CN103792120B - The die trial of centrifugal concrete intensity detection and centrifugal concrete strength detecting method - Google Patents
The die trial of centrifugal concrete intensity detection and centrifugal concrete strength detecting method Download PDFInfo
- Publication number
- CN103792120B CN103792120B CN201410045917.3A CN201410045917A CN103792120B CN 103792120 B CN103792120 B CN 103792120B CN 201410045917 A CN201410045917 A CN 201410045917A CN 103792120 B CN103792120 B CN 103792120B
- Authority
- CN
- China
- Prior art keywords
- concrete
- centrifugal
- die trial
- top board
- plate
- 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.)
- Active
Links
Abstract
The invention discloses the die trial of a kind of centrifugal concrete intensity detection and centrifugal concrete strength detecting method, this device comprises base plate, top board, biside plate and is positioned at the two end plates at biside plate two ends, and the method is installed on band mould pile tube by tensioning nut and is put into the centrifugal treating of hydro-extractor carrying out equal technique; And the axis of tensioning nut and described cavity pass the dead in line of top board and base plate, therefore make the concrete in die trial can be subject to uniform centrifugal force when centrifugation, actual strength after final formation and pile tube concrete centrifugal, tests the test findings that obtains more close to the real intensive parameter of pile tube concrete to obtained concrete test block like this.
Description
Technical field
The present invention relates to the technology of concrete strength inspection, particularly relate to the detection of centrifugal concrete intensity, be specifically related to the die trial of a kind of centrifugal concrete intensity detection and centrifugal concrete strength detecting method.
Background technology
Current prestressed concrete pipe pile is according to " normal concrete mechanical test method " GB/T50081-2002 by concrete detection method, and namely the direct concrete three joint-trial mould that loaded by concrete after mix represents prestressed concrete intensity level with the compression strength value of its standard cube after the equal technique maintenance of pile tube after plugging and pounding jolt ramming.But prestressed high-strength concrete pile concrete is after centrifugal, its water cement ratio diminishes, the concrete structure of difference because of centrifuging process, packings etc. all change a lot, prestressed high-strength concrete pile pile body after centrifugal and the concrete actual strength of pile tube stress surface be ensure one of prestressed high-strength concrete pile important quality index, testing result in this approach can not represent the actual strength after prestressed high-strength concrete pile concrete centrifugal, can not react objectively centrifugal after prestressed high-strength concrete pile pile body and the concrete actual strength of pile tube stress surface, so at present in the urgent need to a kind of detection method that can measure centrifugal concrete intensity.
Therefore, need a kind of new technical scheme to solve the problem.
Summary of the invention
In order to solve the problem, the invention provides the die trial of a kind of centrifugal concrete intensity detection and centrifugal concrete strength detecting method, the concrete made can be made to carry out centrifugal forming, concrete strength after centrifugal forming more close to the actual strength after pile tube concrete centrifugal, to provide more accurate pile tube concrete strength inspection result.
For achieving the above object, centrifugal concrete intensity detection of the present invention die trial can adopt following technical scheme:
The die trial of a kind of centrifugal concrete intensity detection, comprise base plate, top board, biside plate and be positioned at the two end plates at biside plate two ends, base plate, top board, biside plate and two end plates form the concrete cavity of collecting jointly, described plate outer surface is connected with tensioning nut, and the axis of described tensioning nut and described cavity pass the dead in line of top board and base plate.
The centrifugal concrete strength detecting method of above-mentioned centrifugal concrete intensity detection die trial is used to be: to open top board, production pile tube is loaded the cavity of centrifugal concrete die trial with concrete after, top board is fixed by the first upper and lower mould coupling bolt and the second upper and lower mould coupling bolt and base plate, biside plate is fixed by side plate coupling bolt, then the tensioning nut that the die trial of concrete centrifugal concrete intensity detection is housed is screwed on the tensioning screw rod of the band mould pile tube that the identical stretch-draw of external diameter terminates, again the band mould pile tube with centrifugal concrete die trial is put into the centrifugal treating of hydro-extractor carrying out equal technique, carry out the steam normal temperature maintenance of equal technique together with pipe die after centrifugal treating terminates, after normal temperature maintenance, take apart a die, concrete now forms test block by centrifuging process, this test block and pile tube are carried out the vapor injection maintenance of equal technique, after maintenance terminates, one end of test block is cut into cube and divide test block, carrying out cube again divides the compressive strength test of test block to obtain test figure.
The structure of centrifugal concrete intensity detection of the present invention die trial can be installed on band mould pile tube by tensioning nut and be put into the centrifugal treating of hydro-extractor carrying out equal technique; And the axis of tensioning nut and described cavity pass the dead in line of top board and base plate, therefore make the concrete in die trial can be subject to uniform centrifugal force when centrifugation, actual strength after final formation and nearly pile tube concrete centrifugal, tests the test findings that obtains more close to the real intensive parameter of pile tube concrete to obtained concrete test block like this.And the centrifugal operation of this centrifugal concrete intensity detection die trial and the centrifugal operation of pile tube complete jointly, save time cost and more close to pile tube intensity after centrifugal processing.
Accompanying drawing explanation
Fig. 1 is the structural representation of centrifugal concrete intensity detection of the present invention die trial.
Fig. 2 is the schematic diagram after centrifugal concrete intensity detection of the present invention die trial is connected to the tensioning screw rod of band mould pile tube.
Fig. 3 is the schematic top plan view of the concrete test block obtained.
Embodiment
Refer to shown in Fig. 1, the invention discloses the die trial of a kind of centrifugal concrete intensity detection, comprise base plate 1, top board 2, biside plate 3 and be positioned at the two end plates 4 at biside plate 3 two ends, base plate 1, top board 2, biside plate 3 and two end plates 4 form the concrete cavity 5 of collecting jointly, described base plate 1 outside surface is connected with tensioning nut 6, during use, this tensioning nut 6 is installed on a tensioning screw rod 12 being with mould pile tube 11 (as shown in Figure 2), and the axis of described tensioning nut 6 and described cavity 5 pass the dead in line of top board 2 and base plate 1.
In order to various piece being located and fixing, be connected with two the first upper and lower mould coupling bolts 7 and two the second upper and lower mould coupling bolts 8 between described top board 2 and base plate 1, described two the first upper and lower mould coupling bolts 7 lay respectively at the outside of biside plate 3 and connect the side part of top board 2 and base plate 1.Two the second upper and lower mould coupling bolts 8 lay respectively at the outside of two end plates 4 and connect the two end portions of top board 2 and base plate 1.Be connected with two side plate coupling bolts 9 between described two side plates 3, described two side plate coupling bolts 9 lay respectively at the outside of two end plates 4 and connect biside plate 3; Described side plate coupling bolt 9 is provided with the pilot hole 10 run through up and down, and described second upper and lower mould coupling bolt 7 is inserted in this pilot hole 10.What described biside plate 3 inside surface was corresponding is provided with locating slot (non-label), and the both sides of described end plate 4 are snapped in the locating slot of both sides side plate 3 respectively.
Preferably be of a size of, the top board 2 of die trial and base plate 1 adopt the steel plate being not less than Q235 intensity, and side plate 3 and end plate 4 adopt the cast iron plate being not less than HT200 intensity.The inside surface of die trial should be smooth, must not have sand holes crackle and scuffing, and the roughness Ra of die trial inside surface must not be greater than 3.2um; Inside dimension error after die trial assembling should not be greater than nominal size ± 0.2% and ± 1mm should be not more than; After die trial assembling, its adjacent side and top and bottom should be at a right angle, and right angle error must not be greater than ± and 0.3 °; Die trial inner chamber 5 side, end face, the every 100mm of top and bottom flatness error should not be greater than 0.04mm; The flatness error of locating surface should not be greater than 0.06mm; The gap of die trial assembling its joint face of later stage must not be greater than 0.2mm, and end plate 4 must not be greater than 0.4mm with the gap of side.
The centrifugal concrete strength detecting method of above-mentioned centrifugal concrete intensity detection die trial is used to be:
Open top board 2, production pile tube is loaded the cavity 5 of centrifugal concrete die trial with concrete after, top board 2 is fixed with base plate 1 by the first upper and lower mould coupling bolt 7 and the second upper and lower mould coupling bolt 8, biside plate 2 is fixed by side plate coupling bolt 9;
Then the tensioning nut 6 that the die trial of concrete centrifugal concrete intensity detection is housed is screwed on the tensioning screw rod 12 of the band mould pile tube 11 that the identical stretch-draw of external diameter terminates, again the band mould pile tube 11 with centrifugal concrete die trial is put into the centrifugal treating of hydro-extractor (not shown) carrying out equal technique, carry out the steam normal temperature maintenance of equal technique together with pipe die after centrifugal treating terminates, after normal temperature maintenance, unload lower testing mould, concrete now forms test block 13 by centrifuging process, as shown in Figure 3, this test block 13 and pile tube are carried out the vapor injection maintenance of equal technique, after maintenance terminates, one end of test block is cut into cube and divide test block 14, carrying out cube again divides the compressive strength test of test block 14 to obtain test figure.Due to centrifugation, center circle both sides concrete, with center circle, is cut into two cubes and divides test block 14 by described test block 14.In the present embodiment, the shape of described cavity 5 is cuboid, and the length of cavity 5 is identical with corresponding pile tube diameter, under equal centrifuging process, its centrifugal radius is identical so more can react tubular pile centrifugal truly after the actual conditions of its pile concrete.
Prestressed high-strength concrete pile concrete is after centrifugal, its water cement ratio diminishes, the concrete structure of difference because of centrifuging process, packing, concrete densities etc. all change a lot, prestressed high-strength concrete pile pile body after centrifugal and the concrete actual strength of pile tube stress surface be ensure one of prestressed high-strength concrete pile important quality index, by repeatedly identical concrete is carried out centrifugal after the compressive strength that records, unit weight and the concrete strength adopting the detection method of GB/T50081-2002 to record and unit weight contrast, concrete data see the following form:
Can be found out by above test figure, centrifugally to diminish because of concrete water cement ratio afterwards, more closely knit, concrete density increases, and the concrete crushing strength after centrifugal is also than concrete strength height about 10MPa time not centrifugal.So the pile tube concrete strength that records of the detection method of GB/T50081-2002 can not the centrifugal rear concrete strength of actual response, detection method of the present invention can directly measure centrifugal after concrete strength, its intensity level is closer to the concrete strength of tubular pile body.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. centrifugal concrete intensity detection die trial, it is characterized in that: comprise base plate, top board, biside plate and be positioned at the two end plates at biside plate two ends, base plate, top board, biside plate and two end plates form the concrete cavity of collecting jointly, described plate outer surface is connected with tensioning nut, and the axis of described tensioning nut and described cavity pass the dead in line of top board and base plate.
2. centrifugal concrete intensity detection according to claim 1 die trial, is characterized in that: described tensioning nut is installed on the tensioning screw rod of a band mould pile tube.
3. centrifugal concrete intensity detection according to claim 1 and 2 die trial, it is characterized in that: between described top board and base plate, be connected with two the first upper and lower mould coupling bolts and two the second upper and lower mould coupling bolts, described two the first upper and lower mould coupling bolts lay respectively at the outside of biside plate and connect the side part of top board and base plate, and two the second upper and lower mould coupling bolts lay respectively at the outside of two end plates and connect the two end portions of top board and base plate; Be connected with two side plate coupling bolts between described two side plates, described two side plate coupling bolts lay respectively at the outside of two end plates and connect biside plate; Described side plate coupling bolt is provided with the pilot hole run through up and down, and described second upper and lower mould coupling bolt is inserted in this pilot hole.
4. centrifugal concrete intensity detection according to claim 3 die trial, is characterized in that: what described biside plate inside surface was corresponding is provided with locating slot, and the both sides of described end plate are snapped in the locating slot of both sides side plate respectively.
5. use a centrifugal concrete strength detecting method for the centrifugal concrete intensity detection die trial according to any one of claim 1-4, it is characterized in that comprising the following steps:
Open top board, will produce after pile tube concrete loads the cavity of centrifugal concrete die trial, top board is fixed by the first upper and lower mould coupling bolt and the second upper and lower mould coupling bolt and base plate, biside plate is fixed by side plate coupling bolt;
Then the tensioning nut that the die trial of concrete centrifugal concrete intensity detection is housed is screwed on the tensioning screw rod of the band mould pile tube that the identical stretch-draw of external diameter terminates, again the band mould pile tube with centrifugal concrete die trial is put into the centrifugal treating of hydro-extractor carrying out equal technique, carry out the steam normal temperature maintenance of equal technique together with pipe die after centrifugal treating terminates, after normal temperature maintenance, take apart a die, concrete now forms test block by centrifuging process, this test block and pile tube are carried out the vapor injection maintenance of equal technique, after maintenance terminates, one end of test block is cut into cube and divide test block, carrying out cube again divides the compressive strength test of test block to obtain test figure.
6. centrifugal concrete strength detecting method according to claim 5, is characterized in that: the shape of described cavity is cuboid, and the length of cavity is identical with corresponding pile tube diameter.
7. centrifugal concrete strength detecting method according to claim 6, is characterized in that: center circle both sides concrete, with center circle, is cut into two cubes and divides test block by described test block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045917.3A CN103792120B (en) | 2014-02-08 | 2014-02-08 | The die trial of centrifugal concrete intensity detection and centrifugal concrete strength detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045917.3A CN103792120B (en) | 2014-02-08 | 2014-02-08 | The die trial of centrifugal concrete intensity detection and centrifugal concrete strength detecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103792120A CN103792120A (en) | 2014-05-14 |
| CN103792120B true CN103792120B (en) | 2016-01-20 |
Family
ID=50667996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410045917.3A Active CN103792120B (en) | 2014-02-08 | 2014-02-08 | The die trial of centrifugal concrete intensity detection and centrifugal concrete strength detecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103792120B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034564A (en) * | 2014-06-17 | 2014-09-10 | 嘉兴学院 | Foam concrete heat conductivity test mold and assembling method thereof |
| CN105223053B (en) * | 2015-10-08 | 2018-11-13 | 湖南科技大学 | A kind of analog simulation experiment experiment test block producing device |
| CN109100213B (en) * | 2018-09-17 | 2020-12-04 | 广东华坤建设集团有限公司 | Concrete strength detection device of assembled stair |
| CN112362443A (en) * | 2020-12-04 | 2021-02-12 | 河南双建科技发展股份有限公司 | Special test mould for detecting flexural strength of centrifugal concrete |
| CN112697676A (en) * | 2020-12-23 | 2021-04-23 | 河南双建科技发展股份有限公司 | Centrifugal concrete water penetration resistance detects uses examination mould |
| CN113405885B (en) * | 2021-06-18 | 2022-12-20 | 金陵科技学院 | Preparation device of centrifugal concrete standard test piece |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202018393U (en) * | 2011-03-11 | 2011-10-26 | 中国建筑第八工程局有限公司 | Mould for measuring concrete temperature constrained strain |
| FR2975626A1 (en) * | 2011-05-27 | 2012-11-30 | Remy Rousset | Metal mold for manufacturing concrete test piece for traceability and quality control operations of concrete casting in e.g. building, has bottom formed with opening to receive expulsion unit, where opening is sealed by closure unit |
| CN202745040U (en) * | 2012-08-01 | 2013-02-20 | 天津建城基业集团有限公司 | Prestressed concrete centrifugal square pile and molding die thereof |
| CN203092753U (en) * | 2012-11-19 | 2013-07-31 | 江苏建华管桩有限公司 | Concrete centrifugal test die |
| CN203758809U (en) * | 2014-02-08 | 2014-08-06 | 江苏建华管桩有限公司 | Test mold for detecting strength of centrifugal concrete |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050211871A1 (en) * | 2003-07-29 | 2005-09-29 | Ness John T | Interlocking masonry blocks and method and system of making interlocking masonry blocks |
-
2014
- 2014-02-08 CN CN201410045917.3A patent/CN103792120B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202018393U (en) * | 2011-03-11 | 2011-10-26 | 中国建筑第八工程局有限公司 | Mould for measuring concrete temperature constrained strain |
| FR2975626A1 (en) * | 2011-05-27 | 2012-11-30 | Remy Rousset | Metal mold for manufacturing concrete test piece for traceability and quality control operations of concrete casting in e.g. building, has bottom formed with opening to receive expulsion unit, where opening is sealed by closure unit |
| CN202745040U (en) * | 2012-08-01 | 2013-02-20 | 天津建城基业集团有限公司 | Prestressed concrete centrifugal square pile and molding die thereof |
| CN203092753U (en) * | 2012-11-19 | 2013-07-31 | 江苏建华管桩有限公司 | Concrete centrifugal test die |
| CN203758809U (en) * | 2014-02-08 | 2014-08-06 | 江苏建华管桩有限公司 | Test mold for detecting strength of centrifugal concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103792120A (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103792120B (en) | The die trial of centrifugal concrete intensity detection and centrifugal concrete strength detecting method | |
| WO2019140874A1 (en) | Method for evaluating breaking strength of first and second cementing faces for well cementing under dynamic load | |
| CN103956109B (en) | A kind of tunnel model test method that liner structure joint stiffness is variable | |
| CN101762459B (en) | Bonding and drawing test clamp and forming mould for cement mortar | |
| CN105352884A (en) | Experiment method and experiment member for testing bond strength of concrete and coal, rock or concrete | |
| CN105759017A (en) | Device and method for evaluating anti-crack performance of external squares and internal circles of cement-based materials | |
| CN107884258B (en) | Die set | |
| CN203758809U (en) | Test mold for detecting strength of centrifugal concrete | |
| CN106959270A (en) | Cement the well an interface cementing strength curing means, test device and method of testing | |
| CN204556375U (en) | A kind of concrete crushing strength measures test specimen locating device | |
| CN106404524B (en) | Device and method for identifying horizontal radial deformation of soil sample in static triaxial test | |
| CN201883380U (en) | Steel sand cylinder temporary support | |
| CN107121336B (en) | Method for establishing uniaxial compressive strength curve of sandy mudstone | |
| CN208968910U (en) | The maintenance mould of hardened oilwell cement triaxial compressions sample | |
| CN107169162A (en) | A kind of bolt strength simplified calculation method | |
| CN109283113B (en) | Concrete impermeability test device and test method for eliminating horizontal hoop pressure | |
| CN102830059B (en) | Combined metal shrink ring for lateral restricted expansion test for rock | |
| CN105067402A (en) | Mold used for preparing test piece for tensile strength testing and application method thereof | |
| CN203572696U (en) | Stress control type geotechnical sample compactor | |
| CN209148688U (en) | A kind of adjustable concrete early-stage crack resistance experimental rig | |
| CN205538396U (en) | Well cementation cement stone triaxial test specimen preparation mould | |
| CN204027695U (en) | A kind of device of test engine exhaust manifold vibration | |
| CN109115618B (en) | Testing device and testing method for pressure bearing capacity of flat rubber bag product | |
| CN105675370A (en) | Method and mould for preparing traixial test sample of well-cementing cement stone | |
| CN116165366A (en) | Crack rock mass slip casting analogue test platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212413 Jiangsu Jianhua pipe pile Co., Ltd. of Zhenjiang Town, Jurong City, Jiangsu Province Patentee after: Jianhua building materials (Jiangsu) Co., Ltd. Address before: 212413 Jiangsu Jianhua pipe pile Co., Ltd. of Zhenjiang Town, Jurong City, Jiangsu Province Patentee before: Jiangsu builds China pipe pile Co., Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 212413 the development zone along the Yangtze River in Xia Shu Town, Jurong City, Zhenjiang, Jiangsu Patentee after: Jianhua building materials (China) Co., Ltd. Address before: 212413 Jianjiang pipe pile Co., Ltd., Jiangsu, Jiangsu, Zhenjiang, Jurong Patentee before: Jianhua building materials (Jiangsu) Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Test mold for centrifugal concrete strength detection and centrifugal concrete strength detection method Effective date of registration: 20210927 Granted publication date: 20160120 Pledgee: Industrial Bank Co.,Ltd. Zhenjiang Branch Pledgor: JIANHUA CONSTRUCTION MATERIALS (CHINA) Co.,Ltd. Registration number: Y2021980009958 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |