CN202928939U - Shear-resisting bonding strength testing device of structural adhesive between reinforcing material and concrete - Google Patents
Shear-resisting bonding strength testing device of structural adhesive between reinforcing material and concrete Download PDFInfo
- Publication number
- CN202928939U CN202928939U CN 201220639361 CN201220639361U CN202928939U CN 202928939 U CN202928939 U CN 202928939U CN 201220639361 CN201220639361 CN 201220639361 CN 201220639361 U CN201220639361 U CN 201220639361U CN 202928939 U CN202928939 U CN 202928939U
- Authority
- CN
- China
- Prior art keywords
- concrete
- cover plate
- external corner
- supporting plate
- reinforcement material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a shear-resisting bonding strength testing device of a structural adhesive between a reinforcing material and concrete. The shear-resisting bonding strength testing device is characterized by comprising an upper hanging rack arranged at the outer edge of an upper concrete test block and a lower hanging rack arranged at the outer edge of a lower concrete test block; a V-shaped bulge is arranged at the middle position of the bottom face of the upper hanging rack; a V-shaped groove which is arranged at the middle position of the top face of the lower hanging rack is matched with the V-shaped bulge on the upper hanging rack; and the V-shaped bulge can pivotally rotate for a certain angle around a contact wire in the groove. A test method comprises the following specific steps of: placing the upper hanging rack on the lower hanging rack; placing the V-shaped bulge into the V-shaped groove and fixing by using positioning bars; utilizing the structural adhesive to stick reinforcing materials on the side faces of the test blocks, wherein sticking areas of the reinforcing materials on the two test blocks are the same; after the structural adhesive is completely cured, removing all positioning cover plates and all the positioning bars on one sides of the detached concrete blocks; and applying pressure to enable the concrete test blocks to have the tendency of pivotally rotating around the contact wire of the V-shaped bulge, so as to calculate the shear-resisting bonding strength when cutting sticking force is generated and reaches the extreme value to damage the structural adhesive.
Description
Technical field
The utility model is mainly used in building in science and technology field, in the concrete structure reinforcement transformation, and the device of its shearing resistance cohesive strength of the test when structure glue bonding and reinforcement material and concrete substrate.
Background technology
In concrete structure engineering strengthening reconstruction project, have need to be on concrete substrate the technical measures of the reinforcement material such as affixing steel plate, composite reinforcing fiber.Such measures pastes reinforcement material on concrete substrate by structure glue, gives full play to the high characteristics of reinforcement material tensile strength, reaches the purpose of reinforcement and strengthening.The key of technique is the compatible deformation of reinforcement material and concrete substrate with jointly stressed, and the compatible deformation shear bond power that relies on structure glue to provide fully provides between the two, thereby the shearing resistance cohesive strength is to weigh the important indicator of adhesives performance.The performance that between reinforcement material and concrete, structure glue shearing resistance cohesive strength can the most direct reflect structure glue there is no corresponding assay method at present.
In national standard " concrete structure reinforcement design specifications " GB50367-2006, " building structure strengthening engineering construction quality acceptance specification " GB50550-2010, Association for Standardization's standard " Concrete Structure Strengthening with Carbon Fiber Sheet technical regulation " CECS146:2003(2007 version) in, performance index about structure glue, have and just draw cohesive strength, steel-performances such as steel shearing strength, but all can not reflect this important indicator of shearing resistance cohesive strength of reinforcement material and base material.Have in the standard appendix " the bonding reinforcement material of structure glue and base material just draw bonding strength test chamber assay method ", just draw cohesive strength in order to evaluation structure glue, but the normal stress state (shear stress that is parallel to the reinforcement material surface) when stressed of the structure glue stress state (perpendicular to the normal stress on reinforcement material surface) in when test and structure is not identical, and what just drawing that cohesive strength and shearing resistance cohesive strength reflect is the adhesive property of two different aspects of structure glue.
The method of testing that tackifier tensile shear strength (rigid material is to rigid material) arranged in national standard " mensuration of tackifier tensile shear strength (rigid material is to rigid material) " GB/T7124-2008, the method is to apply tensile force being parallel on the sample major axes orientation of bonding plane, detect the shear stress of rigid material list overlap joint abutting edge (being steel disc to steel disc or fiberboard to fiberboard), reflected to a certain extent the cohesive strength of structure glue material itself.But structure is normal when stressed in actual reinforcing engineering, the most direct adhesive property index of structure glue is the reinforcement material that bonds and the shearing resistance cohesive strength between concrete substrate, because concrete material tensile strength is lower, can't make reinforcement material to the sample of concrete thin plates, so intensity index can't be tested by this standard by this standard.The structural adhesive bond performance index of testing in this standard is only the bonding shear strength between reinforcement material and reinforcement material, therefore clearly indicated " can not be as the design stress of structural adhesive bonding from cementing shear resistance value that obtains of single overlap joint " in this standard.
Current have patent of invention " shear strength tester and shearing test method " (patent No.: ZL201010107968.6), be when xoncrete structure adopts the high-strength lath of shallow-layer build-in or surface to paste high-strength lath in the Reinforcement of Engineering Structure transformation project, detect instrumentation and the method for bond shear strength between lath and former xoncrete structure.This equipment is divided into dynamometer link, shears support, registration instrument three parts, by screwing the dynamometer link bolt, the shearing bracket end is opened, utilize the power transmission boots to prop up the lath completed of bonding and to its pushing, make it and the concrete interface bond damage, adopt the size of the tension-compression sensor test shearing force of establishing in dynamometer link, show maximum shear stress by the registration instrument.This patent of invention adopts the means of local damage, cuts out the reinforcement material of certain area on the member that is reinforced, and the shearing resistance cohesive strength of reinforcement material and base material in this areal extent of on-the-spot test can reflect the construction quality of strengthening with external bonding.But this patent of invention only can detect the bond shear strength with certain thickness reinforcement material, need the power transmission boots prop up and promote lath makes it and concrete substrate between produce shear failure, for the less lath of thickness (1～2mm) and fiber cloth (during the reinforcement material such as 0.111～0.167mm), because being difficult to accomplish only to prop up reinforcement material, the power transmission boots do not contact concrete, often can't promote lath or fiber cloth makes it shear failure, the use of the method has certain limitation; When adopting this patent of invention test, the reinforcement material effect of being stressed, be not inconsistent with the situation that is subjected to pulling force in Practical Project; Need when adopting this patent of invention to cut reinforcement material, not only to reinforcement material be reinforced member certain damage is arranged, the high temperature that produces during cutting can affect the performance of adhesives, affects test result.Therefore this patent of invention can not adapt to the test of structure glue shearing resistance cohesive strength between reinforcement material and concrete fully.
Summary of the invention
The deficiency of shearing resistance cohesive strength detection method when making up the bonding reinforcement material of structure glue and concrete substrate, guarantee the adhesive property of structure glue and the matching of reinforcement material and structure glue, guarantee the reinforcing engineering quality, the utility model provides proving installation and the method for structure glue shearing resistance cohesive strength between a kind of reinforcement material and concrete.
The technical measures that this programme is taked are, structure glue shearing resistance cohesive strength proving installation between a kind of reinforcement material and concrete, it is characterized in that it comprises the upper hanger that is arranged on the concrete test block outer rim and the lower hanger that descends the concrete test block outer rim, centre position, upper hanger bottom surface arranges the V-arrangement projection, the V-arrangement projection that lower hanger end face centre position arranges v-depression and upper hanger coordinates, the V-arrangement projection in groove around osculatory pivotable certain angle.
The concrete characteristics of this programme also have, described upper hanger comprises the external corner cover plate and the edge of a knife supporting plate that is positioned at the concrete test block below that is positioned at the concrete test block top, external corner cover plate and edge of a knife supporting plate link together by connection strap at least one, in edge of a knife supporting plate bottom surface, the V-arrangement projection are set.
Described lower hanger comprises superposed cutter groove cover plate and the external corner supporting plate that is positioned at the bottom, and cutter groove cover plate and external corner supporting plate link together by at least one time connection strap; At cutter groove cover plate end face, v-depression is set, V-arrangement projection and v-depression all are arranged in parallel with the external corner cover plate.
Upper connection strap be two and be evenly distributed on the external corner cover plate and the side parallel with v-depression of edge of a knife supporting plate on; Lower connection strap be two and be evenly distributed on cutter groove cover plate and the side parallel with v-depression of external corner supporting plate on.
Be positioned at the external corner cover plate and external corner supporting plate offside arranges respectively positioning cover plate on concrete test block.
Four jiaos of upper hanger and lower hangers arrange four positioning strips, four pilot holes are set on positioning strip, the bolt that passes pilot hole screws in respectively the external corner cover plate, edge of a knife supporting plate, on cutter groove cover plate and external corner supporting plate in the corresponding threaded hole that arranges with the external corner cover plate, edge of a knife supporting plate, cutter groove cover plate, external corner supporting plate and positioning cover plate integrally are fixed together.
The bolt hole of connection strap and positioning strip is strip, can adjust the spacing of supporting plate and cover plate, has in order to adapt to the concrete test block of making error.
The height of V-arrangement projection is 10mm, and angle is 80 °～90 °; The recessed degree of depth of v-depression is 3mm, and angle is 110 °～120 °.
The beneficial effect of this programme is: upper hanger and lower hanger form can the fixing concrete reference block space frame, and form the space lever system, after loading equipemtn is exerted pressure to the external corner cover plate, concrete test block has the trend around edge of a knife supporting plate V-arrangement projection end pivot, makes between reinforcement material and concrete test block surface and produces shearing force.The effect of positioning strip is temporary fixed concrete test block, guarantees that at concrete test block side strengthening with external bonding material, structure glue maintenance and test unit concrete test block does not produce relative displacement in testing machine process in place, and structure glue is not by disturbance.Connection strap, positioning strip are established the strip bolt hole, and its effect is to adjust the cover plate spacing, have in order to adapt to the concrete test block of making error.In test process, connection strap does not stress.After adopting testing machine or other loading facilities that external corner cover plate and external corner supporting plate are exerted pressure, produce shear bond power τ (y) between reinforcement material and concrete substrate, its stress is consistent with stress in engineering.The edge of a knife supporting plate V-type projection osculatory of test unit is positioned at the middle part of concrete test block, the pressure equal and opposite in direction of make a concerted effort T and the testing machine of shear bond power τ (y).When shear bond power value of reaching capacity of structure glue is also finally destroyed, can calculate the shearing resistance cohesive strength by the bond area A of extreme pressure N and destruction
f τThis equipment has simple structure, easy and simple to handle, safe and reliable, be easy to the advantages such as maintenance, during the shearing resistance cohesive strength of test structure glue bond reinforcement material and concrete substrate, the concrete test block close with concrete members to be reinforced with the proportioning of gathering materials that can adopt intensity, so as the adhesive property when evaluation structure glue is applied to Practical Project better and with the suitability of reinforcement material.This method of testing test figure is stable, and test method is reliable, is applicable to test the test of structure glue shearing resistance cohesive strength between reinforcement material and concrete.
Stressing conditions is analyzed as follows shown in Figure 4, and loading equipemtn pressure reaches concrete test block by external corner cover plate (external corner supporting plate), then reaches edge of a knife supporting plate (cutter groove cover plate), and connection strap does not stress in process of the test.Under the effect of pressure, test block has around the trend of V-arrangement projection osculatory (O place) pivotable, and reinforcement material produces pulling force T and stops its rotation, produces shear bond power between reinforcement material and concrete substrate.In process of the test, make a concerted effort (the reinforcement material pulling force) of shear bond power, loading equipemtn pressure are around V-arrangement projection osculatory equalising torque, in process of the test until destroy, structure glue detrusion is minimum, therefore the test block pivotable is minimum, the making a concerted effort of shear bond power, loading equipemtn pressure are parallel all the time.When test destroyed, the loading equipemtn extreme pressure was N, the structure glue shearing force make a concerted effort (reinforcement material pulling force) be T, the protruding osculatory of the edge of a knife supporting plate V-type of test unit is positioned at the middle part of concrete test block, the arm of force of T, N is 75mm, by torque equilibrium equation:
75 * N=75 * T has: T=N
The make a concerted effort pass of (reinforcement material pulling force) T and structure glue shear bond stress τ (y) of structure glue shearing force is:
Structure glue shear bond stress τ (y) is born by structure glue fully, and its stress is consistent with stress in engineering.
When test specimen destroyed, between reinforcement material and concrete, structure glue shearing resistance cohesive strength was:
The verification experimental verification situation
Adopt this device and method, the KY-5 type structure glue of Shandong architectural scientific research institute development and production is tested, selecting strength grade during check is two kinds of concrete test blocks of C20 and C40, to represent two kinds of different project situation.
Selecting strength grade is that the detection data of C20 concrete test block are as follows:
Selecting strength grade is that the detection data of C40 concrete test block are as follows:
Conclusion (of pressure testing)
1 collapse state
The collapse state that this method records is different from " concrete structure reinforcement design specifications " GB50367-2006, " building structure strengthening engineering construction quality acceptance specification " GB50550-2010, Association for Standardization's standard " Concrete Structure Strengthening with Carbon Fiber Sheet technical regulation " CECS146:2003(2007 version) etc. adopt destruction form (being generally the concrete base layer tensile failure) when just drawing bonding strength test in standard; Also be different from the collapse state (being generally structure glue and rigid material adhesive surface shear failure or structure glue inter-laminar shear failure) when in " mensuration of tackifier tensile shear strength (rigid material is to rigid material) " GB/T7124-2008, tackifier tensile shear strength (rigid material is to rigid material) is tested.
The collapse state that this method records is concrete surface layer shear failure (when concrete strength is low) or concrete and structure glue bonding plane interface shearing destruction (when concrete strength is higher), destruction homomorphosis with in engineering structure meets the engineering actual conditions.(as Fig. 5)
Reinforcement material stress during 2 test
This method is different from when adopting patent of invention " shear strength tester and shearing test method " (patent No.: ZL2010 10107968.6) the test high-strength lath of shallow-layer build-in or surface to paste the cohesive strength of high-strength lath, the situation of the reinforcement material effect of being stressed in testing process, reinforcement material tension power effect during this method test, identical with stress in Practical Project, the result of surveying more can represent the engineering actual conditions.
3 detect Data Comparison
The shearing resistance cohesive strength that this method records is than just drawing cohesive strength (by the regulation of " Code for design of concrete structures " GB50010-2010, during C20, hardness Ageing is got 1.54MPa, get 2.39MPa during C40) numerical value slightly high, meet concrete shearing intensity a little more than the actual conditions of hardness Ageing.
4 measuring accuracies
The collapse state of test specimen on the same group of this method test is close, and the standard deviation of test result is all less, shows that test figure is stable, and test method is reliable.
5 press close to engineering reality
The shearing strength result is not only relevant with the character of structure glue itself, and is also relevant with strength grade of concrete.The result of this method test has reflected this actual conditions, and can select according to the difference of Practical Project concrete strength the concrete test block of different intensity grades, in order to make with engineering reality more near test result, instructs better engineering practice.
Description of drawings
Fig. 1 is upper hanger and lower hanging rack structure schematic diagram; Fig. 2 is arranged on the outer upper hanger of concrete test block and lower hanging rack structure schematic diagram; Up and down hanger constitutional diagram when Fig. 3 is test; Fig. 4 is force analysis figure; Fig. 5 is reinforcement material stripping damage view under pulling force in Practical Project.
In figure: 1-screw; 2-upper connection strap; 3-external corner cover plate; 4-edge of a knife supporting plate; 5-cutter groove cover plate; 6-external corner supporting plate; 7-positioning strip; 8-positioning cover plate; 9-concrete test block; 10-reinforcement material; 11-loading equipemtn pressure direction; 12-lower connection strap; The 13-bolt hole; 14-peels off the end; Peel off at diagonal crack place, 15-middle part.
Embodiment
As shown in Fig. 1-2, structure glue shearing resistance cohesive strength proving installation between a kind of reinforcement material and concrete, it comprises the upper hanger that is arranged on concrete test block 9 outer rims and the lower hanger that descends concrete test block 9 outer rims, centre position, upper hanger bottom surface arranges the V-arrangement projection, the V-arrangement projection that lower hanger end face centre position arranges v-depression and upper hanger coordinates, the V-arrangement projection in groove around osculatory pivotable certain angle.Described upper hanger comprises the external corner cover plate 3 that is positioned at concrete test block 9 tops and the edge of a knife supporting plate 4 that is positioned at concrete test block 9 belows, and external corner cover plate 3 and edge of a knife supporting plate 4 link together by connection strap 2 at least one, in edge of a knife supporting plate 4 bottom surfaces, the V-arrangement projection is set; Described lower hanger comprises superposed cutter groove cover plate 5 and the external corner supporting plate 6 that is positioned at the bottom, and cutter groove cover plate 5 and external corner supporting plate 6 link together by at least one time connection strap 12; At cutter groove cover plate 5 end faces, v-depression is set, V-arrangement projection and v-depression all are arranged in parallel with external corner cover plate 3.Upper connection strap 2 be two and be evenly distributed on external corner cover plate 3 and the side parallel with v-depression of edge of a knife supporting plate 4 on; Lower connection strap 12 be two and be evenly distributed on cutter groove cover plate 5 and the side parallel with v-depression of external corner supporting plate 6 on; Be positioned at external corner cover plate 3 and external corner supporting plate 6 offsides arrange respectively positioning cover plate 8 on concrete test block 9.
Four jiaos of upper hanger and lower hangers arrange four positioning strips 7, four pilot holes are set on positioning strip 7, the screw 1 that passes pilot hole screws in respectively external corner cover plate 3, edge of a knife supporting plate 4, in the threaded hole that on cutter groove cover plate 5, external corner supporting plate 6 and positioning cover plate 8, correspondence arranges, with external corner cover plate 3, edge of a knife supporting plate 4, cutter groove cover plate 5, external corner supporting plate 6 and positioning cover plate 8 integrally are fixed together.
Bolt hole on upper connection strap 2 and lower connection strap 12 and positioning strip 7 is strip, can adjust the spacing of external corner supporting plate and edge of a knife supporting plate and cutter groove cover plate and external corner supporting plate, have in order to adapt to the concrete test block of making error, in test process, upper connection strap 2, lower connection strap 12 and positioning strip 7 all do not stress.
The height of V-arrangement projection is 10mm, and angle is 80 °～90 °; The recessed degree of depth of v-depression is 3mm, and angle is 110 °～120 °.
As Figure 1-3, the present invention also provides structure glue shearing resistance bond strength testing method between a kind of reinforcement material and concrete, it is characterized in that: upper hanger as claimed in claim 1 and lower hanger are set on two concrete test blocks; Upper hanger is placed into the V-arrangement projection is placed in v-depression, and use positioning strip 7 that upper hanger and lower hanger is temporary fixed; Adopt structure glue that reinforcement material 10 is pasted the test block side, reinforcement material 10 equates at the bonding area of two test blocks, solidify fully and after one week of maintenance at normal temperatures until structure glue, whole positioning cover plates 8 of dismantling concrete test block one side and whole positioning strip 7, the pressure that utilizes pressing machine or other loading facilitieses to produce is applied on the external corner cover plate 3 of opposite side, make concrete test block 9 that trend around V-arrangement projection osculatory pivotable be arranged, reinforcement material stops its pivotable, thereby produces shear bond power between reinforcement material 10 and concrete substrate; When shear bond power value of reaching capacity of structure glue is also finally destroyed, can calculate by the bond area of extreme pressure and destruction the shearing resistance cohesive strength.The V-arrangement projection is positioned at the below at concrete test block 9 middle parts, bottom surface, the pressure equal and opposite in direction of shear bond power and loading facilities.
1 test is prepared
1.1 covered with plastic film on edge of a knife supporting plate and cutter groove cover plate, in order to avoid adhesives pollutes, plastic sheeting can not affect measuring accuracy simultaneously.
1.2 when test concrete test block used should to adopt the length of side be the test block of 150mm, adhesive property when evaluation structure glue is applied to Practical Project better and with the suitability of reinforcement material, the concrete test block close with concrete members to be reinforced with the proportioning of gathering materials that can adopt intensity.
1.3 two concrete test blocks are placed in the space that assembly of the present invention assembling forms, build end face and the bottom surface of concrete test block is placed in position over against positioning strip, make it to be in all the time non-direct stress in process of the test.Two concrete test blocks that align tight a bolt, and fix concrete test block.
1.4 the technological requirement by product description regulation prepares structure glue, bonding process in accordance with regulations sticks on two concrete test block sides with reinforcement material, and reinforcement material equates at the bonding area of two test blocks, and under normal temperature, maintenance is more than 7 days.
2 test procedures
2.1 assembly is placed between the bearing plate of testing machine or other loading equipemtn, makes the on-load pressure active line by connecting the mid point of cover plate.Complete rear dismounting positioning strip in place and positioning cover plate.
2.2 start testing laboratory, with the speed loading of 0.2～0.5kN/s, this moment, two concrete test blocks had the trend around edge of a knife supporting plate projection osculatory pivotable, reinforcement material stops its rotation, produces thus the bonding shearing force between reinforcement material and concrete substrate.
2.3 continue to load until reinforcement material and concrete substrate produce bonding shear failure, because the limit shearing strain of bonding shear failure is little, therefore in process of the test, concrete test block is minimum around edge of a knife supporting plate V-arrangement projection osculatory pivotable, reinforcement material is in the axis extended state all the time, structure glue is in shearing condition all the time, and both are subjected to force direction all parallel with the loading equipemtn pressure direction.Extreme pressure value N when record destroys, the physical length of measurement shear breakage
lAnd width
b, the shearing resistance cohesive strength of structure glue bonding and reinforcement material and base material
2.4 make some samples for every group, test respectively its shearing resistance cohesive strength, then according to structure glue shearing resistance cohesive strength between the parameter evaluation reinforcement materials such as mean value, standard deviation and concrete.
Claims (7)
1. structure glue shearing resistance cohesive strength proving installation between a reinforcement material and concrete, it is characterized in that it comprises the upper hanger that is arranged on the concrete test block outer rim and the lower hanger that descends the concrete test block outer rim, centre position, upper hanger bottom surface arranges the V-arrangement projection, the V-arrangement projection that lower hanger end face centre position arranges v-depression and upper hanger coordinates, the V-arrangement projection in groove around osculatory pivotable certain angle.
2. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 1 and concrete, it is characterized in that described upper hanger comprises the external corner cover plate and the edge of a knife supporting plate that is positioned at the concrete test block below that is positioned at the concrete test block top, external corner cover plate and edge of a knife supporting plate link together by connection strap at least one, in edge of a knife supporting plate bottom surface, the V-arrangement projection are set; Described lower hanger comprises superposed cutter groove cover plate and the external corner supporting plate that is positioned at the bottom, and cutter groove cover plate and external corner supporting plate link together by at least one time connection strap; At cutter groove cover plate end face, v-depression is set, V-arrangement projection and external corner cover plate are arranged in parallel.
3. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 2 and concrete, it is characterized in that connection strap be two and be evenly distributed on the external corner cover plate and the side parallel with v-depression of edge of a knife supporting plate on; Lower connection strap be two and be evenly distributed on cutter groove cover plate and the side parallel with v-depression of external corner supporting plate on.
4. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 2 and concrete is characterized in that being positioned at the external corner cover plate on concrete test block and external corner supporting plate offside arranges respectively positioning cover plate.
5. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 4 and concrete, it is characterized in that four jiaos of upper hanger and lower hangers arrange four positioning strips, four pilot holes are set on positioning strip, the bolt that passes pilot hole screws in respectively the external corner cover plate, edge of a knife supporting plate, on cutter groove cover plate and external corner supporting plate in the corresponding threaded hole that arranges with the external corner cover plate, edge of a knife supporting plate, cutter groove cover plate, external corner supporting plate and positioning cover plate integrally are fixed together.
6. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 5 and concrete, is characterized in that the bolt hole of connection strap and positioning strip is strip.
7. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 1 and concrete, the height that it is characterized in that the V-arrangement projection is 10mm, angle is 80 °～90 °; The recessed degree of depth of v-depression is 3mm, and angle is 110 °～120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639361 CN202928939U (en) | 2012-11-28 | 2012-11-28 | Shear-resisting bonding strength testing device of structural adhesive between reinforcing material and concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639361 CN202928939U (en) | 2012-11-28 | 2012-11-28 | Shear-resisting bonding strength testing device of structural adhesive between reinforcing material and concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202928939U true CN202928939U (en) | 2013-05-08 |
Family
ID=48218890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220639361 Expired - Fee Related CN202928939U (en) | 2012-11-28 | 2012-11-28 | Shear-resisting bonding strength testing device of structural adhesive between reinforcing material and concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202928939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748104A (en) * | 2017-09-05 | 2018-03-02 | 中建商品混凝土有限公司 | The method of testing of 3D printing building structure bond strength between layers |
| CN108732014A (en) * | 2018-05-18 | 2018-11-02 | 中铁九桥工程有限公司 | A kind of tetrafluoro plate pastes the detection device and detection method of shearing strength |
-
2012
- 2012-11-28 CN CN 201220639361 patent/CN202928939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748104A (en) * | 2017-09-05 | 2018-03-02 | 中建商品混凝土有限公司 | The method of testing of 3D printing building structure bond strength between layers |
| CN108732014A (en) * | 2018-05-18 | 2018-11-02 | 中铁九桥工程有限公司 | A kind of tetrafluoro plate pastes the detection device and detection method of shearing strength |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102944514B (en) | Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete | |
| CN103344560B (en) | Method for testing interface bond behavior of CFRP (carbon fiber reinforced polymer) cloth-concrete based on beam specimen | |
| CN106644761B (en) | A kind of test method of measurement rock-concrete interface shearing constitutive relation | |
| CN204439474U (en) | The field direct shear test device of landslide rock mass shearing strength | |
| CN101806714B (en) | Beam tester of bonding strength of fibre reinforced composite sheet and concrete | |
| CN201555780U (en) | Multifunctional wood adhesive bonding strength testing machine | |
| CN101806712A (en) | On-site testing method for tensile adhesive strength of existing curtain wall structural silicone sealant | |
| CN108240965A (en) | A kind of bituminous paving interlayer adhesion strength detection device and its detection method | |
| CN104777097A (en) | FRP-concrete interface adhesive property testing device and method | |
| CN104807707A (en) | Testing device and testing method for determining double-side shear performance of FRP (Fiber Reinforced Plastic)-concrete | |
| CN204405516U (en) | A kind of laminated-metal composite interface peel strength testing device | |
| CN202928939U (en) | Shear-resisting bonding strength testing device of structural adhesive between reinforcing material and concrete | |
| CN203216831U (en) | On-site retrieved member steel bar and concrete bonding property press-in testing device | |
| CN206593969U (en) | The axial tension test device of cement-base composite material test specimen | |
| Perret et al. | Experimental determination of the equivalent-layer shear stiffness of CLT through four-point bending of sandwich beams | |
| CN103076236A (en) | Analog semi-rigid underlying structure temperature shrinkage fracture testing method and device | |
| CN105352802A (en) | Lamellar optical cement elasticity modulus testing method and sample | |
| CN206300849U (en) | A kind of surrounding hoop type shear box three dimension stress direct shear apparatus | |
| RU148805U1 (en) | PANEL TEST STAND | |
| CN203396690U (en) | Carbon fiber cloth-concrete interface adhesive property test device based on beam type test piece | |
| CN202330250U (en) | Testing device for directly measuring bonding performance of early-stage concrete and steel bars | |
| CN113155732B (en) | High-strength steel strand network reinforced ECC (error correction code) and concrete interface performance test method | |
| CN110044738B (en) | Fatigue test device with controllable applied multi-axis stress of welding seam and application method thereof | |
| CN216247570U (en) | Concrete faying face shear fatigue strength testing arrangement | |
| CN109696399A (en) | It is a kind of for testing the experimental provision of bituminous pavement interlayer adhesive property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130508 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |