CN206876505U - A kind of universal testing machine bridge deck water-proof tack coat material shear strength test device - Google Patents
A kind of universal testing machine bridge deck water-proof tack coat material shear strength test device Download PDFInfo
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- CN206876505U CN206876505U CN201720551308.4U CN201720551308U CN206876505U CN 206876505 U CN206876505 U CN 206876505U CN 201720551308 U CN201720551308 U CN 201720551308U CN 206876505 U CN206876505 U CN 206876505U
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- testing machine
- universal testing
- tack coat
- water
- bridge deck
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Abstract
The utility model discloses a kind of universal testing machine bridge deck water-proof tack coat material shear strength test device, including temperature control equipment and grip device, the temperature control equipment includes adding thermal resistance, power supply, insulation material, temperature sensor and temperature display devices, the grip device includes upper supporting plate, lower carrier plate, upper fixture, lower clamp, floorings, asphalt mixture surfacing and water-proof tack coat, it can be placed directly within forcing press or universal testing machine on push-down head, the normal pressure of forcing press or universal testing machine is converted into shearing force, succinctly, convenient test different temperatures, the shearing strength of bridge deck water-proof tack coat material under different shear temperatures, without special shearing test equipment, test efficiency can be improved, save experiment funds.Experimental rig simple structure, easy to operate, applicability in the utility model and practical, are easy to testing crew to grasp, use.It can mat formation at bridge testing scene and bridge and promote the use of in laboratory.
Description
Technical field
It the utility model is related to the testing equipment or Instrument technology field of bridge deck pavement material, specially a kind of universal test
Machine bridge deck water-proof tack coat material shear strength test device.
Background technology
Since 21st century, with developing rapidly for China's economy, the transportation day based on highway construction
Crescent is different.Along with a large amount of constructions of high-grade highway, increasing bridge is built to and come into operation.Bridge is the network of communication lines
The important pivot of network, carries heavy traffic task, the smoothness that the destruction at any position can all block the traffic.
Bridge deck water-proof tack coat between floorings and bridge deck pavement, its for deck paving performance with it is resistance to
Long property plays conclusive effect.Water is to cause one of most direct and most important reason of bridge deck damage, if do not had
Excellent water-proof tack coat, rainwater will be immersed among cement concrete from asphalt mixture surfacing space, bridge floor plank split, reduce water
The intensity of cement concrete bridge floor, shorten the service life of bridge structure.
It is weaker that if the bridge deck water-proof tack coat and the bridge deck pavement and floorings shearing strength at intersection that set cut ability, cohesive force
Deficiency, then the globality of bridge deck pavement be damaged, relative displacement is also easy to produce on direction of traffic failure by shear occurs, generation pushes away
Move, gather around the infringement such as bag, as the severe impact for the rear wheel that is open to traffic and the effect of load also easily make bridge deck pavement loose, stripping occur
The infringement such as fall.Especially, with the increase of the volume of traffic and heavy vehicle, being destroyed under automobile heavy-load overload condition can be even more serious.Very
Extremely, in Surfacing Construction, truck, road roller etc. are possible to walk water-proof tack coat adhesive tape, consequently, it is possible to water-proof binding
Layer does not have due effect, and water penetrates into from surface layer make it that its anti-horizontal shear ability is weaker, and adhesive property is worse, is formed a kind of
Vicious circle state.
At present, each department are without the inspection criterion and relevant criterion of perfect each water-proof tack coat shearing strength of bridge floor；
Selection to water-proof binding layer material relies primarily on the experience of engineer and the recommendation of producer judges, and lacks scientific and is
System property, the selection for not yet forming the water-proof bond material for bridge deck pavement of whole set of system and the shearing resistance for evaluating water-proof bond material for bridge deck pavement are strong
Research technique is spent, causes waterproof bridge floor material market confusion, quality is uneven, and a large amount of low-quality goods enter waterproof bridge floor material
Market, bury hidden dangers in project.
Utility model content
The purpose of this utility model is to provide a kind of universal testing machine bridge deck water-proof tack coat material shearing strength examination
Experiment device, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of universal testing machine is glued with bridge deck water-proof
Layer material shear strength test device, including temperature control equipment and grip device are tied, the temperature control equipment includes heating
Resistance, power supply, insulation material, temperature sensor and temperature display devices, the grip device include upper supporting plate, lower carrier plate, on
Fixture, lower clamp, floorings, asphalt mixture surfacing and water-proof tack coat；
The upper supporting plate is connected with the both ends of lower carrier plate by insulation material, and the inner side of the insulation material offers
Bar-shaped trough, and the both ends of bar-shaped trough are equipped with adding thermal resistance, are respectively equipped with above the lower section of the upper supporting plate and lower carrier plate
Fixture and lower clamp, and floorings are provided between upper fixture and lower clamp, the floorings pass through anti-close to the side of upper fixture
Water tack coat is connected with asphalt mixture surfacing, and the side of asphalt mixture surfacing is provided with temperature sensor, and the temperature sensor is electrical
Connect temperature display devices.
Preferably, the grip device can be placed directly within forcing press or universal testing machine on push-down head, by forcing press
Or the normal pressure of universal testing machine is converted into shearing force.
Preferably, the inclination angle of the angle of the upper fixture and lower clamp is 20 °~65 °.
Preferably, the load loading velocity of the forcing press of the grip device or universal testing machine is 40~50mm/min,
And the scope of test temperature is -20 DEG C~50 DEG C.
Preferably, the shear strength calculation formula for the water-proof bond material that the grip device and temperature control equipment measure
It is as follows：
In formula：
τ --- the shearing strength of water-proof binding layer material, 104Pa；
P --- forcing press or universal testing machine imposed load, N；
G --- upper supporting plate, upper fixture and the total force of attachment insulation foam material and adding thermal resistance, N；
α --- test specimen stress surface and the angle in load action direction, rad；
S --- test specimen is by the section of shear, cm2。
Compared with prior art, the beneficial effects of the utility model are：Universal testing machine bridge deck water-proof tack coat material
Expect shear strength test device, can be placed directly within forcing press or universal testing machine on push-down head, by forcing press or omnipotent examination
The normal pressure for testing machine is converted into shearing force, and bridge deck water-proof that is succinct, easily testing under different temperatures, different shear temperatures bonds
The shearing strength of layer material, without special shearing test equipment, test efficiency can be improved, saves experiment funds.This practicality is new
Experimental rig simple structure, easy to operate, applicability in type and practical, are easy to testing crew to grasp, use.Can be in bridge
Beam test scene and bridge, which are mated formation, to be promoted the use of in laboratory.
Brief description of the drawings
Fig. 1 is bridge deck water-proof tack coat material shearing strength grip device and the part of universal testing machine of the present utility model
Temperature control equipment element schematic；
Fig. 2 is the entirety of the bridge deck water-proof tack coat material shear strength test device of universal testing machine of the present utility model
Schematic diagram.
In figure：1 upper supporting plate, 2 insulation materials, 3 upper fixtures, 4 bridge deck pavements, 5 bridge deck water-proof tack coats, 6 floorings,
7 lower clamps, 8 lower plates, 9 adding thermal resistances, 10 temperature sensors, 11 grip devices, 12 temperature display devices, 13 power supplys, 14 temperature
Spend control device.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of universal testing machine bridge deck water-proof tack coat
Material shear strength test device, including temperature control equipment 14 and grip device 11, the temperature control equipment 14 include adding
Thermal resistance 9, power supply 13, insulation material 2, temperature sensor 10 and temperature display devices 12, the grip device 11 include upper branch
Plate 1, lower carrier plate 8, upper fixture 3, lower clamp 7, floorings 6, asphalt mixture surfacing 4 and water-proof tack coat 5；
The both ends of the upper supporting plate 1 and lower carrier plate 8 are connected by insulation material 2, and the inner side of the insulation material 2 is opened
Both ends provided with bar-shaped trough, and bar-shaped trough are equipped with adding thermal resistance 9, the lower section of the upper supporting plate 1 and the top difference of lower carrier plate 8
Provided with upper fixture 3 and lower clamp 7, and floorings 6 are provided between upper fixture 3 and lower clamp 7, the floorings 6 are close to upper fixture 3
Side be connected by water-proof tack coat 5 with asphalt mixture surfacing 4, and the side of asphalt mixture surfacing 4 is provided with temperature sensor 10, institute
State temperature sensor 10 and be electrically connected with temperature display devices 12.
The grip device 11 can be placed directly within forcing press or universal testing machine on push-down head, by forcing press or omnipotent
The normal pressure of testing machine is converted into shearing force.
The inclination angle of the angle of the upper fixture 3 and lower clamp 7 is 20 °~65 °.
The forcing press of the grip device 11 or the load loading velocity of universal testing machine are 40~50mm/min, and are tested
The scope of temperature is -20 DEG C~50 DEG C.
The shear strength calculation formula for the water-proof bond material that the grip device 11 and temperature control equipment 14 measure is such as
Under：
In formula：
τ --- the shearing strength of water-proof binding layer material, 104Pa；
P --- forcing press or universal testing machine imposed load, N；
G --- upper supporting plate, upper fixture and the total force of attachment insulation foam material and adding thermal resistance, N；
α --- test specimen stress surface and the angle in load action direction, rad；
S --- test specimen is by the section of shear, cm2。
The present apparatus can be placed directly within forcing press or universal testing machine on push-down head, by forcing press or universal testing machine
Normal pressure is converted into shearing force, bridge deck water-proof tack coat material that is succinct, easily testing under different temperatures, different shear temperatures
Shearing strength, without special shearing test equipment, test efficiency can be improved, save experiment funds.In the utility model
Experimental rig simple structure, easy to operate, applicability and practical, it is easy to testing crew to grasp, use.Can be in bridge testing
Scene and bridge, which are mated formation, to be promoted the use of in laboratory.
Exemplified by below using the SBS modified emulsifying asphalts that highway cement concrete-bridge is commonly used as bridge deck water-proof tack coat,
Use step to the device is described further.
Specific implementation step is as follows：
(1) the C40 cement concrete slabs that length is 30cm × 30cm × 5cm are molded, are waited after its initial set in its upper table
Face mould intends the actual texture structure of bridge floor plate surface and carries out wharf's pavement quality (it is worth noting that, being carried out in concrete surface at plucking
During reason, it is desirable to plucking degree uniformity, should not be along direction of traffic plucking, otherwise, its shearing strength is relatively low, vehicle
Traveling easily causes bridge floor failure by shear.After cement concrete slab maintenance terminates, then concrete sample surface laitance is removed, with beating
Grinding machine is polished it, cleans surface floating dust, then is dried, to simulate cement concrete floorings；
(2) SBS modified emulsifying asphalt water-proof binding layer materials are brushed by construction requirement program；
(3) (paid attention to using the thick AC-13 asphalt concrete pavement layers of rut edge runner shaping 5mm on rut profiled sheeting
With rolling instrument when being molded bituminous concrete on water-proof tack coat, the pit for rolling direction and must be perpendicular to plucking of rolling instrument)；
(4) place to be stripped after 48h and be cut into 10cm × 10cm × 5cm test block with cutting machine again and be used for shearing test,
Every group of three progress parallel tests.
(5) certain longitudinal slope is generally there are in view of bridge floor, and mountain area deck profile grade is larger, therefore, the angle of shear may be
Change between 25 °~65 °.In order to reflect that different shearing inclinations influence on tack coat shear resistance, make inclination angle be respectively 25 °,
30 °, 35 °, 40 °, 50 °, 55 °, 60 ° and 65 ° of fixture.
(6) under the conditions of selecting -20 DEG C, -10 DEG C, 0 DEG C, 10 DEG C, 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, shearing test is carried out, with
Simulate stressing conditions of the bridge deck water-proof tack coat in whole temperature range.
(7) overall test specimen is placed in the utility model device, opens temperature control equipment 14 and switch, make adding thermal resistance 9
Conduction, while temperature sensor 10 is linked into temperature display devices, until temperature display devices displays temperature is above-mentioned experiment temperature
Degree；The temperature control equipment 14 is E5EZ-Q3 models, and the adding thermal resistance 9 is TR/02035 models, the temperature sensor
10 be 602F-3500F models.
(8) start forcing press or universal testing machine, the load loading velocity of universal press is set to 50mm/min, carry out
Test, until failure by shear, and record data occur for test specimen.While there has been shown and described that embodiment of the present utility model,
For the ordinary skill in the art, it is possible to understand that can in the case where not departing from principle of the present utility model and spirit
So that these embodiments are carried out with a variety of change, modification, replacement and modification, the scope of the utility model by appended claims and its
Equivalent limits.
Claims (5)
1. a kind of universal testing machine bridge deck water-proof tack coat material shear strength test device, including temperature control equipment (14)
With grip device (11), it is characterised in that：The temperature control equipment (14) includes adding thermal resistance (9), power supply (13), thermal insulating material
Expect (2), temperature sensor (10) and temperature display devices (12), the grip device (11) includes upper supporting plate (1), lower carrier plate
(8), upper fixture (3), lower clamp (7), floorings (6), asphalt mixture surfacing (4) and water-proof tack coat (5)；
The both ends of the upper supporting plate (1) and lower carrier plate (8) are connected by insulation material (2), the inner side of the insulation material (2)
Bar-shaped trough is offered, and the both ends of bar-shaped trough are equipped with adding thermal resistance (9), the lower section of the upper supporting plate (1) and lower carrier plate (8)
Top be respectively equipped with upper fixture (3) and lower clamp (7), and floorings (6), institute are provided between upper fixture (3) and lower clamp (7)
Floorings (6) are stated to be connected with asphalt mixture surfacing (4) by water-proof tack coat (5) close to the side of upper fixture (3), and asphalt pavement
The side of layer (4) is provided with temperature sensor (10), and the temperature sensor (10) is electrically connected with temperature display devices (12).
2. a kind of universal testing machine according to claim 1 bridge deck water-proof tack coat material shear strength test device,
It is characterized in that：The grip device (11) can be placed directly within forcing press or universal testing machine on push-down head, by forcing press
Or the normal pressure of universal testing machine is converted into shearing force.
3. a kind of universal testing machine according to claim 1 bridge deck water-proof tack coat material shear strength test device,
It is characterized in that：The inclination angle of the angle of the upper fixture (3) and lower clamp (7) is 20 °~65 °.
4. a kind of universal testing machine according to claim 1 bridge deck water-proof tack coat material shear strength test device,
It is characterized in that：The forcing press of the grip device (11) or the load loading velocity of universal testing machine are 40~50mm/min,
And the scope of test temperature is -20 DEG C~50 DEG C.
5. a kind of universal testing machine according to claim 1 bridge deck water-proof tack coat material shear strength test device,
It is characterized in that：The shear Strength Calculation for the water-proof bond material that the grip device (11) and temperature control equipment (14) measure
Formula is as follows：
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In formula：
τ --- the shearing strength of water-proof binding layer material, 104Pa；
P --- forcing press or universal testing machine imposed load, N；
G --- upper supporting plate, upper fixture and the total force of attachment insulation foam material and adding thermal resistance, N；
α --- test specimen stress surface and the angle in load action direction, rad；
S --- test specimen is by the section of shear, cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551308.4U CN206876505U (en) | 2017-05-18 | 2017-05-18 | A kind of universal testing machine bridge deck water-proof tack coat material shear strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551308.4U CN206876505U (en) | 2017-05-18 | 2017-05-18 | A kind of universal testing machine bridge deck water-proof tack coat material shear strength test device |
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| Publication Number | Publication Date |
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| CN206876505U true CN206876505U (en) | 2018-01-12 |
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| CN201720551308.4U Expired - Fee Related CN206876505U (en) | 2017-05-18 | 2017-05-18 | A kind of universal testing machine bridge deck water-proof tack coat material shear strength test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507402A (en) * | 2018-11-14 | 2019-03-22 | 新疆大学 | The method for testing performance of bituminous pavement and asphalt concrete structure preparation method to be measured |
| CN110108578A (en) * | 2019-05-31 | 2019-08-09 | 上海工程技术大学 | A kind of shearing test device and system based on universal testing machine |
| CN110542618A (en) * | 2019-09-11 | 2019-12-06 | 东南大学 | Direct shear test method for interlaminar shear strength of emulsified asphalt surface treatment layer |
| CN110864979A (en) * | 2019-11-25 | 2020-03-06 | 深圳市卓宝科技股份有限公司 | Method for detecting high-temperature shear resistance of waterproof coiled material |
| CN114837023A (en) * | 2022-07-04 | 2022-08-02 | 石家庄铁道大学 | Scrap tire rubber powder modified composite foundation bed structure based on high-speed railway foundation reinforced layer |
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2017
- 2017-05-18 CN CN201720551308.4U patent/CN206876505U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507402A (en) * | 2018-11-14 | 2019-03-22 | 新疆大学 | The method for testing performance of bituminous pavement and asphalt concrete structure preparation method to be measured |
| CN109507402B (en) * | 2018-11-14 | 2021-05-28 | 新疆大学 | Performance detection method of asphalt pavement and preparation method of asphalt concrete structure to be detected |
| CN110108578A (en) * | 2019-05-31 | 2019-08-09 | 上海工程技术大学 | A kind of shearing test device and system based on universal testing machine |
| CN110542618A (en) * | 2019-09-11 | 2019-12-06 | 东南大学 | Direct shear test method for interlaminar shear strength of emulsified asphalt surface treatment layer |
| CN110864979A (en) * | 2019-11-25 | 2020-03-06 | 深圳市卓宝科技股份有限公司 | Method for detecting high-temperature shear resistance of waterproof coiled material |
| CN114837023A (en) * | 2022-07-04 | 2022-08-02 | 石家庄铁道大学 | Scrap tire rubber powder modified composite foundation bed structure based on high-speed railway foundation reinforced layer |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20190518 |