CN103926179A - Asphalt concrete permeability detector - Google Patents
Asphalt concrete permeability detector Download PDFInfo
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- CN103926179A CN103926179A CN201410070582.0A CN201410070582A CN103926179A CN 103926179 A CN103926179 A CN 103926179A CN 201410070582 A CN201410070582 A CN 201410070582A CN 103926179 A CN103926179 A CN 103926179A
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Abstract
The invention provides an asphalt concrete permeability detector. A power supply is not required. An asphalt concrete test piece (a Marshall test piece or an asphalt concrete core sample with phi 100mm) is placed into a permeability test mold for side-surface sealing; then, permeable stone and filter paper are put into upper and lower layers, and the upper and lower layers are placed in a permeability experimental device; a vent valve is opened to discharge air in the test mold; the vent valve is closed; a vacuum pump is started for air exhaust; water level at a water inlet is recorded; a stopwatch is started for recording; after time t, corresponding water level of a piezometric tube is recorded; water temperatures at the beginning and at the end of the test are respectively recorded; and asphalt concrete permeability coefficient is calculated through detection. The detector is rapid and accurate.
Description
Technical field
The present invention relates to detect permeability test, be particularly useful for the detection of pitch, concrete filtration coefficient, acquired results is not only easy but also accurate.
Background technology
Current conventional bituminous concrete infiltration coefficient testing equipment, it is more that the shortcoming of existence is exactly the instrument valve adopting, and complex operation, and easily produce gas leak phenomenon particularly, detecting infiltration coefficient hour, records infiltration coefficient inaccurate, unstable.
The present invention is for testing the detection of bituminous concrete infiltration coefficient, the pick-up unit of design only need by test specimen is disposable install after, can test, and calculate infiltration coefficient; Especially this device can carry out varying head test, and simple to operate, and data are accurate, and this device also can, for other correlation tests, have important test use value.
Summary of the invention
The object of the invention is to: described test unit, only test specimen need be installed and can be detected, realized the object to the accurate test of bituminous concrete infiltration coefficient.
The present invention seeks to realize like this: a kind of pick-up unit of bituminous concrete infiltration, consists of upper unit 1, bleeding point 2, water-storing bottle 3, influent side pressure pipe 4, water inlet 5, exhausr port 6, lower device 7, copper sleeve 8, bolt 9, valve 10, permeable stone 11, test specimen 12, filter paper 13, air extractor 19, tongs 14, tongs 15, tongs 16, tongs 17, tongs 18;
Pick-up unit is divided into upper unit 1 and lower device 7, between upper unit 1 and lower device 7, test column is set, and distinguishes uniform symmetrical bolt hole, the affixed bolt matching with it 9 on the upper unit 1 of test column and lower device 7; In test column, arrange and detect test specimen 12, in top and the bottom of test specimen 12, laying respectively permeable stone 11 and filter paper 13, the permeable stone 11 of its middle and upper part and filter paper 13 are fixed on the top board of top, and permeable stone 11 and the filter paper 13 of bottom are fixed on lower raft; On the copper sleeve 8 of a side of upper unit 1, tongs 15 is set, the pipeline that connects bleeding point 2 and air extractor 19 is set at the top of upper unit 1, tongs 14 is being set on its pipeline; On the exhausr port 6 of lower device 7 one sides, tongs 16 is set, water inlet 5 places that are arranged on lower device 7 bottoms are installed with valve 10, on the pipeline of connection water inlet 5 and water-storing bottle 3, tongs 18 are set; On the pipeline between water inlet 5 and water-storing bottle 3, influent side pressure pipe 4 is set, wherein on a side pipe line that connects water inlet 5, tongs 17 is set.
The feature of device of the present invention is: the one, and this device, without power supply, can carry out test operation; The 2nd, bituminous concrete test specimen (no matter be marshal piece or bituminous concrete core Ф is 100mm) is packed in infiltration die trial, carry out side seal, then levels is put into permeable stone and filter paper, is placed in permeability experimental facility; The 3rd, the lower vent valve in infiltration experiment device is opened, discharge the air in die trial, then close lower vent valve; The 4th, start vacuum pump and bleed; The 5th, record the water level of water inlet, start stopwatch record, after time t, record the corresponding water level of piezometric tube, and the water temperature when recording on-test and finishing, by detections, obtaining above test figure, calculating bituminous concrete infiltration coefficient, shows technical progress.
Accompanying drawing explanation
By reference to the accompanying drawings the present invention is further illustrated.
The front view that accompanying drawing 1 is this apparatus structure;
As shown in the figure: 1-upper unit, 7-lower device, 6-exhausr port, 9-bolt, 8-copper sleeve.
The A-A cut-open view that accompanying drawing 2 is this apparatus structure;
As shown in the figure: 1-lower device, 9-bolt, 8-copper sleeve.
The B-B cut-open view that accompanying drawing 3 is this apparatus structure;
As shown in the figure: 1-upper unit, 7-lower device, 9-bolt, 5-water inlet, 11-permeable stone, 12-test specimen, 13-filter paper, 10-valve.
The side view that accompanying drawing 4 is this apparatus structure;
As shown in the figure: 1-upper unit, 9-bolt, 5-water inlet, 7-lower device, 10-valve.
The C-C cut-open view that accompanying drawing 5 is this apparatus structure;
As shown in the figure: 1-upper unit, 7-lower device, 9-bolt, 5-water inlet, 6-exhausr port, 8-copper sleeve, 11-permeable stone, 12-test specimen, 13-filter paper, 10-valve.
Accompanying drawing 6 is this device technique schematic flow sheet;
As shown in the figure: 1-upper unit, 2-bleeding point, 3-water-storing bottle, 4-influent side pressure pipe, 5-water inlet, 6-exhausr port, 7-lower device, 9-bolt, 19-air extractor, 14-tongs, 15-tongs, 16-tongs, 17-tongs, 18-tongs.
Embodiment
The present invention is described further in conjunction with the embodiments.
Embodiment
Device assembling: pick-up unit is divided into upper unit 1 and lower device 7, between upper unit 1 and lower device 7, test column is set, uniform symmetrical bolt hole respectively on the upper unit 1 of test column and lower device 7, the affixed bolt matching with it 9; In test column, arrange and detect test specimen 12, in top and the bottom of test specimen 12, laying respectively permeable stone 11 and filter paper 13, the permeable stone 11 of its middle and upper part and filter paper 13 are fixed on the top board of top, and permeable stone 11 and the filter paper 13 of bottom are fixed on lower raft; On the copper sleeve 8 of a side of upper unit 1, tongs 15 is set, the pipeline that connects bleeding point 2 and air extractor 19 is set at the top of upper unit 1, tongs 14 is being set on its pipeline; On the exhausr port 6 of lower device 7 one sides, tongs 16 is set, water inlet 5 places that are arranged on lower device 7 bottoms are installed with valve 10; On the pipeline of connection water inlet 5 and water-storing bottle 3, tongs 18 is set, on the pipeline between water inlet 5 and water-storing bottle 3, influent side pressure pipe 4 is set, wherein on a side pipe line that connects water inlet 5, tongs 17 is set.
Operation steps:
1) by pitch marshal piece or pitch core test specimen pack in infiltration die trial, and die trial side seal is good, levels is put filter paper and permeable stone well.
2) infiltration die trial is packed in the test unit of upper and lower part, test specimen is put the thick permeable stone of 10mm and filter paper up and down well, and tighten the screws; During installation, utilize tongs to clamp whole rubber tubes, prevent in the saturating die trial of water infiltration.
3) tongs in infiltration experiment device 14,15,16 is opened, with tongs 17, clamp rubber tube, move the water to flow into bottom test unit, again lower vent valve is opened, until exhaust ports there are flowing out, close lower vent valve, this object is the air of discharging in die trial, closes tongs 14,15,16.
4) vacuum pump apparatus is connected to air extractor, tongs 17 is opened, start vacuum pump and bleed, until discharge without bubble in suction bottle, tongs 17 is clamped to rubber tube.
5) tongs 14,18 is opened, made into the stable level of water piezometric tube.
6) record carries out the water level of water piezometric tube, starts stopwatch record, after time t simultaneously, record the corresponding water level of piezometric tube, so after repetition test 3 times or 4 times, then after piezometric level is risen again, repeat again to detect, and the water temperature when recording on-test and finishing.
7) head difference of each test is not less than 50mm, in 3h or 4h, completes, and while there is relatively large deviation as twice test findings, should before test, again bleed saturated, then test.
Claims (1)
1. a pick-up unit for bituminous concrete infiltration, is characterized in that: upper unit (1), bleeding point (2), water-storing bottle (3), influent side pressure pipe (4), water inlet (5), exhausr port (6), lower device (7), copper sleeve (8), bolt (9), valve (10), permeable stone (11), test specimen (12), filter paper (13), air extractor (19), tongs (14), tongs (15), tongs (16), tongs (17), tongs (18), consist of;
Pick-up unit is divided into upper unit (1) and lower device (7), between upper unit (1) and lower device (7), test column is set, at upper uniform the symmetrical bolt hole respectively of the upper unit (1) of test column and lower device (7), the affixed bolt matching with it (9); In test column, arrange and detect test specimen (12), permeable stone (11) and filter paper (13) are being laid respectively in top and bottom at test specimen (12), the permeable stone of its middle and upper part (11) and filter paper (13) are fixed on the top board of top, and the permeable stone of bottom (11) and filter paper (13) are fixed on lower raft; On the copper sleeve (8) of a side of upper unit (1), tongs (15) is set, the pipeline that connects bleeding point (2) and air extractor (19) is set at the top of upper unit (1), tongs (14) is being set on its pipeline; On the exhausr port (6) of lower device (7) one sides, tongs (16) is set, the water inlet (5) that is arranged on lower device (7) bottom locates to be installed with valve (10); On the pipeline of connection water inlet (5) and water-storing bottle (3), tongs (18) is set, on the pipeline between water inlet (5) and water-storing bottle (3), influent side pressure pipe (4) is set, wherein on a side pipe line that connects water inlet (5), tongs (17) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070582.0A CN103926179A (en) | 2014-02-27 | 2014-02-27 | Asphalt concrete permeability detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070582.0A CN103926179A (en) | 2014-02-27 | 2014-02-27 | Asphalt concrete permeability detector |
Publications (1)
| Publication Number | Publication Date |
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| CN103926179A true CN103926179A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410070582.0A Pending CN103926179A (en) | 2014-02-27 | 2014-02-27 | Asphalt concrete permeability detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699269A (en) * | 2016-02-24 | 2016-06-22 | 哈尔滨工业大学 | Multi-directional constant-pressure asphalt mixture seepage testing device |
| CN106706501A (en) * | 2017-02-22 | 2017-05-24 | 中国水利水电科学研究院 | Expansive soil saturated water conduction coefficient determination system and method |
| CN107589049A (en) * | 2017-08-02 | 2018-01-16 | 同济大学 | A kind of method and device for being used to determine cleaning agent diffusion coefficient in fouling membrane layer |
| CN107807080A (en) * | 2017-10-12 | 2018-03-16 | 乔欢欢 | A kind of building wall seam repairs the impermeable detection means of pitch and its detection method |
| CN107843539A (en) * | 2017-12-13 | 2018-03-27 | 青岛理工大学 | A kind of ion penetration resistance of concrete measuring method |
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| CN85204904U (en) * | 1985-11-12 | 1986-08-13 | 陕西机械学院 | Permeability testing instrument for bituminous concrete |
| CN2355005Y (en) * | 1998-05-05 | 1999-12-22 | 水利部天津水利水电勘测设计研究院勘察院 | Water supplier for osmotic deformation instrument |
| CN201348601Y (en) * | 2008-12-31 | 2009-11-18 | 长沙理工大学 | Pressure permeameter |
| CN102401778A (en) * | 2011-04-20 | 2012-04-04 | 河海大学 | Device and method for measuring swelling representation parameters of swelling soil |
| CN202256114U (en) * | 2011-10-27 | 2012-05-30 | 温文富 | Novel permeameter |
| CN202433284U (en) * | 2012-02-06 | 2012-09-12 | 新疆水利水电科学研究院 | Osmotic coefficient testing device for concrete |
| CN203069485U (en) * | 2013-03-04 | 2013-07-17 | 黄河水利委员会黄河水利科学研究院 | Permeability coefficient testing device for plastic impervious wall |
| CN103207136A (en) * | 2013-03-19 | 2013-07-17 | 河海大学 | Device and method for measuring hydraulic permeability-electroosmosis coefficients |
| CN203083907U (en) * | 2013-01-30 | 2013-07-24 | 东南大学 | High-water-content soil and bentonite material penetration test cylinder and testing device |
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2014
- 2014-02-27 CN CN201410070582.0A patent/CN103926179A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204904U (en) * | 1985-11-12 | 1986-08-13 | 陕西机械学院 | Permeability testing instrument for bituminous concrete |
| CN2355005Y (en) * | 1998-05-05 | 1999-12-22 | 水利部天津水利水电勘测设计研究院勘察院 | Water supplier for osmotic deformation instrument |
| CN201348601Y (en) * | 2008-12-31 | 2009-11-18 | 长沙理工大学 | Pressure permeameter |
| CN102401778A (en) * | 2011-04-20 | 2012-04-04 | 河海大学 | Device and method for measuring swelling representation parameters of swelling soil |
| CN202256114U (en) * | 2011-10-27 | 2012-05-30 | 温文富 | Novel permeameter |
| CN202433284U (en) * | 2012-02-06 | 2012-09-12 | 新疆水利水电科学研究院 | Osmotic coefficient testing device for concrete |
| CN203083907U (en) * | 2013-01-30 | 2013-07-24 | 东南大学 | High-water-content soil and bentonite material penetration test cylinder and testing device |
| CN203069485U (en) * | 2013-03-04 | 2013-07-17 | 黄河水利委员会黄河水利科学研究院 | Permeability coefficient testing device for plastic impervious wall |
| CN103207136A (en) * | 2013-03-19 | 2013-07-17 | 河海大学 | Device and method for measuring hydraulic permeability-electroosmosis coefficients |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699269A (en) * | 2016-02-24 | 2016-06-22 | 哈尔滨工业大学 | Multi-directional constant-pressure asphalt mixture seepage testing device |
| CN105699269B (en) * | 2016-02-24 | 2018-07-03 | 哈尔滨工业大学 | The multidirectional constant pressure seepage flow test device of asphalt |
| CN106706501A (en) * | 2017-02-22 | 2017-05-24 | 中国水利水电科学研究院 | Expansive soil saturated water conduction coefficient determination system and method |
| CN106706501B (en) * | 2017-02-22 | 2019-03-01 | 中国水利水电科学研究院 | A kind of measurement system and method for dilative soil saturation coefficient of transmissibility |
| CN107589049A (en) * | 2017-08-02 | 2018-01-16 | 同济大学 | A kind of method and device for being used to determine cleaning agent diffusion coefficient in fouling membrane layer |
| CN107589049B (en) * | 2017-08-02 | 2020-01-10 | 同济大学 | Method and device for measuring diffusion coefficient of cleaning agent in membrane pollution layer |
| CN107807080A (en) * | 2017-10-12 | 2018-03-16 | 乔欢欢 | A kind of building wall seam repairs the impermeable detection means of pitch and its detection method |
| CN107843539A (en) * | 2017-12-13 | 2018-03-27 | 青岛理工大学 | A kind of ion penetration resistance of concrete measuring method |
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Application publication date: 20140716 |