CN107290246A - A kind of servicing unit and method for being used to determine concrete mix apparent density - Google Patents
A kind of servicing unit and method for being used to determine concrete mix apparent density Download PDFInfo
- Publication number
- CN107290246A CN107290246A CN201710564949.8A CN201710564949A CN107290246A CN 107290246 A CN107290246 A CN 107290246A CN 201710564949 A CN201710564949 A CN 201710564949A CN 107290246 A CN107290246 A CN 107290246A
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- China
- Prior art keywords
- apparent density
- concrete mix
- bucket
- servicing unit
- annular
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- 239000000203 mixture Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N2009/022—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids
- G01N2009/024—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids the volume being determined directly, e.g. by size of container
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The present invention provides a kind of servicing unit for being used to determine concrete mix apparent density, the vertical pressure strip of center annular that diameter including internal diameter and apparent density bucket matches, the vertical baffle plate of peripheral annular, the outward-dipping inclination Circular Plate being angularly connected between the vertical pressure strip of the center annular and the vertical baffle plate of peripheral annular, the bottom for tilting Circular Plate is symmetrically hinged the support bar being provided with for clamping apparent density bucket periphery wall by resilient mounting, telescopic annular rubber ring is additionally provided between the contact surface of the vertical pressure strip of described center annular and apparent density bucket.Present invention also offers a kind of method for determining concrete mix apparent density.The present invention has simple structure, the characteristics of easy to operate, and eliminates the complex steps for striking off that the waste brought during any excess concrete mixture and cleaning apparent density bucket bucket wall are brought, it is ensured that the accuracy of final result of the test.
Description
Technical field
It is specifically a kind of apparent close for determining concrete mix the invention belongs to concrete properties test experiments field
The servicing unit and method of degree.
Background technology
Concrete mix apparent density is tested as one of normal concrete basic performance determination experiment, by extensive
Using.Have at present applied to the 5L containers for determining concrete mix apparent density, according to《Normal concrete mix physical performance is tried
Test method standard》(GB 50080-2016), is added after concrete mix and vibration compacting, it is necessary to scrape off table in a reservoir
The unnecessary concrete mix in face.But during striking off, unnecessary concrete mix can depend on and remain in container
Outer surface.If being not added with cleaning, can have an impact to final weighed quality, and then apparent density result can be largely effected on
Accuracy.But, the concrete mix of cleaning container outer surface adds the loss of manpower and materials so that apparent density is tested
Process become more complicated.Therefore, it is badly in need of one kind now to hold when determining apparent density and strike off concrete mix
Servicing unit and its application method.
The content of the invention
Present invention is used to determine concrete mix table in view of the above-mentioned problems existing in the prior art there is provided one kind
See the servicing unit and method of density.
The servicing unit of the present invention is achieved through the following technical solutions：
A kind of servicing unit for being used to determine concrete mix apparent density, includes the diameter of internal diameter and apparent density bucket
The vertical pressure strip of center annular that matches, the vertical baffle plate of peripheral annular, outward-dipping angularly it is connected to the center
Annular vertical inclination Circular Plate between pressure strip and the vertical baffle plate of peripheral annular, the bottom of the inclination Circular Plate passes through resilience
Device is symmetrically hinged the support bar being provided with for clamping apparent density bucket periphery wall, the vertical pressure strip of described center annular
Telescopic annular rubber ring is additionally provided between the contact surface of apparent density bucket.
Further, described support bar is door shape, and the bottom of the inclination Circular Plate is hinged on by two resilient mountings
Portion.
Further, described support bar is T-shaped, and the bottom of the inclination Circular Plate is hinged on by a resilient mounting
Portion.
Further, described support bar is I-shaped, and the inclination Circular Plate is hinged on by two resilient mountings
Bottom.
Further, described support bar and apparent density bucket periphery wall contact site are curved.
Further, the radian of the radian of the contact site and apparent density bucket periphery wall matches.
Further, the inclination Circular Plate and angle folded by the vertical pressure strip of center annular are 45 °~75 °.
Further, the vertical pressure strip of described center annular, the vertical baffle plate of peripheral annular, inclination Circular Plate, support bar
Material be metal.
The application method of the present invention is achieved through the following technical solutions：
A kind of method for determining concrete mix apparent density, based on servicing unit as described, including step：
1) the quality m of apparent density bucket is weighed1；
2) by the rubber ring sleeve that can be stretched at apparent density bucket outer barrel wall mouth；
3) two support bars of servicing unit are pulled open, moves down servicing unit, make the vertical pressure strip of its center annular
Upper surface it is concordant with apparent density barrel edge mouthful upper surface；
4) support bar is unclamped, it is clamped apparent density bucket outer wall in the presence of spring Hui Li, prevents the servicing unit
Drop；
5) (plug and pound concrete mix disposable (machine vibrates) or manually) fill apparent density bucket in two times, make slightly
Have more than needed, consolidated using method manually or mechanically；
6) the unnecessary concrete mix of apparent density barrel edge mouthful is scraped in servicing unit after consolidating or vibrate, makes to mix
Solidifying soil mixture surfacing, then pulls open support bar, slowly lifts servicing unit, it is separated with apparent density bucket；
7) remove rubber ring and weigh the quality m of apparent density bucket and concrete mix2, concrete mix it is apparent
Density is calculated as follows：
ρ=1000 (m2-m1)/V
In formula：
Apparent density (the kg/m of ρ -- concrete mix3),
V-- apparent densities bucket volume (L),
m2-- apparent density bucket and concrete mixing amount of substance (kg),
m1-- apparent density bucket quality (kg).
Further, the step 4) in,
When using it is artificial plug and pound method and consolidated when, concrete mix point is loaded into apparent density barrel, every layer of use two layers
Tamper is equably plugged and pounded at least 25 times from edge to center, and every layer has plugged and pounded the wooden rubber hammer of use afterwards and tapped 5~10 along container outer wall
Under, if the second layer plug and pound during concrete mix is heavy drops below bung, concrete mix should be added at any time；
When being consolidated using mechanical vibration method, concrete mix is once filled to apparent density bucket together with the auxiliary
Device is shaken at least 10s on a vibration table, and as concrete mix is sunk to less than bung in vibration processes, coagulation should be added at any time
Native mixture.
The present invention has simple structure, the characteristics of easy to operate, and eliminates and strike off any excess concrete mixture when institute
The complex steps that the waste and cleaning apparent density bucket bucket wall brought is brought, it is ensured that the accuracy of final result of the test.
Brief description of the drawings
Fig. 1 is the top view of the servicing unit of the embodiment of the present invention one.
Fig. 2 is the upward view of the servicing unit of the embodiment of the present invention one.
Fig. 3 is the supporting bar structure schematic diagram of the embodiment of the present invention two.
Fig. 4 is the supporting bar structure schematic diagram of the embodiment of the present invention three.
Fig. 5 is placed in schematic diagram when on apparent density bucket for the servicing unit of the embodiment of the present invention one.
In figure：1st, the vertical pressure strip of center annular, 2, tilt Circular Plate, 3, the vertical baffle plate of peripheral annular, 4, resilient mounting,
5th, support bar, 6, rubber ring.
Embodiment
The goal of the invention of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, embodiment is not
It can repeat one by one herein, but therefore embodiments of the present invention are not defined in following examples.
Embodiment one
As shown in Figure 1 to Figure 2, it is a kind of to be used to determining the servicing unit of concrete mix apparent density, including internal diameter with
Apparent density bucket diameter match the vertical pressure strip 1 of center annular, the vertical baffle plate 3 of peripheral annular, outward-dipping certain angle
It is connected to the inclination Circular Plate 2 between the vertical pressure strip 1 of the center annular and the vertical baffle plate 3 of peripheral annular degree, it is described to incline
The bottom of oblique Circular Plate 2 is symmetrically hinged the support bar being provided with for clamping apparent density bucket periphery wall by resilient mounting 4
5, it is additionally provided with telescopic annular rubber ring between the vertical pressure strip 1 of described center annular and the contact surface of apparent density bucket
6。
Described support bar 5 is door shape, and the bottom of the inclination Circular Plate 2, two go back tos are hinged on by two resilient mountings 4
The centre distance for playing device 4 is 130mm.Described support bar 5 and apparent density bucket periphery wall contact site are curved, meanwhile, institute
The radian for stating the radian and apparent density bucket periphery wall of contact site matches, and to increase contact area, improves the steadiness clamped.
When without using when, about support bar 5 can be compressed by resilient mounting 4 and shown in Fig. 1 and Fig. 2
The state of closure, resilient mounting 4 generally comprises hinges and torsionspring.
In the present embodiment, the size after the vertical pressure strip 1 of center annular deploys is (wide for 596mm (length) × 20mm
Degree) × 2mm (thickness).
The circular diameter (internal diameter) that the vertical pressure strip 1 of center annular is surrounded is 189mm.
The size tilted after the expansion of Circular Plate 2 is 973mm (the outer length of side) × 596mm (the interior length of side) × 60mm (width)
× 2mm (thickness).
The inclination Circular Plate 2 is 75 ° with the acute angle folded by the vertical pressure strip 1 of center annular.
Size after the vertical baffle plate 3 of peripheral annular deploys is (thick for 973mm (length) × 40mm (width) × 2mm
Degree).
A diameter of 5mm of the support bar 5, total length is 380mm, the wherein contact of support bar 5 when in use with bucket wall
Part is in arc line shaped.The material of the servicing unit is metal.
The rubber ring 6 can stretch without destroying within the specific limits, and its size is depending on the retractility of rubber.
Embodiment two
As described in Figure 3, the present embodiment and the difference of embodiment 1 are：Described support bar 5 is T-shaped, passes through a resilience
Device 4 is hinged on the bottom of the inclination Circular Plate 2, simple in construction, easy for installation.
Embodiment three
As described in Figure 4, the present embodiment and the difference of embodiment 1 are：Described support bar 5 is I-shaped, passes through two
Resilient mounting 4 is hinged on the bottom of the inclination Circular Plate 2.
Example IV
A kind of method for determining concrete mix apparent density, based on the servicing unit as described in embodiment one, bag
Include step：
1) the quality m of apparent density bucket is weighed1；
2) rubber ring 6 that can be stretched is enclosed at apparent density bucket outer barrel wall mouthful；
3) two support bars 5 of servicing unit are pulled open, moves down servicing unit, make the vertical pressure strip of its center annular
1 upper surface is concordant with apparent density barrel edge mouthful upper surface；
4) support bar 5 is unclamped, it is clamped apparent density bucket outer wall in the presence of spring Hui Li, prevents the servicing unit
Drop；
5) (plug and pound concrete mix disposable (machine vibrates) or manually) fill apparent density bucket in two times, make slightly
Have more than needed, consolidated using method manually or mechanically；
6) the unnecessary concrete mix of apparent density barrel edge mouthful is scraped in servicing unit after consolidating or vibrate, makes to mix
Solidifying soil mixture surfacing, the concrete mix being stripped off can glide with Circular Plate 2 is tilted, and vertical by peripheral annular
Baffle plate 3 blocks and then pulled open support bar 5, slowly lifts servicing unit, it is separated with apparent density bucket；
7) remove rubber ring 6 and weigh the quality m of apparent density bucket and concrete mix2, the table of concrete mix
Density is seen to be calculated as follows：
ρ=1000 (m2-m1)/V
In formula：
Apparent density (the kg/m of ρ -- concrete mix3),
V-- apparent densities bucket volume (L),
m2-- apparent density bucket and concrete mixing amount of substance (kg),
m1-- apparent density bucket quality (kg).
Specifically, the step 4) in,
When using it is artificial plug and pound method and consolidated when, concrete mix point is loaded into apparent density barrel, every layer of use two layers
Tamper is equably plugged and pounded at least 25 times from edge to center, and every layer has plugged and pounded the wooden rubber hammer of use afterwards and tapped 5~10 along container outer wall
Under, if the second layer plug and pound during concrete mix is heavy drops below bung, concrete mix should be added at any time；
When being consolidated using mechanical vibration method, concrete mix is once filled to apparent density bucket together with the auxiliary
Device is shaken at least 10s on a vibration table, and as concrete mix is sunk to less than bung in vibration processes, coagulation should be added at any time
Native mixture.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, it can also make on the basis of the above description
Other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
Any modifications, equivalent substitutions and improvements made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (10)
1. a kind of servicing unit for being used to determine concrete mix apparent density, it is characterised in that:Including internal diameter with it is apparent close
The vertical pressure strip of center annular (1), the vertical baffle plate of peripheral annular (3), outward-dipping certain angle that the diameter of degree bucket matches
Ground is connected to the inclination Circular Plate (2) between the vertical pressure strip of the center annular (1) and the vertical baffle plate of peripheral annular (3), institute
State tilt Circular Plate (2) bottom be symmetrically hinged by resilient mounting (4) be provided with for clamp apparent density bucket periphery wall
Support bar (5), the vertical pressure strip of described center annular (1) and apparent density bucket contact surface between be additionally provided with it is scalable
Annular rubber ring (6).
2. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exists
In:Described support bar (5) is door shape, and the bottom of the inclination Circular Plate (2) is hinged on by two resilient mountings (4).
3. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exists
In:Described support bar (5) is T-shaped, and the bottom of the inclination Circular Plate (2) is hinged on by a resilient mounting (4).
4. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exists
In:Described support bar (5) is I-shaped, and the bottom of the inclination Circular Plate (2) is hinged on by two resilient mountings (4).
5. a kind of auxiliary dress for being used to determine concrete mix apparent density according to any one of claim 1 to 4
Put, it is characterised in that:Described support bar (5) and apparent density bucket periphery wall contact site are curved.
6. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 5, its feature exists
In:The radian of the radian of the contact site and apparent density bucket periphery wall matches.
7. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exists
In:The inclination Circular Plate (2) is 45 °~75 ° with angle folded by the vertical pressure strip of center annular.
8. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exists
In:The vertical pressure strip of described center annular (1), the vertical baffle plate of peripheral annular (3), tilt Circular Plate (2), support bar (5)
Material is metal.
9. a kind of method for determining concrete mix apparent density, based on auxiliary as any one of claim 1 to 8
Help device, it is characterised in that including step：
1) the quality m of apparent density bucket is weighed1；
2) rubber ring (6) that can be stretched is enclosed at apparent density bucket outer barrel wall mouthful；
3) two support bars (5) of servicing unit are pulled open, moves down servicing unit, make the vertical pressure strip of its center annular
(1) upper surface is concordant with apparent density barrel edge mouthful upper surface；
4) support bar (5) is unclamped, it is clamped apparent density bucket outer wall in the presence of spring Hui Li, prevents the servicing unit from falling
Fall；
5) it is concrete mix is disposable or fill apparent density bucket in two times, make slightly to have more than needed, using manually or mechanically
Method is consolidated；
6) the unnecessary concrete mix of apparent density barrel edge mouthful is scraped in servicing unit after consolidating or vibrate, makes concrete
Mixture surfacing, then pulls open support bar (5), slowly lifts servicing unit, it is separated with apparent density bucket；
7) remove rubber ring (6) and weigh the quality m of apparent density bucket and concrete mix2, concrete mix it is apparent close
Degree is calculated as follows：
ρ=1000 (m2-m1)/V
In formula：
Apparent density (the kg/m of ρ -- concrete mix3),
V-- apparent densities bucket volume (L),
m2-- apparent density bucket and concrete mixing amount of substance (kg),
m1-- apparent density bucket quality (kg).
10. method according to claim 9, it is characterised in that：The step 4) in,
When using it is artificial plug and pound method and consolidated when, concrete mix point is loaded into apparent density barrel two layers, every layer is used tamper
Equably plugged and pounded from edge to center at least 25 times, every layer has plugged and pounded the wooden rubber hammer of use afterwards and tapped along container outer wall under 5~10, the
Two layers plug and pound during if concrete mix is heavy drops below bung, concrete mix should be added at any time；
When being consolidated using mechanical vibration method, concrete mix is once filled to apparent density bucket together with the servicing unit
Shake at least 10s on a vibration table, as concrete mix is sunk to less than bung in vibration processes, concrete should be added at any time and mixed
Compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564949.8A CN107290246A (en) | 2017-07-11 | 2017-07-11 | A kind of servicing unit and method for being used to determine concrete mix apparent density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564949.8A CN107290246A (en) | 2017-07-11 | 2017-07-11 | A kind of servicing unit and method for being used to determine concrete mix apparent density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290246A true CN107290246A (en) | 2017-10-24 |
Family
ID=60100665
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710564949.8A Pending CN107290246A (en) | 2017-07-11 | 2017-07-11 | A kind of servicing unit and method for being used to determine concrete mix apparent density |
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| Country | Link |
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| CN205280721U (en) * | 2016-01-12 | 2016-06-01 | 北京瑞昌隆混凝土有限责任公司 | Concrete slump bucket |
| 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 |
| CN205597011U (en) * | 2016-04-21 | 2016-09-28 | 青岛农业大学 | Mink hind limb skin and flesh separator |
| CN106841579A (en) * | 2017-04-17 | 2017-06-13 | 福建省睿翼建设有限公司 | The performance test of pervious concrete mixture, characterizing method and detection means |
| CN207036602U (en) * | 2017-07-11 | 2018-02-23 | 华南理工大学 | A kind of servicing unit for being used to determine concrete mix apparent density |
-
2017
- 2017-07-11 CN CN201710564949.8A patent/CN107290246A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067523U (en) * | 1990-04-16 | 1990-12-19 | 欧开培 | Machine for storing and taking straw of beverage |
| CN2090343U (en) * | 1991-07-04 | 1991-12-11 | 王中芳 | Cup holder suitable to use on board |
| TWM392958U (en) * | 2010-06-29 | 2010-11-21 | Univ Vanung | Improved slump cone tool for implementation of fresh concrete |
| CN202330414U (en) * | 2011-11-30 | 2012-07-11 | 成都市市政工程（集团）有限责任公司 | Slump testing device for preventing concrete from overflowing |
| CN104865158A (en) * | 2015-05-29 | 2015-08-26 | 南通理工学院 | Concrete mixture workability apparatus |
| CN205280721U (en) * | 2016-01-12 | 2016-06-01 | 北京瑞昌隆混凝土有限责任公司 | Concrete slump bucket |
| 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 |
| CN205597011U (en) * | 2016-04-21 | 2016-09-28 | 青岛农业大学 | Mink hind limb skin and flesh separator |
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| CN207036602U (en) * | 2017-07-11 | 2018-02-23 | 华南理工大学 | A kind of servicing unit for being used to determine concrete mix apparent density |
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Application publication date: 20171024 |
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