CN201993298U - Filler dry-tamping tester - Google Patents
Filler dry-tamping tester Download PDFInfo
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- CN201993298U CN201993298U CN2011200087191U CN201120008719U CN201993298U CN 201993298 U CN201993298 U CN 201993298U CN 2011200087191 U CN2011200087191 U CN 2011200087191U CN 201120008719 U CN201120008719 U CN 201120008719U CN 201993298 U CN201993298 U CN 201993298U
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- filler
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- dry
- cartridge
- tester
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Abstract
The utility model discloses a filler dry-tamping tester which comprises a base and a filler charging cylinder, wherein two oppositely-arranged vertical upright columns are arranged on the base; the filler charging cylinder is positioned between the two vertical upright columns; two hitting blocks passing through the vertical upright columns and capable of moving on the vertical upright columns are fixed on the two sides of the filler charging cylinder respectively; a dry-tamping column is arranged in the material charging cylinder; and calibrations are marked on the dry-tamping column. When the filler dry-tamping tester disclosed by the utility model is used, particles can be closely contacted with each other, and large and small particles can be mutually embedded, extruded and compacted, so that the best compacting state can be achieved; and besides, the filler dry-tamping tester has the advantages of simple structure and low production cost, and is convenient to use and popularize.
Description
Technical field
The utility model relates to a kind of dry-tamping test instrument, particularly relates to a kind of filler dry-tamping test instrument.
Background technology
Filler is the important component part in the asphalt, and the performance of filler and the quantity in asphalt thereof have very big influence to every performance of asphalt, aspect that needs are considered emphatically when being the Mixture Ratio design.Filler plays the effect aspect two as being fine into most branch in the asphalt in asphalt, and the one, as a part of gathering materials, fill space than coarse aggregate; The 2nd, complicated physics chemical action takes place, combine with pitch and form rubber cement, the mineral aggregate granular cementation is got up, be the component part of cementitious matter, and and then affect the viscoelasticity of compound.The rubber cement theory thinks that also the finely divided system in three grades of disperse systems of compound is the key that influences the every performance of compound.In practice, design of the match ratio of compound and quality control on construction often also are the main means that amount of filler (Ratio of filler bitumen) is adjusted as a pavement performance.
But China's relevant specification is very simple to the quality regulation of filler, " highway engineering gather materials testing regulations " (JTG E42-2005) only limits to " asphalt highway construction technique normalizing " (JTGF40-2004) conventional index such as sreen analysis, hydrophilic coefficient, these conventional indexs that studies show that for many years can't be made effective control to packing quality, can't guarantee the superperformance of asphalt.External longer to the search time of materials such as filler, many test methods and evaluation index have also been proposed, the technical requirement of the standard C EN of the European Economic Community 13043 of in May, 2002 issue " bituminous pavement is with gathering materials standard " filler is except that grating, water cut, density etc., also have some other to think important character, for example " pitch number (Bitumen number) " test of soluble test, water sensitivity test, methylene blue test, filler stem compacting porosity, filler etc.
Wherein, the dry-tamping porosity of filler has important value to the evaluation of packing quality.The test of the dry-tamping of filler is under fixing condition, with filling compaction, and with filler porosity under the compaction state as the test method of test index.Dry-tamping porosity notion is at first proposed by Rigden the earliest, he think when filler by dry-tamping during to maximal density, the volume of air in the filler is minimum.At this moment, in asphalt mastic, filling the required pitch of these holes becomes fixedly pitch, when the pitch quantity of adding is less than fixedly pitch, and will the dry and astringent stiff rubber cement of generation; Surpass fixedly that the part of pitch becomes free pitch, it can reduce the stiffness of rubber cement, and it also can think to lubricate the part of rubber cement.
Measuring the dry-tamping porosity has different methods of operating, and their ultimate principle all is to adopt to hit real principle, has only adopted the different real merits of hitting.But, because the distribution of particles of filler also is the grating form, mutual interlocking is arranged also between the variable grain interface, hit the real closely contact between the particle that just makes, the material that the space quilt is thinner between the particle is filled.Like this, filler can not reach good dense state after hitting in fact, and the filler stem porosity value of being calculated also is inaccurate.So, need better test apparatus of design and test condition, so that improve the compactness of filler and the accuracy of measurement result, thereby estimate the quality of filler exactly.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of filler dry-tamping test instrument is provided.When using this filler dry-tamping test instrument, not only can make closely contact between each particle, can also make the compacted reality of the mutual embedding of size particles, can reach best dense state, and it is simple in structure, easy to use, production cost is low, is convenient to promote the use of.
For achieving the above object, the technical solution adopted in the utility model is: filler dry-tamping test instrument, it is characterized in that: comprise pedestal and cartridge, described pedestal is provided with two vertical columns that are oppositely arranged, described cartridge is between two vertical columns, described cartridge both sides respectively be fixed with one be through on the vertical column and can on vertical column, move hit real piece, be provided with the tamping post in the described cartridge, described tamping post is marked with scale.
Above-mentioned filler dry-tamping test instrument, the upper end of two vertical columns are provided with most significant digit restriction bolt.
The utility model compared with prior art has the following advantages:
1, simple in structure, make small and exquisite, economical with materials.Filler dry-tamping test instrument described in the utility model by pedestal, hit real piece, tamping post and vertically column four major parts constitute, have scale on the piston boit, whole device does not have the processing and the application of exact instrument, makes simply, volume is little, and is in light weight, few with material.
2, easy to operate, simple.This filler dry-tamping test instrument adds filler and also covers the tamping post in use, only needs to promote to hit real piece and put down to specified altitude assignment and get final product.Because instrument is small and exquisite, it is lighter relatively to hit real piece weight, and manual operations just is easy to finish, and does not need loaded down with trivial details mechanical driver unit, and is simple.
3, the double action of applying vibration and compacting adopts the vibrating compacting principle, and filling compaction is more abundant.This filler dry-tamping test instrument is in when operation, hits real piece and falls behind the bump pedestal, and the filler in the cartridge is because action of inertia, can vibrate compacted voluntarily and fills slit between larger particles automatically than fine grained; Simultaneously, stop suddenly in the tamping post dropping process,, the effect of shock compaction can be arranged the filler in the tube also owing to action of inertia.Like this, the double action of filler self in piston and the tube has formed vibration and impact, not only can make closely contact between each particle, also can make the compacted reality of the mutual embedding of size particles, can reach best dense state.
4, measuring accuracy height.Because filler reached best dense state, measured porosity be only approach most actual.Like this, when estimating packing quality and quality thereof, just can make the most rational judgement, thereby provide foundation accurately for the quality control index of recommendation filler the asphalt mastic Effect on Performance.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Description of reference numerals:
The 1-pedestal; 2-tamping post; The vertical column of 3-;
4-most significant digit restriction bolt; The 5-cartridge; 6-hits real piece.
Embodiment
A kind of filler dry-tamping test instrument as shown in Figure 1, comprise pedestal 1 and cartridge 5, described pedestal 1 is provided with two vertical columns 3 that are oppositely arranged, described cartridge 5 is between two vertical columns 3, described cartridge 5 both sides respectively be fixed with one be through on the vertical column 3 and can on vertical column 3, move hit real piece 6, be provided with tamping post 2 in the described cartridge 5, described tamping post 2 is marked with scale.Preferred way is that the upper end of two vertical columns 3 is provided with most significant digit restriction bolt 4.
Described tamping post 2 is marked with scale, and its diameter is more smaller than cartridge 5 internal diameters, can be enclosed within the cartridge 5.When not loading material in the cartridge 5, tamping post 2 zero graduations are just concordant with cartridge 5 top; When in the cartridge 5 filler being housed, the scale of tamping post 2 is the height of an interior filler.According to packed height in the internal diameter of cartridge 5 and the cartridge 5, can calculate the volume of an interior filler, and, further calculate porosity according to the packing quality of weighing.
During use, in the cartridge 5 of sky, put into the filler of certain mass, and on the top cover of filler filter paper, put into tamping post 2.Both hands are mentioned and are hit real piece 6 to most significant digit restriction bolt 4 places, and contact will be tried one's best slightly, then allows it freely fall to pedestal 1, has so just finished a jolt ramming.So repeat 100 times each 1s at interval.
In the utility model, the vibrating compacting principle that filling compaction adopts.After hitting real piece 6 and getting off to clash into pedestal 1, the fillers in the cartridge 5 are because action of inertia, can vibrate compacted voluntarily and fill slit between larger particles automatically than fine grained; Simultaneously, stop suddenly in tamping post 2 dropping process,, the effect of shock compaction can be arranged the filler in the tube also owing to action of inertia.Like this, the double action of filler self and tamping post 2 in the cartridge 5 has formed vibration and impact, not only can make closely contact between each particle, and size particles is rearranged, and the compacted reality of embedding can reach best dense state mutually.
Be described further below in conjunction with the use of instantiation this filler dry-tamping test instrument:
The test procedure of filler dry-tamping porosity is specific as follows:
(1) density p of filler is determined in test
f
(2) choose the test filler that general assembly (TW) is no less than 150g, heat at least in 110 ± 5 ℃ baking oven 90min is cooled to normal temperature then to the filler constant weight in exsiccator.
(3) in the cartridge 5 of sky, put into filter paper and tamping post 2, determine 2 zero points of tamping post.
(4) take out the weight m that tamping post 2 back weighings hit real piece 6 (band filter paper is not with tamping post 2)
0, be accurate to 0.01g.
(5) take out filter paper, place and (10 ± 1g) fillers in cartridge 5, and hit real piece 6 by tip-tap and make it tiling evenly.Filter paper is put into the filler top, carefully puts into piston, note filler is adhered to around the cartridge 5, gently press tamping post 2, the compacting filler carries away tamping post 2 then, and the filler of bottom groove is removed.
(6) will hit real piece 6 and tamping post 2 is placed on the pedestal 1.Lifting is hit real piece 6 to most significant digit restriction bolt 4 places, and contact will be tried one's best slightly, then allows it freely fall to base, repeats 100 times, at interval about 1s.Will keep tamping post 2 in cartridge 5, to be free to slide during this time, thereby it is free to slide will often to rotate maintenance, even extracts tamping post 2 in case of necessity and remove the filler that is mingled with.
(7) behind the end of operation, read the height h of filler after the compacting, be accurate to 0.01mm.
(8) will hit real piece 6 and take off, and remove tamping post 2, and not want the disturbance filler, weighing hits real piece 6 (containing filler and filter paper) quality m
1, be accurate to 0.01g, thereby calculate compacting filler weight m
2=m
1-m
0
(9) calculate dry-tamping porosity Φ
R:
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.
Claims (2)
1. filler dry-tamping test instrument, it is characterized in that: comprise pedestal (1) and cartridge (5), described pedestal (1) is provided with two vertical columns (3) that are oppositely arranged, described cartridge (5) is positioned between two vertical columns (3), described cartridge (5) both sides respectively be fixed with one be through that vertical column (3) is gone up and can vertical column (3) go up move hit real piece (6), be provided with tamping post (2) in the described cartridge (5), described tamping post (2) is marked with scale.
2. filler dry-tamping test instrument according to claim 1 is characterized in that: the upper end of two vertical columns (3) is provided with most significant digit restriction bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200087191U CN201993298U (en) | 2011-01-12 | 2011-01-12 | Filler dry-tamping tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200087191U CN201993298U (en) | 2011-01-12 | 2011-01-12 | Filler dry-tamping tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993298U true CN201993298U (en) | 2011-09-28 |
Family
ID=44669784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200087191U Expired - Fee Related CN201993298U (en) | 2011-01-12 | 2011-01-12 | Filler dry-tamping tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767272A (en) * | 2017-03-17 | 2017-05-31 | 四川省建筑科学研究院 | A kind of positioner and localization method for determining flow of cement mortar |
| CN114577842A (en) * | 2022-05-07 | 2022-06-03 | 江苏双辉环境科技有限公司 | Cooling tower filler performance test bench |
-
2011
- 2011-01-12 CN CN2011200087191U patent/CN201993298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767272A (en) * | 2017-03-17 | 2017-05-31 | 四川省建筑科学研究院 | A kind of positioner and localization method for determining flow of cement mortar |
| CN114577842A (en) * | 2022-05-07 | 2022-06-03 | 江苏双辉环境科技有限公司 | Cooling tower filler performance test bench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120112 |