CN105445176B - One kind having concrete durability evaluation appts in the case of pressure - Google Patents

One kind having concrete durability evaluation appts in the case of pressure Download PDF

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Publication number
CN105445176B
CN105445176B CN201510933821.5A CN201510933821A CN105445176B CN 105445176 B CN105445176 B CN 105445176B CN 201510933821 A CN201510933821 A CN 201510933821A CN 105445176 B CN105445176 B CN 105445176B
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CN
China
Prior art keywords
pressure
weight bearing
penetrating fluid
horizontally
test specimen
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Expired - Fee Related
Application number
CN201510933821.5A
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Chinese (zh)
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CN105445176A (en
Inventor
韩亚平
赵高文
石美
穆建勃
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Yulin University
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Yulin University
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Priority to CN201510933821.5A priority Critical patent/CN105445176B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56Investigating resistance to wear or abrasion

Abstract

The invention discloses one kind have pressure in the case of concrete durability evaluation appts, purpose is, really it has been reflected in pressure ring border, the infiltration of aggressive liquids influences the intensity of concrete and deformation, used technical solution are as follows: including horizontally disposed pedestal (1), the test piece box (2) for placing test specimen is provided on pedestal (1), the side of test piece box (2) offers penetrating fluid outlet (3), the top surface of test piece box (2) is equipped with opening, pressure assembly (5) are provided in opening, pressure assembly (5) is connected with support component (6) and weight bearing component (7);Load can be transmitted to the upper surface of test specimen by pressure assembly (5) by weight bearing component (7), and the upper surface of test specimen is marked with penetrating fluid when test.

Description

One kind having concrete durability evaluation appts in the case of pressure
Technical field
The invention belongs to soil test technique fields, and in particular to one kind has concrete durability evaluation instrument in the case of pressure Device.
Background technique
At present for there is the infiltration of aggressive liquids under pressure condition on the measurement of the intensity of concrete and deformation influence Testing equipment and method for measurement are more extensive, and acquired results are difficult to really reflect under different pressured states, aggressive liquids Infiltration is to the deformation of concrete and the influence of intensity.
Summary of the invention
In order to solve the problems in the prior art, the present invention proposes that one kind can be really reflected in pressure ring border, corrodes Property liquid infiltration on the intensity of concrete and deformation influence have pressure in the case of concrete durability evaluation appts.
In order to achieve the goal above, the technical scheme adopted by the invention is as follows: including horizontally disposed pedestal, set on pedestal It is equipped with the test piece box for placing test specimen, the side of test piece box offers penetrating fluid outlet, and the top surface of test piece box is equipped with opening, opens Pressure assembly is provided on mouthful, pressure assembly is connected with support component and weight bearing component;The weight bearing component can lead to load Cross the upper surface that pressure assembly is transmitted to test specimen, the upper surface of test specimen is marked with penetrating fluid when test.
The pressure assembly includes that the pressure plate of test piece box top surface opening is arranged in, and pressure plate and test specimen is upper when test Surface contact, pressure plate are connected with the pressure bar being vertically arranged;The support component includes horizontally disposed and connect with pressure bar It is horizontally-supported, horizontally-supported to be connected with the vertical supporting being vertically arranged, vertical supporting is fixedly connected with the base;The weight bearing component packet Horizontal weight bearing that is horizontally disposed and connecting with pressure bar is included, level weight bearing one end is hinged with the vertical weight bearing being vertically arranged, vertically Weight bearing is fixedly connected with the base, and the level weight bearing other end is connected with load component.
It is described it is horizontally-supported on offer through-hole for installing pressure bar, offer on the pressure bar for installing The height off the ground of the through slot of level weight bearing, the horizontal weight bearing is greater than horizontally-supported height off the ground.
The vertical dimension of the through slot is greater than the thickness of horizontal weight bearing, and horizontal weight bearing can be made vertically to move in through slot It is dynamic.
It is described it is horizontally-supported connect by bolt with vertical supporting, horizontally-supported height can be adjusted by the bolt Degree.
It is described it is horizontally-supported on be provided with amesdial fixed link for installing amesdial, amesdial can measure test specimen The infiltration capacity of the penetrating fluid of upper surface.
Penetrating fluid collecting tank is provided on the pedestal, penetrating fluid collecting tank and penetrating fluid outlet connect.
The penetrating fluid collects trench bottom and is equipped with penetrating fluid delivery line, and penetrating fluid delivery line is equipped with valve, penetrating fluid Graduation mark is provided on collecting tank along the vertical direction.
It is provided in the test piece box and is able to detect pressure sensor and the pressure of display pressure value that test specimen bears pressure Power display screen.
Antiseepage material is all provided between the test piece box and pressure assembly and between test specimen and penetrating fluid outlet after being put into test specimen Material.
Compared with prior art, the load that the present invention will be applied using lever principle on the component that bears a heavy burden, is transmitted to pressure On component, then passes through pressure assembly and be uniformly applied to test specimen upper surface, and inject permeation liquid in the upper surface of test specimen, it will Test specimen is fixed in a relatively closed test piece box, and setting pressure intensity is carried out according to the requirement of experiment permeating corrosion time Steady seepage corrosion measures infiltration capacity, and take out deformation and pressure resistance that test specimen measures test specimen after reaching the ticket reserving time Degree evaluates concrete in different pressured states with this, permeability, intensity and deformation of the aggressive liquids to concrete Influence.The infiltration corrosion function of concrete compression and aggressive liquids is combined together by the present invention, so as to there is pressure condition Lower aggressive liquids are more true and fine to the evaluation of the permeability of concrete, intensity and the influence of deformation.
Further, the separate design of pressure plate and pressure bar, the assembling design of support component, the component that bears a heavy burden, so that test It operates more convenient succinct.Press the mutually nested connection design of bar, support component, the component that bears a heavy burden, during ensure that test The stability that pressure applies, improves the accuracy of test.The present invention applies load on load components, using lever principle, Vertical load is transmitted to pressure bar by weight bearing component, then test specimen upper surface, maximum limit are uniformly applied to by pressure plate Degree simulates the pressured state of concrete in true environment, improves the reliability of test.
Further, the through slot vertical dimension that installation level is born a heavy burden on pressure bar is greater than the thickness of level weight bearing, horizontal to bear Beijing South Maxpower Technology Co. Ltd is enough vertically movable in through slot.
Further, test piece box seals, and simulates the stress of concrete in practical projects to the full extent, there are infiltrations Transparent liquid outlet, is easy to observe os-motic state, simulates true erosion environment to greatest extent, ensure that the stabilization of apparatus of the present invention Property and reliability.It is provided with pressure sensor in test piece box, real-time detection and can show test specimen pressure valve, improve test Accuracy.
Further, the graduation mark that minimum scale is 1mm is provided in penetrating fluid collecting tank along the vertical direction, so that test In more accurately observe the os-motic state of test specimen.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of invention;
Fig. 2 is the assembly effect diagram of pressure assembly, support component and the component that bears a heavy burden;
Fig. 3 is pedestal, test piece box, the assembly effect diagram of penetrating fluid collecting tank and pressure plate;
Wherein, 1 it is pedestal, 2 be test piece box, 3 be penetrating fluid outlet, 4 be penetrating fluid collecting tank, 5 be pressure assembly, 6 is Support component, 7 be negative recombinate part, 8 be pressure plate, 9 be pressure bar, 10 be vertical weight bearing, 11 be horizontal weight bearing, 12 be load group Part, 13 be vertical supporting, 14 be horizontally-supported, 15 be through slot, 16 be through-hole, 17 be amesdial fixed link, 18 be that penetrating fluid is led Outlet pipe, 19 are pressure display screen.
Specific embodiment
Below with reference to specific embodiment and Figure of description the present invention will be further explained explanation.
Referring to Fig. 1, the present invention includes horizontally disposed pedestal 1, and test piece box 2 is provided on pedestal 1, is arranged before test piece box 2 There is penetrating fluid to export 3,3 connection penetrating fluid collecting tank 4 of penetrating fluid outlet, penetrating fluid collects trench bottom and is equipped with penetrating fluid delivery line 18, penetrating fluid delivery line 18 is equipped with valve, and the collection penetrating fluid that can make is more convenient.Pressure display unit is equipped on the outside of test piece box 2 19 and pressure sensor, principle of the pressure display unit 19 using sensor, the pressure that real-time display test specimen is born.Test piece box 2 is pushed up Portion is provided with test specimen pressure assembly 5, and pressure assembly 5 includes that pressure plate 8 and pressure bar 9, pressure assembly 5 are connected with support component 6 and weight bearing component 7, support component 6 include vertical supporting 13 and horizontally-supported 14, weight bearing component 7 includes 10, water of vertical weight bearing The horizontal direction component of flat weight bearing 11 and load component 12, weight bearing component 7 is higher than the horizontal direction component of support component 6.
Referring to fig. 2, it bears a heavy burden in component 7, vertical weight bearing 10 is rigidly connected with pedestal 1, vertical weight bearing 10 and horizontal weight bearing 11 Between it is hinged, be bolted between load component 12 and horizontal weight bearing 11;Vertical supporting 13 and pedestal 1 in support component 6 Rigid connection, vertical supporting 13 are fixed with horizontally-supported 14 by two bolts, and horizontally-supported 14 can be allowed to remove completely Or adjust height.Through slot 15 is provided on pressure bar 9, the vertical dimension of through slot 15 is 1.5 times of 11 thickness of horizontal weight bearing, energy So that horizontal weight bearing 11 is vertically movable in hole, but limit its transverse shifting.Level weight bearing 11 passes through through slot 15 and pressure Bar 9 connects, and vertical through holes 16 are provided on horizontally-supported 14, and pressure bar 9 passes through through-hole 16 and connect with horizontally-supported 14, through-hole 16 Size with pressure the size of bar 9 it is consistent, can make press bar 9 vertically move freely, but limit pressure bar 9 level side To movement.Horizontally-supported 14 front end is equipped with amesdial fixed link 17, and amesdial is fixed.
Referring to Fig. 3, pressure plate 8 only can be vertically movable in test piece box 2, pressure plate 8 and test piece box 2 after being put into test specimen Contact surface do Anti-seeping technology.Bulk in test piece box 2 is greater than test piece box penetrating fluid outlet 3, after being put into test specimen, infiltration Liquid exports and does Anti-seeping technology between 3 surrounding faces and test specimen, and test specimen can be made to be kept fixed simultaneously no leakage in the state of pressure-bearing.
Referring to Fig. 1,2 top opening of test piece box of the invention is provided with pressure plate 8 in opening, and pressure plate 8 can be in test specimen It is moved up and down inside case 2, pressure bar 9 is provided in pressure plate 8, pressure bar 9 is connect by through-hole 16 with support component 6, is born a heavy burden Component 7 is connect by through slot 15 with pressure bar 9, and 6 leading portion of support component is provided with amesdial fixed link 17, can pass through display screen 19 and amesdial read test specimen and bear pressure and vertical deformation value.
Referring to Fig. 1 and Fig. 2, support component 6 is made of vertical supporting 13, horizontally-supported 14, amesdial fixed link 17, vertically It supports 13 steel knots in pedestal 1, amesdial fixed link 17 and horizontally-supported 14 consolidation, then is connected by double bolts and vertical supporting 13 It connects, so that horizontally-supported 14 height is adjusted in a certain range.
Referring to Fig. 1, Fig. 2, the component 7 that bears a heavy burden is by vertically bearing a heavy burden 10, horizontal weight bearing 11 and load component 12 forms, load component 12 are connect by bolt with level weight bearing 11, and level weight bearing 11 and vertical weight bearing 10 are hinged, so that horizontal weight bearing 11 and load group Part 12 can be vertically movable.
Referring to Fig. 1, Fig. 2, the bar 9 that presses connect by through-hole 16 with horizontally-supported 14, level weight bearing 11 pass through through slot 15 and The bar 9 that presses connects, so that load passes to pressure bar 9 by the component that bears a heavy burden, then is applied pressure on test specimen by pressure plate.
Referring to Fig. 3, it is provided with penetrating fluid outlet 3 before test piece box 2, is provided with infiltration fluid catheter under penetrating fluid outlet 3 18 penetrating fluid collecting tank 4, pressure plate 8 can vertically move inside test piece box.
Concrete sample: being put into test piece box 2 by specific work process of the invention first, the week in penetrating fluid outlet 3 It encloses and carries out Anti-seeping technology in the range of contacting with test specimen, then inject penetrating fluid at the top of test specimen, be put into pressure plate 8, pass through Weight bearing is added on load component 12, and pressure intensity is adjusted by 19 show value of pressure display screen, amesdial is fixed on amesdial In fixed link 17, initial reading is set and is recorded, steady seepage corrosion is carried out according to the requirement of experiment permeating corrosion time, is reached After ticket reserving time, the penetrating fluid slippage of surface of test piece is obtained by amesdial, has shown that aggressive liquids are to mixed under pressure condition The influence of solidifying soil permeability takes out the deformation and compression strength of test specimen measurement test specimen, has obtained aggressive liquids under pressure condition Infiltration to concrete strength and deformation influence evaluation.
The present invention is provided with penetrating fluid collecting tank and pressure display screen, utilizes test piece box and the maximum mould of pressure plate Concrete stress is intended and has had pressure os-motic state, reflecting for fining has infiltration of the aggressive liquids to concrete under pressure condition Property, deformation and the influence of intensity.The present invention is further applied load by pressure assembly to test specimen from weight bearing component, and be further applied load process In, the stability for ensuring to be further applied load by support component is finally, anti-by the infiltration capacity of test specimen, deformation values and compression strength It mirrors under different compression environment, evaluation of different types of aggressive liquids to the permeability of concrete, deformation and intensity effect.

Claims (8)

1. one kind has concrete durability evaluation appts in the case of pressure, which is characterized in that including horizontally disposed pedestal (1), base The test piece box (2) for placing test specimen is provided on seat (1), the side of test piece box (2) offers penetrating fluid outlet (3), pedestal (1) it is provided on penetrating fluid collecting tank (4), penetrating fluid collecting tank (4) is connect with penetrating fluid outlet (3), and the penetrating fluid is received Collect slot (4) bottom and be equipped with penetrating fluid delivery line (18), penetrating fluid delivery line (18) is equipped with valve, and the top surface of test piece box (2) is set There is opening, be provided in opening pressure assembly (5), pressure assembly (5) is connected with support component (6) and weight bearing component (7);It is described Load can be transmitted to the upper surface of test specimen by pressure assembly (5) by weight bearing component (7), and the upper surface of test specimen is marked with when test Penetrating fluid;
The pressure assembly (5) includes the pressure plate (8) that be open in test piece box (2) top surface of setting, when test pressure plate (8) and The upper surface of test specimen contacts, and pressure plate (8) is connected with the pressure bar (9) being vertically arranged;The support component (6) sets including level Horizontally-supported (14) set and connect with pressure bar (9), horizontally-supported (14) are connected with the vertical supporting (13) being vertically arranged, and erect It is connected to support (13) and pedestal (1);Weight bearing component (7) includes that level that is horizontally disposed and connecting with pressure bar (9) is negative Weight (11), level weight bearing (11) one end are hinged with the vertical weight bearing (10) being vertically arranged, and vertical bear a heavy burden (10) and pedestal (1) are solid Even, level weight bearing (11) other end is connected with load component (12).
2. one kind according to claim 1 has concrete durability evaluation appts in the case of pressure, which is characterized in that described The through-hole (16) for installing pressure bar (9) is offered on horizontally-supported (14), is offered on the pressure bar (9) for installing The height off the ground of the through slot (15) of level weight bearing (11), the horizontal weight bearing (11) is greater than the height off the ground of horizontally-supported (14).
3. one kind according to claim 2 has concrete durability evaluation appts in the case of pressure, which is characterized in that described The vertical dimension of through slot (15) is greater than the thickness of horizontal weight bearing (11), and horizontal weight bearing (11) can be made vertically to move in through slot (15) It is dynamic.
4. one kind according to claim 3 has concrete durability evaluation appts in the case of pressure, which is characterized in that described The diameter of through-hole (16) on horizontally-supported (14) is identical as the pressure diameter of bar (9), move pressure bar (9) can only vertically It is dynamic.
5. one kind according to claim 1 has concrete durability evaluation appts in the case of pressure, which is characterized in that described Horizontally-supported (14) are connect by bolt with vertical supporting (13), and the height of horizontally-supported (14) can be adjusted by the bolt Degree.
6. one kind according to claim 5 has concrete durability evaluation appts in the case of pressure, which is characterized in that described The amesdial fixed link (17) for installing amesdial is provided on horizontally-supported (14), amesdial can measure test specimen upper surface Penetrating fluid infiltration capacity.
7. one kind according to claim 1-6 has concrete durability evaluation appts in the case of pressure, feature exists In, be provided in the test piece box (2) be able to detect test specimen bear pressure pressure sensor and display pressure value pressure Display screen (19).
8. one kind according to claim 1-6 has concrete durability evaluation appts in the case of pressure, feature exists In, after being put into test specimen between the test piece box (2) and pressure assembly (5) and test specimen and penetrating fluid outlet (3) between be all provided with antiseepage Material.
CN201510933821.5A 2015-12-14 2015-12-14 One kind having concrete durability evaluation appts in the case of pressure Expired - Fee Related CN105445176B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108801889B (en) * 2018-05-29 2020-11-17 江苏苏博特新材料股份有限公司 Corrosion evaluation device and method for simulating composite stress of reinforced concrete member
CN114112886B (en) * 2021-12-09 2024-01-26 长江师范学院 Corrosion-resistant testing arrangement of concrete

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2565008Y (en) * 2002-09-06 2003-08-06 张德庆 Polymer compression creepmeter
CN101074912A (en) * 2007-06-06 2007-11-21 河海大学 Apparatus and method for testing cement concrete penetration performance under loading action
CN104458418A (en) * 2014-12-15 2015-03-25 中国矿业大学(北京) Working face coal wall stability control simulation experiment table and application method
CN205192923U (en) * 2015-12-14 2016-04-27 榆林学院 Instrument is appraised to concrete durability under having pressure condition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2565008Y (en) * 2002-09-06 2003-08-06 张德庆 Polymer compression creepmeter
CN101074912A (en) * 2007-06-06 2007-11-21 河海大学 Apparatus and method for testing cement concrete penetration performance under loading action
CN104458418A (en) * 2014-12-15 2015-03-25 中国矿业大学(北京) Working face coal wall stability control simulation experiment table and application method
CN205192923U (en) * 2015-12-14 2016-04-27 榆林学院 Instrument is appraised to concrete durability under having pressure condition

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