CN111596040A - Method and device for testing concrete construction performance under vibration action - Google Patents
Method and device for testing concrete construction performance under vibration action Download PDFInfo
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- CN111596040A CN111596040A CN201910820463.5A CN201910820463A CN111596040A CN 111596040 A CN111596040 A CN 111596040A CN 201910820463 A CN201910820463 A CN 201910820463A CN 111596040 A CN111596040 A CN 111596040A
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- 239000004567 concrete Substances 0.000 title claims abstract description 77
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 230000009471 action Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000009736 wetting Methods 0.000 claims abstract description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 238000005056 compaction Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/0046—In situ measurement during mixing process
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a method and a device for testing the construction performance of concrete under the action of vibration, wherein the method comprises the following testing steps: 1) placing the testing device on a solid plane to enable the four bases 1 to be relatively stable, and wetting the upper surface by using wet cloth; 2) placing the wetted slump cone in the middle of the top plate 2 of the device; 3) filling the stirred concrete into a slump cone, and enabling the surface of the concrete to be flush with the upper opening of the slump cone; 4) lifting the slump cone to enable the concrete to freely flow under the action of gravity; 5) after the concrete stops flowing, testing and recording the slump of the concrete; 6) starting the attached vibrator 3 on the device to drive the spring 4 to vibrate at a certain frequency and amplitude, so that the concrete continues to flow under the vibration action; 7) the slump of the concrete was measured again after the flow was stopped. The method can effectively evaluate the difficulty of concrete compaction under the vibration construction condition, has the characteristics of convenient operation, high test precision, suitability for construction sites and the like, is particularly suitable for evaluating and testing the construction performance of the plate-shaped or strip-shaped structure concrete of railway engineering track plates, sleepers and the like which are constructed by attaching the vibrator for assistance, and can also be used for evaluating and testing the construction performance of other structure concrete which is constructed by inserting the vibrator for assistance.
Description
Technical Field
The invention belongs to the technical field of testing of building materials, and particularly relates to a method and a device for testing the construction performance of concrete under the vibration action, which are particularly suitable for evaluating and testing the construction performance of concrete with a plate-shaped or strip-shaped structure under the auxiliary construction of an attached vibrator, such as a railway engineering track plate, a sleeper and the like, and can also be used for evaluating and testing the construction performance of concrete with other structures under the auxiliary construction of vibration by inserting the vibrator.
Background
In the concrete construction process, in order to ensure that the concrete at the position of the low-fluidity or steel bar arrangement dense structure is compacted and formed, a method of attaching vibration or inserting vibration is generally adopted. However, the conventional concrete working performance evaluation method in the indoor test does not consider the construction process of auxiliary vibration or insertion vibration, so that the actual performance of the concrete in the construction process cannot be effectively reflected by the indoor test result.
Disclosure of Invention
Aiming at the technical current situation of a concrete construction performance evaluation method under the condition of lack of vibration, the invention provides a method and a device for testing the concrete working performance under the action of effective reaction adhesion vibration and insertion vibration, so as to realize the evaluation and control of the working performance of the vibration-formed concrete mixture.
The technical scheme of the invention is as follows: a method and a device for testing the construction performance of concrete under the action of vibration comprise the following testing steps: 1) placing the testing device on a solid plane to enable the four bases 1 to be relatively stable, and wetting the upper surface by using wet cloth; 2) placing the wetted slump cone in the middle of the top plate 2 of the device; 3) filling the stirred concrete into a slump cone, and enabling the surface of the concrete to be flush with the upper opening of the slump cone; 4) lifting the slump cone to enable the concrete to freely flow under the action of gravity; 5) after the concrete stops flowing, testing and recording the slump of the concrete; 6) starting the attached vibrator 3 on the device to drive the spring 4 to vibrate at a certain frequency and amplitude, so that the concrete continues to flow under the vibration action; 7) the slump of the concrete was measured again after the flow was stopped.
In the invention, the top plate is a hard and non-absorbent smooth square flat plate, the side length is 900mm, and the maximum deflection is not more than 3 mm.
In the invention, the free length of the spring is 10mm, and the rigidity is 200N/mm.
In the invention, the attached vibrators are symmetrically distributed on the outer side of the top plate, and the vibration frequency is adjustable within the range of 0-50 Hz.
The mechanism of the invention is as follows:
the concrete with the slump measured conventionally continues to flow under the vibration action of the attached vibrator, so that the difficulty degree of concrete compaction in the vibration forming process is reflected.
The invention has the beneficial effects that:
(1) the invention provides an evaluation method of concrete construction performance under the vibration effect, which can truly reflect the concrete construction performance under the vibration forming effect;
(2) the design of the concrete mixing proportion can be optimized according to the change condition of the concrete slump under the same vibration frequency, and the selection and the arrangement density of the auxiliary vibrators on the construction site can be guided according to the flowing state of the concrete with the specific mixing proportion under different vibration frequencies.
(3) The test equipment is simple, and the test method is convenient.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings described below are only one embodiment of the invention, and that other drawings may be derived from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a device for testing the working performance of concrete under the action of vibration.
Wherein, 1 is a base; 2 is a top plate; 3 is an attached vibrator; and 4 is a spring.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples with reference to the accompanying drawings.
Example 1: the testing device is arranged on the horizontal ground, so that the stability of the base is ensured. Wet the top plate with a damp cloth and clear excess of clear water. Placing the slump cone in the middle of the top plate, filling the concrete prepared according to the table 1 into the slump cone, and scraping the concrete by using a spatula to enable the concrete surface to be flush with the upper opening of the slump cone. Lifting the slump cone to make the concrete flow on the top plate under the action of self gravity, and measuring and recording the initial slump H of the concrete1. And starting the adhering vibrator to make the concrete in the static state flow continuously under the vibration action. After the concrete stops flowing, the attached vibrator is closed, and the vibration slump H of the concrete is measured and recorded2。
TABLE 1 concrete mix proportion (kg/m 3)
| Cement | Fly ash | River sand | Crushing stone | Water (W) | Water reducing agent |
| 280 | 120 | 735 | 1101 | 154 | 4 |
The test shows that the initial slump of the concrete is H1=140mm, vibration slump H2=150 mm. From the test results, the concrete mix proportion prepared according to table 1 is difficult to be compacted under the vibration conditions adopted in the test, and the concrete mix proportion is further optimized (the concrete fluidity is improved) or the number of vibration devices and the vibration frequency are increased in the construction process.
Example 2: the testing device is arranged on the horizontal ground, so that the stability of the base is ensured. Wet the top plate with a damp cloth and clear excess of clear water. And placing the slump cone in the middle of the top plate, filling the prepared concrete into the slump cone, and scraping by using a spatula to enable the concrete surface to be level to the upper opening of the slump cone. Lifting the slump cone to make the concrete flow on the top plate under the action of self gravity, measuring and recording the initial slump H of the concrete1. And starting the adhering vibrator to make the concrete in the static state flow continuously under the action of vibration. After the concrete stops flowing, the attached vibrator is closed, and the vibration slump H of the concrete is measured and recorded2。
The test shows that the initial slump of the concrete is H1180mm, vibration slump H2220 mm. According to the test results, the prepared concrete is easy to compact and form under the vibration condition adopted by the test, the using amount of the concrete cementing material or the single-material water consumption of the concrete can be properly reduced in the construction process, the number of vibration devices can be properly reduced or the vibration frequency can be properly reduced, and the technical economy is improved.
According to the embodiment, the method and the device for testing the working performance of the concrete under the vibration action can effectively evaluate the difficulty of the dense forming of the concrete under the vibration construction condition, so that the layout number and the operation evaluation rate of the vibration device in the concrete mix proportion design and construction process are guided, and the technical economy is improved.
The embodiments described above are intended to enable those skilled in the art to understand and apply the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.
Claims (4)
1. A method and a device for testing the working performance of concrete under the action of vibration are characterized in that: 1) placing the testing device on a solid plane to enable the four bases 1 to be relatively stable, and wetting the upper surface by using wet cloth; 2) placing the wetted slump cone in the middle of the top plate 2 of the device; 3) filling the stirred concrete into a slump cone, and enabling the surface of the concrete to be flush with the upper opening of the slump cone; 4) lifting the slump cone to enable the concrete to freely flow under the action of gravity; 5) after the concrete stops flowing, testing and recording the slump of the concrete; 6) starting the attached vibrator 3 on the device to drive the spring 4 to vibrate at a certain frequency and amplitude, so that the concrete continues to flow under the vibration action; 7) the slump of the concrete was measured again after the flow was stopped.
2. The method and the device for testing the construction performance of the concrete under the vibration action according to claim 1 are characterized in that: the top plate is a hard and non-absorbent smooth square flat plate, the side length is 900mm, and the maximum deflection is not more than 3 mm.
3. The method and the device for testing the construction performance of the concrete under the vibration action according to claim 1 are characterized in that: the free length of the spring is 10mm, and the rigidity is 200N/mm.
4. The method and the device for testing the construction performance of the concrete under the vibration action according to claim 1 are characterized in that: the attached vibrators are symmetrically distributed on the outer side of the top plate, and the vibration frequency is adjustable within the range of 0-50 Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820463.5A CN111596040B (en) | 2019-09-02 | 2019-09-02 | Method and device for testing concrete construction performance under vibration effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820463.5A CN111596040B (en) | 2019-09-02 | 2019-09-02 | Method and device for testing concrete construction performance under vibration effect |
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| Publication Number | Publication Date |
|---|---|
| CN111596040A true CN111596040A (en) | 2020-08-28 |
| CN111596040B CN111596040B (en) | 2023-04-28 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322602A (en) * | 2002-04-30 | 2003-11-14 | Fujita Corp | Testing method for evaluating material separation resistance of high liquidity concrete |
| JP2006010381A (en) * | 2004-06-23 | 2006-01-12 | Takenaka Komuten Co Ltd | Concrete filling property evaluation method, concrete separation testing device, and vibration flow testing device |
| JP2009281798A (en) * | 2008-05-21 | 2009-12-03 | Ube Ind Ltd | Method and apparatus for evaluating and testing flowability of concrete |
| JP4981984B1 (en) * | 2011-09-05 | 2012-07-25 | 大成建設株式会社 | Properties evaluation method of fresh concrete |
| CN102778556A (en) * | 2011-05-09 | 2012-11-14 | 同济大学 | Testing method for working performance of concrete and apparatus implementing same |
| CN105806745A (en) * | 2016-03-18 | 2016-07-27 | 中国建筑股份有限公司 | Device and method for detecting working performance of pervious concrete |
| CN106596907A (en) * | 2016-12-15 | 2017-04-26 | 中国铁道科学研究院铁道建筑研究所 | Test method for evaluating form maintaining ability of fresh concrete |
| CN107422106A (en) * | 2017-08-03 | 2017-12-01 | 河海大学 | A kind of method that in situ quantitation assesses the anti-isolation characteristic of fresh concrete material |
| CN108709979A (en) * | 2018-05-28 | 2018-10-26 | 中国铁道科学研究院铁道建筑研究所 | A kind of testing equipment and method for evaluating product concrete formability energy |
| CN109030795A (en) * | 2018-08-28 | 2018-12-18 | 交通运输部公路科学研究所 | The testing equipment and test method of indoor test concrete mix lateral deformation amount |
| CN109541187A (en) * | 2018-11-30 | 2019-03-29 | 佛山科学技术学院 | A kind of slump consistancy test instrument |
| CN112269017A (en) * | 2020-10-10 | 2021-01-26 | 储成成 | A concrete slump survey device for construction |
-
2019
- 2019-09-02 CN CN201910820463.5A patent/CN111596040B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322602A (en) * | 2002-04-30 | 2003-11-14 | Fujita Corp | Testing method for evaluating material separation resistance of high liquidity concrete |
| JP2006010381A (en) * | 2004-06-23 | 2006-01-12 | Takenaka Komuten Co Ltd | Concrete filling property evaluation method, concrete separation testing device, and vibration flow testing device |
| JP2009281798A (en) * | 2008-05-21 | 2009-12-03 | Ube Ind Ltd | Method and apparatus for evaluating and testing flowability of concrete |
| CN102778556A (en) * | 2011-05-09 | 2012-11-14 | 同济大学 | Testing method for working performance of concrete and apparatus implementing same |
| JP4981984B1 (en) * | 2011-09-05 | 2012-07-25 | 大成建設株式会社 | Properties evaluation method of fresh concrete |
| CN105806745A (en) * | 2016-03-18 | 2016-07-27 | 中国建筑股份有限公司 | Device and method for detecting working performance of pervious concrete |
| CN106596907A (en) * | 2016-12-15 | 2017-04-26 | 中国铁道科学研究院铁道建筑研究所 | Test method for evaluating form maintaining ability of fresh concrete |
| CN107422106A (en) * | 2017-08-03 | 2017-12-01 | 河海大学 | A kind of method that in situ quantitation assesses the anti-isolation characteristic of fresh concrete material |
| CN108709979A (en) * | 2018-05-28 | 2018-10-26 | 中国铁道科学研究院铁道建筑研究所 | A kind of testing equipment and method for evaluating product concrete formability energy |
| CN109030795A (en) * | 2018-08-28 | 2018-12-18 | 交通运输部公路科学研究所 | The testing equipment and test method of indoor test concrete mix lateral deformation amount |
| CN109541187A (en) * | 2018-11-30 | 2019-03-29 | 佛山科学技术学院 | A kind of slump consistancy test instrument |
| CN112269017A (en) * | 2020-10-10 | 2021-01-26 | 储成成 | A concrete slump survey device for construction |
Non-Patent Citations (6)
| Title |
|---|
| 凌海宇;田波;权磊;胡师杰;: "振动条件下基于扩展度的低坍落度混凝土工作性评价" * |
| 李亚龙;赵庆新;李化建;何小军;安同力;赵芸平;: "改进坍落度法测试自密实混凝土工作性" * |
| 杨鲁 等: "高速铁路灌注桩混凝土工作性能评价指标研究", 《混凝土》 * |
| 柯国炬 等: "一种低坍落度混凝土振动液化效果的评价方法", 《混凝土》 * |
| 郭凤双 等: "《建筑施工技术》", 31 March 2019, 西南交通大学出版社 * |
| 闫少杰 等: "振动搅拌对大流动性混凝土性能的影响", 《混凝土》 * |
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