CN204705572U - A kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle - Google Patents
A kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle Download PDFInfo
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- CN204705572U CN204705572U CN201520444932.5U CN201520444932U CN204705572U CN 204705572 U CN204705572 U CN 204705572U CN 201520444932 U CN201520444932 U CN 201520444932U CN 204705572 U CN204705572 U CN 204705572U
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- steel plate
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- injection pipe
- measurement
- adhesive surface
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Abstract
The utility model discloses a kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle, comprise water injection pipe, seal plate, measurement steel plate, metal probe, connecting line and loop resistance measurement instrument, described water injection pipe bottom is connected with measurement Interal fixation by draw-in groove, seal plate is located on water injection pipe by circle hole sleeve, the surface of measurement steel plate also offers two row height same via, metal probe is fastened in through hole by insulating material, and two metal probes on sustained height and loop resistance measurement instrument connect into loop; The utility model make use of resistance change between one group of metal probe on sustained height to determine length of penetration, and the more accurate infiltration coefficient scope having measured steel plate concrete adhesive surface, compared with existing measuring method, both saved time, laborsaving again; Secondly, the measurement mechanism structure that the utility model adopts is simple, and cheap, has greatly saved production cost and the maintenance cost of measurement mechanism.
Description
Technical field
The utility model relates to building trade adhesive surface gas permeability measurement field, particularly relates to a kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle.
Background technology
along with the development of society, steel plate concrete structure receives to be applied more and more widely, as the structure that building trade is conventional, the penetration degree of steel plate concrete adhesive surface just seems particularly important, evaluate the impervious degree of adhesive surface and whether reach the measurement that calibration method is exactly the infiltration coefficient to adhesive surface, if the infiltration coefficient recorded meets the demands, we just say that tested steel plate concrete adhesive surface infiltration coefficient is up to standard; Measurement classic method for adhesive surface infiltration coefficient in prior art has chloride permeability method, gas osmosis etc., Foreign Epidemic have direct current measurement and air permeability method etc.; But traditional measurement mechanism complex structure, Measuring Time are grown and troublesome poeration; Traditional measuring method such as chloride permeability method etc. may change concrete properties in addition in measuring process, thus causes measurement result can not react real adhesive surface infiltration coefficient.
Utility model content
The utility model discloses a kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle, in order to solve prior art light plate concrete binding face apparatus for measuring permeability coefficient complex structure, Measuring Time is grown and the problem of troublesome poeration.
In order to solve the problem, the utility model by the following technical solutions:
A kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle, comprise water injection pipe, seal plate, measure steel plate, metal probe, connecting line and loop resistance measurement instrument, the tube wall of described water injection pipe bottom offers and the draw-in groove measured steel plate and match, water injection pipe bottom is connected with measurement Interal fixation by draw-in groove, the position that measurement steel plate upper end is connected with water injection pipe offers arc notch, the height value of arc notch is not less than the depth value of water injection pipe bottom draw-in groove, the width value of arc notch is not more than the external diameter value of water injection pipe, seal plate offers circular hole, the internal diameter of circular hole and the external diameter of water injection pipe match, seal plate to be located on water injection pipe by circle hole sleeve and seal plate lower surface presses and measures steel plate upper end, the surface of measurement steel plate also vertically offers two row height same via, two row through holes are opened in immediately below water injection pipe, the internal diameter of through hole and the external diameter of metal probe match, metal probe is fastened in through hole and probe two ends by insulating material and reaches measurement steel plate outside, two metal probes on sustained height connect into a loop by connecting line and external loop resistance measurement instrument.
Described water injection pipe adopts weldless steel tube, and described seal plate adopts steel plate to make.
The height that in two row through holes, two through holes of the top are offered on measurement steel plate is identical with the height of water injection pipe lower end.
In two row through holes, the distance between two neighbouring through holes is identical, and the distance between two through holes on sustained height is identical.
Described metal probe is made up of the metal material with electric conductivity.
Described insulating material is rubber plug, and the external diameter of rubber plug and the internal diameter of through hole match, and the center of rubber plug offers the probe aperture matched with metal probe.
All connecting lines of two metal probes on sustained height are all arranged on the opposite side measuring steel plate, and all connecting lines are bundled into a bundle along direction straight up.
First, the utility model make use of resistance change between one group of metal probe on sustained height to determine the scope of length of penetration, simple to operate, convenient and swift, and in the error range that modern construction technique allows, the more accurate infiltration coefficient having measured steel plate concrete adhesive surface, compared with existing measuring method, both saved time, laborsaving again; Secondly, the measurement mechanism structure that the utility model adopts is simple, and cheap, has greatly saved production cost and the maintenance cost of measurement mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of water injection pipe described in the utility model;
Fig. 3 is the structural representation of seal plate described in the utility model;
Fig. 4 is the structural representation of measurement steel plate described in the utility model.
Embodiment
As Figure 1-4, a kind of steel plate concrete adhesive surface infiltration coefficient described in the utility model measurement mechanism among a small circle, comprises water injection pipe 1, measures steel plate 4, seal plate 2, metal probe, connecting line and loop resistance measurement instrument, described water injection pipe 1 adopts weldless steel tube to make, ensure that quality and the safety of water injection pipe 1, prevent from leaking because water injection pipe 1 breaks and impacting measurement and damage staff, the tube wall of simultaneously water injection pipe 1 bottom also offers and the draw-in groove 6 measured steel plate 4 and match, water injection pipe 1 bottom is welded with measuring after steel plate 4 is fixedly connected with by draw-in groove 6, the material measuring steel plate 4 is identical with needing the material of the steel plate measured in engineering, and measure the position that steel plate 4 upper end is connected with water injection pipe 1 and also offer arc notch 3, the height value of arc notch 3 is not less than the depth value of water injection pipe 1 bottom draw-in groove 6, this just can ensure the current that flow out in water injection pipe 1 can not the stop of tested dimension plate 4 directly dirty, simultaneously, the width value of arc notch 3 is not more than the external diameter value of water injection pipe 1, to ensure that water injection pipe 1 can be connected to the upper end measuring steel plate 4, described seal plate 2 is also formed from steel and seal plate 2 central authorities offer circular hole 7, the internal diameter of circular hole 7 and the external diameter of water injection pipe 1 match, the water injected to prevent water injection pipe 1 from water injection pipe 1 externally to upper infiltration, affect measurement result, seal plate 2 need be set on water injection pipe 1 by circular hole 7, seal plate 2 to be welded on water injection pipe 1 by circular hole 7 and the lower surface of seal plate 2 is welded on the upper end measuring steel plate 4, and above-mentioned weld does not all seep water, the surface of measurement steel plate 4 also vertically offers two row height same via 5, two through holes 5 on sustained height are one group, the height that in two row through holes 5, one group of through hole 5 of the top is offered on measurement steel plate 4 is identical with the height of water injection pipe 1 lower end, to facilitate the height at one group of metal probe place topmost as reference height, two row through holes 5 are opened in immediately below water injection pipe 1, the internal diameter of through hole 5 and the external diameter of metal probe match, metal probe to be fastened in through hole 5 by insulating material and probe two ends reach steel plate outside, described insulating material is preferably rubber plug, the external diameter of rubber plug and the internal diameter of through hole 5 match, the center of rubber plug offers the probe aperture matched with metal probe, metal probe is fastened on by rubber plug to be measured on steel plate 4, metal probe can be ensured like this and measure insulativity good between steel plate 4, enhance the accuracy of measurement result, metal probe adopts the metal material with electric conductivity to make, preferred material is copper, one group of metal probe on sustained height connects into a loop by connecting line and external loop resistance measurement instrument, in two row metal probes, the number of the metal probe of each row is not less than 8, preferred version is 15, simultaneously, distance between upper and lower two metal probes equal and, be 4 ~ 5mm, often the distance organized between metal probe is 5mm, because under construction technology of the prior art, the infiltration coefficient of steel plate concrete adhesive surface is all very little, so row arrange 15 metal probes, the spacing of upper and lower two groups of metal probes is the length of penetration within 4mm just can detect 60mm, test request can be met, because metal probe is more, so affect the measurement result of infiltration coefficient in order to avoid the appearance of connecting line, all connecting lines are all arranged on the same side measuring steel plate, and all connecting lines are bundled into a bundle along direction straight up.
When using the infiltration coefficient of the utility model to steel plate concrete adhesive surface to measure, first the steel plate suitable with the identical block size of the steel plate material needing to measure is got as measuring steel plate 4 and connecting measurement mechanism on request, secondly measurement mechanism is put into concrete test die, detected concrete is poured into a mould again in die trial, after requiring to have built concrete, the upper end of water injection pipe 1 is exposed, then natural curing is carried out, centre is not torn open and is touched, after concrete meets the requirements of intensity, in water injection pipe 1, the certain water of head height is injected by water injection pipe 1 upper end, preferred version is can will add a small amount of electrolyte in water, as sodium chloride etc., to strengthen the electric conductivity of water, make measurement result more accurate, water injection time is 8 hours, long water filling can ensure that length of penetration reaches capacity position, the infiltration coefficient of steel plate concrete adhesive surface is finally calculated according to length of penetration method computing formula, the computing formula of length of penetration method is:
，
In formula,
kpfor infiltration coefficient,
hfor length of penetration,
vfor concrete pore rate,
tfor water injection time,
Δ pfor head height;
Length of penetration
hresistance variations according to loop resistance measurement instrument is determined, before water filling, insulation between metal probe and measurement steel plate 4, the resistance that loop resistance measurement instrument display panel shows is for infinitely great, after water filling, due to the infiltration of water, resistance between mutually level two metal probes is caused to change, on loop resistance measurement instrument display panel respective heights two metal probes between resistance will obviously diminish, using the height value of water injection pipe 1 lower end as reference height value, observation loop resistance measurement instrument panel is often organized the resistance variations between metal probe, easily can measure length of penetration
h, the distance such as between upper and lower two metal probes is 3mm, and the measurement result of observing loop resistance measurement instrument knows that the resistance from top to bottom between the 10th metal probe obviously reduces, and the resistance still infinity between the 11st metal probe, then show length of penetration
hvalue between 30mm and 33mm, by the infiltration water degree of depth
hvalue substitute into length of penetration method computing formula, the scope that of tested steel plate concrete adhesive surface infiltration coefficient is less can be obtained.
First, the utility model make use of resistance change between one group of metal probe on sustained height to determine the scope of length of penetration, simple to operate, convenient and swift, and in the error range that modern construction technique allows, the more accurate infiltration coefficient scope having measured steel plate concrete adhesive surface, compared with existing measuring method, both saved time, laborsaving again; Secondly, the measurement mechanism structure that the utility model adopts is simple, and cheap, has greatly saved production cost and the maintenance cost of measurement mechanism.
Claims (7)
1. steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle, it is characterized in that: comprise water injection pipe, seal plate, measure steel plate, metal probe, connecting line and loop resistance measurement instrument, the tube wall of described water injection pipe bottom offers and the draw-in groove measured steel plate and match, water injection pipe bottom is connected with measurement Interal fixation by draw-in groove, the position that measurement steel plate upper end is connected with water injection pipe offers arc notch, the height value of arc notch is not less than the depth value of water injection pipe bottom draw-in groove, the width value of arc notch is not more than the external diameter value of water injection pipe, seal plate offers circular hole, the internal diameter of circular hole and the external diameter of water injection pipe match, seal plate to be located on water injection pipe by circle hole sleeve and seal plate lower surface presses and measures steel plate upper end, the surface of measurement steel plate also vertically offers two row height same via, two row through holes are opened in immediately below water injection pipe, the internal diameter of through hole and the external diameter of metal probe match, metal probe is fastened in through hole and probe two ends by insulating material and reaches measurement steel plate outside, two metal probes on sustained height connect into a loop by connecting line and external loop resistance measurement instrument.
2. a kind of steel plate concrete adhesive surface infiltration coefficient according to claim 1 measurement mechanism among a small circle, is characterized in that: described water injection pipe adopts weldless steel tube, and described seal plate adopts steel plate to make.
3. a kind of steel plate concrete adhesive surface infiltration coefficient according to claim 1 measurement mechanism among a small circle, is characterized in that: the height that in two row through holes, two through holes of the top are offered on measurement steel plate is identical with the height of water injection pipe lower end.
4. a kind of steel plate concrete adhesive surface infiltration coefficient according to claim 1 measurement mechanism among a small circle, it is characterized in that: in two row through holes, the distance between two neighbouring through holes is identical, and the distance between two through holes on sustained height is identical.
5. a kind of steel plate concrete adhesive surface infiltration coefficient according to claim 1 measurement mechanism among a small circle, is characterized in that: described metal probe is made up of the metal material with electric conductivity.
6. a kind of steel plate concrete adhesive surface infiltration coefficient according to claim 1 measurement mechanism among a small circle, it is characterized in that: described insulating material is rubber plug, the external diameter of rubber plug and the internal diameter of through hole match, and the center of rubber plug offers the probe aperture matched with metal probe.
7. a kind of steel plate concrete adhesive surface infiltration coefficient according to claim 1 measurement mechanism among a small circle, it is characterized in that: all connecting lines of two metal probes on sustained height are all arranged on the opposite side measuring steel plate, and all connecting lines are bundled into a bundle along direction straight up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520444932.5U CN204705572U (en) | 2015-06-25 | 2015-06-25 | A kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle |
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| CN201520444932.5U CN204705572U (en) | 2015-06-25 | 2015-06-25 | A kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle |
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| CN201520444932.5U Expired - Fee Related CN204705572U (en) | 2015-06-25 | 2015-06-25 | A kind of steel plate concrete adhesive surface infiltration coefficient measurement mechanism among a small circle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856028A (en) * | 2019-01-29 | 2019-06-07 | 同济大学 | Clay mineral saturation permeability coefficient prediction technique in a kind of electrolyte solution |
| CN113848035A (en) * | 2021-09-17 | 2021-12-28 | 中国石油大学(华东) | Multifunctional jet flow generation test equipment |
-
2015
- 2015-06-25 CN CN201520444932.5U patent/CN204705572U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856028A (en) * | 2019-01-29 | 2019-06-07 | 同济大学 | Clay mineral saturation permeability coefficient prediction technique in a kind of electrolyte solution |
| CN113848035A (en) * | 2021-09-17 | 2021-12-28 | 中国石油大学(华东) | Multifunctional jet flow generation test equipment |
| CN113848035B (en) * | 2021-09-17 | 2023-12-05 | 中国石油大学(华东) | Multifunctional jet flow generation test equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20170625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |