CN107607441A - It is a kind of to determine fiber and pitch or the experimental provision and its application method of asphalt mastic adhesion property - Google Patents
It is a kind of to determine fiber and pitch or the experimental provision and its application method of asphalt mastic adhesion property Download PDFInfo
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- CN107607441A CN107607441A CN201710966035.4A CN201710966035A CN107607441A CN 107607441 A CN107607441 A CN 107607441A CN 201710966035 A CN201710966035 A CN 201710966035A CN 107607441 A CN107607441 A CN 107607441A
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- Prior art keywords
- fiber
- lint
- pitch
- asphalt
- retainers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Fiber and pitch or the experimental provision and its application method of asphalt mastic adhesion property are determined the present invention relates to a kind of, the experimental provision includes experiment porch (1) and control panel (14), and experiment porch (1) includes environmental cabinet, metal sample-containing dish, lint retainer, infrared temperature sensor etc.；Because this experimental provision takes strain controlling, pulling force between every 0.5 second measure primary fiber and pitch or rubber cement, substantially increase the reliability of data, closer to cohesive force real between pitch and fiber, fiber and pitch and the cementitiousness of asphalt mastic can be evaluated, allows people preferably to go to select fiber to come modified pitch or asphalt mastic.
Description
【Technical field】
The invention belongs to pitch and asphalt mastic performance detection technical field.A kind of more particularly it relates to measure
Fiber and pitch or the experimental provision of asphalt mastic adhesion property, further relate to the application method of the experimental provision.
【Background technology】
Fiber and modified asphalt improves the pavement performance of asphalt by changing the performance of pitch.Fibre modification at present
The preparation method of pitch has mechanical mixing method, solvent method, glue milling process or colloid milling.Fiber is added in matrix pitch, system
Into fiber and modified asphalt, wherein fibre modifier forms new balance interface by physical action and chemical action with pitch, formed
New chemical bond, so as to change asphalt performance.New interface that different fibers and different ratio are formed to pitch, adsorbed film are different
, the fundamental property for causing modified pitch is different, and these interfaces, adsorbed film are by many irregular hills and recessed peak group
Into.At present, China is tested by needle penetration experiment, extensibility, softening point is tested, rotary viscosity is tested, pitch oil absorbency is real
Test and by experiments such as dynamic shear rheological experiments, judge that different fiber and modified asphalt and different addition quantity fibers drip to modified
The influence of blue or green performance.Experimental design or the specification of degree are not bonded specifically for fiber and pitch, and because above-mentioned experiment is grasped
Work amount is big, time-consuming, can't obtain the adhesion property between different fibers and modified pitch or Stability of Modified Asphalt Mortar as early as possible, and
The uncontrollable factor of a series of environment such as existence time, temperature in operation, and fiber and pitch circle can not be tested out
The real interfacial film effect in face.The A of CN 105181585 disclose a kind of fiber and asphalt adhesive performance test device and method, but
Do not account for that physical action and chemical action can occur between fiber and pitch in this method, calculate in this case in fiber
Upper parcel pitch may include the fiber being had an effect with pitch so that experimental result is not accurate enough, although it is contemplated that even
Speed pulls out fiber, but under different draw speeds different may there is necessarily institute's band asphalt quality to experimental result on fiber
Influence.
Therefore, the present inventor, by many experiments and analysis and summary, completes finally on the basis for summarizing prior art
The present invention.
【The content of the invention】
[technical problems to be solved]
Fiber and pitch or the experimental provision of asphalt mastic adhesion property are determined it is an object of the invention to provide a kind of.
It is a further object to provide the measure fiber and the experiment dress of pitch or asphalt mastic adhesion property
The application method put.
[technical scheme]
The present invention is achieved through the following technical solutions.
Fiber and pitch or the experimental provision of asphalt mastic adhesion property are determined the present invention relates to a kind of, it includes experiment
Platform 1 and control panel 14, it is characterised in that experiment porch 1 include environmental cabinet 2, heated at constant temperature resistance wire 3, metal sample-containing dish 4,
Fixed support 6, crossbeam 7,1 lint retainer 8,2 lint retainer 9, No. 3 lint retainers 10, infrared temperature sensors
12 with support 13；Control panel 14 includes display screen 15, device shift knob 16, temperature knob 17, rising button 18, printing
Button 19, decline button 20, printing equipment 21 and power set-motor 25；
The installation environment case 2 on experiment porch 1, the mounting and fixing bracket 6 in environmental cabinet 2, its lower end is fixed on experiment
1 on platform, they are connected into an entirety by its upper end by crossbeam 7；Configured in the bottom of 6 internal environment case of fixed support 2
Heated at constant temperature resistance wire 3；Support 13 is placed above heated at constant temperature resistance wire 3, metal sample-containing dish 4 is rest upon in support 13；
No. 1 lint retainer 10 of lint retainer 9,3 of lint retainer 8,2 is installed on crossbeam 7 to pass with infrared temperature
Sensor 12；Infrared temperature sensor 12 is connected by wire with display screen 15,8, No. 2 lint retainers 9 of No. 1 lint retainer with
No. 3 lint retainers 10 are connected by wire with rising button 18 and declining button 20；These lint retainers are by force snesor
The information of 26 collections is shown after being converted by controller 27 in display screen 15；
The data shown on display screen 15 are transported to printing equipment 21 by print button 19 and printed；Whole experiment dress
Power supply is put to be controlled by device shift knob 16.
According to another preferred embodiment of the present invention, environmental cabinet 2 is made of pyroceram plate, is controlled in direction
The glass plate of the side of panel 14 processed can open and close.
According to another preferred embodiment of the present invention, heated at constant temperature resistance wire 3 is added by the regulation of temperature knob 17
Thermal power, while the temperature of the metal sample-containing dish 4 heated by heated at constant temperature resistance wire 3 is detected using infrared temperature sensor 12,
The temperature signal of detection is transferred to display screen 15 and shows its temperature.
According to another preferred embodiment of the present invention, rise button 18 and control 8, No. 2 fiber clamps of No. 1 lint retainer
Holder 9 is with No. 3 lint retainers 10 to rise less than 10mm/min speed simultaneously.
According to another preferred embodiment of the present invention, decline button 20 and first room, the second room and the 3rd are set
Room, they control 8, No. 2 lint retainers 9 of No. 1 lint retainer and No. 3 lint retainers 10 respectively successively, make they with
Certain speed declines.
According to the present invention another preferred embodiment, metal sample-containing dish 4 be equably separated into No.1 pond 4-1, No. two
Pond 4-2 and No. three pond 4-3, and in the metal sample-containing dish 4 in its height 2/3 at be provided with 5, No. 1 lint retainer 7,2 of graduation mark
Number lint retainer 8 is corresponding with No. three pond 4-3 with No.1 pond 4-1, No. two pond 4-2 respectively with No. 3 lint retainers 9, and
It is vertical with the bottom of metal sample-containing dish 4.
According to another preferred embodiment of the present invention, display screen 14 shows pitch or asphalt mastic temperature, environmental cabinet
Every 0.5 second measure stress of temperature, preset temperature, loading velocity, each lint retainer and fiber-asphalt grouting film-strength Si are real
Test result.
According to another preferred embodiment of the present invention, described fiber is inorfil or organic fiber, inorganic fibre
Dimension is selected from basalt fibre, glass fibre or asbestos fibre selected from inorfil；Organic fiber is selected from polyester fiber or polypropylene
Nitrile fiber.
The invention further relates to the application method of the experimental provision.
The step of experimental provision application method, is as follows：
A, Preparatory work of experiment
Pitch or asphalt mastic are heated to molten condition in an oven, fiber is clamped in No. 1 fibre respectively vertically downwardly
Tie up on 7, No. 2 lint retainers 8 of clamper and No. 3 lint retainers 9, their lower end is in metal sample-containing dish 4, and with
The bottom of metal sample-containing dish 4 is vertical；
B, fiber-asphalt grouting film is formed
Opening temperature knob 16 heats environmental cabinet 2, and step A molten asphalt or drip are poured into metal sample-containing dish 4
Blue or green rubber cement stands 15~18min, allows pitch or asphalt mastic fully to be acted on fiber to graduation mark 5, formed firm fiber-
Asphalt grouting film；
C, test
Start and rise button 17, by the fiber in pitch or asphalt mastic is immersed to be carried less than 10mm/min speed simultaneously
Rise, corresponding every 0.5 second measure stress value is read by display screen 14, fiber-pitch that 1-3 fibers are calculated by following formula is made
With film-strength Si：
Fiber-asphalt grouting film-strength Si=stress σi× speed V
In formula：
I=1-3；
Pulling force FiTo record maximum pull average value three times, unit N in experimentation；
The area that area S contacts for fiber with pitch or asphalt mastic, unit mm2；
Diameter D be fiber diameter, unit mm；
Stress σi, unit Pa；
Strength Si, unit Pa*mm/min；
Speed V is that fiber lifts speed, unit mm/min；
The fiber of this fiber-asphalt grouting film-strength S is calculated by following formula：
Fiber-asphalt grouting film-strength S=(No. 1 fiber-asphalt grouting film-strength S1+ No. 2 fibers-asphalt grouting film is strong
Spend S2+ No. 3 fibers-asphalt grouting film-strength S3)/3。
The present invention is described in more detail below.
Fiber and pitch or the experimental provision of asphalt mastic adhesion property are determined the present invention relates to a kind of, it is flat that it includes experiment
Platform 1 and control panel 14, experiment porch 1 include environmental cabinet 2, heated at constant temperature resistance wire 3, metal sample-containing dish 4, fixed support 6, horizontal stroke
9, No. 3 lint retainers 10 of the lint retainer of lint retainer 8,2 of beam 7,1, infrared temperature sensor 12 and support 13；Control
Panel 14 processed is pressed including display screen 15, device shift knob 16, temperature knob 17, rising button 18, print button 19, decline
Button 20, printing equipment 21 and power set-motor 25；Concrete structure is referring to accompanying drawing 1.
The installation environment case 2 on experiment porch 1, the mounting and fixing bracket 6 in environmental cabinet 2, its lower end is fixed on experiment
1 on platform, they are connected into an entirety by its upper end by crossbeam 7；Configured in the bottom of 6 internal environment case of fixed support 2
Heated at constant temperature resistance wire 3；Support 13 is placed above heated at constant temperature resistance wire 3, metal sample-containing dish 4 is rest upon in support 13；
The environmental cabinet 2 that the present invention uses is made of pyroceram plate, in the glass towards the side of control panel 13
Plate can open and close.Described pyroceram plate be it is a kind of being capable of bearing temperature -50~350 DEG C, 2~5mm of thickness
Glass plate.The pyroceram plate that the present invention uses is current market sales of product, such as by the only special glass of Xiamen City's benefit
Company of Co., Ltd is with the pyroceram plate of the resistance to 350 degree of high temp glass sale of trade name.
The environmental cabinet 2 that the present invention uses can open and close in the glass plate towards the side of control panel 14, so as to work
Associative operation can easily be carried out by making personnel.
In the present invention, two groups of fixed supports 6 are being set close to the two side of environmental cabinet 2, it is flat that its lower end is fixed on experiment
1 on platform, they are connected into an entirety by its upper end by crossbeam 7.
The fixed support 6 and crossbeam 7 of the present invention is all made of stainless steel material.
No. 1 lint retainer 8,2 lint retainer 9,3 lint retainer 10 and infrared temperature are installed on crossbeam 7
Sensor 12；Referring specifically to accompanying drawing 1.
Described lint retainer is that a kind of clip that can be detected fibre stress and can firmly clamp fiber or tubulose are fine
Clamper 22 is tieed up, the tubular fiber clamper 22 is made up of fiber clamping pipe 23 with flat head screw 24, and fiber is put into fiber
Clamping pipe 23 is tightened flat head screw 24 and can be securely fixed in fiber on fiber clamping pipe, and detection fibre stress minimum should not
Less than 5000MPa.The lint retainer that the present invention uses is controlled by force snesor 26, described one end of force snesor 26 and fiber
Clip or fiber the clamping pipe 23 of clamper are connected with fiber contacts area, and the other end is connected with power set-motor 25, power sensing
The information that device 26 gathers is shown after being converted by controller 27 in display screen 15.The force snesor 26 that the present invention uses is HBM public affairs
The U9C micro-force sensors of sale are taken charge of, concrete structure is referring to accompanying drawing 4.
8, No. 2 lint retainers 9 of No. 1 lint retainer and No. 3 lint retainers 10 pass through wire and installation control panel
Rising button 18 and decline button 20 on 14 connect；
When rising the startup of button 18, power set-motor 25 passes through wire and drives 8, No. 2 fibers of No. 1 lint retainer
Clamper 9 is with No. 3 lint retainers 10 to rise less than 10mm/min speed simultaneously.
Decline button 20 and first room, the second room and trivacancy are set, they control No. 1 fiber clamping respectively successively
8, No. 2 lint retainers 9 of device and No. 3 lint retainers 10, them are made to decline with certain speed.The is placed in when declining button 20
During one room, power set-motor 25 drives No. 1 lint retainer 8 to decline according to certain speed by wire, and No. 2 fibers
Clamper 9 will not then move with No. 3 lint retainers 10.When decline button 20 is placed in the second room, power set-motor 25
No. 2 lint retainers 8 are driven to decline according to certain speed by wire, and No. 1 lint retainer 9 and No. 3 lint retainers 10
It will not then move, the like.
Infrared temperature sensor 12 is connected by wire with display screen 15.Heated at constant temperature resistance wire 3 is by control panel
Temperature knob 17 on 14 adjusts heating power, while is detected using infrared temperature sensor 12 by heated at constant temperature resistance wire 3
The temperature of the metal sample-containing dish 4 of heating, the temperature signal of detection is transferred to display screen 15 and shows its temperature.
Temperature detection and Display Technique of the present invention are all routine techniques, be will not be repeated here.
In the present invention, the structure of heated at constant temperature resistance wire 3 is listed in accompanying drawing 2.The heated at constant temperature resistance that the present invention uses
Silk 3 is current market sales of product, and the applied voltage of this heated at constant temperature resistance wire 3 is 220~380V, and power is 500
~1000W.
In the present invention, support 13 is placed above heated at constant temperature resistance wire 3, metal sample-containing dish is rest upon in support 13
4。
Support 12 is made of stainless steel material；The structural representation of support 12 is listed in accompanying drawing 3.
Metal sample-containing dish 4 is used to contain molten asphalt or asphalt mastic, and it is made of stainless steel metal material.
Metal sample-containing dish 4 is equably separated into No.1 pond 4-1, No. two pond 4-2 and No. three pond 4-3, and in metal sample-containing dish 4
There is the lint retainer 9 of lint retainer 8,2 of graduation mark 5,1 to distinguish with No. 3 lint retainers 10 at 2/3rds height
It is corresponding with No. three pond 4-3 with No.1 pond 4-1, No. two pond 4-2 and vertical with the bottom of metal sample-containing dish 4.
The data shown on display screen 15 are transported to printing equipment 21 by print button 19 and printed；Whole experiment dress
Power supply is put to be controlled by device shift knob 16.
The display screen 15 that the present invention uses is current market sales of product, such as joins lcd technology by Ningbo is same
Co., Ltd is with the product of 0.96 pair of Yellow electronic display screen sale of trade name OLED LCDs.
Display screen 15 shows pitch or asphalt mastic temperature, environmental cabinet temperature, preset temperature, loading velocity, each fiber
Every 0.5 second measure stress of clamper and fiber-asphalt grouting film-strength Si experimental results.
In the present invention, the display screen 15 on control panel 14, device shift knob 16, temperature knob 17, rising
Button 18, print button 19, printing equipment 21, decline button 20 and its their connected mode and the method for operation, in the technology
It is usually used or conventional in field.
The power set motor 25 that the present invention uses is that the M5120-402 of Yueqing City day force motor Co., Ltd production is single-phase
Asynchronous motor.
In the present invention, described fiber be for pitch or asphalt mastic processing inorfil or organic fiber, nothing
Machine fiber is selected from inorfil and is selected from inorfil selected from basalt fibre, glass fibre, asbestos fibre；Organic fiber is selected from poly-
Ester fiber, polyacrylonitrile fibre.These fibers are all current market sales of products, such as by Jiangsu Condar husband's new material section
The basalt fibre inorfil product that skill Co., Ltd is sold with trade name basalt fibre；Such as nation's fire proofing wood is moistened by Hebei
The polyacrylonitrile organic fiber product that material company is sold with trade name polyacrylonitrile.
The invention further relates to the application method of measure fiber and pitch or the experimental provision of asphalt mastic adhesion property.
The step of experimental provision application method, is as follows：
A, Preparatory work of experiment
Pitch or asphalt mastic are heated to molten condition in an oven, fiber is clamped in No. 1 fibre respectively vertically downwardly
Tie up on 8, No. 2 lint retainers 9 of clamper and No. 3 lint retainers 10, their lower end is in metal sample-containing dish 4, and
It is vertical with the bottom of metal sample-containing dish 4；
B, fiber-asphalt grouting film is formed
Opening temperature knob 17 heats environmental cabinet 2, and step A molten asphalt or drip are poured into metal sample-containing dish 4
Blue or green rubber cement stands 15~18min, allows pitch or asphalt mastic fully to be acted on fiber to graduation mark 5, formed firm fiber-
Asphalt grouting film；
C, test
Start and rise button 17, by the fiber in pitch or asphalt mastic is immersed to be carried less than 10mm/min speed simultaneously
Rise, corresponding every 0.5 second measure force value is read by display screen 15, fiber-asphalt grouting of 1-3 fibers is calculated by following formula
Film-strength Si：
Fiber-asphalt grouting film-strength Si=stress σi× speed V
In formula：
I=1-3；
Pulling force FiTo record maximum pull average value three times, unit N in experimentation；
The area that area S contacts for fiber with pitch or asphalt mastic, unit mm2；
Diameter D be fiber diameter, unit mm；
Stress σi, unit Pa；
Strength Si, unit Pa*mm/min；
Speed V is that fiber lifts speed, unit mm/min；
The fiber of this fiber-asphalt grouting film-strength S is calculated by following formula：
Fiber-asphalt grouting film-strength S=(No. 1 fiber-asphalt grouting film-strength S1+ No. 2 fibers-asphalt grouting film is strong
Spend S2+ No. 3 fibers-asphalt grouting film-strength S3)/3。
Because the physical and chemical properties of not same fiber are different, so as to which difference may occurs with pitch or asphalt mastic in it
Physical action and chemical action；The physical action and chemical action that may occur under conditions of same fiber different addition quantity
Amount and effect are different.Present invention measure fiber can determine not of the same race with pitch or the experimental provision of asphalt mastic adhesion property
The adhesion of fiber and pitch or asphalt mastic, same fiber under different addition quantity between fiber and modified asphalt or Stability of Modified Asphalt Mortar
Performance.
[beneficial effect]
The beneficial effects of the invention are as follows：
Because this experimental provision takes strain controlling, the drawing between every 0.5 second measure primary fiber and pitch or rubber cement
Power, substantially increases the reliability of data, and this experimental provision is closer to real cohesive force between pitch and fiber.
This experimental provision is to determine the adhesion property between fiber and pitch or asphalt mastic, can evaluate fiber and pitch
And the cementitiousness of asphalt mastic, allow people preferably to go to select fiber to come modified pitch or rubber cement.
Because this experimental provision is relatively simple, therefore required material is less, greatly reduces cost.Data are true and reliable；
Because this experimental provision is relatively simple, operating procedure is less, is tested without professional training and guidance and in fact
It is brief to test the time.
【Brief description of the drawings】
Fig. 1 is present invention measure fiber and pitch or the experimental provision structural representation of asphalt mastic adhesion property；
Fig. 2 is the structural representation of heated at constant temperature resistance wire 3 of the present invention；
Fig. 3 is the structural representation of support 13 of the present invention；
Fig. 4 is the structural representation of tubular fiber clamper 22 of the present invention；
In figure：
1- experiment porch, 2- environmental cabinets, 3- heated at constant temperature resistance wire, 4- metals sample-containing dish, 4-1- No.1s pond, 4-2- bis-
Pond, No. tri- ponds of 4-3-, 5- metal sample-containing dishes graduation mark, 6- fixed supports, 7- crossbeams, 8-1 lint retainers, 9-2 fibers
Clamper, 10-3 lint retainers, 11- fibers, 12- infrared temperature sensors, 13- supports, 14- control panels, 15- are shown
Screen, 16- devices shift knob, 17- temperature knob, 18- rise button, 19- print buttons, 20- and decline button, 21- printings
Device, 22- tubular fibers clamper, 23- fibers clamping pipe, 24- flat head screws, 25 power set-motor, 26- force snesors,
27- controllers.
【Embodiment】
The present invention is will be better understood that by following embodiments.
Embodiment 1：Experimental provision of the present invention and measure fiber-asphalt grouting film-strength
The embodiment of the embodiment is as follows：
Experimental provision of the present invention includes experiment porch 1 and control panel 14, and experiment porch 1 includes environmental cabinet 2, heated at constant temperature
Resistance wire 3, metal sample-containing dish 4, fixed support 6, the clamping of the lint retainer 9,3 of lint retainer 8,2 of crossbeam 7,1 fiber
Device 10, infrared temperature sensor 12 and support 13；Control panel 14 includes display screen 15, device shift knob 16, temperature rotation
Button 17, rise button 18, print button 19, decline button 20, printing equipment 21 and power set-motor 25；
Installation environmental cabinet 2 made of pyroceram plate on experiment porch 1, its glass towards the side of control panel 13
Glass plate can be opened and closed, and the mounting and fixing bracket 6 in environmental cabinet 2, its lower end is fixed on 1 on experiment porch, it upper
They are connected into an entirety by end by crossbeam 7；Heated at constant temperature resistance wire is configured in the bottom of 5 internal environment case of fixed support 2
3, heated at constant temperature resistance wire 3 by temperature knob 17 adjust heating power, while using infrared temperature sensor 12 detect by
The temperature for the metal sample-containing dish 4 that heated at constant temperature resistance wire 3 heats, is transferred to display screen 15 by the temperature signal of detection and shows it
Temperature；
Support 13 is placed above heated at constant temperature resistance wire 3, metal sample-containing dish 4 is rest upon in support 13；Metal contains sample
Ware 4 is equably separated into No.1 pond 4-1, No. two pond 4-2 and No. three pond 4-3；
8, No. 2 lint retainers 9 of No. 1 lint retainer and No. 3 lint retainers 10 are installed on crossbeam 7 to pass with infrared temperature
Sensor 12；Infrared temperature sensor 12 is connected by wire with display screen 15,8, No. 2 lint retainers 9 of No. 1 lint retainer with
No. 3 lint retainers 10 are connected by wire with rising button 18 and declining button 20, and these lint retainers contain sample with metal
The bottom of ware 4 is vertical；
Rise button 18 and control 8, No. 2 lint retainers 9 of No. 1 lint retainer and No. 3 lint retainers 10 with 9.8mm/
Min speed rises simultaneously；Decline button 20 and three rooms are set, they control No. 1 lint retainer 8,2 successively by left-to-right
Lint retainer 9 and No. 3 lint retainers 10, them are made to decline with speed 10mm/min.These lint retainers are by HBM companies
The information that the U9C micro-force sensors 26 of sale gather is shown after being converted by controller 27 in display screen 15；
The data shown on display screen 15 are transported to printing equipment 21 by print button 19 and printed；Whole experiment dress
Power supply is put to be controlled by device shift knob 16.
The experimental provision described using the embodiment detects basalt fibre-asphalt grouting film-strength S as steps described below：
A, Preparatory work of experiment
It will be heated to melting with the pitch of No. 70 A levels sale of trade name by Alpha Jiangyin pitch Co., Ltd in an oven
State is straight by the basalt fibre fiber sold by Jiangsu Condar husband's new material Science and Technology Ltd. with trade name basalt fibre
12 μm, length 60mm of footpath, it is clamped in 7, No. 2 lint retainers 8 of No. 1 lint retainer and No. 3 fiber clamps respectively vertically downwardly
In holder 9, their lower end is set to be in metal sample-containing dish 4, and it is vertical with the bottom of metal sample-containing dish 4；
B, fiber-asphalt grouting film is formed
Opening temperature knob 16 makes environmental cabinet 2 be heated to 125 DEG C of temperature, and the molten of step A is poured into metal sample-containing dish 4
Melt pitch, stand 15min, allow pitch fully to be acted on fiber, form firm fiber-asphalt grouting film；
C, test
Start and rise button 17, the fiber in pitch will be immersed to lift less than 9.8mm/min speed simultaneously, by display screen
14 corresponding every 0.5 second of reading measure stress values are respectively 655MPa, 661MPa and 649MPa.Then, retouched according to this specification
The computational methods stated, fiber-asphalt grouting film-strength S of 1-3 fibers is first calculated by these stress valuesiRespectively
5240MPa*mm/min, 5288MPa*mm/min and 5192MPa*mm/min, then by these film-strengths SiCalculate this fiber
Fiber-asphalt grouting film-strength S be 5240MPa*mm/min.
Embodiment 2：Experimental provision of the present invention and measure fiber-asphalt mastic effect film-strength
The embodiment of the embodiment is identical with the embodiment of embodiment 1, simply limited using Alpha Jiangyin pitch
Company is using the pitch and basalt miberal powder of No. 70 A levels sale of trade name using Ratio of filler bitumen as 0.587 asphalt mastic prepared；Basalt
Fiber stands 18min in molten asphalt rubber cement, starts and rises button 17, by the fiber immersed in pitch with less than 9.8mm/min
Speed lifts simultaneously；
It is respectively 886MPa, 882MPa and 892MPa to read corresponding every 0.5 second measure stress value by display screen 14.So
Afterwards, the computational methods described according to this specification, fiber-asphalt grouting film of 1-3 fibers is first calculated by these stress values
Strength SiRespectively 7088MPa*mm/min, 7056MPa*mm/min and 7136MPa*mm/min, then by these film-strengths SiCalculate
Fiber-asphalt grouting film-strength the S for going out this fiber is 7093.3MPa*mm/min.
Claims (9)
1. a kind of determine fiber and pitch or the experimental provision of asphalt mastic adhesion property, it includes experiment porch (1) and control
Panel (14), it is characterised in that experiment porch (1) include environmental cabinet (2), heated at constant temperature resistance wire (3), metal sample-containing dish (4),
It is fixed support (6), crossbeam (7), No. 1 lint retainer (8), No. 2 lint retainers (9), No. 3 lint retainers (10), infrared
Temperature sensor (12) and support (13)；Control panel (14) includes display screen (15), device shift knob (16), temperature rotation
Button (17), rise button (18), print button (19), decline button (20), printing equipment (21) and power set-motor
(25)；
The installation environment case (2) on experiment porch (1), in environmental cabinet (2) interior mounting and fixing bracket (6), its lower end is fixed on
On experiment porch (1), they are connected into an entirety by its upper end by crossbeam (7)；In fixed support (6) internal environment case
(2) bottom configuration heated at constant temperature resistance wire (3)；Support (13) is placed above heated at constant temperature resistance wire (3), on support (13)
Shelve metal sample-containing dish (4) in face；
No. 1 lint retainer (8), No. 2 lint retainers (9), No. 3 lint retainers (10) and infrared temperature are installed on crossbeam (7)
Spend sensor (12)；Infrared temperature sensor (12) is connected by wire with display screen (15), No. 1 lint retainer (8), No. 2
Lint retainer (9) is connected with No. 3 lint retainers (10) by wire with rising button (18) and declining button (20)；These
Lint retainer is shown after being converted by the information that force snesor (26) gathers by controller (27) in display screen (15)；
The data shown on display screen (15) are transported to printing equipment (21) by print button (19) and printed；Whole experiment
Installation's power source is controlled by device shift knob (16).
2. experimental provision according to claim 1, it is characterised in that environmental cabinet (2) is used made of pyroceram plate,
It can be opened and closed in the glass plate towards control panel (13) side.
3. experimental provision according to claim 2, it is characterised in that heated at constant temperature resistance wire (3) passes through temperature knob
(17) heating power, while the metal heated using infrared temperature sensor (12) detection by heated at constant temperature resistance wire (3) are adjusted
The temperature of sample-containing dish (4), the temperature signal of detection is transferred to display screen (14) and shows its temperature.
4. experimental provision according to claim 2, it is characterised in that No. 1 lint retainer (8) of rising button (18) control,
No. 2 lint retainers (9) are with No. 3 lint retainers (10) to rise less than 10mm/min speed simultaneously.
5. experimental provision according to claim 1, it is characterised in that decline button (20) and the first room, the second room are set
With trivacancy, they control No. 1 lint retainer (8), No. 2 lint retainers (9) and No. 3 lint retainers respectively successively
(10) them, are made to decline with certain speed.
6. experimental provision according to claim 1, it is characterised in that metal sample-containing dish (4) is equably separated into No.1 pond
(4-1), No. two ponds (4-2) and No. three ponds (4-3), and in metal sample-containing dish (4) in its height 2/3 at be provided with graduation mark
(5), No. 1 lint retainer (8), No. 2 lint retainers (9) and No. 3 lint retainers (10) respectively with No.1 pond (4-1), two
Number pond (4-2) is corresponding with No. three ponds (4-3) and vertical with metal sample-containing dish (4) bottom.
7. experimental provision according to claim 1, it is characterised in that display screen (15) show pitch or asphalt mastic temperature,
Every 0.5 second measure stress of environmental cabinet temperature, preset temperature, loading velocity, each lint retainer and fiber-asphalt grouting film are strong
Spend Si experimental results.
8. experimental provision according to claim 1, it is characterised in that described fiber is inorfil or organic fiber, nothing
Machine fiber is selected from basalt fibre, glass fibre or asbestos fibre；Organic fiber is selected from polyester fiber or polyacrylonitrile fibre.
9. the application method of experimental provision according to claim 1, it is characterised in that the application method step is as follows：
A, Preparatory work of experiment
Pitch or asphalt mastic are heated to molten condition in an oven, fiber is clamped in No. 1 fiber clamp respectively vertically downwardly
Holder (8), No. 2 lint retainers (9) are with No. 3 lint retainers (10), making their lower end be in metal sample-containing dish (4)
In, and it is vertical with metal sample-containing dish (4) bottom；
B, fiber-asphalt grouting film is formed
Opening temperature knob (17) make environmental cabinet (2) heat, poured into metal sample-containing dish (4) step A molten asphalt or
Asphalt mastic stands 15~18min, allows pitch or asphalt mastic fully to be acted on fiber, formed firm fine to graduation mark (5)
Dimension-asphalt grouting film；
C, test
Start and rise button (18), the fiber in pitch or asphalt mastic will be immersed to lift less than 10mm/min speed simultaneously,
Corresponding every 0.5 second measure stress value is read by display screen (15), fiber-pitch that 1-3 fibers are calculated by following formula is made
With film-strength Si：
Fiber-asphalt grouting film-strength Si=stress σi× speed V
In formula：
I=1-3；
Pulling force FiTo record maximum pull average value three times, unit N in experimentation；
The area that area S contacts for fiber with pitch or asphalt mastic, unit mm2；
Diameter D be fiber diameter, unit mm；
Stress σi, unit Pa；
Strength Si, unit Pa*mm/min；
Speed V is that fiber lifts speed, unit mm/min；The fiber of this fiber-asphalt grouting film-strength S is by following formula meters
Obtain：
Fiber-asphalt grouting film-strength S=(No. 1 fiber-asphalt grouting film-strength S1+ No. 2 fibers-asphalt grouting film-strength S2+3
Number fiber-asphalt grouting film-strength S3)/3。
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| CN110596111A (en) * | 2019-10-10 | 2019-12-20 | 南京林业大学 | Device and method for measuring influence of local heating on adhesion |
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