One kind having concrete durability evaluation appts in the case of pressureTechnical field
The invention belongs to soil test technique fields, and in particular to one kind has concrete durability evaluation instrument in the case of pressureDevice.
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 influenceTesting equipment and method for measurement are more extensive, and acquired results are difficult to really reflect under different pressured states, aggressive liquidsInfiltration 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, corrodesProperty 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 pedestalIt 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, opensPressure assembly is provided on mouthful, pressure assembly is connected with support component and weight bearing component；The weight bearing component can lead to loadCross 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 testSurface contact, pressure plate are connected with the pressure bar being vertically arranged；The support component includes horizontally disposed and connect with pressure barIt 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 packetHorizontal 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, verticallyWeight 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 installingThe 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 slotIt is dynamic.
It is described it is horizontally-supported connect by bolt with vertical supporting, horizontally-supported height can be adjusted by the boltDegree.
It is described it is horizontally-supported on be provided with amesdial fixed link for installing amesdial, amesdial can measure test specimenThe 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 fluidGraduation 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 pressurePower 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 specimenMaterial.
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 pressureOn 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 willTest 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 timeSteady seepage corrosion measures infiltration capacity, and take out deformation and pressure resistance that test specimen measures test specimen after reaching the ticket reserving timeDegree evaluates concrete in different pressured states with this, permeability, intensity and deformation of the aggressive liquids to concreteInfluence.The infiltration corrosion function of concrete compression and aggressive liquids is combined together by the present invention, so as to there is pressure conditionLower 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 testIt operates more convenient succinct.Press the mutually nested connection design of bar, support component, the component that bears a heavy burden, during ensure that testThe 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 plateDegree 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 bearBeijing 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 infiltrationsTransparent 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 inventionProperty and reliability.It is provided with pressure sensor in test piece box, real-time detection and can show test specimen pressure valve, improve testAccuracy.
Further, the graduation mark that minimum scale is 1mm is provided in penetrating fluid collecting tank along the vertical direction, so that testIn 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 isSupport 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 groupPart, 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 ledOutlet 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 2There 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 line18, 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 219 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 upPortion 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 component6 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 bearingThe 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 11Between it is hinged, be bolted between load component 12 and horizontal weight bearing 11；Vertical supporting 13 and pedestal 1 in support component 6Rigid connection, vertical supporting 13 are fixed with horizontally-supported 14 by two bolts, and horizontally-supported 14 can be allowed to remove completelyOr 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, energySo 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 pressureBar 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 16Size with pressure the size of bar 9 it is consistent, can make press bar 9 vertically move freely, but limit pressure bar 9 level sideTo 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 specimenContact 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, infiltrationLiquid 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 specimenIt 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 burdenComponent 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 screen19 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, verticallyIt 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 13It 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 component12 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 groupPart 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 andThe 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 318 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 3It 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 throughWeight bearing is added on load component 12, and pressure intensity is adjusted by 19 show value of pressure display screen, amesdial is fixed on amesdialIn 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 reachedAfter 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 conditionThe influence of solidifying soil permeability takes out the deformation and compression strength of test specimen measurement test specimen, has obtained aggressive liquids under pressure conditionInfiltration 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 plateConcrete stress is intended and has had pressure os-motic state, reflecting for fining has infiltration of the aggressive liquids to concrete under pressure conditionProperty, 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 processIn, 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 strengthIt mirrors under different compression environment, evaluation of different types of aggressive liquids to the permeability of concrete, deformation and intensity effect.