method |
| CN112345685A (en) * | 2020-11-05 | 2021-02-09 | 江苏江化聚氨酯产品质量检测有限公司 | Standard test device for material surface combustion characteristics |
-
2013
- 2013-02-01 CN CN 201320061545 patent/CN203069563U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237451A (en) * | 2014-09-26 | 2014-12-24 | 上海合评消防检测中心 | Device for separating standalone burning trolley from main burner fixing bottom plate |
| CN105319317A (en) * | 2015-09-11 | 2016-02-10 | 合肥国轩高科动力能源有限公司 | Lithium-ion battery electrolyte flame retardant property testing device |
| CN105319317B (en) * | 2015-09-11 | 2017-07-18 | 合肥国轩高科动力能源有限公司 | A kind of lithium-ion battery electrolytes flame-retardant performance test device |
| CN106093285A (en) * | 2016-08-26 | 2016-11-09 | 南京师范大学 | A kind of multicomponent gas diffusion combustion and combustion monitoring device |
| CN109557242A (en) * | 2018-12-28 | 2019-04-02 | 长安大学 | A kind of asphalt material flame retardant property test equipment and method |
| CN112067614A (en) * | 2020-09-04 | 2020-12-11 | 重庆交通大学 | Indoor model for identifying road surface state in highway tunnel and simulation method |
| CN112345685A (en) * | 2020-11-05 | 2021-02-09 | 江苏江化聚氨酯产品质量检测有限公司 | Standard test device for material surface combustion characteristics |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20160201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |