阅读说明：本技术 敷面eps板防火性能检测方法 (Surface application EPS sheet fire protecting performance detection method ) 是由 李泽坤 刘丹 樊明兰 范文彬 李永辉 杨庆玲 张胜军 梁萍 于 2019-07-24 设计创作，主要内容包括：本发明公开了一种敷面EPS板防火性能检测方法,旨在解决现有技术中尚无无敷面EPS板的合格与否、相关的出厂标准的检测方法的技术问题。该敷面EPS板防火性能检测方法包括以下步骤：设置便于疏散,墙体及屋面不燃烧,可以强制排烟,且光线稍暗的建筑室,所述建筑室内设有试验平台；采用粘结砂浆以点框结合的方式,将敷面EPS样品粘结于试验墙上；取长松木条和短松木条交替逐层搭建成木垛；取敷面EPS板叠层堆放在所述试验平台上；点燃木垛；燃烧结束后测定敷面EPS样品是否合格。本发明建立了一种适用于粘贴在建筑墙体上和堆放在平整场地上敷面EPS板的防火性能检测标准,填补了敷面EPS板防火性能检测领域的空白。(The invention discloses a kind of surface application EPS sheet fire protecting performance detection methods, it is intended to the technical issues of solution there is no the detection method of qualified or not, relevant factory calibration of no surface application EPS sheet in the prior art.Detection method includes the following steps for the surface application EPS sheet fire protecting performance: setting is not burnt convenient for evacuation, wall and roofing, can be with forced fume exhaust, and the building room that light is slightly dark, the architecture indoor are equipped with test platform；Use adhesive mortar in such a way that frame combines, by surface application EPS sample cohesive in test wall；Long matsuki article and short matsuki article is taken alternately successively to be built into grillage；Surface application EPS sheet lamination is taken to be deposited on the test platform；Light grillage；It is whether qualified that surface application EPS sample is measured after burning.The present invention establishes a kind of fire protecting performance examination criteria suitable for being pasted on construction wall and being deposited in surface application EPS sheet on smooth location, has filled up the blank of surface application EPS sheet fire protecting performance detection field.)

1. a kind of surface application EPS sheet fire protecting performance detection method, which comprises the following steps:

(1) wall and the incombustible building room of roofing are set, and the architecture indoor is equipped with test wall and test platform；

(2) use adhesive mortar in such a way that frame combines, by the surface application EPS sample cohesive of 1200 × 600mm in test wall, Form the exposed surface application EPS sheet sample that bonded by 6 pieces of fissure of displacement, size is 2400 × 1800mm；Maintenance 3~5 days；The test Thermocouple is set at 50 ± 5mm of outer surface of surface application EPS sheet on wall；

(3) it takes the long matsuki article of a height of 600 × 40 × 30mm of length and width to tile, then takes the short matsuki article and length of 400 × 40 × 30mm The vertical direction paving of matsuki article rides over thereon, and alternating is successively built into grillage of the length, width and height having a size of 600 × 400 × 300mm；Institute The vertical range for stating the surface application EPS sheet lower edge in grillage top edge and test wall is 200 ± 10mm；

(4) it takes 6~12 block sizes to be deposited in the test for the surface application EPS sheet lamination of 1200 × 600mm or 600 × 600mm to put down On platform, the horizontal distance apart from the grillage edge is 300 ± 10mm；

(5) grillage is lighted；It calls the roll of the contestants in athletic events the temperature of thermocouple, when electric thermo-couple temperature is higher by initial temperature T₀Up to 100 DEG C and duration When reaching 20s, which is denoted as to t at the beginning of testing_s；Observation, record sample combustion state variation；

(6) stop 8 after burning~for 24 hours in, measurement flame in specimen surface and internal vertical and horizontal both direction vertical spread and The range damaged determines whether surface application EPS sample is qualified.

2. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (1) In, the control of Building Indoor Environment temperature is 20 ± 15 DEG C, and the air velocity at more than ground 2000 ± 100mm height is not more than 2m/s。

3. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (2) In, the seam crossing of surface application EPS sheet and the surrounding of sample stick fireproof heat insulating item or the surface application EPS sheet surrounding apply four sides, And do not stick on fireproof heat insulating item.

4. surface application EPS sheet fire protecting performance detection method according to claim 3, which is characterized in that the side is not added resistance to Alkali grid cloth.

5. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (2) In, thermocouple uses precision for II grades, the K-type nickel chromium triangle-nisiloy armoured thermocouple of string diameter 0.5mm, outer diameter no more than 3mm.

6. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (3) In, the density of matsuki article is 0.5~0.6g/cm³, moisture content is 10~16%.

7. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (4) In, the surface application EPS sheet lamination of stacking places gravity block far from the top of grillage.

8. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (5) In, data acquisition and the camera shooting record of no less than 3min are carried out before igniting.

9. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (6) In, sample observes flame vertically and horizontally both direction vertical spread and the situation damaged in cavity if there is cavity； Measure the scaling loss and dissection scope that sample outer surface occurs.

10. surface application EPS sheet fire protecting performance detection method according to claim 1, which is characterized in that in the step (6) In, detect whether that qualified method is as follows:

A. for the exposed surface application EPS sheet sample for being pasted on test metope, when there is following defined any phenomenon, sample Fire-protecting test result be it is unqualified:

I. occurs burning comprehensively during test, test is terminated in advance；

II. during entire test, sample appearance is largely collapsed, or the object that collapses is fallen on except slump region；

When the following conditions meet simultaneously, the fire-protecting test result judgement of sample is qualification:

I. pull-out test is carried out to sample first before combustion test, and pull-out test intensity results meet relevant criterion requirement；

II. in combustion test surface application EPS sheet surface application part, do not occur melting contracting phenomenon simultaneously with styrofoam；

III. there is not lasting visible flame in sample in combustion test；

IV. sample divides storehouse compartment substantially intact after combustion test；

B. it for the surface application EPS sheet stacked, ignites as long as heap putting material is baked, and the duration is more than 60s, is not conformed to as Otherwise lattice are qualification.

Technical field

The present invention relates to construction material performance detection technical fields, and in particular to a kind of surface application EPS sheet fire protecting performance detection Method.

Background technique

External-wall heat-insulation material mostly uses polystyrene molded plate at present, though its thermal and insulating performance be other materials without What method replaced, but there is also very big defects: benzene plate is combustible material, is easily ignited by external fire source and leads to that fire occurs Calamity, and then the personnel in building is made to come to harm, property incurs loss.

Inventor is bad for the problem that external-wall heat-insulation material fire protecting performance, and there are many security risks, by External Wall Thermal insulation material fire prevention is tackled key problems for many years, has developed slurry filleting surface application EPS sheet external thermal insulation system, and then further improvement is Surface application EPS sheet fireproof heat insulating item divides storehouse external insulating system for thinly plastered external wall.

Current insulation structure for a building exterior wall is widely used that the deposited one layer of fire prevention slurry in five face of EPS sheet, and (Chinese invention is special Benefit: ZL 201110259337.0), if only apply one big face can use fireproof heat insulating item (Chinese invention patent: 201610855347.3) 1.5 centimetres to 1.8 centimetres of gap, is reserved when construction between plate and plate, and is filled out with flame-retardant slurry jointing It is real, EPS sheet is subjected to a point storehouse and is isolated, then pressure network is plastered, and forms external thermal insulation system.During the exterior wall heat-preserving system has passed through Architecture science research institute, state prevents fires research institute " outer heat preservation system window fire test ".

However, there is no the qualified or not detection method of surface application EPS sheet in the industry, also without relevant factory testing standard.

Summary of the invention

It is suitable for being pasted onto construction wall (brick or concrete walls) the technical problem to be solved in the present invention is to provide one kind On surface application EPS sheet, in surface application EPS sheet exposed period (not pressure network of not plastering) and be deposited in surface application EPS sheet on smooth location Fire protecting performance detection method.To solve qualified or not, the relevant factory calibration that there is no surface application EPS sheet in the prior art The technical issues of detection method.

In order to solve the above technical problems, the present invention adopts the following technical scheme:

Design a kind of surface application EPS sheet fire protecting performance detection method, comprising the following steps:

(1) convenient for evacuation, wall and roofing do not burn for setting, can be with forced fume exhaust, and the building room that light is slightly dark, the building Interior is equipped with test wall and test platform；

(2) use adhesive mortar in such a way that frame combines, by the surface application EPS sample cohesive of 1200 × 600mm in test wall, Form the exposed surface application EPS sheet sample that bonded by 6 pieces of fissure of displacement, size is 2400 × 1800mm；Maintenance 3~5 days；The test Thermocouple is set at 50 ± 5mm of outer surface of surface application EPS sheet on wall；

(3) it takes the long matsuki article of a height of 600 × 40 × 30mm of length and width to tile, then takes the short matsuki article and length of 400 × 40 × 30mm The vertical direction paving of matsuki article rides over thereon, and alternating is successively built into grillage of the length, width and height having a size of 600 × 400 × 300mm；Institute The vertical range for stating the surface application EPS sheet lower edge in grillage top edge and test wall is 200 ± 10mm；

(4) it takes 6~12 block sizes to be deposited in the test for the surface application EPS sheet lamination of 1200 × 600mm or 600 × 600mm to put down On platform, the horizontal distance apart from the grillage edge is 300 ± 10mm；(5) grillage is lighted；It calls the roll of the contestants in athletic events the temperature of thermocouple, works as heat Galvanic couple temperature is higher by initial temperature (T₀) up to 100 DEG C and when the duration reaches 20s, at the beginning of which is denoted as test Between (t_s)；Observe the variation of sample combustion state；

(6) stop 8 after burning~for 24 hours in, measurement flame in specimen surface and internal vertical and horizontal both direction vertical spread and The range damaged determines whether surface application EPS sample is qualified.

Preferably, in step (1), the Building Indoor Environment temperature is 20 ± 15 DEG C, more than ground 2000 ± 100mm Air velocity at height is not more than 2m/s.

Preferably, in step (2), the seam crossing of the surface application EPS sheet and the surrounding of sample stick fireproof heat insulating item, or The surface application EPS sheet surrounding applies four sides and does not stick on fireproof heat insulating item.

Preferably, alkaline-resisting grid cloth is not added in the side.

Preferably, in step (2), it is II grades, string diameter 0.5mm, outer diameter no more than 3mm that the thermocouple, which uses precision, K-type nickel chromium triangle-nisiloy armoured thermocouple.

Preferably, in step (3), the density of the matsuki article is 0.5~0.6g/cm³, moisture content is 10~16%.

Preferably, in step (4), the surface application EPS sheet lamination of the stacking places gravity block far from the top of grillage.

Preferably, in step (5), data acquisition and the camera shooting record of no less than 3min are carried out before igniting.

Preferably, in step (6), sample observes flame vertically and horizontally two sides in cavity if there is cavity The situation for creeping up and damaging；The scaling loss and dissection scope that measurement, record sample outer surface occur.

Preferably, in the step (6), detect whether that qualified method or standard are as follows:

A. for the exposed surface application EPS sheet sample for being pasted on test metope, when there is following defined any phenomenon, sample Fire-protecting test result be it is unqualified:

I. occurs burning comprehensively during test, test is terminated in advance；

II. during entire test, sample appearance is largely collapsed, or the object that collapses is fallen on except slump region.

When the following conditions meet simultaneously, the fire-protecting test result judgement of sample is qualification:

I. pull-out test is carried out to sample first before combustion test, and pull-out test intensity results meet relevant criterion requirement；

II. in combustion test surface application EPS sheet surface application part, do not occur melting contracting phenomenon simultaneously with styrofoam；

III. there is not lasting visible flame in sample in combustion test；

IV. sample divides storehouse compartment substantially intact after combustion test；

B. it for the surface application EPS sheet stacked, ignites as long as heap putting material is baked, and the duration is more than 60s, is not conformed to as Otherwise lattice are qualification.

Compared with prior art, main advantageous effects of the invention are:

Establish the surface application EPS sheet and be deposited in smooth field that one kind is suitable for being pasted on construction wall (brick or concrete walls) The fire protecting performance examination criteria of ground surface application EPS sheet has filled up the blank of surface application EPS sheet fire protecting performance detection field, to construction Naked state fire prevention is effective during wall and during stacking on live EPS sheet.

Detailed description of the invention

Fig. 1 is laboratory's floor map.

Fig. 2 is the sample schematic diagram being pasted on test metope.

Specific embodiment

Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail It describes the bright present invention in detail, does not limit the scope of the invention in any way.

Related instrument and equipment is routine instrument device unless otherwise instructed in the examples below；It is related Sustained combustion is unless otherwise instructed specimen surface or its top duration to be greater than the flame of 5s；Related burning is residual Piece, unless otherwise instructed, be during the test, the sustained combustion to fall off from sample not less than 60s(do not include yin burn when Between) sample relic；Related density flaming droplet or particle are unless otherwise instructed during the test, from sample Isolated substance or particle；