CN106769614A - A kind of experimental rig and method for assessing surface of aggregate asphalt membrane block-water performance - Google Patents
A kind of experimental rig and method for assessing surface of aggregate asphalt membrane block-water performance Download PDFInfo
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- CN106769614A CN106769614A CN201710057082.7A CN201710057082A CN106769614A CN 106769614 A CN106769614 A CN 106769614A CN 201710057082 A CN201710057082 A CN 201710057082A CN 106769614 A CN106769614 A CN 106769614A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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Abstract
The invention discloses a kind of experimental rig and method for testing surface of aggregate asphalt membrane block-water performance, including environmental cabinet, computer and the cistern in environmental cabinet, lowering or hoisting gear, the first basket, the second basket, the first meausring apparatus for weighing the first basket weight and the second meausring apparatus for weighing the second basket weight；Cistern is fixed on the bottom of environmental cabinet, first basket and the second basket are fixed on the top of environmental cabinet by lowering or hoisting gear, first basket and the second basket are located at the top of cistern, first meausring apparatus and the second meausring apparatus are connected with computer, and the device and method can realize the assessment of surface of aggregate asphalt membrane block-water performance.
Description
Technical field
The present invention relates to a kind of experimental rig and method, and in particular to a kind of assessment surface of aggregate asphalt membrane block-water performance
Experimental rig and method.
Background technology
Bituminous paving has the advantages that driving is comfortable and performance is good, can guarantee that automobile quickly and low noise it is capable
Sail, and bituminous paving has the advantages that construction speed is fast, open to traffic is fast, easy to maintenance, recoverable, thus it is extensive
It is applied to all over the world.In recent years, as some High Grade Bitumen Pavement highways there occurs more serious Moisture Damage problem, this
Plant the attention that destruction situation gradually causes various countries researchers.At present, the experiment of test bituminous paving anti-water damage ability is as frozen
Melt diametral compression test etc. to still have several drawbacks, it is impossible to for determining surface of aggregate asphalt membrane block-water performance in asphalt water resistant
Acted on played in infringement ability.
The Moisture Damage of so-called bituminous paving, refer to bituminous paving in the presence of moisture, undergo the anti-of traffic loading
Multiple effect, moisture is progressively invaded on the interactive interface of asphalt and aggregate, simultaneously because hydrodynamic effect, causes surface of aggregate
Asphalt membrane and the cohesive force between gathering materials gradually are lost and bituminous paving is broken ring.The mechanism of action of Water Damage on Asphalt Pavement and two
The process of kind is relevant, is first to reduce asphalt adhesion during water energy invades pitch, so as to cause the intensity of asphalt and strength
Degree reduces, and secondly, water energy blocks the mutual bonding of asphalt and aggregate, due to surface of aggregate into asphalt film and between gathering materials
Absorption affinity to water is stronger than pitch, causes the contact on asphalt and aggregate surface to reduce, and pitch is peeled off from surface of aggregate, pitch mixing
The intensity of material is gradually reduced, and under the synergy of traffic load, Water Damage substantially aggravates, and causes asphalt concrete pavement to produce
The structural destruction of rut, loose, pit and part, however, the experiment of existing test bituminous paving anti-water damage ability is all
Do not considered that surface of aggregate asphalt membrane block-water performance was acted on played in asphalt anti-water damage ability, it is therefore desirable to design
Go out a kind of device and method, the device and method can realize the assessment of surface of aggregate asphalt membrane block-water performance.
The content of the invention
Shortcoming it is an object of the invention to overcome above-mentioned prior art, there is provided one kind test surface of aggregate asphalt membrane resistance
The experimental rig and method of aqueous energy, the device and method can realize the assessment of surface of aggregate asphalt membrane block-water performance.
To reach above-mentioned purpose, the experimental rig of assessment surface of aggregate asphalt membrane block-water performance of the present invention includes ring
Border case, computer and the cistern in environmental cabinet, lowering or hoisting gear, the first basket, the second basket, for weighing the first net
First meausring apparatus of basket weight and the second meausring apparatus for weighing the second basket weight；
Cistern is fixed on the bottom of environmental cabinet, and the first basket and the second basket are fixed on environmental cabinet by lowering or hoisting gear
Top, the first basket and the second basket be located at the top of cistern, the first meausring apparatus and the second meausring apparatus with calculating
Machine is connected.
Lowering or hoisting gear include the first elevating lever, the second elevating lever, the 3rd elevating lever, the first pressure-bearing platform, the second pressure-bearing platform and
3rd pressure-bearing platform, wherein, the upper end of the upper end of the first elevating lever, the upper end of the second elevating lever and the 3rd elevating lever is both secured to ring
The top of border case, the first pressure-bearing platform, the second pressure-bearing platform and the 3rd pressure-bearing platform be individually fixed in the lower end of the first elevating lever, second liter
The lower end of bar and the lower end of the 3rd elevating lever are dropped, and the first meausring apparatus is fixed between the first pressure-bearing platform and the second pressure-bearing platform, the
Two meausring apparatuses are fixed between the second pressure-bearing platform and the 3rd pressure-bearing platform, and the first net is suspended on the first meausring apparatus, and second
Net is suspended on the second meausring apparatus.
Base plate is provided between environmental cabinet and cistern, wherein, the upper surface of base plate is offered for being fixed on cistern
Groove, wherein, the bottom of cistern is embedded in the groove.
Temperature sensor is provided with cistern, heating system and refrigeration system are provided with environmental cabinet, wherein, temperature sensor
Output end be connected with the input of computer, the control end of heating system and the control end of refrigeration system with computer
Output end is connected.
Side at the top of cistern is provided with overfall.
The bottom of cistern is provided with delivery port.
Between first meausring apparatus and the first pressure-bearing platform, between the first meausring apparatus and the second pressure-bearing platform, second weigh dress
Put between the second pressure-bearing platform and be equipped with rubber support between the second meausring apparatus and the 3rd pressure-bearing platform.
First meausring apparatus is connected by the first fishhook with the first basket, and the second meausring apparatus is by the second fishhook and the
Two baskets are connected.
First meausring apparatus and the second meausring apparatus are balance.
The test method of assessment surface of aggregate asphalt membrane block-water performance of the present invention is comprised the following steps：
Dried to gathering materials, then will gather materials and be equally divided into two parts, wherein, first part is gathered materials and second part of quality gathered materials
It is m0, first part is gathered materials and is placed into dry environment, second part is gathered materials and is immersed in pitch, then take out second part of collection
Material, makes second part of asphalt solidification of surface of aggregate form asphalt membrane, and second part of quality m for gathering materials then is weighed again0′；
First part is gathered materials and second part is gathered materials and be respectively placed in the first basket and the second basket, then control lowering or hoisting gear
First basket and the second basket are immersed in cistern, first is weighed respectively by the first meausring apparatus and the second meausring apparatus
The weight of basket and the second basket；Obtain the i-th unit interval surface of aggregate asphalt membrane water blocking rate αi=(gather materials in the i-th unit interval
Water suction quality miThe water suction quality m that asphalt membrane parcel gathers materials in-the i-th unit intervali′The water suction gathered materials in the unit interval of)/i-th
Quality mi, wherein, the water suction qualitative data m gathered materials in the i-th unit intervaliIn=the i-th unit interval after water suction first part gather materials
Quality mn-m0, the second water suction quality m for gathering materials in the i-th unit intervali′In=the i-th unit interval after water suction second part gather materials
Quality mn′-m0′, obtain the water blocking rate α of the surface of aggregate asphalt membrane that N number of unit interval detection is obtained1, α2, α3...αN, then test set
Expect surface asphalt membrane water blocking rate α be：
Water blocking rate α according to experiment surface of aggregate asphalt membrane assesses surface of aggregate asphalt membrane block-water performance.
The invention has the advantages that：
The experimental rig and method of test surface of aggregate asphalt membrane block-water performance of the present invention, will in concrete operations
First part gather materials and there is asphalt membrane on surface second part gather materials and be placed into the first basket and the second basket, then by the first basket and
Second basket is positioned in cistern, and weighs its quality in real time by the first meausring apparatus and the second meausring apparatus, according to
Portion gathers materials and second part of water blocking rate of the change calculations experiment surface of aggregate asphalt membrane of aggregate quality, is then gathered materials according to experiment
The water blocking rate assessment surface of aggregate asphalt membrane block-water performance of surface asphalt membrane, it is simple to operate, it is test bituminous paving anti-water damage
Ability provides technical support.
Further, overfall is provided with the top of cistern, when water is added in cistern, when the water surface of cistern reclaimed water
During more than the overfall, then the water in cistern is discharged through overfall, and finally makes the liquid level and overfall of cistern reclaimed water
Flush, so that the effective amount to cistern reclaimed water is controlled.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of cistern 3 in the present invention；
Fig. 3 is the structural representation of the first basket 4 and the second basket in the present invention；
Fig. 4 is the structural representation of lowering or hoisting gear in the present invention.
Wherein, 1 be environmental cabinet, 2 be base plate, 3 be cistern, 4 be the first basket, 5 be the first fishhook, 6 be first lifting
Bar, 7 be power set, 8 be the second meausring apparatus, 9 be rubber support, 10 be the 3rd pressure-bearing platform, 11 be overfall, 12 be water outlet
Mouthful, 13 be computer, 14 be bolt, 15 be sensor, 16 be groove, 17 be valve.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to Fig. 1, assess the experimental rig of surface of aggregate asphalt membrane block-water performance include environmental cabinet 1, computer 13 and
Cistern 3, lowering or hoisting gear, the first basket 4, the second basket in environmental cabinet 1, for weigh the weight of the first basket 4
One meausring apparatus and the second meausring apparatus 8 for weighing the second basket weight；Cistern 3 is fixed on the bottom of environmental cabinet 1,
First basket 4 and the second basket are fixed on the top of environmental cabinet 1 by lowering or hoisting gear, and the first basket 4 and the second basket are located at
The top of cistern 3, the first meausring apparatus and the second meausring apparatus 8 are connected with computer 13.
Lowering or hoisting gear include the first elevating lever 6, the second elevating lever, the 3rd elevating lever, the first pressure-bearing platform, the second pressure-bearing platform and
3rd pressure-bearing platform 10, wherein, the upper end of the upper end, the upper end of the second elevating lever and the 3rd elevating lever of the first elevating lever 6 is fixed
In the top of environmental cabinet 1, the first pressure-bearing platform, the second pressure-bearing platform and the 3rd pressure-bearing platform 10 are individually fixed under the first elevating lever 6
The lower end of end, the lower end of the second elevating lever and the 3rd elevating lever, the first meausring apparatus is fixed on the first pressure-bearing platform and the second pressure-bearing
Between platform, the second meausring apparatus 8 is fixed between the second pressure-bearing platform and the 3rd pressure-bearing platform 10, and the first net is suspended to the first weighing
On device, the second net is suspended on the second meausring apparatus 8.
Base plate 2 is provided between environmental cabinet 1 and cistern 3, wherein, the upper surface of base plate 2 is offered for being fixed on retaining
The groove 16 in pond 3, wherein, the bottom of cistern 3 is embedded in the groove 16；Temperature sensor 15, ring are provided with cistern 3
Heating system and refrigeration system are provided with border case 1, wherein, the output end of temperature sensor 15 is connected with the input of computer 13
Connect, the output end of the control end of heating system and the control end of refrigeration system with computer 13 is connected；The top of cistern 3
Side is provided with overfall 11；The bottom of cistern 3 is provided with delivery port 12.
Between first meausring apparatus and the first pressure-bearing platform, between the first meausring apparatus and the second pressure-bearing platform, second weigh dress
Put 8 and second and be equipped with rubber support 9 between pressure-bearing platform and between the second meausring apparatus 8 and the 3rd pressure-bearing platform 10；First claims
Amount device is connected by the first fishhook 5 with the first basket 4, and the second meausring apparatus 8 is connected by the second fishhook with the second basket
Connect；First meausring apparatus and the second meausring apparatus 8 are balance.
The test method of assessment surface of aggregate asphalt membrane block-water performance of the present invention is comprised the following steps：
Dried to gathering materials, then will gather materials and be equally divided into two parts, wherein, first part is gathered materials and second part of quality gathered materials
It is m0, first part is gathered materials and is placed into dry environment, second part is gathered materials and is immersed in pitch, then take out second part of collection
Material, makes second part of asphalt solidification of surface of aggregate form asphalt membrane, and second part of quality m for gathering materials then is weighed again0′；
First part is gathered materials and second part is gathered materials and be respectively placed in the first basket 4 and the second basket, then control lifting to fill
Put and the first basket 4 and the second basket are immersed in cistern 3, claimed respectively by the first meausring apparatus and the second meausring apparatus 8
Take the weight of the first basket 4 and the second basket；Obtain the i-th unit interval surface of aggregate asphalt membrane water blocking rate αi=(the i-th unit interval
The water suction quality m for inside gathering materialsiThe water suction quality m that asphalt membrane parcel gathers materials in-the i-th unit intervali′Gather materials in the unit interval of)/i-th
Water suction quality mi, wherein, the water suction qualitative data m gathered materials in the i-th unit intervaliIn=the i-th unit interval first part after water suction
The quality m for gathering materialsn-m0, the second water suction quality m for gathering materials in the i-th unit intervali′In=the i-th unit interval second part after water suction
The quality m for gathering materialsn′-m0′, obtain the water blocking rate α of the surface of aggregate asphalt membrane that N number of unit interval detection is obtained1, α2, α3...αN, then
Test surface of aggregate asphalt membrane water blocking rate α be：
Water blocking rate α according to experiment surface of aggregate asphalt membrane assesses surface of aggregate asphalt membrane block-water performance.
Base plate 2 is fixed in environmental cabinet 1 by bolt 14, and constant level in cistern 3 can be made by overfall 11, is passed through
The delivery port 12 of cistern 3 can play a part of draining, change water, and valve 17 is provided with delivery port 12；By temperature sensor 15,
Computer 13, refrigeration system and heating system realize that the temperature of the reclaimed water of cistern 3 is constant, the first elevating lever 6, the second elevating lever and
3rd elevating lever is driven by power set 7.
The present invention can surface of aggregate asphalt membrane block-water performance be tried to conventional sense, cracking state and under ageing state
Test, specially：
The process of the test of surface of aggregate asphalt membrane block-water performance is under conventional sense：
1) before the test, the temperature in the temperature adjustment environmental cabinet 1 according to test requirements document, closes the bottom of cistern 3
Delivery port 12, then toward addition clean water in cistern 3 untill overfall 11 there are flowing out；
2) dried to gathering materials, then will gather materials and be equally divided into two parts, wherein, first part is gathered materials and second part of matter gathered materials
Amount is m0, first part is gathered materials and is placed into dry environment, second part is gathered materials and is immersed in pitch, then take out second part
Gather materials, second part of asphalt solidification of surface of aggregate is formed asphalt membrane, second part of quality m for gathering materials then is weighed again0′；
3) first part is gathered materials and second part is gathered materials and be respectively placed in the first basket 4 and the second basket, then control lifting
Be immersed in cistern 3 for first basket 4 and the second basket by device, is distinguished by the first meausring apparatus and the second meausring apparatus 8
Weigh the weight of the first basket 4 and the second basket；Obtain the i-th unit interval surface of aggregate asphalt membrane water blocking rate αi=(during the i-th unit
The interior water suction quality m for gathering materialsiThe water suction quality m that asphalt membrane parcel gathers materials in-the i-th unit intervali′Collection in the unit interval of)/i-th
The water suction quality m of materiali, wherein, the water suction qualitative data m gathered materials in the i-th unit intervaliIn=the i-th unit interval first after water suction
The quality m that part is gathered materialsn-m0, the second water suction quality m for gathering materials in the i-th unit intervali′In=the i-th unit interval second after water suction
The quality m that part is gathered materialsn′-m0′, obtain the water blocking rate α of the surface of aggregate asphalt membrane that N number of unit interval detection is obtained1, α2, α3...αN,
Then the water blocking rate α of experiment surface of aggregate asphalt membrane is：
The determination process of surface of aggregate asphalt membrane water blocking rate is under cracking state：
Dried to gathering materials, then will gather materials and be equally divided into two parts, wherein, first part is gathered materials and second part of quality gathered materials
It is m0, first part is gathered materials and is placed into dry environment, second part is gathered materials and is immersed in pitch, then take out second part of collection
Material, makes the asphalt solidification of second part of surface of aggregate form asphalt membrane, if then cut out arterial highway crack in asphalt membrane upper slitter, then claim again
Take second part of quality m for gathering materials0′, repeat step 3), obtain surface of aggregate asphalt membrane water blocking rate under cracking state.
The determination process of surface of aggregate asphalt membrane water blocking rate is under ageing state：
Dried to gathering materials, then will gather materials and be equally divided into two parts, wherein, first part is gathered materials and second part of quality gathered materials
It is m0, first part is gathered materials and is placed into dry environment, second part is gathered materials be immersed in it is aging after pitch in, then take out
Second part is gathered materials, and the asphalt solidification of second part of surface of aggregate is formed asphalt membrane, if then cut out arterial highway crack in asphalt membrane upper slitter,
Then second part of quality m for gathering materials is weighed again0′, repeat step 3), obtain surface of aggregate asphalt membrane water blocking rate under ageing state.
The determination process of surface of aggregate asphalt membrane water blocking rate warming coefficient is under conventional sense：
When the temperature of the reclaimed water of cistern 3 is T1When, measurement obtains testing the water blocking rate α of surface of aggregate asphalt membrane1′；Work as retaining
The temperature of the reclaimed water of pond 3 is T2When, measurement obtains testing the water blocking rate α of surface of aggregate asphalt membrane2′, then surface of aggregate under conventional sense
Asphalt membrane water blocking rate warming coefficient lambda is：
Claims (10)
1. it is a kind of assess surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that including environmental cabinet (1), calculate
Machine (13) and the cistern (3) in environmental cabinet (1), lowering or hoisting gear, the first basket (4), the second basket, for weighing
First meausring apparatus of one basket (4) weight and the second meausring apparatus (8) for weighing the second basket weight；
Cistern (3) is fixed on the bottom of environmental cabinet (1), and the first basket (4) and the second basket are fixed on by lowering or hoisting gear
The top of environmental cabinet (1), the first basket (4) and the second basket are located at the top of cistern (3), and the first meausring apparatus and second claim
Amount device (8) is connected with computer (13).
2. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that lifting
Device includes the first elevating lever (6), the second elevating lever, the 3rd elevating lever, the first pressure-bearing platform, the second pressure-bearing platform and the 3rd pressure-bearing platform
(10), wherein, the upper end of the upper end, the upper end of the second elevating lever and the 3rd elevating lever of the first elevating lever (6) is both secured to environment
The top of case (1), the first pressure-bearing platform, the second pressure-bearing platform and the 3rd pressure-bearing platform (10) are individually fixed under the first elevating lever (6)
The lower end of end, the lower end of the second elevating lever and the 3rd elevating lever, the first meausring apparatus is fixed on the first pressure-bearing platform and the second pressure-bearing
Between platform, the second meausring apparatus (8) is fixed between the second pressure-bearing platform and the 3rd pressure-bearing platform (10), and the first net is suspended to first
On meausring apparatus, the second net is suspended on the second meausring apparatus (8).
3. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that environment
Base plate (2) is provided between case (1) and cistern (3), wherein, the upper surface of base plate (2) is offered for being fixed on cistern (3)
Groove (16), wherein, the bottom of cistern (3) is embedded in the groove (16).
4. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that retaining
It is provided with pond (3) in temperature sensor (15), environmental cabinet (1) and is provided with heating system and refrigeration system, wherein, temperature sensor
(15) output end is connected with the input of computer (13), the control end of heating system and the control end of refrigeration system with
The output end of computer (13) is connected.
5. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that retaining
Side at the top of pond (3) is provided with overfall (11).
6. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that retaining
The bottom in pond (3) is provided with delivery port (12).
7. it is according to claim 2 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that first
Between meausring apparatus and the first pressure-bearing platform, between the first meausring apparatus and the second pressure-bearing platform, the second meausring apparatus (8) holds with second
Rubber support (9) is equipped between presenting a theatrical performance as the last item on a programme and between the second meausring apparatus (8) and the 3rd pressure-bearing platform (10).
8. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that first
Meausring apparatus is connected by the first fishhook (5) with the first basket (4), and the second meausring apparatus (8) is by the second fishhook and second
Basket is connected.
9. it is according to claim 1 assessment surface of aggregate asphalt membrane block-water performance experimental rig, it is characterised in that first
Meausring apparatus and the second meausring apparatus (8) are balance.
10. it is a kind of assess surface of aggregate asphalt membrane block-water performance test method, it is characterised in that based on described in claim 1
Assessment surface of aggregate asphalt membrane block-water performance experimental rig, comprise the following steps：
Dried to gathering materials, then will gather materials and be equally divided into two parts, wherein, first part is gathered materials and second part of quality gathered materials is
m0, first part is gathered materials and is placed into dry environment, second part is gathered materials and is immersed in pitch, then take out second part and gather materials,
Second part of asphalt solidification of surface of aggregate is formed asphalt membrane, second part of quality m for gathering materials then is weighed again0′；
First part is gathered materials and second part is gathered materials and be respectively placed in the first basket (4) and the second basket, then control lowering or hoisting gear
First basket (4) and the second basket are immersed in cistern (3), by the first meausring apparatus and the second meausring apparatus (8) point
Another name takes the weight of the first basket (4) and the second basket；Obtain the i-th unit interval surface of aggregate asphalt membrane water blocking rate αi=(i-th is single
The water suction quality m gathered materials in the time of positioniThe water suction quality m that asphalt membrane parcel gathers materials in-the i-th unit intervali′The unit interval of)/i-th
The water suction quality m for inside gathering materialsi, wherein, the water suction qualitative data m gathered materials in the i-th unit intervaliIn=the i-th unit interval after water suction
First part of quality m for gathering materialsn-m0, the second water suction quality m for gathering materials in the i-th unit intervali′In=the i-th unit interval after water suction
Second part of quality m for gathering materialsn′-m0′, obtain the water blocking rate α of the surface of aggregate asphalt membrane that N number of unit interval detection is obtained1, α2,
α3...αN, then test surface of aggregate asphalt membrane water blocking rate α be：
Water blocking rate α according to experiment surface of aggregate asphalt membrane assesses surface of aggregate asphalt membrane block-water performance.
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| CN201710057082.7A CN106769614B (en) | 2017-01-22 | 2017-01-22 | A kind of experimental rig and method for assessing surface of aggregate asphalt membrane block-water performance |
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| CN201710057082.7A CN106769614B (en) | 2017-01-22 | 2017-01-22 | A kind of experimental rig and method for assessing surface of aggregate asphalt membrane block-water performance |
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| Publication number | Publication date |
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| CN106769614B (en) | 2019-05-17 |
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