CN103091208A - Coarse aggregate angularity tester and application method of same - Google Patents
Coarse aggregate angularity tester and application method of same Download PDFInfo
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- CN103091208A CN103091208A CN2013100250498A CN201310025049A CN103091208A CN 103091208 A CN103091208 A CN 103091208A CN 2013100250498 A CN2013100250498 A CN 2013100250498A CN 201310025049 A CN201310025049 A CN 201310025049A CN 103091208 A CN103091208 A CN 103091208A
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- coarse aggregate
- material collecting
- collecting barrel
- coarse
- angularity
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Abstract
The invention discloses a coarse aggregate angularity tester and an application method of the same. A frame body is provided with a pair of vertical rods, a collection barrel is fixed on the frame body through a cross beam, the cross beam is connected with the vertical rods on the frame body in a sliding manner, the collection barrel is arranged along the vertical direction and is divided into an upper section and a lower section, the upper section is shaped like an isometric cylinder and the lower section is shaped like a conical cylinder, the diameter of the conical cylinder reduces gradually from top to bottom, and an opening part at the lower end of the collection barrel is provided with a valve for controlling the opening and the closing of opening part. The application method of the coarse aggregate angularity tester comprises the following steps of: A. regulating the height of the collection barrel to a proper position, and closing the valve on the collection barrel; B. pouring coarse aggregate into the collection barrel, leveling the surface by pouring, and refusing to disturb or scrape the coarse aggregate to be flat after the pouring; and C. opening the valve, starting a stopwatch simultaneously, stopping the stopwatch when all the coarse aggregate flows out, and reading the flowing time of the coarse aggregate. The tester is simple in structure, simplifies the test steps, and needs short test time and the test result can be quickly obtained.
Description
Technical field
The invention belongs to the technical field that earth material is measured, relate in particular to a kind of Coarse aggregates angularity analyzer and using method.
Background technology
Gathering materials refers to rise the pellet of skeleton and filling effect in compound, comprise rubble, gravel, Machine-made Sand, aggregate chips, sand etc.Gathering materials is divided into coarse aggregate and fine aggregate by grain size, and the general provision particle diameter is coarse aggregate greater than 4.75 millimeters persons, and as rubble and cobble, particle diameter is from being fine aggregate less than 4.75 millimeters persons, as natural sand.
The aggregate angularity main is profile and the surface roughness of gathering materials, and its frame strength and voidage to synthetic aggravation has a significant impact, and then affects the pavement performance of compound, and therefore, the evaluation of aggregate angularity is very important.
At present, the evaluation method for fine aggregate angularity is only arranged, for coarse aggregate, standard only has the using method of elongated particles, and not for the method for quantitatively evaluating that synthesizes Coarse aggregates angularity.But the faller gill shape just gathers materials for single, can be used for estimating the coarse aggregate profile of broken building stones, but and be not suitable for estimating the river shoal material, the perfectly round shape particle such as cobble also can't reflect and estimate the impact of the bulk properties that the corner angle synthetic coarse gathers materials.Design a kind of Coarse aggregates angularity analyzer of quantitative evaluation Coarse aggregates angularity and using method and be our current important topic.
Summary of the invention
But the technical problem to be solved in the present invention is to provide a kind of Coarse aggregates angularity analyzer and using method of quantitative evaluation Coarse aggregates angularity.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: a kind of Coarse aggregates angularity analyzer, described support body is provided with a pair of vertical bar, and material collecting barrel is fixed on support body by crossbeam, and the vertical bar on crossbeam and support body is slidably connected, material collecting barrel vertically arranges, be divided into two sections, epimere is isometrical cylinder, and hypomere is tapered cylinder, the diameter of described tapered cylinder reduces to little gradually from upper, and material collecting barrel lower ending opening place is provided with the valve of controlling this opening folding.
The using method of this Coarse aggregates angularity analyzer comprises the following steps:
A, adjust material collecting barrel height to correct position, the valve on the closure set charging basket;
B, coarse aggregate is poured in material collecting barrel, the surface is down flat, must not disturbance after being finished down or strike off coarse aggregate;
C, open valve, start simultaneously stopwatch, stop stopwatch when coarse aggregate has all flowed, read the time that coarse aggregate flows out.
Compared with prior art, the invention has the advantages that: 1, can carry out quantitative evaluation to Coarse aggregates angularity, the impact of the bulk properties that reflection that can be quantitative and evaluation corner angle synthetic coarse gather materials; 2, be useful on the material collecting barrel that holds coarse aggregate on support body, the flowing time that flows out in the material collecting barrel by coarse aggregate is used as judging the reference data of the corner angle of coarse aggregate, and is simple in structure, simplified test procedure, test period is shorter, can draw quickly test findings; 3, the vertical bar on material collecting barrel and support body is slidably connected, and can regulate as required height; 4, support body is provided with and controls the switch valve that the tapered cylinder opening opens and closes, thereby can prevent when batch turning that coarse aggregate spills in the material collecting barrel has influence on test figure.
Further, the concrete size of material collecting barrel is as follows: the internal diameter of described isometrical cylinder is 18cm, is highly 19cm, and the maximum inner diameter of tapered cylinder is 18cm, and minimum diameter is 11cm, is highly 12cm, and the wall thickness of material collecting barrel is 2.5-3mm.
Further, the below of described material collecting barrel is provided with the bucket that connects material, and is convenient to collect the coarse aggregate after test.
Description of drawings
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
Fig. 1 is the structural representation of Coarse aggregates angularity analyzer embodiment of the present invention.
Embodiment
As shown in Figure 1, a kind of Coarse aggregates angularity analyzer of the present invention, described support body is provided with a pair of vertical bar 1, and material collecting barrel is fixed on support body by crossbeam, and the vertical bar 1 on crossbeam and support body is slidably connected, material collecting barrel vertically arranges, be divided into two sections, epimere is isometrical cylinder 2, and hypomere is tapered cylinder 3, the diameter of described tapered cylinder 3 reduces to little gradually from upper, and material collecting barrel lower ending opening place is provided with the valve 5 of controlling the opening folding.The concrete size of material collecting barrel is as follows: the internal diameter of described isometrical cylinder 2 is 18cm, is highly 19cm, and the maximum inner diameter of tapered cylinder 3 is 18cm, and minimum diameter is 11cm, is highly 12cm, and the wall thickness of material collecting barrel is 2.5mm.The below of described material collecting barrel is provided with the bucket 4 that connects material, and is convenient to collect the coarse aggregate after test.
The using method of this Coarse aggregates angularity analyzer comprises the following steps:
A, coarse aggregate is cleaned dried to constant weight, measure the bulk density of every one-level particle diameter
, according to the synthetic bulk density of mix calculation compound;
B, adjust material collecting barrel height to correct position, the valve 5 on the closure set charging basket;
C, coarse aggregate is poured into slowly from isometrical cylinder 2 central openings (height concordant with isometrical cylinder 2), the surface is down flat as far as possible, is not able to any instrument disturbance after being finished down or strikes off coarse aggregate;
D, open valve 5, start simultaneously stopwatch, stop stopwatch when coarse aggregate has all flowed, read the time that coarse aggregate flows out, accurately to 0.1s, be the flowing time of coarse aggregate;
E, need test five times, with the mean value of the flowing time test findings as Coarse aggregates angularity.
Be useful on the material collecting barrel that holds coarse aggregate on support body of the present invention, the flowing time that flows out in the material collecting barrel by coarse aggregate judges the corner angle of coarse aggregate, and is simple in structure, simplified test procedure, and test period is shorter, can draw quickly test findings.Vertical bar 1 on material collecting barrel and support body is slidably connected, and can regulate as required height.Support body is provided with controls the switch valve that tapered cylinder 3 openings open and close, thereby can prevent when batch turning that coarse aggregate spills in the material collecting barrel has influence on test figure.
In the present invention, for convenience, will be the top away from the direction dictates on ground, the direction dictates on close ground is the below.
For a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.
Claims (4)
1. Coarse aggregates angularity analyzer, it is characterized in that: comprise support body and material collecting barrel, described support body is provided with a pair of vertical bar, and material collecting barrel is fixed on support body by crossbeam, and the vertical bar on crossbeam and support body is slidably connected, material collecting barrel vertically arranges, be divided into two sections, epimere is isometrical cylinder, and hypomere is tapered cylinder, the diameter of described tapered cylinder reduces to little gradually from upper, and material collecting barrel lower ending opening place is provided with the valve of controlling this opening folding.
2. Coarse aggregates angularity analyzer as claimed in claim 1, it is characterized in that: the internal diameter of described isometrical cylinder is 18cm, is highly 19cm, the maximum inner diameter of tapered cylinder is 18cm, minimum diameter is 11cm, is highly 12cm, and the wall thickness of material collecting barrel is 2.5-3mm.
3. Coarse aggregates angularity analyzer as claimed in claim 1, it is characterized in that: the below of described material collecting barrel is provided with the bucket that connects material.
4. the using method of Coarse aggregates angularity analyzer as claimed in claim 1 is characterized in that comprising the following steps:
A, adjust material collecting barrel height to correct position, the valve on the closure set charging basket;
B, coarse aggregate is poured in material collecting barrel, the surface is down flat, must not disturbance after being finished down or strike off coarse aggregate;
C, open valve, start simultaneously stopwatch, stop stopwatch when coarse aggregate has all flowed, read the time that coarse aggregate flows out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100250498A CN103091208A (en) | 2013-01-24 | 2013-01-24 | Coarse aggregate angularity tester and application method of same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100250498A CN103091208A (en) | 2013-01-24 | 2013-01-24 | Coarse aggregate angularity tester and application method of same |
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| CN103091208A true CN103091208A (en) | 2013-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290079A (en) * | 2016-08-05 | 2017-01-04 | 山东省交通科学研究院 | The method of testing of a kind of Coarse aggregates angularity and test device |
| CN106442231A (en) * | 2016-08-31 | 2017-02-22 | 北京建筑大学 | Coarse aggregate angularity evaluation method based on digital image analysis technology |
| CN106959259A (en) * | 2017-03-22 | 2017-07-18 | 安徽省骏腾工程试验检测有限公司 | A kind of fine aggregate angularity analyzer |
| CN109085092A (en) * | 2018-08-01 | 2018-12-25 | 中铁上海工程局集团有限公司 | A method of examining flyash quality stability |
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| CN101980014A (en) * | 2010-10-21 | 2011-02-23 | 安徽中铁工程材料科技有限公司 | Method for testing adaptability of polycarboxylic water reducer and cement |
| CN202018414U (en) * | 2010-12-23 | 2011-10-26 | 中国铁道科学研究院铁道建筑研究所 | Working performance comprehensive test device for self-filling concrete for high speed railway slab ballastless tracks |
| CN203069477U (en) * | 2013-01-24 | 2013-07-17 | 招商局重庆交通科研设计院有限公司 | Coarse aggregate angularity tester |
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2013
- 2013-01-24 CN CN2013100250498A patent/CN103091208A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101980014A (en) * | 2010-10-21 | 2011-02-23 | 安徽中铁工程材料科技有限公司 | Method for testing adaptability of polycarboxylic water reducer and cement |
| CN202018414U (en) * | 2010-12-23 | 2011-10-26 | 中国铁道科学研究院铁道建筑研究所 | Working performance comprehensive test device for self-filling concrete for high speed railway slab ballastless tracks |
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| 王火明 等: "粗集料棱角性试验方法研究", 《公路交通技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290079A (en) * | 2016-08-05 | 2017-01-04 | 山东省交通科学研究院 | The method of testing of a kind of Coarse aggregates angularity and test device |
| CN106290079B (en) * | 2016-08-05 | 2023-10-17 | 山东省交通科学研究院 | Coarse aggregate angularity testing method and testing device |
| CN106442231A (en) * | 2016-08-31 | 2017-02-22 | 北京建筑大学 | Coarse aggregate angularity evaluation method based on digital image analysis technology |
| CN106959259A (en) * | 2017-03-22 | 2017-07-18 | 安徽省骏腾工程试验检测有限公司 | A kind of fine aggregate angularity analyzer |
| CN109085092A (en) * | 2018-08-01 | 2018-12-25 | 中铁上海工程局集团有限公司 | A method of examining flyash quality stability |
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Application publication date: 20130508 |