CN105699634B - Emulsified asphalt de-emulsification speed test device and its method based on current value - Google Patents

Emulsified asphalt de-emulsification speed test device and its method based on current value Download PDF

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Publication number
CN105699634B
CN105699634B CN201610025251.4A CN201610025251A CN105699634B CN 105699634 B CN105699634 B CN 105699634B CN 201610025251 A CN201610025251 A CN 201610025251A CN 105699634 B CN105699634 B CN 105699634B
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emulsified asphalt
current value
mould
compound
emulsification speed
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CN105699634A (en
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董夫强
于新
梁星敏
王天宇
尹龙
徐波
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Hohai University HHU
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    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/42Road-making materials

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Abstract

The invention discloses a kind of emulsified asphalt de-emulsification speed test device and its method based on current value, from top to bottom it is sequentially provided with emulsified asphalt compression system, emulsified asphalt storage device, emulsified asphalt dispensing device, heater, compound mould and control system, wherein, the shower nozzle of the emulsified asphalt dispensing device is located in heater, digital voltage regulation ammeter is provided with the emulsified asphalt dispensing device, the digital voltage regulation ammeter can accurately measure the current value on compound die surface, and current value is real-time transmitted in control system;The electrode of mounting temperature sensor and digital voltage regulation ammeter on the compound mould, the present invention can determine the demulsification time of emulsified asphalt, solve present emulsified asphalt can only qualitative evaluation emulsified asphalt de-emulsification speed the problem of.

Description

Emulsified asphalt de-emulsification speed test device and its method based on current value
Technical field
The invention belongs to road engineering ground surface material field, and in particular to a kind of emulsified asphalt demulsification speed based on current value Spend test device and method.
Background technology
Emulsified asphalt is represented as one kind of cold-mix asphalt compound, in recent years, continuous with " green is built the road " technology Development, it is widely used in the maintenance project on road surface.It is different according to the de-emulsification speed of emulsified asphalt, often it is classified as fast Split, in split, split three types slowly, at present, qualitative determination method also not on emulsified asphalt de-emulsification speed, it is therefore proposed that A kind of apparatus and method of emulsified asphalt de-emulsification speed qualitative determination have very important significance.
At present, the measure research for emulsified asphalt de-emulsification speed is also fewer, because the pitch breast in external specification Liquid Virtual production, it is that emulsion has been understood when using for which kind of type, therefore need not carry out the determination of emulsified asphalt de-emulsification speed; And China most of unit in charge of construction oneself production emulsified asphalt, therefore determine emulsified asphalt de-emulsification speed more show it is important. The JTJ E20-2011 that China formulated in 2011《Highway engineering pitch and Asphalt Mixture Experiment code》In the emulsification that provides Pitch de-emulsification speed test method, can qualitatively determine emulsified asphalt de-emulsification speed;Meanwhile, Lanzhou Jiaotong University Li Bo et al. A kind of emulsified asphalt de-emulsification speed tester based on current value has been invented, breast is characterized by measuring the current value of emulsified asphalt Change the de-emulsification speed of pitch.
The method of the measure emulsified asphalt de-emulsification speed provided for China's specification, it is difficult to quantitative measure emulsified asphalt De-emulsification speed, easily causes larger human error, and the application value for Practical Project is smaller;And Lanzhou Jiaotong University Li Bo Et al. invention a kind of emulsified asphalt de-emulsification speed tester based on current value, be that emulsified asphalt is determined by applied voltage Current value represent the de-emulsification speed of emulsified asphalt, although there is similarity with the present invention, but proposed by the present invention survey Trial assembly is put, method and steps is all very different with it, meanwhile, when it is that measurement emulsified asphalt is demulsified in itself liquid Electric current value changes, the sprinkling process without simulating site operation emulsified asphalt more do not simulate live emulsified asphalt and mixed The reciprocation on material road surface is closed, therefore, the result measured lacks accuracy.
The content of the invention
Goal of the invention:The problem of existing for prior art, the invention provides a kind of convenient and simple for operation, feasibility By force, and can quantitative determine emulsified asphalt de-emulsification speed emulsified asphalt de-emulsification speed test device based on current value and Method.
Technical scheme:A kind of emulsified asphalt de-emulsification speed test device based on current value, is from top to bottom sequentially provided with breast Change pitch pressurization system, emulsified asphalt storage device, emulsified asphalt dispensing device, heater, compound mould and control System, wherein, the shower nozzle of the emulsified asphalt dispensing device is located in heater, is provided with the emulsified asphalt dispensing device Digital voltage regulation ammeter, the digital voltage regulation ammeter can accurately measure the current value on compound die surface, and by current value It is real-time transmitted in control system;The electrode of mounting temperature sensor and digital voltage regulation ammeter on the compound mould.
Specifically, described emulsified asphalt dispensing device can be quantified, uniformly by emulsified asphalt spread on compound, Emulsified asphalt fountain height is 5g-30g.
Specifically, described digital voltage regulation ammeter is capable of the electric current value changes of dynamic measurement standard mould upper surface, and It is transmitted to control system in real time, it is desirable to which its measurement accuracy is 1mA;Input voltage can be adjusted simultaneously for 10V-30V.
Specifically, described heater can rapidly, it is uniform by temperature control at 20 DEG C -70 DEG C, and have good Heat-insulating property.
Specifically, described compound mould is water stabilized mixture mould or asphalt mould;Compound mould two Side is provided with good electrode, is internally provided with temperature sensor, being capable of real time temperature measurement and by its incoming control system.
Specifically, described control system includes digital display screen and control button, can control the sprinkling matter of emulsified asphalt Amount, the heating-up temperature of compound, record current value measurement result;It is as follows that it calculates emulsified asphalt demulsification time course:
(1) with the demulsification of emulsified asphalt, measured current value is constantly reducing, and current value begins to decline continuous selection Continuous 4 current values are one group, and I is designated as respectively1, I2, I3, I4
(2) average for reorganizing current value is calculated according to formula { 1 }:
(3) variance for reorganizing current value is calculated according to formula { 2 }:
Think to work as P0During less than 5%, emulsified asphalt now has been demulsified, and the corresponding time is the emulsified asphalt The demulsification time.
Specifically, frame is provided between the emulsified asphalt storage device and control system.
A kind of emulsified asphalt de-emulsification speed method of testing based on current value, described change pitch de-emulsification speed method of testing Comprise the following steps:
Step 1:The a certain amount of emulsified asphalt for needing to determine is added in emulsified asphalt storage device;
Step 2:The compound test specimen that fix level is matched somebody with somebody is added in compound mould, can for water stabilized mixture test specimen With the test specimen according to water stabilized mixture mould molding corresponding size;, can first Beat numbers standard for bitumen mixture specimen Test specimen, then it is cut to corresponding asphalt mould test specimen;
Step 3:Opening control, sets test parameters, includes sprinkling quality, the compound of emulsified asphalt dispensing device The heating-up temperature of mould, and show that obtained emulsified asphalt is calculated according to current value measurement result to be demulsified the time on a display screen.
Beneficial effect:Compared with prior art, a kind of emulsified asphalt de-emulsification speed based on current value that the present invention is provided Test device and method, can direct measurement go out the de-emulsification speed of emulsified asphalt, the speed of emulsified asphalt is evaluated from quantitative angle Degree, reduces and unnecessary thinks error;Live emulsified asphalt demulsification situation can be simulated on higher degree simultaneously, according to what is surveyed Emulsified asphalt current value calculates its de-emulsification speed and is shown on display screen automatically;Convenient and simple for operation, feasibility of the invention By force, with highly important engineering significance.
Brief description of the drawings
Fig. 1 is the emulsified asphalt de-emulsification speed test device schematic diagram based on current value.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.
As shown in figure 1, a kind of emulsified asphalt de-emulsification speed test device based on current value, including emulsified asphalt compression train System 1, emulsified asphalt storage device 2, frame 3, emulsified asphalt dispensing device 4, digital voltage regulation ammeter 5, heater 6, mixing Expect mould 7, electrode 8, temperature sensor 9 and control system 10;From top to bottom it is sequentially provided with emulsified asphalt compression system 1, emulsification Asphalt storage device 2, emulsified asphalt dispensing device 4, heater 6, compound mould 7 and control system 10, wherein, emulsification The shower nozzle of asphalt spraying device 4 is located in heater 6, and digital voltage regulation ammeter 5 is provided with emulsified asphalt dispensing device 4, should Digital voltage regulation ammeter 5 can accurately measure the current value on the surface of compound mould 7, and current value is real-time transmitted into control system In system 10;The electrode 8 of mounting temperature sensor 9 and digital voltage regulation ammeter 5 on compound mould 7;Emulsified asphalt storage device 2 Frame is provided between control system 10.
7 points above-mentioned of compound mould is water stabilized mixture mould and the major class of asphalt mould two, water stabilized mixture Mould is cuboid, long 10cm-20cm, wide 5cm-8cm, high 3cm-6cm;Asphalt mould is cylinder, a diameter of 10cm-15cm, is highly 3cm-5cm;The both sides of compound mould 7 are provided with good electrode 8, play good conducting function;In it Portion is provided with temperature sensor 9, being capable of real time temperature measurement and by its incoming control system 10;The compound mould that the present embodiment is used makes It is asphalt mould, a diameter of 10cm is highly 4cm.
A kind of emulsified asphalt de-emulsification speed method of testing based on resistance value, it comprises the following steps:
(1) a certain amount of emulsified asphalt for needing to determine is added in emulsified asphalt storage device, wherein emulsified asphalt is In split type emulsified asphalt;
(2) compound test specimen that fix level is matched somebody with somebody is added in asphalt mould;Wherein, this compound added Type is AC-20, and with situation as shown in table 1, it is 4cm's that the AC-20 of Beat numbers standard specimen is cut into height to its level Bitumen mixture specimen;
Table 1AC-20 mixture gradation situations
(3) opening control, sets test parameters, includes sprinkling quality, the pitch mixing of emulsified asphalt dispensing device Expect the heating-up temperature of mould, and show that obtained emulsified asphalt is calculated according to the measurement result of current value to be demulsified the time.It is therein The sprinkling quality of emulsified asphalt dispensing device is 10g, and the heating-up temperature of asphalt mould is 50 DEG C.
Meta 86s when the demulsification of this kind of emulsified asphalt can be read finally according to the display screen in control system.

Claims (8)

1. a kind of emulsified asphalt de-emulsification speed test device based on current value, it is characterised in that:From top to bottom it is sequentially provided with breast Change pitch pressurization system (1), emulsified asphalt storage device (2), emulsified asphalt dispensing device (4), heater (6), compound Mould (7) and control system (10), wherein, the shower nozzle of the emulsified asphalt dispensing device (4) is located in heater (6), Digital voltage regulation ammeter (5) is provided with the emulsified asphalt dispensing device (4), the digital voltage regulation ammeter (5) can be measured accurately Current value on compound mould (7) surface, and current value is real-time transmitted in control system (10);The compound mould (7) electrode (8) of mounting temperature sensor (9) and digital voltage regulation ammeter (5) on.
2. the emulsified asphalt de-emulsification speed test device according to claim 1 based on current value, it is characterised in that:It is described Emulsified asphalt dispensing device (4) can quantify, it is uniform by emulsified asphalt spread on compound, emulsified asphalt fountain height is 5g-30g。
3. the emulsified asphalt de-emulsification speed test device according to claim 1 based on current value, it is characterised in that:It is described Digital voltage regulation ammeter (5) be capable of the electric current value changes of dynamic measurement standard mould upper surface, and be transmitted to control in real time System (10) processed, it is desirable to which its measurement accuracy is 1mA;Input voltage can be adjusted simultaneously for 10V-30V.
4. the emulsified asphalt de-emulsification speed test device according to claim 1 based on current value, it is characterised in that:It is described Heater (6) by temperature control at 20 DEG C -70 DEG C.
5. the emulsified asphalt de-emulsification speed test device according to claim 1 based on current value, it is characterised in that:It is described Compound mould (7) be water stabilized mixture mould or asphalt mould;Compound mould (7) both sides are provided with good electrode (8) temperature sensor (9), is internally provided with, being capable of real time temperature measurement and by its incoming control system (10).
6. the emulsified asphalt de-emulsification speed test device according to claim 1 based on current value, it is characterised in that:It is described Control system (10) include digital display screen and control button, can control emulsified asphalt sprinkling quality, the heating of compound Temperature, record current value measurement result;It is as follows that it calculates emulsified asphalt demulsification time course:
(1) with the demulsification of emulsified asphalt, measured current value is constantly reducing, and current value, which is begun to decline, constantly chooses continuous 4 current values be one group, I is designated as respectively1, I2, I3, I4
(2) average of this group of current value is calculated according to formula { 1 }:
(3) variance of this group of current value is calculated according to formula { 2 }:
Think to work as P0During less than 5%, emulsified asphalt now has been demulsified, and the corresponding time is the demulsification of the emulsified asphalt Time.
7. the emulsified asphalt de-emulsification speed test device according to claim 1 based on current value, it is characterised in that:It is described Frame is provided between emulsified asphalt storage device (2) and control system (10).
8. a kind of emulsified asphalt de-emulsification speed method of testing based on current value, it is characterised in that:This method, which is used, is based on electric current The emulsified asphalt de-emulsification speed test device of value, the device is from top to bottom sequentially provided with emulsified asphalt compression system (1), emulsification drip Blue or green storage device (2), emulsified asphalt dispensing device (4), heater (6), compound mould (7) and control system (10), Wherein, the shower nozzle of the emulsified asphalt dispensing device (4) is located in heater (6), in the emulsified asphalt dispensing device (4) Provided with digital voltage regulation ammeter (5), the digital voltage regulation ammeter (5) can accurately measure the electric current on compound mould (7) surface Value, and current value is real-time transmitted in control system (10);On the compound mould (7) mounting temperature sensor (9) and The electrode (8) of digital voltage regulation ammeter (5);
Described emulsified asphalt de-emulsification speed method of testing comprises the following steps:
Step 1:The a certain amount of emulsified asphalt for needing to determine is added in emulsified asphalt storage device (2);
Step 2:The compound test specimen that fix level is matched somebody with somebody is added in compound mould, for water stabilized mixture test specimen, Ke Yigen According to the test specimen of water stabilized mixture mould molding corresponding size;For bitumen mixture specimen, can first Beat numbers standard specimen, Corresponding asphalt mould test specimen is cut to again;
Step 3:Opening control (10), sets test parameters, includes the sprinkling quality, mixed of emulsified asphalt dispensing device (4) The heating-up temperature of material mould (7) is closed, and shows that obtained emulsified asphalt is calculated according to current value measurement result to be broken on a display screen The newborn time.
CN201610025251.4A 2016-01-13 2016-01-13 Emulsified asphalt de-emulsification speed test device and its method based on current value Expired - Fee Related CN105699634B (en)

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CN110108598B (en) * 2019-05-24 2024-02-02 中铁隧道局集团有限公司 Device and method for testing demulsification speed and demulsification rate of emulsified asphalt
CN113218810B (en) * 2021-04-30 2024-07-09 西安公路研究院 Method for measuring demulsification speed of emulsified asphalt
CN118707088A (en) * 2024-08-30 2024-09-27 山东翌纬公路工程有限公司 Emulsified asphalt demulsification speed testing device and method

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CN2848925Y (en) * 2005-11-29 2006-12-20 美的集团有限公司 Emulsified asphalt spraying device
CN203551496U (en) * 2013-10-30 2014-04-16 兰州交通大学 Demulsification velocity tester for emulsified asphalt
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