CN108007842B - Tire seals concrete impermeability test device - Google Patents

Tire seals concrete impermeability test device Download PDF

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Publication number
CN108007842B
CN108007842B CN201711343699.1A CN201711343699A CN108007842B CN 108007842 B CN108007842 B CN 108007842B CN 201711343699 A CN201711343699 A CN 201711343699A CN 108007842 B CN108007842 B CN 108007842B
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China
Prior art keywords
bottom plate
die sleeve
tire
test specimen
sealed
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CN201711343699.1A
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CN108007842A (en
Inventor
吕云嵩
蒋平
翟金龙
王珂
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/0806Details, e.g. sample holders, mounting samples for testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/36Embedding or analogous mounting of samples
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample

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  • Chemical & Material Sciences (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)
  • Dispersion Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The present invention relates to a kind of tires to seal concrete impermeability test device, belongs to construction material detection technology field.Technical solution of the present invention includes die sleeve and bottom plate.The die sleeve is a hollow round table metal cylinder, and inner conical surface is equipped with twice undercut groove.Sealed tire is equipped in undercut groove.The periphery of die sleeve big end link flange and bottom plate sets bolt slot.Bottom plate is mounted on test table top.First test specimen is put on bottom plate when test, covers Upper Die-sleeve, then die sleeve and test specimen are fixed with tommyhead bolt, die sleeve is sealed with bottom plate faying face by sealing ring.It is allowed to expand to sealed tire charged pressure medium, test specimen is sealed with die sleeve sideshake, and sealed pressure water cavity is formed on test specimen bottom.Using this experimental rig, hollow seal tire flexibility is good, can guarantee sealing effect.When sealed tire pressure release, carcass is contracted in undercut groove under the action of support ring, almost without abrasion, and it is easy to operate simple, do not pollute.Test specimen and die sleeve can be carried individually, and die sleeve and bottom plate are fixed with tommyhead bolt, and it is time saving and energy saving to operate.

Description

Tire seals concrete impermeability test device
Technical field
The present invention relates to the concrete impervious experiments of architectural engineering, belong to construction material detection technology field.
Background technique
Currently, test specimen used in concrete impermeability test is mostly prefabricated path 175mm, major diameter 185mm, the reality of high 150mm Heart round estrade.Before test, first paraffin and rosin blend or the airtight and watertight paddings such as butter and talc mixture are heated and softened, It uniformly is applied to round estrade test specimen side, test specimen is then pressed into die sleeve with press.By dry solidification, test specimen is together with die sleeve quilt Testing stand is brought up to, is connected and fixed with screw.To guarantee to form reliable sealing between die sleeve and testing stand, every die sleeve must use 6 Attachment screw, there is 6 die sleeves on each rack, and fastening screw is all manual operations.Concrete sample is pressed into the entirety weight of die sleeve Amount is close to 15 kilograms, manual handling large labor intensity, and working efficiency is low.In addition paraffin can decomposite benzene, sweet smell during heating Etc. harmful substances.After test, die sleeve cleaning is also time-consuming.This experimental rig has not adapted to the need of building trade development It wants.
Summary of the invention
The present invention provides a kind of tire seal test device, it is characterized in that: it is to be bored using sealed tire sealed test piece side first Face channeling water gap, sealed reliable, structure is simple, and manufacturing cost is low, easy to operate and pollution-free.Followed by die sleeve tommyhead bolt It is fixed with test table top, every time when test dismounting die sleeve, it is not necessary to which the nut for removing tommyhead bolt can remove bolt, operate time saving It is laborsaving.
It includes die sleeve and bottom plate that tire, which seals concrete impermeability test device,.The die sleeve, which is one, has identical taper with test specimen Hollow round table metal cylinder.The internal diameter in any section of die sleeve corresponds to the outer diameter in section slightly larger than test specimen.Die sleeve is same with test specimen The heart is put and bottom surface is aligned, and has uniform unilateral gap between die sleeve and test specimen.The die sleeve inner wall is equipped with twice undercut groove, sinks Cut filling sealed tire in slot.Die sleeve big end outer rim is equipped with flange, and flange is circumferentially uniformly distributed several bolt slots.Bolt slot inner end is Semi-cylindrical, to external flange outer openings, bolt can be pushed into bolt slot inner end from opening.The bottom plate is flat for circular metal Plate, bottom plate upper end are equipped with closure gasket groove, and closure gasket groove and bottom plate outer circle are concentric.Filling sealed circle in closure gasket groove.The bottom plate On opened several tommyhead bolt slots, upper, wider notch passes through bottom plate upper and lower end face under the relatively narrow notch of tommyhead bolt slot It is logical.Tommyhead bolt slot is uniformly distributed circumferentially on bottom plate, and inner end is semi-cylindrical, is open to external plate outer side, bolt can Tommyhead bolt slot inner end is pushed into from plate outer side.The center of circle of tommyhead bolt slot inner end semi-cylindrical and die sleeve flange bolt slot semicolumn The center of circle in face distribution radius of circle having the same.The bottom plate is equipped with pipe screw thread through-hole at center, at close outer circle circumferentially It is evenly arranged bolt hole.
Die sleeve small end inner edge is equipped with limit shoulder, and interior circular diameter is less than test specimen end diameter.
The sealed tire is equivalent to hollow O shape sealing ring, and pressure medium is pumped into or is discharged sealed tire through interface.
The bottom plate is equipped with centering seam allowance.
The bottom plate upper surface is equipped with upper heavy mouth, and internal diameter is slightly larger than test specimen big end outer diameter, heavy mouth outer circle and bottom plate outer circle With one heart.Bottom plate lower end surface is equipped with sinking mouth.
Support ring is equipped in the tire, it uses elastic material, and exradius is equal to outside the die sleeve inner wall undercut groove Radius of circle is reduced expenditure pushing out ring section thickness.
Using the beneficial effects of the invention are as follows hollow seal tire flexibility is good, contact pressure is easy to control, and can guarantee to mix Solidifying soil test specimen sealing effect.When sealed tire pressure release, carcass is contracted in undercut groove under the action of support ring, between test specimen almost Without opposite interaction, long service life is easy to operate, and does not pollute.Test specimen and die sleeve can be carried individually, die sleeve and bottom plate It is fixed with tommyhead bolt, it is time saving and energy saving to operate.
Detailed description of the invention
Fig. 1 test specimen, experimental rig schematic front view
Fig. 2 test specimen, experimental rig schematic top plan view
Fig. 3 experimental rig left view schematic diagram
Fig. 4 bottom plate elevational schematic view
Fig. 5 sealed tire and connector schematic diagram
Fig. 6 die sleeve schematic diagram
Fig. 7 rack schematic front view
Fig. 8 rack schematic top plan view
In figure: 1. die sleeves, 2. sealed tires, 3. limit shoulders, 4. pipe screw thread through-holes, 5. test specimens, 6. gaps, 7. interfaces, 8. Sealing ring, 9. bottom plates, 10. bolts, 11. test table tops, 12.T shape bolt, 13. centering seam allowances, 14. support rings, 15. undercut grooves, 16. shoulder hole
Specific embodiment
Such as Fig. 1-Fig. 8, tire seals concrete impermeability test device, including die sleeve 1 and bottom plate 9.The die sleeve 1 be one with Test specimen 5 has the hollow round table metal cylinder of identical taper.The internal diameter in any section of die sleeve 1 is slightly larger than the corresponding section of test specimen 5 Outer diameter.It puts die sleeve 1 and test specimen 5 are concentric and bottom surface is aligned, there is uniform unilateral gap between die sleeve 1 and test specimen 5.The mould It covers 1 inner wall and is equipped with twice undercut groove, filling sealed tire 2 in undercut groove.1 big end outer rim of die sleeve is equipped with flange, and flange is circumferentially uniform It is distributed several bolt slots.Bolt slot inner end is semi-cylindrical, and to external flange outer openings, bolt can be pushed into bolt slot from opening Inner end.The bottom plate 9 is circular metal plate.9 upper end of bottom plate is equipped with closure gasket groove, and closure gasket groove and 9 outer circle of bottom plate are concentric.It is close Filling sealed circle 8 in seal ring slot.Opened several tommyhead bolt slots on the bottom plate 9, the relatively narrow notch of tommyhead bolt slot upper, compared with Wide notch penetrates through 9 upper and lower end face of bottom plate under.Tommyhead bolt slot is uniformly distributed circumferentially on bottom plate 9, and inner end is half Cylindrical surface, to external 9 outer openings of bottom plate, bolt can be pushed into tommyhead bolt slot inner end on the outside of bottom plate 9.Tommyhead bolt slot inner end half The center of circle on cylindrical surface and the center of circle distribution radius of circle having the same of 1 flange bolt slot semi-cylindrical of die sleeve.The bottom plate 9 is in The heart is equipped with pipe screw thread through-hole 4, is circumferentially being evenly arranged bolt hole at outer circle.The 1 small end inner edge of die sleeve is equipped with limit Shoulder 3, interior circular diameter are less than 5 end diameter of test specimen.After 5 lower end cut-in pressure water of test specimen, 5 lifting height of test specimen is by limiting Shoulder 3 limits.The sealed tire 2 is equivalent to hollow O shape sealing ring, and pressure medium is pumped into or is discharged through interface 7.Right figure in Fig. 5 The state of shown sealed tire inner cavity no pressure medium, the state of charged pressure medium shown in left figure.The bottom plate 9 is equipped with centering Seam allowance 13.9 upper surface of bottom plate is equipped with upper heavy mouth, and internal diameter is slightly larger than 5 big end outer diameter of test specimen, and heavy mouth outer circle and 9 outer circle of bottom plate are same The heart.9 lower end surface of bottom plate is equipped with sinking mouth.Support ring 14 is equipped in the sealed tire.Support ring 14 uses elastic material, outer circle Radius is equal to the die sleeve inner wall undercut groove exradius and reduces expenditure pushing out ring section thickness.Sealed tire inside support ring 14 acts on In when sealed tire not yet charged pressure medium, carcass can be close to described sink under the action of 14 elasticity tension of support ring and cut 15 bottom surface of slot avoids carcass from protruding from 1 bore area of die sleeve.
Test specimen 5 is placed on bottom plate 9, test specimen 5 should be fallen in centering seam allowance 13.By 1 set of die sleeve on test specimen 5, under die sleeve The alignment of end stand shoulder hole 16 centering seam allowance 13, such as Fig. 1, Fig. 6.In addition by the T shape spiral shell of bolt slot and bottom plate 9 on 1 flange of die sleeve Croze is circumferentially aligned.Tommyhead bolt 12 is pushed into tommyhead bolt slot inner end half from the outside of bottom plate 9, successively tightening nut.This original mold Set 1 is sealed with bottom plate 9 by sealing ring 8, forms seal chamber in 5 bottom of test specimen, while die sleeve 1 and test table top 11 are fixed.To close It seals tire 2 to inflate, fills out envelope test specimen sideshake.Inlet valve is opened, high pressure water flows into test piece lower part seal chamber from bottom plate water inlet, by regulation Time pressure maintaining.Observing test specimen upper surface, whether there is or not infiltrations, if there is infiltration to close inlet valve, stop test.

Claims (7)

1. tire seals concrete impermeability test device, it is characterised in that: including die sleeve (1) and bottom plate (9);The die sleeve (1) is One has the hollow round table metal cylinder of identical taper with test specimen (5);The internal diameter in die sleeve (1) any section is slightly larger than test specimen (5) outer diameter in corresponding section;It puts die sleeve (1) and test specimen (5) are concentric and bottom surface is aligned, has between die sleeve (1) and test specimen (5) Uniform unilateral gap;Die sleeve (1) inner wall is equipped with twice undercut groove (15), filling sealed tire (2) in undercut groove (15);Mould It covers (1) big end outer rim and is equipped with flange, flange is circumferentially uniformly distributed several bolt slots;Bolt slot inner end is semi-cylindrical, to external Flange outer openings, bolt can be pushed into bolt slot inner end from opening;The bottom plate (9) is circular metal plate;Bottom plate (9) upper end Equipped with closure gasket groove, closure gasket groove and bottom plate (9) outer circle are concentric;Filling sealed circle (8) in closure gasket groove;On the bottom plate (9) Several tommyhead bolt slots are opened, the relatively narrow notch of tommyhead bolt slot is upper, and wider notch is under, by bottom plate (9) upper and lower end face Perforation;Tommyhead bolt slot is uniformly distributed circumferentially on bottom plate (9), and inner end is semi-cylindrical, is opened to external bottom plate (9) outside Mouthful, bolt can be pushed into tommyhead bolt slot inner end on the outside of bottom plate (9);The center of circle and die sleeve (1) of tommyhead bolt slot inner end semi-cylindrical The center of circle of flange bolt slot semi-cylindrical distribution radius of circle having the same;The bottom plate (9) is equipped with pipe screw thread through-hole at center (4), bolt hole is circumferentially being evenly arranged at outer circle.
2. tire seals concrete impermeability test device according to claim 1, it is characterised in that: in die sleeve (1) small end Edge is equipped with limit shoulder (3), and interior circular diameter is less than test specimen (5) end diameter.
3. tire seals concrete impermeability test device according to claim 1, it is characterised in that: the sealed tire (2) is suitable In hollow O shape sealing ring, pressure medium is pumped into or is discharged through interface (7).
4. tire seals concrete impermeability test device according to claim 1, it is characterised in that: the bottom plate (9) is equipped with It feels relieved seam allowance (13);Shoulder hole is set on the die sleeve (1).
5. tire seals concrete impermeability test device according to claim 1, it is characterised in that: bottom plate (9) upper surface is equipped with Upper heavy mouth, internal diameter are slightly larger than test specimen (5) big end outer diameter, and heavy mouth outer circle and bottom plate (9) outer circle are concentric.
6. tire seals concrete impermeability test device according to claim 3, it is characterised in that: set in the sealed tire (2) There are support ring (14).
7. tire seals concrete impermeability test device according to claim 6, it is characterised in that: the support ring (14) uses Elastic material, exradius are equal to die sleeve inner wall undercut groove (15) exradius and reduce expenditure pushing out ring section thickness.
CN201711343699.1A 2017-12-11 2017-12-11 Tire seals concrete impermeability test device Active CN108007842B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109060636A (en) * 2018-09-19 2018-12-21 江门市建联检测有限公司 A kind of concrete impervious test equipment
CN109946213B (en) * 2019-04-02 2021-09-14 东通岩土科技股份有限公司 Cement soil infiltration equipment and infiltration test method
CN110487702A (en) * 2019-09-06 2019-11-22 江苏建仪测试仪器有限公司 A kind of high pressure sealing pressurizing unit
CN111175210B (en) * 2019-12-31 2023-05-23 中交二航局建筑科技有限公司 Method for rapidly sealing mortar impervious test piece

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201107312Y (en) * 2007-07-20 2008-08-27 王志云 Impervious test machine
CN101358916B (en) * 2008-09-09 2011-05-11 同济大学 Concrete permeameter under loading action
CN201795981U (en) * 2010-08-30 2011-04-13 中冶天工上海十三冶建设有限公司 Concrete anti-seepage test piece sleeve with sealing device
CN202402646U (en) * 2011-11-23 2012-08-29 王曦 Oil sac fastened-type sealing structure of penetration-resistance testing machine test-piece
CN102435542A (en) * 2011-11-23 2012-05-02 王曦 Full-automatic mould-pressing demoulding penetration resistant testing machine
CN105606411A (en) * 2014-11-18 2016-05-25 葛洲坝集团试验检测有限公司 Concrete impermeability test sealing apparatus
CN206258352U (en) * 2016-11-21 2017-06-16 深圳市振惠建混凝土有限公司 Concrete impervious instrument and its die trial
CN207923672U (en) * 2017-12-11 2018-09-28 南京工程学院 A kind of tire sealing concrete impermeability test device

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