CN110031380A - A kind of method of scene nondestructive measurement celluar concrete infiltration rate - Google Patents
A kind of method of scene nondestructive measurement celluar concrete infiltration rate Download PDFInfo
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- CN110031380A CN110031380A CN201910422625.XA CN201910422625A CN110031380A CN 110031380 A CN110031380 A CN 110031380A CN 201910422625 A CN201910422625 A CN 201910422625A CN 110031380 A CN110031380 A CN 110031380A
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- vertical tube
- water
- infiltration
- interior
- infiltration rate
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- 230000008595 infiltration Effects 0.000 title claims abstract description 35
- 238000001764 infiltration Methods 0.000 title claims abstract description 35
- 239000004567 concrete Substances 0.000 title claims abstract description 34
- 238000005259 measurement Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000011381 foam concrete Substances 0.000 claims description 15
- 230000035699 permeability Effects 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 239000002352 surface water Substances 0.000 claims description 2
- 230000001066 destructive effect Effects 0.000 claims 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of methods of live nondestructive measurement celluar concrete infiltration rate, are related to celluar concrete technical field, include the following steps that (1) vertical tube is installed；(2) leak check；(3) water level, time measurement；(4) infiltration rate determines.The present invention can be achieved live quick nondestructive and measure celluar concrete infiltration rate, improve the efficiency and precision of in-site measurement, save measurement cost.
Description
Technical field
The present invention relates to celluar concrete technical fields, and in particular to a kind of scene of celluar concrete infiltration rate is lossless
Measurement method.
Background technique
Infiltration rate is one of important performance indexes of celluar concrete.In celluar concrete use process, impurity is stifled
Consent gap can be substantially reduced its infiltration coefficient, influence service performance.It is live quickly to determine water permeability to the dimension of celluar concrete
Shield maintenance is significant.The measurement of celluar concrete water permeability has two class method of coring and in-site measurement.Coring measurement at
This height, low efficiency, and can have an adverse effect to concrete structure, the multiple measurement not being suitable for during maintenance.It is existing
Some on-site measurement method low measurement accuracy, horizontal and vertical infiltration rate are difficult to measure respectively.
Summary of the invention
The present invention provides a kind of method of celluar concrete scene infiltration rate measurement, and measurement fast results are accurate and right
Celluar concrete does not damage, and progress can be repeated several times.
To achieve the above object, the technical solution adopted by the present invention are as follows:
1. a kind of method of scene nondestructive measurement celluar concrete infiltration rate, which comprises the following steps:
(1) vertical tube is installed
Centered on measurement point, the hollow vertical tube of different-diameter is fixed respectively by concentric mode with glue.
(2) leak check
Before permeability test, it should be ensured that vertical tube and cellular concrete surface contact position good seal, no drainage.If having
Leakage, then must spreading glue again, until good seal.
(3) water level, time measurement
Vernier caliper is placed in interior vertical tube.A certain amount of water is injected in interior vertical tube, records time t respectively as needed1, t2
When interior vertical tube in water surface elevation h1, h2.It in measurement process, is filled the water in outer vertical tube with constant flow rate, guarantees that water level is permanent in outer vertical tube
Fixed, water body, which only occurs vertically to permeate, in guarantee celluar concrete does not occur horizontal infiltration.
(4) infiltration rate determines
Wherein, vertical tube is without top, bottomless, hollow plastic tube in the step (1).Outer stack diameter is recommended in 300-
Between 600mm, it can be adjusted according to different aggregate sizes.Interior stack diameter is the half of outer stack diameter.
Wherein, in the step (2) leak check method are as follows:
(1) inwardly in vertical tube injection certain altitude water, after the completion of infiltration in the outer vertical tube of observation cellular concrete surface without
Water stain, then interior vertical tube leakproofness is good；If it is water stain to observe that concrete surface occurs, there is leakage in interior vertical tube junction.
(2) after cellular concrete surface is dry in interior vertical tube, the water of certain altitude is injected in outer vertical tube, after the completion of infiltration
Cellular concrete surface and the equal water stain-free of the outer cellular concrete surface of outer vertical tube in interior vertical tube are observed, then outer vertical tube leakproofness is good
It is good.If it is water stain to observe that concrete surface occurs, there is leakage in outer vertical tube junction.
Wherein, in the step (3), water injection rate can be according to water amount required in celluar concrete use process in interior vertical tube
It determines；It is described record data time interval can according to the observation water level decreasing speed determine.
Wherein, in the step (4), the determination of infiltration rate can results are averaged or many according to multiple permeability test
Number.
The utility model has the advantages that
1. the being sealed property inspection of the invention before permeability test starts effectively reduces vertical tube and celluar concrete contact
The measurement error that face leakage generates.
2. the present invention reduces influence of the horizontal infiltration to measurement result, improves using the hydraulic pressure of constant water level in outer vertical tube
Measurement accuracy.
3. live quick, multiple, nondestructive measurement can be achieved in the present invention, cost is reduced, accidental error is reduced.
Specific embodiment
Present invention will be further explained below with reference to specific examples.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment
A kind of method of scene nondestructive measurement celluar concrete infiltration rate, which comprises the following steps:
(1) vertical tube is installed
Centered on measurement point, the hollow vertical tube of different-diameter is fixed respectively by concentric mode with glue.
(2) leak check
Before permeability test, it should be ensured that vertical tube and cellular concrete surface contact position good seal, no drainage.If having
Leakage, then must spreading glue again, until good seal.
(3) water level, time measurement
Vernier caliper is placed in interior vertical tube.The water of about 5.4L is injected in interior vertical tube, as needed respectively record time 5s and
Water surface elevation 273.2mm and 102.0mm when 125s in interior vertical tube.It in measurement process, is filled the water, is protected with constant flow rate in outer vertical tube
Constant level in outer vertical tube is demonstrate,proved, water body, which only occurs vertically to permeate, in guarantee celluar concrete does not occur horizontal infiltration.
(4) infiltration rate determines
Wherein, vertical tube is without top, bottomless, hollow plastic tube in the step (1).Outer stack diameter is 300mm, interior perpendicular
Pipe diameter is 150mm, the high 300mm of vertical tube.
Wherein, in the step (2) leak check method are as follows:
(1) water is inwardly filled in vertical tube, cellular concrete surface water stain-free in the outer vertical tube of observation, then interior perpendicular after the completion of infiltration
Composite pipe tightness is good；If it is water stain to observe that concrete surface occurs, there is leakage in interior vertical tube junction.
(2) after cellular concrete surface is dry in interior vertical tube, water is filled in outer vertical tube, interior vertical tube is observed after the completion of infiltration
Interior cellular concrete surface and the equal water stain-free of the outer cellular concrete surface of outer vertical tube, then outer vertical tube leakproofness is good.If observing
Concrete surface appearance is water stain, then there is leakage in outer vertical tube junction.
Wherein, in the step (3), water injection rate can be according to water amount required in celluar concrete use process in interior vertical tube
It determines；It is described record data time interval can according to the observation water level decreasing speed determine.
Wherein, in the step (4), measurement point has carried out the test of 4 sub-percolations, and infiltration rate is respectively 514cm/h,
531cm/h, 520cm/h, 497cm/h finally determine that the infiltration rate is 515cm/h.
Claims (5)
1. a kind of method of scene nondestructive measurement celluar concrete infiltration rate, which comprises the following steps:
(1) vertical tube is installed
Centered on measurement point, the hollow vertical tube of different-diameter is fixed respectively by concentric mode with glue.
(2) leak check
Before permeability test, it should be ensured that vertical tube and cellular concrete surface contact position good seal, no drainage.If there is infiltration
Leakage, then must spreading glue again, until good seal.
(3) water level, time measurement
Vernier caliper is placed in interior vertical tube.A certain amount of water is injected in interior vertical tube, records time t respectively as needed1, t2When it is interior
Water surface elevation h in vertical tube1, h2.It in measurement process, is filled the water in outer vertical tube with constant flow rate, guarantees constant level in outer vertical tube,
Water body, which only occurs vertically to permeate, in guarantee celluar concrete does not occur horizontal infiltration.
(4) infiltration rate determines
2. a kind of live non-destructive measuring method of celluar concrete infiltration rate according to claim 1, which is characterized in that
Vertical tube is without top, bottomless, hollow plastic tube in the step (1).Outer stack diameter is recommended between 300-600mm, can root
It is adjusted according to different aggregate sizes.Interior stack diameter is the half of outer stack diameter.
3. a kind of live non-destructive measuring method of celluar concrete infiltration rate according to claim 1, which is characterized in that
The method of leak check in the step (2) are as follows:
(1) water that certain altitude is inwardly injected in vertical tube, cellular concrete surface water stain-free in the outer vertical tube of observation after the completion of infiltration,
Then interior vertical tube leakproofness is good；If it is water stain to observe that concrete surface occurs, there is leakage in interior vertical tube junction.
(2) after cellular concrete surface is dry in interior vertical tube, the water of certain altitude is injected in outer vertical tube, is observed after the completion of infiltration
Cellular concrete surface and the equal water stain-free of the outer cellular concrete surface of outer vertical tube in interior vertical tube, then outer vertical tube leakproofness is good.If
It is water stain to observe that concrete surface occurs, then there is leakage in outer vertical tube junction.
4. a kind of live non-destructive measuring method of celluar concrete infiltration rate according to claim 1, which is characterized in that
In the step (3), water injection rate can be determined according to water amount required in celluar concrete use process in interior vertical tube；The record
The time interval of data can according to the observation water level decreasing speed determine.
5. a kind of live non-destructive measuring method of celluar concrete infiltration rate according to claim 1, which is characterized in that
In the step (4), infiltration rate determination can results are averaged or mode according to multiple permeability test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422625.XA CN110031380A (en) | 2019-05-21 | 2019-05-21 | A kind of method of scene nondestructive measurement celluar concrete infiltration rate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422625.XA CN110031380A (en) | 2019-05-21 | 2019-05-21 | A kind of method of scene nondestructive measurement celluar concrete infiltration rate |
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| CN110031380A true CN110031380A (en) | 2019-07-19 |
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| CN201910422625.XA Pending CN110031380A (en) | 2019-05-21 | 2019-05-21 | A kind of method of scene nondestructive measurement celluar concrete infiltration rate |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2576414A1 (en) * | 1985-01-18 | 1986-07-25 | Rech Geolog Miniere | Apparatus for measuring the permeability of ground and more particularly formations with very low permeability, of the double ring type |
| CN201561922U (en) * | 2009-12-07 | 2010-08-25 | 长沙理工大学 | In situ precision control permeameter |
| CN102435540A (en) * | 2011-10-31 | 2012-05-02 | 河海大学 | Shallow sand permeability coefficient measuring system and method |
| CN202793989U (en) * | 2012-09-23 | 2013-03-13 | 西安科技大学 | Light constant head permeameter for porous concrete |
| CN202793990U (en) * | 2012-09-23 | 2013-03-13 | 西安科技大学 | Constant head multihole concrete penetrometer |
| CN106769761A (en) * | 2016-12-14 | 2017-05-31 | 镇江市建科工程质量检测中心有限公司 | A kind of method and device of in-site measurement pervious concrete infiltration coefficient |
| CN107340215A (en) * | 2016-12-26 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of test device and method of testing for testing pervious concrete pavement coefficient of permeability |
| CN206671143U (en) * | 2017-05-05 | 2017-11-24 | 中国地质调查局南京地质调查中心 | A kind of full-automatic double-ring infiltration instrument |
| CN107764713A (en) * | 2017-09-19 | 2018-03-06 | 刘学浩 | The home position testing method of range-adjustable double-ring infiltration device and soil permeability coefficient |
| CN207379886U (en) * | 2017-09-19 | 2018-05-18 | 刘学浩 | Discrete range-adjustable double-ring infiltration device |
| CN207528604U (en) * | 2017-12-11 | 2018-06-22 | 广西壮族自治区水利科学研究院 | One kind is planted raw eco-concrete device for determining permeation coefficient |
| CN207557065U (en) * | 2017-12-21 | 2018-06-29 | 山东大学 | A kind of porous pavement infiltration coefficient in situ detection instrument |
| CN109342286A (en) * | 2018-09-17 | 2019-02-15 | 北京市水科学技术研究院 | A kind of permeable pavement ground water permeability on-the-spot test method and device |
| WO2019033467A1 (en) * | 2017-08-16 | 2019-02-21 | 刘学浩 | Range-adjustable dual-ring infiltration apparatus and in-situ testing method for soil permeability coefficient |
-
2019
- 2019-05-21 CN CN201910422625.XA patent/CN110031380A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2576414A1 (en) * | 1985-01-18 | 1986-07-25 | Rech Geolog Miniere | Apparatus for measuring the permeability of ground and more particularly formations with very low permeability, of the double ring type |
| CN201561922U (en) * | 2009-12-07 | 2010-08-25 | 长沙理工大学 | In situ precision control permeameter |
| CN102435540A (en) * | 2011-10-31 | 2012-05-02 | 河海大学 | Shallow sand permeability coefficient measuring system and method |
| CN202793989U (en) * | 2012-09-23 | 2013-03-13 | 西安科技大学 | Light constant head permeameter for porous concrete |
| CN202793990U (en) * | 2012-09-23 | 2013-03-13 | 西安科技大学 | Constant head multihole concrete penetrometer |
| CN106769761A (en) * | 2016-12-14 | 2017-05-31 | 镇江市建科工程质量检测中心有限公司 | A kind of method and device of in-site measurement pervious concrete infiltration coefficient |
| CN107340215A (en) * | 2016-12-26 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of test device and method of testing for testing pervious concrete pavement coefficient of permeability |
| CN206671143U (en) * | 2017-05-05 | 2017-11-24 | 中国地质调查局南京地质调查中心 | A kind of full-automatic double-ring infiltration instrument |
| WO2019033467A1 (en) * | 2017-08-16 | 2019-02-21 | 刘学浩 | Range-adjustable dual-ring infiltration apparatus and in-situ testing method for soil permeability coefficient |
| CN107764713A (en) * | 2017-09-19 | 2018-03-06 | 刘学浩 | The home position testing method of range-adjustable double-ring infiltration device and soil permeability coefficient |
| CN207379886U (en) * | 2017-09-19 | 2018-05-18 | 刘学浩 | Discrete range-adjustable double-ring infiltration device |
| CN207528604U (en) * | 2017-12-11 | 2018-06-22 | 广西壮族自治区水利科学研究院 | One kind is planted raw eco-concrete device for determining permeation coefficient |
| CN207557065U (en) * | 2017-12-21 | 2018-06-29 | 山东大学 | A kind of porous pavement infiltration coefficient in situ detection instrument |
| CN109342286A (en) * | 2018-09-17 | 2019-02-15 | 北京市水科学技术研究院 | A kind of permeable pavement ground water permeability on-the-spot test method and device |
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Application publication date: 20190719 |
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