CN204389256U - A kind of concrete sample - Google Patents
A kind of concrete sample Download PDFInfo
- Publication number
- CN204389256U CN204389256U CN201520079820.4U CN201520079820U CN204389256U CN 204389256 U CN204389256 U CN 204389256U CN 201520079820 U CN201520079820 U CN 201520079820U CN 204389256 U CN204389256 U CN 204389256U
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- CN
- China
- Prior art keywords
- concrete mortar
- concrete
- test specimen
- plane
- mortar
- 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
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Abstract
The utility model provides a kind of concrete sample, a kind of concrete sample, described test specimen is cylindrical, comprise old concrete mortar, interfacial agents and novel concrete mortar, described interfacial agents be positioned at old concrete mortar and novel concrete mortar in conjunction with in plane, the described angle in conjunction with plane and surface level is 60 °.Old concrete mortar block in described test specimen is for process in advance, and described novel concrete mortar is that the later stage is shaping.This concrete sample is simply shaping, more meets concrete on-the-spot actual, thus can evaluate the adhesive property of interfacial agents more objectively.
Description
Technical field
The utility model relates to a kind of concrete working device, especially relates to a kind of concrete sample.
Background technology
In concrete repair project, be typically employed in the method for New-old concrete joint surface being smeared interfacial agents and improve and increase adhesive property between New-old concrete.How to evaluate that the adhesive property of New-old concrete is domestic at present also lacks unified standard, common method has tensile test, pullout tests, bending test, shear test etc.When concrete sample compression test, the usual generation of test specimen tiltedly breaks bad, and according to theoretical analysis, the angle tiltedly cutting failure mechanics and surface level is 50 ° ~ 70 °, and based on above reasoning, 60 ° of angles can deemed appropriately be supposed.
Utility model content
The concrete sample that the utility model relates to, supposes that shear surface and horizontal plane angle are 60 ° exactly, more meets concrete on-the-spot actual, thus can evaluate the adhesive property of interfacial agents more objectively.Its technical scheme is as described below:
A kind of concrete sample, described test specimen is cylindrical, comprise old concrete mortar, interfacial agents and novel concrete mortar, described interfacial agents be positioned at old concrete mortar and novel concrete mortar in conjunction with in plane, the described angle in conjunction with plane and surface level is 60 °.
The diameter of described test specimen is 75mm, is highly 150mm.
In described test specimen with in conjunction with on the central lateral plane of plane orthogonal, the cross section of old concrete mortar and novel concrete mortar is trapezoidal, described trapezoidal on go to the bottom and be longly 10mm and 140mm, described trapezoidal height is 75mm.
Old concrete mortar block in described test specimen is for process in advance, and described novel concrete mortar is that the later stage is shaping.
The purpose of this utility model is achieved in that first at formation of concrete mortar specimen, sizes into old concrete mortar block after the length of time that maintenance is certain; Then carry out the process of faying face according to the explanation of interfacial agents producer and smear interfacial agents on the inclined-plane of old concrete mortar block; Then put into bottom die trial by block, in die trial, pour fresh concrete mortar into and use tamper jolt ramming, top is floating; Finally carry out form removal and the maintenance of test specimen.During test, test specimen is put into pressing machine and tests, tiltedly cut intensity and calculated divided by the area of ellipse in conjunction with plane by test specimen breaking pressure value.
This concrete sample is simply shaping, more meets concrete on-the-spot actual, thus can evaluate the adhesive property of interfacial agents more objectively.
Accompanying drawing explanation
Fig. 1 is the structural representation of described concrete sample;
1-old concrete mortar in figure; 2-interfacial agents; 3-novel concrete mortar.
Embodiment
As shown in Figure 1, described test specimen is cylindrical to the structure of this concrete sample, comprises old concrete mortar 1, interfacial agents 2 and novel concrete mortar 3.
Described interfacial agents 2 be positioned at old concrete mortar 1 and novel concrete mortar 3 in conjunction with in plane, the described angle in conjunction with plane and surface level is 60 °.
Described test specimen diameter is 75mm, is highly 150mm.
Described test specimen with in conjunction with on the central lateral plane of plane orthogonal, the cross section of old concrete mortar 1 and novel concrete mortar 3 is trapezoidal, described trapezoidal on go to the bottom and be longly 10mm and 140mm, described trapezoidal height is 75mm.
Old concrete mortar 1 block in described test specimen is for process in advance, and described novel concrete mortar 3 is that the later stage is shaping.
During use, first at formation of concrete mortar specimen, after the length of time that maintenance is certain, size into old concrete mortar 1 block; Then on the inclined-plane of old concrete mortar 1 block, carry out the process of faying face according to the explanation of interfacial agents producer and smear interfacial agents 2; Then put into bottom die trial by block 1, in die trial, pour fresh concrete mortar 3 into and use tamper jolt ramming, top is floating; Finally carry out form removal and the maintenance of test specimen.During test, test specimen is put into pressing machine and tests, tiltedly cut intensity and calculated divided by the area of ellipse in conjunction with plane by test specimen breaking pressure value.
Claims (4)
1. a concrete sample, it is characterized in that: described test specimen is cylindrical, comprise old concrete mortar (1), interfacial agents (2) and novel concrete mortar (3), described interfacial agents (2) be positioned at old concrete mortar (1) and novel concrete mortar (3) in conjunction with in plane, the described angle in conjunction with plane and surface level is 60 °.
2. concrete sample according to claim 1, is characterized in that: the diameter of described test specimen is 75mm, is highly 150mm.
3. concrete sample according to claim 1, it is characterized in that: in described test specimen with in conjunction with on the central lateral plane of plane orthogonal, the cross section of old concrete mortar (1) and novel concrete mortar (3) is trapezoidal, described trapezoidal on go to the bottom and be longly 10mm and 140mm, described trapezoidal height is 75mm.
4. concrete sample according to claim 1, is characterized in that: old concrete mortar (1) block in described test specimen for process in advance, described novel concrete mortar (3) for the later stage shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079820.4U CN204389256U (en) | 2015-02-04 | 2015-02-04 | A kind of concrete sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079820.4U CN204389256U (en) | 2015-02-04 | 2015-02-04 | A kind of concrete sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389256U true CN204389256U (en) | 2015-06-10 |
Family
ID=53361965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079820.4U Expired - Fee Related CN204389256U (en) | 2015-02-04 | 2015-02-04 | A kind of concrete sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204389256U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758737A (en) * | 2016-04-22 | 2016-07-13 | 华北水利水电大学 | Method and device for testing shear strength of rock and concrete bond interface |
| CN108896371A (en) * | 2018-07-19 | 2018-11-27 | 合肥工业大学 | A kind of oblique scissor test part production tooling in conjunction old and new concret face and production method |
| CN111879583A (en) * | 2020-07-07 | 2020-11-03 | 汕头大学 | Novel concrete-epoxy mortar combined test piece structure and manufacturing process |
-
2015
- 2015-02-04 CN CN201520079820.4U patent/CN204389256U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758737A (en) * | 2016-04-22 | 2016-07-13 | 华北水利水电大学 | Method and device for testing shear strength of rock and concrete bond interface |
| CN108896371A (en) * | 2018-07-19 | 2018-11-27 | 合肥工业大学 | A kind of oblique scissor test part production tooling in conjunction old and new concret face and production method |
| CN108896371B (en) * | 2018-07-19 | 2024-02-20 | 合肥工业大学 | Manufacturing tool and manufacturing method for new and old concrete junction surface oblique shear test piece |
| CN111879583A (en) * | 2020-07-07 | 2020-11-03 | 汕头大学 | Novel concrete-epoxy mortar combined test piece structure and manufacturing process |
| CN111879583B (en) * | 2020-07-07 | 2022-08-30 | 汕头大学 | Novel concrete-epoxy mortar combined test piece structure and manufacturing process |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20220204 |