CN109540706A - A kind of the impact resistance test device and test method of pavement material - Google Patents
A kind of the impact resistance test device and test method of pavement material Download PDFInfo
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- CN109540706A CN109540706A CN201811626310.9A CN201811626310A CN109540706A CN 109540706 A CN109540706 A CN 109540706A CN 201811626310 A CN201811626310 A CN 201811626310A CN 109540706 A CN109540706 A CN 109540706A
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- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 title claims abstract description 51
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 230000007613 environmental effect Effects 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 5
- 230000007115 recruitment Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000012769 display material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- -1 Close test case 1 Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003012 network analysis Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0035—Spring
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the impact resistance test device and test method of a kind of pavement material, test device includes close test case, substrate, beater mechanism, loading platform and environmental simulation component etc..The environmental simulations component such as liquid storage container, ultraviolet lamp is provided with outside close test case.Beater mechanism is mounted on the right side of substrate, and loading platform is mounted on the left of substrate close to beater mechanism.A variety of recruitment conditions of not going the same way such as strong acid and strong base, rainfall, high temperature, ultraviolet ageing can be arranged in the present invention, effectively simulation complex environment, to must quick and precisely test impact resistance of the pavement material under different impact parameters.
Description
Technical field
The invention belongs to road engineerings to test instrument field, be specifically related to a kind of impact resistance test of pavement material
Device and test method.
Background technique
Pavement material needs to possess good pavement performance, when testing pavement performance, not only want network analysis its
Every performance under short-term load index should more pay close attention to its long-term behaviour index.Impact resistance is relatively attached most importance in pavement material long-term behaviour
The technical indicator wanted, there are mainly two types of the methods tested at this stage it, and one is method for qualitative analysis, by certain mass
Steel ball free falling bodies to detected materials test specimen on, observe surface of test piece level of breakage and judge its impact resistance superiority and inferiority；Separately
One is quantitative analysis methods, rely primarily on drop hammer type or Charpy instrument, obtain certain impact strength numerical value, are come with this
Judgement material impact resistance superiority and inferiority.It can be seen from the above, method for qualitative analysis operation it is relatively simple, but can not quantized values,
More difficult accurate judgement material impact resistance；Quantitative analysis method data are more accurate, but instrumentation is complex, and two kinds
Method has certain limitation.
In conclusion pavement material impact resistance test device and evaluation method are primarily present following deficiency at present: when
When pavement material is in complex environment, endurance quality is influenced by various working (i.e. complex conditions), above-mentioned test method
It is the endurance quality for being only capable of testing single operating condition, is unable to test pavement material in strong acid and strong base, rainfall, high temperature, ultraviolet ageing
Etc. impact resistance under different tests environment.In addition, drop hammer type or Charpy instrument can only be according to fixed angles, fixed hammer
Head quality impacts material, is unable to get the impact resistance of material under different angle of attack, dynamics, is unfavorable for being advised
The test data and conclusion of rule property.Therefore, the impact resistance test device and test method for needing a kind of pavement material, can
Complex environment is simulated, impact resistance of the pavement material under different impact parameters is tested.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of impact resistance of pavement material
Test device and test method can simulate the test data of different angle of attack, to must quick and precisely test pavement material
Impact resistance under different impact parameters.
In order to achieve the above objectives, the invention adopts the following technical scheme: a kind of impact resistance test of pavement material
Device and test method, including substrate are provided with beater mechanism and loading platform on substrate, and beater mechanism includes being obliquely installed
Impact tracks, impact tracks both ends are supported by the first support frame being arranged in parallel and the second support frame respectively, wherein the second support
It is provided with multiple adjustment holes on frame, fixed bracket is cased with outside the second support frame, the second support frame and fixed bracket pass through bolt
It is fixed with adjustment hole；Fixed baffle, moving stop and plate are disposed on impact tracks from top to bottom；Fixed baffle is fixed
On impact tracks, fixed baffle is connect by spring with moving stop, for placing alluvium between plate and moving stop,
Multiple grafting grooves are provided on impact tracks, plate is by grafting groove and is plugged on impact tracks；Loading platform includes
Loading plate, loading plate are located at impact tracks lower end outside, articles holding table are provided on loading plate, and articles holding table bottom is equipped with several biographies
Sensor, several sensors are temperature, pressure integrative sensor.
Further, the angle measurement of the angle for measuring impact tracks and horizontal plane is provided on the outside of impact tracks
Ruler.
Further, the two sides of impact tracks, which are fixed with back, forces contracting track, and moving stop forces contracting track with time and slides
Connection.
Further, it returns to force and indicates scale on the outside of contracting track.
It further, further include close test case, substrate, beater mechanism and loading platform are arranged at close test case
In, liquid storage container is provided with outside close test case, liquid storage container is divided into including several mutually disconnected sub- containers, liquid storage container
It is connect by conduit with spray head, spray head is arranged in close test case.
Further, it is provided with case lid on close test case, is provided with plastic gloves on the inside of case lid.
Further, close test box top is provided with ultraviolet lamp, and ultraviolet lamp is located at right above articles holding table.
Further, impact strength display is provided on loading plate, impact strength display is electrically connected with sensor.
Further, loading plate lower part is provided with heating copper mesh, and heating copper mesh is opened with temperature indicator and power supply
Powered-down connection.
Further, substrate is fixed with baffle far from the side of fixed baffle, and the junction for connecting baffle and substrate is arranged
It is fluted.
A kind of impact resistance test method of pavement material, comprising the following steps:
Material test specimen to be measured is placed in articles holding table, then articles holding table is installed on substrate by step 1；According to test
Need, adjust environmental simulation component, be arranged single or complex conditions, environmental simulation component include ultraviolet lamp, liquid storage container and
Heat copper mesh；
Then step 2, the height for adjusting the second support frame will until the angle of attack for being adjusted to need by impact tracks
Second support frame is fixed on fixed bracket；The alluvium for selecting certain mass controls its impact dynamics；Alluvium is placed in
Between plate and moving stop, plate is inserted into inserting on impact tracks by compressed spring, the impact velocity until being compressed to needs
It connects in groove；
Step 3 takes out plate, and alluvium is pounded along impact tracks to detected materials test specimen, records detected materials and is advising
Impact strength under fixed impact dynamics, angle, speed.
Compared with prior art, the present invention at least has technical effect beneficial below: can be by adjusting impact tracks
Highly, amount of substance and spring-compressed degree are impacted to control angle of attack, dynamics and speed respectively, obtain a series of accurate, tools
Regular test data with as a result, providing new approaches for material impact-resistant performance evaluation.Qualitative and quantitative point can be achieved
Whole effects of analysis method.
Further, can by adjust acid in liquid storage container, the fountain height of aqueous slkali and water, ultraviolet lamp degree of illumination,
It heats copper mesh heating and carrys out the different tests environment such as strong acid and strong base, rainfall, high temperature, ultraviolet ageing locating for simulated roadway material,
The endurance quality of the every single operating condition of test and complex conditions.
Further, the angle measurement of the angle for measuring impact tracks and horizontal plane is provided on the outside of impact tracks
Ruler can easily measure the angle of impact tracks and horizontal plane.
Further, the two sides of impact tracks, which are fixed with back, forces contracting track, and moving stop forces contracting track with time and slides
The motion profile for forcing contracting track for specification moving stop is returned in connection.
Further, impact strength display is provided on loading plate, impact strength display is electrically connected with sensor, can
Directly the data measured are shown.
Further, loading plate lower part is provided with heating copper mesh, and heating copper mesh is opened with temperature indicator and power supply
Powered-down connection can be powered on by power switch, copper mesh be heated, so that the material warms on articles holding table.Temperature is aobvious
Show device temperature-adjustable, and the real time temperature of display material.
Further, substrate is fixed with baffle far from the side of fixed baffle, and the junction for connecting baffle and substrate is arranged
Fluted, alluvium rolls after overtesting material by baffle, falls into the groove on substrate, no longer rebounds.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is beater mechanism schematic diagram of the invention；
Fig. 3 is the second support frame schematic diagram of the invention；
Fig. 4 is loading platform schematic diagram of the invention；
Fig. 5 is heating copper mesh schematic diagram of the invention；
Each label indicates in figure are as follows: 1- close test case, 2- liquid storage container, 3- ultraviolet lamp, 4- substrate, 5- beater mechanism,
6- loading platform, 7- impact tracks, the first support frame of 8-, the second support frame of 9-, 10- angle measuring scale, 11- return power compressed tracks
Road, 12- fixed baffle, 13- plate, 14- spring, 15- moving stop, 16- alluvium, 17- adjustment hole, the fixed bracket of 18-,
19- bolt, 20- groove, 21- articles holding table, 22- sensor, 23- impact strength display, 24- heat copper mesh, and 25- temperature is aobvious
Show device, 26- conduit, 27- spray head, 28- knob, 29- power switch, 30- case mouth, 31- case lid, 32- plastic gloves, 33- valve,
34- baffle, 35- storage rod, 61- loading plate.
Specific embodiment
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, it is all according to the technical essence of the invention to made by following embodiment it is any it is simple modification, change and equivalent structure transformation,
It is still within the scope of the technical scheme of the invention.
Embodiment
In compliance with the above technical solution, as shown in Figure 1 to Figure 3, the impact resistance test device of a kind of pavement material, including
Close test case 1, substrate 4, beater mechanism 5, loading platform 6 and environmental simulation component etc..Storage is provided with outside close test case 1
The environmental simulations components such as liquid container 2, ultraviolet lamp 3.Beater mechanism 5 is mounted on the right side of substrate 4, and loading platform 6 is close to punching
It hits mechanism 5 and is mounted on 4 left side of substrate.
As shown in Figure 1, close test case 1 is the cuboid transparent cabinet of organic glass production, top is equipped with liquid storage appearance
Device 2, conduit 26, spray head 27, ultraviolet lamp 3 and knob 28, front are equipped with power switch 29, the case mouth that right side setting can be closed
30, it is provided with case lid 31 at case mouth 30, has two plastic gloves 32 on the inside of case lid 31, facilitates and tested.
Liquid storage container 2 divides for four parts, is respectively used to hold acid, alkali, water and other solvents.26 1, conduit are divided into four
Sub- conduit, four root conduits are connected with different solvents part in liquid storage container 2 respectively, and are mounted on valve on four root conduits
33,26 other end of conduit is connected with spray head 27, and the water outlet of spray head 27 is located in close test case 1.
Ultraviolet lamp 3 is arranged three altogether, and parallel arrangement is located at 21 top of articles holding table, for irradiating on the inside of 31 roof of case lid
Material test specimen brings it about ultraviolet ageing.Ultraviolet lamp 3 is the ultraviolet lamp of gear-adjustable, and concrete model is Philips brand
TUV15W controls gear by knob 28, and knob 28 is arranged on the outside of 31 roof of case lid.
Baffle 34 is installed, and the setting of the junction of connection baffle 34 and substrate 4 is fluted on the left of substrate 4, it is therefore an objective to be
Alluvium 16 was stopped after rolling material by baffle 34, falls into groove, no longer rebounds.It is equipped on the right side of substrate 4 for putting
Set the storage rod 35 of alluvium 16.Loading platform 6 and beater mechanism 5 are provided on substrate 4,6 two sides of loading platform are designed as sawing
Dentation, for and 4 grafting of substrate, conducive to being fixed on substrate 4, loading platform 6 is located on the left of beater mechanism 5.
As indicated with 2, beater mechanism 5 include impact tracks 7, the first support frame 8, the second support frame 9, angle measuring scale 10,
It returns and forces contracting track 11, fixed baffle 12, plate 13, spring 14 and moving stop 15 and alluvium 16.Impact tracks 7 are by parallel
The first support frame 8 and the second support frame 9 of arrangement are supported, and the first support frame 8 is the support frame of regular length, the second support
Frame 9 is the support frame of height-adjustable.The height of second support frame 9 is higher than the height of the first support frame 8；Under second support frame 9
Portion is provided with multiple horizontally disposed adjustment holes 17, and fixed bracket 18 is cased with outside the second support frame 9, by bolt 19 and adjusts
Second support frame 9 and fixed bracket 18 are fixed up by hole 17, and adjustment bolt 19 is inserted into the position of adjustment hole 17 i.e. adjustable the
The height of two support frames 9, so as to adjust impact tracks 7 and horizontal angle, i.e. angle of attack.Angle measuring scale 10 is fixed on
On first support frame 8, it is convenient for measuring impact tracks 7 and horizontal angle.It returns and forces before contracting track 11 is fixed on impact tracks 7
Two sides afterwards, fixed baffle 12 is fixed on 7 right end of impact tracks, irremovable.Multiple grafting grooves are provided on impact tracks 7
20, plate 13 is fixed by being inserted into grafting groove 20 with impact tracks 7.Moving stop 15, which is installed on back, forces contracting track 11
On, and be connected with fixed baffle 12 by spring 14, can return force the compression for passing through spring 14 on contracting track 11 with spring back into
Row movement.It returns and forces 11 side of contracting track and indicate scale, facilitate record 14 reduction length of spring, that is, impact dynamics.Alluvium 16
For hollow cylinder, between plate 13 and moving stop 15.
As shown in figure 4, loading platform 6 includes loading plate 61, articles holding table 21, sensor 22, impact strength display 23, adds
Hot copper mesh 24 and temperature indicator 25.Strip bulge is provided at left and right sides of loading plate 61, the longitudinal section of strip bulge is three
It is angular, articles holding table 21 is provided in the middle part of loading plate 61,61 bottom of loading plate is equipped with sensor 22.Sensor 22 is temperature, pressure
Integrative sensor, concrete model PT124B-121/121T are installed on glove for the impact strength and temperature of test material
21 bottom center of platform and surrounding position, totally five.On loading plate 61,21 front and rear sides of articles holding table are respectively arranged with temperature indicator
25 and impact strength display 23, impact strength display 23 be connected with sensor 22 by cable, for rushing for display material
Hit intensity numerical value.Heating copper mesh 24 is installed on 6 lower part of loading platform, and specific location is 21 lower section of articles holding table, by cable with
Temperature indicator 25, power switch 29 are connected.It can be powered on by power switch 29, heat copper mesh 24, so that
Material warms on articles holding table 21.25 temperature-adjustable of temperature indicator, and the real time temperature of display material.
Referring to Fig. 5, heating copper mesh 24 includes several several hot copper wires being set side by side.
A kind of the impact resistance test device and test method of pavement material, comprising the following steps:
Step 1, material test specimen to be measured is placed in articles holding table 21, then articles holding table 21 is installed on substrate 4.According to
Test needs, and adjusts environmental simulation component, and single or complex conditions are arranged, and simulates complex environment, carries out endurance quality test.
Specific operating condition set-up mode is as follows:
1. holding acid, alkali, water and other solvents in liquid storage container 2 respectively, the duct valve of connection water container is first opened
33, cleaning pipe 26, guarantee test clean environment, then the valve 33 of sub- conduit 261 is opened or closed respectively, solution passes through conduit
Sub- conduit 261 and 26 flows to spray head 27, is sprayed on material test specimen, to simulate strong acid, highly basic, rainfall environment.Wherein, it is worth
It is noted that being required to wash with water conduit in advance when simulating varying environment, avoid solution contaminated.
2. turning on the power switch 29,24 energization heat production of copper mesh is heated, material test specimen local environment temperature increases, and passes through temperature
It spends display 25 and adjusts temperature, simulate hot environment.
3. opening ultraviolet lamp 3, adjusting knob 28 controls 3 quantity of ultraviolet lamp and exposure intensity, simulates ultraviolet ageing environment.
Step 2, the angle shown on one side viewing angle measuring scale 10 adjusts the height of the second support frame 9 on one side, until
It is adjusted to the angle of attack needed, second support frame 9 is fixed on fixed bracket 18 using bolt 19.Select certain mass
Alluvium 16 controls its impact dynamics.Alluvium 16 is removed from storage rod 35, be placed in plate 13 and moving stop 15 it
Between, the scale for forcing and showing on contracting track 11, one side compressed spring 14, the impact speed until being compressed to needs are observed back on one side
Plate 13 is inserted into the grafting groove 20 on impact tracks 7 by degree.
Step 3, plate 13 is extracted, alluvium 16 is pounded along impact tracks 7 to detected materials test specimen, at this point, impact is strong
There is accurate data on degree display 23, is impact strength of the detected materials under defined impact dynamics, angle, speed, including
Centric(al) impact intensity and edge impact totally five intensity.After the completion of test, alluvium 16 is fallen into the groove of substrate 4, anti-non-return
Bullet.
Claims (10)
1. a kind of impact resistance test device of pavement material, which is characterized in that including substrate (4), substrate is provided on (4)
Beater mechanism (5) and loading platform (6)；
Beater mechanism (5) includes the impact tracks (7) being obliquely installed, impact tracks (7) both ends respectively by be arranged in parallel first
Support frame (8) and the second support frame (9) support, wherein be provided on the second support frame (9) multiple adjustment holes (17), second
It is cased with fixed bracket (18) outside support (9), the second support frame (9) and fixed bracket (18) pass through bolt (19) and adjustment hole
(17) fixed；Fixed baffle (12), moving stop (15) and plate (13) are disposed on impact tracks (7) from top to bottom；
Fixed baffle (12) is fixed on impact tracks (7), and fixed baffle (12) is connect by spring (14) with moving stop (15), is inserted
For placing alluvium (16) between plate (13) and moving stop (15), multiple grafting grooves are provided on impact tracks (7)
(20), plate (13) by grafting groove (20) and is plugged on impact tracks (7)；
Loading platform (6) includes loading plate (61), and loading plate (61) is located at impact tracks (7) lower end outside, on loading plate (61)
It is provided with articles holding table (21), articles holding table (21) bottom is equipped with several sensors (22), and several sensors (22) are temperature, pressure
Integrative sensor.
2. a kind of impact resistance test device of pavement material according to claim 1, which is characterized in that impact tracks
(7) outside is provided with the angle measuring scale (10) of the angle for measuring impact tracks (7) and horizontal plane.
3. a kind of impact resistance test device of pavement material according to claim 1, which is characterized in that impact tracks
(7) two sides, which are fixed with back, to be forced contracting track (11), and moving stop (15) forces contracting track (11) with time and is slidably connected.
4. a kind of impact resistance test device of pavement material according to claim 3, which is characterized in that return and force contracting
Scale is indicated on the outside of track (11).
5. a kind of impact resistance test device of pavement material according to claim 1, which is characterized in that further include close
It closes chamber (1), substrate (4), beater mechanism (5) and loading platform (6) are arranged in close test case (1), close test
It is provided with liquid storage container (2) outside case (1), liquid storage container (2) is divided into including several mutually disconnected sub- containers, liquid storage container
(2) it is connect by conduit (26) with spray head (27), spray head (27) is arranged in close test case (1).
6. a kind of impact resistance test device of pavement material according to claim 5, which is characterized in that close test
It is provided with ultraviolet lamp (3) at the top of case (1), ultraviolet lamp (3) is located at right above articles holding table (21).
7. a kind of impact resistance test device of pavement material according to claim 1, which is characterized in that loading plate
(61) it is provided on impact strength display (23), impact strength display (23) is electrically connected with sensor (22).
8. a kind of impact resistance test device of pavement material according to claim 1, which is characterized in that loading plate
(61) lower part is provided with heating copper mesh (24), heating copper mesh (24) and temperature indicator (25) and power switch (29) electricity
Connection.
9. a kind of impact resistance test device of pavement material according to claim 1, which is characterized in that substrate (4)
Side far from fixed baffle (12) is fixed with baffle (34), and connection baffle (34) and the junction setting of substrate (4) are fluted.
10. a kind of test method of the impact resistance test device based on pavement material described in claim 1, feature exist
In, comprising the following steps:
Material test specimen to be measured is placed in articles holding table (21), then articles holding table (21) is installed on substrate (4) by step 1；Root
It is needed according to test, adjusts environmental simulation component, single or complex conditions are set, environmental simulation component includes ultraviolet lamp (3), storage
Liquid container (2) and heating copper mesh (24)；
Step 2, the height for adjusting the second support frame (9), until the angle of attack for being adjusted to need by impact tracks (7), then
Second support frame (9) is fixed on fixed bracket (18)；Alluvium (16) are selected, alluvium (16) is placed in plate (13)
Between moving stop (15), plate (13) are inserted into impact rail by compressed spring (14), the impact velocity until being compressed to needs
In grafting groove (20) on road (7)；
Step 3 extracts plate (13), and alluvium (16) is pounded to detected materials test specimen along impact tracks (7), recorded wait measure and monitor the growth of standing timber
Expect the impact strength under defined impact dynamics, angle, speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626310.9A CN109540706B (en) | 2018-12-28 | 2018-12-28 | Impact resistance testing device and testing method for road material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626310.9A CN109540706B (en) | 2018-12-28 | 2018-12-28 | Impact resistance testing device and testing method for road material |
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| Publication Number | Publication Date |
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| CN109540706A true CN109540706A (en) | 2019-03-29 |
| CN109540706B CN109540706B (en) | 2023-10-31 |
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| CN201811626310.9A Active CN109540706B (en) | 2018-12-28 | 2018-12-28 | Impact resistance testing device and testing method for road material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588462A (en) * | 2021-08-23 | 2021-11-02 | 中国建材检验认证集团股份有限公司 | Horizontal impact testing machine and testing method for glass impact resistance |
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