CN203011788U - Detection device for uniformity of light-weight aggregate concrete - Google Patents
Detection device for uniformity of light-weight aggregate concrete Download PDFInfo
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- CN203011788U CN203011788U CN 201220602613 CN201220602613U CN203011788U CN 203011788 U CN203011788 U CN 203011788U CN 201220602613 CN201220602613 CN 201220602613 CN 201220602613 U CN201220602613 U CN 201220602613U CN 203011788 U CN203011788 U CN 203011788U
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- punching block
- aggregate concrete
- lightweight aggregate
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- steel mould
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Abstract
The utility model relates to a detection device for uniformity of light-weight aggregate concrete. The detection device comprises a first steel mould, a second steel mould and a third steel mould, wherein the three moulds are in the same size, and the first steel mould and the second steel mould are of hollow structures; the third steel mould is provided with a bottom seal; the first steel mould, the second steel mould and the third steel mould are orderly fixed from top to bottom so as to form a three-layer structure. The detection device can detect the uniformity of the light-weight aggregate concrete mixture.
Description
Technical field
The utility model relates to lightweight aggregate concrete detection technique field, particularly relates to a kind of pick-up unit of lightweight aggregate concrete homogeneity.
Background technology
The homogeneity of lightweight aggregate concrete refers to the degree of uniformity that mixes between each component of concrete.Due to one of the component in lightweight aggregate concrete coarse aggregate, apparent density is less, lighter weight, therefore very easily float in mixing concrete process and work progress, cause homogeneity of concrete poor, laminated segregation and bleeding occur, workability is bad, the final concrete quality that also will affect after hardening makes it the problem of mechanical property and endurance quality aspect occur.Therefore, it is particularly important that the detection of concrete mix homogeneity just seems, only has the good lightweight aggregate concrete mixture of homogeneity, could obtain good use value in engineering, guarantees construction quality.
Yet current method when estimating its mixture serviceability of lightweight aggregate concrete still is equal to normal concrete, only detects its workability (slump, cohesiveness, water-retaining property), the degree of uniformity of component is not detected, estimates.Such detection is incomplete, does not meet the characteristic of lightweight aggregate concrete self, and is not pointed, therefore needs a kind of detection method of lightweight aggregate concrete mix homogeneity, to address this problem.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of pick-up unit of lightweight aggregate concrete homogeneity, can the homogeneity of lightweight aggregate concrete mixture be detected.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of pick-up unit of lightweight aggregate concrete homogeneity is provided, comprises the first punching block, the second punching block and the 3rd punching block that size is identical, described the first punching block and the second punching block lead to structure in being; Described the 3rd punching block is provided with back cover; Described the first punching block, the second punching block and the 3rd punching block are from top to bottom fixed successively and are formed three-decker.
Described the first punching block, the second punching block and the 3rd punching block are cylindrical structural, and internal diameter is 200mm, are highly 100mm.
Described the first punching block, the second punching block and the 3rd punching block are from top to bottom fixed in mutually nested mode.
The upper end open peripheral weld of described the second punching block and the 3rd punching block is connected to be used to realizing steel ring mutually nested between punching block.
Steel ring on described the second punching block is higher than the upper end open 5mm of described the second punching block; Steel ring on described the 3rd punching block is higher than the upper end open 5mm of described the 3rd punching block.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the utility model compared with prior art, have following advantage and good effect: the utility model is divided into three layers by three pitch circle cylinder punching blocks with lightweight aggregate concrete, the utility model is take coarse aggregate as detected object, by the coarse aggregate quality of three layers of upper, middle and lowers in the weighing proving installation, can judge directly, clearly that concrete homogeneity is good and bad.
Description of drawings
Fig. 1 is cut-open view of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment of the present utility model relates to a kind of pick-up unit of lightweight aggregate concrete homogeneity, as shown in Figure 1, comprises the first punching block 1, the second punching block 2 and the 3rd punching block 3 that size is identical, and described the first punching block 1 and the second punching block 2 lead to structure in being; Described the 3rd punching block 3 is provided with back cover; Described the first punching block 1, the second punching block 2 and the 3rd punching block 3 are from top to bottom fixed successively and are formed three-decker.
In Fig. 1, described the first punching block 1, the second punching block 2 and the 3rd punching block 3 are cylindrical structural, and internal diameter is 200mm, is highly 100mm, and the end steel plate thickness of punching block wall and the 3rd punching block 3 is 2mm.It is large that oversize meeting causes measuring general assembly (TW), increases operation easier; If undersized, the concrete mix that holds is few, and the data of detection are not representative; Each several part is contour, guarantees that the concrete mix hold equates, makes the data that the later stage draws, and can objectively respond the equilibrium situation that coarse aggregate distributes in the mixture each several part.Described the first punching block 1, the second punching block 2 and the 3rd punching block 3 are from top to bottom fixed in mutually nested mode.The upper end open peripheral weld of described the second punching block 2 and the 3rd punching block 3 is connected to and can be used for realizing that mutually nested between punching block and thickness is the steel ring 4 of 2mm.Steel ring 4 on described the second punching block 2 is higher than the upper end open 5mm of described the second punching block 2, and the height that steel ring 4 and the second punching block 2 are welded to each other the place also is 5mm; Steel ring 4 on described the 3rd punching block 3 is higher than the upper end open 5mm of described the 3rd punching block 3, and the height that steel ring 4 and the 3rd punching block 3 are welded to each other the place also is 5mm.
A kind of method that detects the concrete mix homogeneity comprises the following steps:
(1) mix lightweight aggregate concrete mixture processed;
(2) layering of lightweight aggregate concrete mixture equivalent is packed in the pick-up unit (homogeneity analyzer) of lightweight aggregate concrete homogeneity, and floating surface;
(3) pick-up unit is placed on shaking table vibrates, stop vibration after 30s, after vibration stops, realizing each component sufficient movement in the lightweight aggregate concrete mixture;
(4) the lightweight aggregate concrete mixture in pick-up unit is successively taken out from top to bottom, and be placed on respectively each layer lightweight aggregate concrete mixture in clean container;
(5) water cleans, filters the lightweight aggregate concrete mixture, and the coarse aggregate in the lightweight aggregate concrete mixture is separated, and deposits respectively;
(6) drain coarse aggregate moisture, and with clean dry wipe, each layer coarse aggregate processed, make it reach surface dry condition;
(7) weigh respectively the quality of the dried coarse aggregate of each layer cleaning face;
(8) judge that by each layer coarse aggregate weight differential degree relatively homogeneity is good and bad.
Homogeneity index: K=(m1-m3) * 100%/(m1+m2+m3)
Wherein: K is lightweight aggregate concrete mixture homogeneity index, is expressed as a percentage; M1, m2, m3 are respectively the coarse aggregate quality of the cleaning surface dry condition of gained in the first punching block, the second punching block, the 3rd punching block, and unit is kg.The good and bad judgement of homogeneity: homogeneity index K≤3%, lightweight aggregate concrete mixture homogeneity is good; 3% ﹤ K≤6%, lightweight aggregate concrete mixture homogeneity is qualified; K〉6%, lightweight aggregate concrete mixture homogeneity is defective.
Claims (5)
1. the pick-up unit of a lightweight aggregate concrete homogeneity, comprise the first punching block (1), the second punching block (2) and the 3rd punching block (3) that size is identical, it is characterized in that, described the first punching block (1) and the second punching block (2) lead to structure in being; Described the 3rd punching block (3) is provided with back cover; Described the first punching block (1), the second punching block (2) and the 3rd punching block (3) are from top to bottom fixed successively and are formed three-decker.
2. the pick-up unit of lightweight aggregate concrete homogeneity according to claim 1, is characterized in that, described the first punching block (1), the second punching block (2) and the 3rd punching block (3) are cylindrical structural, and internal diameter is 200mm, is highly 100mm.
3. the pick-up unit of lightweight aggregate concrete homogeneity according to claim 1, is characterized in that, described the first punching block (1), the second punching block (2) and the 3rd punching block (3) are from top to bottom fixed in mutually nested mode.
4. the pick-up unit of lightweight aggregate concrete homogeneity according to claim 1, is characterized in that, the upper end open peripheral weld of described the second punching block (2) and the 3rd punching block (3) is connected to be used to realizing steel ring mutually nested between punching block (4).
5. the pick-up unit of lightweight aggregate concrete homogeneity according to claim 4, is characterized in that, the steel ring (4) on described the second punching block (2) is higher than the upper end open 5mm of described the second punching block (2); Steel ring (4) on described the 3rd punching block (3) is higher than the upper end open 5mm of described the 3rd punching block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602613 CN203011788U (en) | 2012-11-14 | 2012-11-14 | Detection device for uniformity of light-weight aggregate concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602613 CN203011788U (en) | 2012-11-14 | 2012-11-14 | Detection device for uniformity of light-weight aggregate concrete |
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| CN203011788U true CN203011788U (en) | 2013-06-19 |
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| CN 201220602613 Expired - Fee Related CN203011788U (en) | 2012-11-14 | 2012-11-14 | Detection device for uniformity of light-weight aggregate concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967519A (en) * | 2012-11-14 | 2013-03-13 | 宁波职业技术学院 | Device and method for detecting homogeneity of lightweight aggregate concrete |
| CN103675244A (en) * | 2013-12-03 | 2014-03-26 | 中建商品混凝土有限公司 | Concrete homogeneity testing method |
| CN108548915A (en) * | 2018-05-31 | 2018-09-18 | 广东水电二局股份有限公司 | A kind of quantitative detecting method through slipping the grinding coagulation soil aggregate separated sent |
-
2012
- 2012-11-14 CN CN 201220602613 patent/CN203011788U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967519A (en) * | 2012-11-14 | 2013-03-13 | 宁波职业技术学院 | Device and method for detecting homogeneity of lightweight aggregate concrete |
| CN103675244A (en) * | 2013-12-03 | 2014-03-26 | 中建商品混凝土有限公司 | Concrete homogeneity testing method |
| CN103675244B (en) * | 2013-12-03 | 2015-04-15 | 中建商品混凝土有限公司 | Concrete homogeneity testing method |
| CN108548915A (en) * | 2018-05-31 | 2018-09-18 | 广东水电二局股份有限公司 | A kind of quantitative detecting method through slipping the grinding coagulation soil aggregate separated sent |
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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 |
Granted publication date: 20130619 Termination date: 20141114 |
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| EXPY | Termination of patent right or utility model |