CN202649075U - Simple segregation intensity evaluation equipment for fresh mixed concrete - Google Patents
Simple segregation intensity evaluation equipment for fresh mixed concrete Download PDFInfo
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- CN202649075U CN202649075U CN 201220318598 CN201220318598U CN202649075U CN 202649075 U CN202649075 U CN 202649075U CN 201220318598 CN201220318598 CN 201220318598 CN 201220318598 U CN201220318598 U CN 201220318598U CN 202649075 U CN202649075 U CN 202649075U
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Abstract
Simple segregation intensity evaluation equipment for fresh mixed concrete comprises a vibrating part and a test part. The vibrating part and the test part are both in cylinder shape and connected with each other by a magnet inside the vibrating part. The simple segregation intensity evaluation equipment for the fresh mixed concrete is provided with an upper material container and a lower material container. A reasonable imitation of layering phenomenon between aggregate and thin pulp in the fresh mixed concrete after concrete vibrating of the fresh mixed concrete can be achieved through vibration of vibrostand. Segregation situation of the fresh mixed concrete can be objectively evaluated before construction and correction of proportions of concrete mix in an early stage and reduction of damage caused by segregation can be achieved. The simple segregation intensity evaluation equipment for the fresh mixed concrete is simple in structure, convenient to operate, low in energy consumption, fine in economic value and high in practical value.
Description
Technical field
The utility model belongs to the civil engineering work concrete field, relates to a kind of brief appraisal equipment, especially a kind of fresh concrete segregation degree brief appraisal equipment.
Background technology
Concrete segregation is that the cohesive strength between the concrete mix composition material is not enough to resist coarse aggregate, and the concrete mix composition is separated from each other, and causes the inhomogeneous phenomenon of inner the Nomenclature Composition and Structure of Complexes.Be usually expressed as coarse aggregate and mortar is separated from each other, the bottom of the large mixture of particle deposition that for example density is large, perhaps overall separation is out from mixture for coarse aggregate.
Concrete disintegration affects concrete workability, causes sticking tank, plugging, affects the duration etc., reduces economic benefit.Affect the apparent effect of xoncrete structure, the phenomenons such as sand streak, aggregate exposure, reinforcing steel bars exposed appear in concrete surface.Concrete strength is significantly descended, have a strong impact on xoncrete structure carrying cage power, destroy the security performance of structure, serious will causing done over again, and causes huge economic loss.Concrete homogeneity is poor, causes the contraction at each position of concrete inconsistent, easily produces concrete shrinkage crack.Particularly when the construction concrete floor, because concrete disintegration thickens the grout layer on top layer, shrink sharply increase, the serious cracking phenomenon occurs.The concrete endurance qualities such as concrete impervious, freeze proof have greatly been reduced.
At present, general method is slump method and the vigorous denseness method of dimension both at home and abroad, and the slump method is indirectly to reflect the concrete education resistance energy of reaction by cohesiveness, for newly mixing cement concrete, because slump is not suitable for more greatly using the slump method.Can not directly react concrete through the distribution situation of inner aggregate after the jolt ramming and tie up vigorous denseness method.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of fresh concrete segregation degree brief appraisal equipment is provided, this equipment is emanated for fresh concrete, can directly reflect objectively concrete segregation level, has very high practical value.
The purpose of this utility model solves by the following technical programs:
A kind of fresh concrete segregation degree brief appraisal equipment, involving vibrations parts and test parts; Described vibrating mass and test parts are cylindrical shape, by the magnet in the vibrating mass two parts are linked together.
Above-mentioned vibrating mass comprises the base that is arranged on the bottom support superstructure, is superimposed upon successively chamber one, chamber two shaking tables on the base; One inside, described chamber is provided with iron block, and two inside, chamber are provided with engine, and the inside of shaking table is provided with the magnet that attracts test parts bottom iron prop.
Above-mentioned test parts comprises the iron prop that is arranged on the bottom, and described iron prop embeds the top of shaking table, is disposed with lower material-containing chamber, disk and upper material-containing chamber on the described iron prop; Described test parts top is provided with charging aperture; One side of described disk and upper material-containing chamber is provided with the rotating shaft that material-containing chamber can be moved up and down, and the opposite side of upper material-containing chamber is provided with the fixedly lock that itself and lower material-containing chamber are fixed together; Be provided with the rubber washer that prevents that concrete mortar from flowing out from the slit between the material-containing chamber up and down between described upper material-containing chamber and the lower material-containing chamber.
The utility model setting is material-containing chamber up and down, vibration by shaking table, can reasonably simulate the vibrate lamination of aggregate and thin pulp in the concrete later of fresh concrete, objective appraisal fresh concrete segregation situation before construction, so that revise early concrete mix, reduce the harm that segregation brings; The utility model is simple in structure, easy to operate simultaneously, and energy resource consumption is few, good economy performance, and practical value is high.
Description of drawings
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the vertical view of the utility model disk.
Wherein: 1 is charging aperture; 2 is upper material-containing chamber; 3 are rotating shaft; 4 is disk; 5 is lower material-containing chamber; 6 is iron prop; 7 is shaking table; 8 is magnet; 9 is chamber two; 10 is chamber one; 11 is base; 12 is rubber washer; 13 are fixing lock.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1-2, this fresh concrete segregation degree brief appraisal equipment, involving vibrations parts and test parts; Described vibrating mass and test parts are cylindrical shape, by the magnet 8 in the vibrating mass two parts are linked together.
Above-mentioned vibrating mass comprises the base 11 that is arranged on the bottom support superstructure, is superimposed upon successively chamber 1, chamber 29 and shaking table 7 on the base 11; One 10 inside, described chamber are provided with iron block, and 29 inside, chamber are provided with engine, and the inside of shaking table 7 is provided with the magnet 8 that attracts test parts bottom iron prop 6.
Above-mentioned test parts comprises the iron prop 6 that is arranged on the bottom, and described iron prop 6 embeds the top of shaking table 7, is disposed with lower material-containing chamber 5, disk 4 and upper material-containing chamber 2 on the described iron prop 6; Described test parts top is provided with charging aperture 1; Described disk 4 is provided with the rotating shaft 3 that material-containing chamber 2 can be moved up and down with a side of upper material-containing chamber 2, and the opposite side of upper material-containing chamber 2 is provided with the fixedly lock 13 that itself and lower material-containing chamber 5 are fixed together; Be provided with the rubber washer 12 that prevents that concrete mortar from flowing out from the slit between the material-containing chamber up and down between described upper material-containing chamber 2 and the lower material-containing chamber 5.
Concrete operation step is as follows:
With fixedly lock 13 lockings between upper material-containing chamber 2 and the lower material-containing chamber 5, then the quality of weighing test parts vertically is placed on the top test parts on the smooth ground; The concrete to be tested that mixes is carefully contained upper material-containing chamber 2 and the lower material-containing chamber 5 from charging aperture 1 equably.The little test parts of lifting of both hands is carefully gently knocked under the 2-3 on ground, eliminates the macropore in the concrete.Reduce test error.And make TOC concordant with charging aperture 1 bottom; Test parts carefully is put on the vibrating mass, and vibrating mass must be placed on the level ground; Open vibrating mass, make shaking platform 7 up-down vibration, and motoring ring test parts up-down vibration; Stop vibration behind the vibration 10s, measure upper material-containing chamber 2 tops without the height of concrete that fraction cylinder with ruler rapidly, thereby obtain material-containing chamber's 2 concrete height; Open rapidly fixing lock 13, little material-containing chamber 2 lower right corner that carry on are until upper material-containing chamber 2 can rotate centered by rotating shaft 3.Upper material-containing chamber 2 is rotated 180 °, receive the concrete that flows out from disk 4 left end circular holes with tube for feed; Take off test parts, the quality of weighing test parts this moment obtains lower material-containing chamber 5 concrete quality, calculates thus lower material-containing chamber 5 concrete density p
1Material-containing chamber's 2 concrete quality in the weighing calculate material-containing chamber's 2 concrete density p
2Calculate concrete disintegration coefficient I=ρ
1/ ρ
2The fresh concrete segregation possibility of the larger explanation preparation of the value of I is larger.
Claims (3)
1. a fresh concrete segregation degree brief appraisal equipment is characterized in that: involving vibrations parts and test parts; Described vibrating mass and test parts are cylindrical shape, by the magnet in the vibrating mass (8) two parts are linked together.
2. a kind of fresh concrete segregation degree brief appraisal equipment according to claim 1, it is characterized in that: described vibrating mass comprises the base (11) that is arranged on the bottom support superstructure, is superimposed upon successively chamber one (10), chamber two (9) and shaking table (7) on the base (11); One (10) inside, described chamber is provided with iron block, and two (9) inside, chamber are provided with engine, and the inside of shaking table (7) is provided with the magnet (8) that attracts test parts bottom iron prop (6).
3. a kind of fresh concrete segregation degree brief appraisal equipment according to claim 1, it is characterized in that: described test parts comprises the iron prop (6) that is arranged on the bottom, described iron prop (6) embeds the top of shaking table (7), is disposed with lower material-containing chamber (5), disk (4) and upper material-containing chamber (2) on the described iron prop (6); Described test parts top is provided with charging aperture (1); One side of described disk (4) and upper material-containing chamber (2) is provided with the rotating shaft (3) that material-containing chamber (2) can be moved up and down, and the opposite side of upper material-containing chamber (2) is provided with the fixedly lock (13) that itself and lower material-containing chamber (5) are fixed together; Be provided with the rubber washer (12) that prevents that concrete mortar from flowing out from the slit between the material-containing chamber up and down between described upper material-containing chamber (2) and the lower material-containing chamber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318598 CN202649075U (en) | 2012-07-03 | 2012-07-03 | Simple segregation intensity evaluation equipment for fresh mixed concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318598 CN202649075U (en) | 2012-07-03 | 2012-07-03 | Simple segregation intensity evaluation equipment for fresh mixed concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202649075U true CN202649075U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220318598 Expired - Fee Related CN202649075U (en) | 2012-07-03 | 2012-07-03 | Simple segregation intensity evaluation equipment for fresh mixed concrete |
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| CN (1) | CN202649075U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926170A (en) * | 2014-04-14 | 2014-07-16 | 长安大学 | Device and method for testing adhesive aggregation performance of cold patch asphalt mixture |
| CN104865156A (en) * | 2015-05-15 | 2015-08-26 | 长安大学 | Device and method for evaluating segregation degree of cement concrete |
| CN105606791A (en) * | 2015-12-28 | 2016-05-25 | 河海大学 | Device and method for testing segregation degree of cement stabilized macadam |
| CN107202747A (en) * | 2017-06-16 | 2017-09-26 | 中国矿业大学 | Mineral grain coagulation Tachistoscope instrument and its method |
| CN108061793A (en) * | 2017-12-15 | 2018-05-22 | 哈尔滨工业大学 | A kind of test device and test method of fresh concrete isolation degree |
| CN109884285A (en) * | 2019-03-06 | 2019-06-14 | 山东省交通科学研究院 | A kind of test method for Under Concrete isolation degree of vibrating |
-
2012
- 2012-07-03 CN CN 201220318598 patent/CN202649075U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926170A (en) * | 2014-04-14 | 2014-07-16 | 长安大学 | Device and method for testing adhesive aggregation performance of cold patch asphalt mixture |
| CN103926170B (en) * | 2014-04-14 | 2015-11-18 | 长安大学 | A kind of cold repairing asphalt mixture adhesive aggregation performance testing device and method of testing |
| CN104865156A (en) * | 2015-05-15 | 2015-08-26 | 长安大学 | Device and method for evaluating segregation degree of cement concrete |
| CN105606791A (en) * | 2015-12-28 | 2016-05-25 | 河海大学 | Device and method for testing segregation degree of cement stabilized macadam |
| CN105606791B (en) * | 2015-12-28 | 2017-05-24 | 河海大学 | Device and method for testing segregation degree of cement stabilized macadam |
| CN107202747A (en) * | 2017-06-16 | 2017-09-26 | 中国矿业大学 | Mineral grain coagulation Tachistoscope instrument and its method |
| CN108061793A (en) * | 2017-12-15 | 2018-05-22 | 哈尔滨工业大学 | A kind of test device and test method of fresh concrete isolation degree |
| CN109884285A (en) * | 2019-03-06 | 2019-06-14 | 山东省交通科学研究院 | A kind of test method for Under Concrete isolation degree of vibrating |
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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: 20130102 Termination date: 20160703 |