CN109975165A - A kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method - Google Patents
A kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method Download PDFInfo
- Publication number
- CN109975165A CN109975165A CN201910283725.9A CN201910283725A CN109975165A CN 109975165 A CN109975165 A CN 109975165A CN 201910283725 A CN201910283725 A CN 201910283725A CN 109975165 A CN109975165 A CN 109975165A
- Authority
- CN
- China
- Prior art keywords
- filter paper
- inner box
- box
- fixed frame
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to concrete NDT field, especially a kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method.Device includes container and box cover, and container includes outer box and inner box, and inner box bottom surface is in Openworks shape；Box cover covers on container, and inner box suspension is placed in outer box, has gap between inner box bottom surface and outer box, filter paper is covered on inner box bottom surface, places concrete sample on filter paper.Method is as follows: weighing the weight W of filter paper1；Filter paper is placed on steel wire, using the fixed filter paper of fixed frame, test specimen is placed on steel wire across filter paper, is put into household freezer, carries out Frozen-thawed cycled；After Frozen-thawed cycled is completed, test specimen, filtering is rinsed, then rinse inner box inner side edge and fixed frame, filtering, take out fixed frame, take out filter paper；Filter paper is dried, W is weighed after drying2, then this time the level of residue of circulation is W=W2‑W1.Test specimen is placed in the container by the application, and being encased inside filter paper can be tested, and saves the time of pre-stage test preparation, and step is simpler.
Description
Technical field
The invention belongs to concrete NDT technical field, especially a kind of concrete sample is freeze proof or salt freeze experimental rig and
Residue collection method.
Background technique
Concrete is one of the present age most important civil engineering material, and freeze thawing or deicer-frost damage are to cause concrete durable
Property insufficient one of the major reasons, therefore anti-(salt) jelly property is the important indicator of concrete durability, and it is mixed to affect cold district
The service life of Xtah Crude Clay structure and component resists the detection of (salt) jelly property particularly important such test specimen.
ASTM C1262/C1262M-16 is to dry concrete retaining wall block and agent on crack resistance of concrete freeze thawing durability
Test method standard, GB-T50082-2009 require normal concrete single side freeze-thaw method.
In ASTM C1262/C1262M-16, have some requirements for container: 1. have sufficiently large size, under accommodating
One test specimen and sample support stick and there are also the testing liquids of 3~40mm in test agent surrounding；2. having lid to subtract
Few evaporation；3. support stick is for the sample above container bottom supporting；4. support rod is with a thickness of (5 ± 1) mm, use is solid,
(brass, plastics etc.) are made in material that is corrosion-resistant, not absorbing water.After meeting container requirement, it is put into test specimen, pours into solution, is made
Solution deep reaches (15 ± 2) mm, and wherein support stick is with a thickness of (5 ± 1) mm.So test specimen immerse solution depth be (10 ±
1)mm.Frozen-thawed cycled is carried out later, rinses sample after circulation terminates, the discrete particles on sample is carefully rinsed, then by sample
Testing liquid in container is poured out by filter paper, collects sample residue.
In GB-T50082-2009, test chamber box should be met the following requirements: it is stainless that top has the test specimen box of lid that should use
Steel is made, and the length in container should be (250 ± 1) mm, highly should be (200 ± 1) mm, highly should be (120 ± 1) mm.Container
Bottom should dispose a height of (5 ± 0.1) mm do not absorb water, soak, indeformable and must not influence the non-of solution component during the test
Metal triangular filler strip or support.Carry out Frozen-thawed cycled later, after with filter paper filter the solution containing spall.Residue is received
Collect on filter paper.
Both the above testing program can be normally carried out and can measure mass loss rate freezes to judge the salt resistance of this kind of sample
Performance, but have some problems, first, test early-stage preparations container and have the support stick of thickness and shape need it is relatively time consuming between；
The second, support stick is placed on container bottom by two standard regulations, and when carrying is easy to roll, so that sample arranging is discontented
Sufficient standard requirements；Solution requires depth to reach (15 ± 2) mm in third, Unite States Standard ASTM C1262/C1262M-16, but holds
There is no scale reference, testing crews need to also measure by measuring tool to solution water level for device inner wall, increases test step
Suddenly.4th, testing liquid is poured out by filter paper in Unite States Standard ASTM C1262/C1262M-16, spends the time of drainage too
It is long, spend the time longer, and during pouring out, solution is accidentally easily spilt dew by testing crew.
Summary of the invention
Technical problem solved by the invention is to provide a kind of freeze proof concrete sample or salt jelly experimental rig and residue
Collection method.
The technical solution for realizing the aim of the invention is as follows:
A kind of concrete sample is freeze proof or salt freezes experimental rig, and the experimental rig is box-like, including container and box cover,
The container includes outer box and inner box, and the inner box bottom surface is in Openworks shape；Wherein, the box cover covers on container, described
Inner box suspension is placed in outer box, has gap between inner box bottom surface and outer box, filter paper is covered on the inner box bottom surface, is placed on filter paper
Concrete sample.
The inner sidewall lower part of the inner box is provided with graduation mark.
It further include fixed frame, the fixed frame is frame-type, and size and shape is adapted with inner box, and fixed frame is placed on inner box
Interior bottom, for filter paper to be fixed on inner box bottom surface.
The inner box bottom surface is steel wire, and gap of the steel wire between outer box bottom surface is 5 ± 1mm.
The bottom surface of the outer box and inner box is square, and the side length of outer box is 120-160mm, and the height of outer box is 110-
130mm；The section of the inner box is square, and the side length of size and outer box matches.
The inner box top edge is equipped with hook handle, and hook handle hangs over top outside outer box, outer for hanging on inner box
In box.
The filter paper is greater than the size of inner box bottom surface, has the part 3-4mm more than periphery, is laid with upwards along inner box surrounding.
It is a kind of to carry out the residue collection method that freeze proof or salt freezes test using above-mentioned device, include the following steps:
(1) weight for weighing filter paper, is denoted as W1；
(2) filter paper is placed on steel wire, using the fixed filter paper of fixed frame, test specimen is placed on steel wire across filter paper,
It is put into household freezer, carries out Frozen-thawed cycled；
(3) after Frozen-thawed cycled is completed, test specimen, filtering are rinsed, then rinse inner box inner side edge and fixed frame, filtering, taken out
Fixed frame takes out filter paper；
(4) filter paper is dried, is weighed after drying, be denoted as W2, then this time the level of residue of circulation is
W=W2-W1
In formula: W is the level of residue of this time circulation, W2It is the quality of the filter paper and residue after drying, W1It is the matter of initial filter paper
Amount.
Test specimen, filtering are rinsed in the step (3) specifically: test specimen is picked up, with the wash bottle that testing liquid is housed, is rinsed
The test face that test specimen is contacted with solution, the liquid after rinsing flow into inner box, after cleaning, lift inner box, will be in inner box
Solution filter out.
The drying specifically: take out filter paper and its residue above, put the aeration cabinet that temperature is 110 ± 5 DEG C into
In dried.
Compared with prior art, the present invention its remarkable advantage is as follows:
(1) without separately looking for satisfactory container and support stick, test specimen, which is fetched, to be placed in the container, is encased inside filter paper i.e.
It can be tested, save the time of pre-stage test preparation, step is simpler.
(2) there is certain space on bottom edge in inner box steel wire and outer box, solution in this section in space through steel wire with
The contact of test specimen bottom, and it is not susceptible to relative rolling, reduce error during the test.Handle (5) is linked up with simultaneously to be convenient for
Testing crew is taken out inner box.
(3) present apparatus only needs good graduation mark when the side-walls of inner box have marked graduation mark, pour into testing liquid, reaches
Stop after the scale of standard requirements, easy test procedure.
(4) present invention is discharged by padding filter paper, the solution of filtering on steel wire by steel wire, and residue stays in filter paper
On.Reduce the testing crew filtering of falling solution as far as possible so as to cause the influence of the factors on test results such as dew is spilt.
Detailed description of the invention
Fig. 1 the application experimental rig appearance diagram.
The sectional view of Fig. 2 the application experimental rig container.
Fig. 3 the application container outer box schematic diagram.
Fig. 4 the application container inner box schematic diagram.
Fig. 5 the application container inner box top view.
Fig. 6 the application container inner box sectional view.
Description of symbols:
1- outer box, 2- inner box, 3- steel wire, 4- frame-type fixed frame, 5- link up with handle, 6- box cover, and 7- portrays graduation mark, 8-
Filter paper, 9- test test specimen.
Specific embodiment
Container used is made of outer box 1, inner box 2 and a box cover 6, is made of rigid material, outer box inner edge is a length of
120~160mm is highly 120mm, it is ensured that inner box that test specimen can be put into box simultaneously covers box cover, and there are also 3~40mm around sample
Testing liquid.
Inner box is made of steel wire 3, fixed frame 4, hook handle 5 and surrounding box body, and side length is omited in outer side ratio outer box
It is small, it is ensured that inner box can put container outer box into, and link up with handle 5 and hang over top outside outer box.
Inner box 2 is suspended in outer box 1, and the steel wire in inner box 2 has 5mm away from 1 bottom of outer box, can slightly be become according to standard requirements
Dynamic gap determines the height of inner box in this way.A graduation mark 7 is depicted, on 2 side wall of inner box to control solution liquid
Face.A frame-type fixed frame 4 is made, 2 surrounding of ring inner box, size is more smaller than 2 four side of inner box, guarantees that it can put the steel of inner box 2 into
On silk screen.Frame-type fixed frame 4 is put on steel wire 3 in this way, then inner box 2 is put into outer box 1, covers box cover, residue is collected
Container be ready to complete.
After the container shown in the present invention is ready to, prepare a big filter paper, the size requirements of filter paper are as follows: filter paper exists
After being paved with inner box steel wire, surrounding also there are the part 3-4mm is upward along four side of inner box, fix by upward of length no more than frame-type
The thickness of frame.Filter paper is weighed before being put into, and is denoted as W1.Frame-type fixed frame is put on inner box steel wire after being put into, is pressed
Filter paper, floated in testing liquid to prevent filter paper.Test specimen is placed on middle on steel wire across filter paper, is subsequently poured into test
Solution stops toppling at scale 10mm when liquid level reaches.Whether liquid level of solution reaches scale under observation before being put into household freezer
It is required that if not meeting, addition solution to above-mentioned regulation liquid level.Then carry out Frozen-thawed cycled.(beauty when being recycled to standard regulation
National standard ASTM C1262/C1262M-16 provides that sample is every by 20 circulations or every process in salting liquid in drinking water
10 times circulation carries out residue collection, and GB-T50082-2009 weighs the spall of test specimen after providing every 4 Frozen-thawed cycleds,
According to depending on various criterion) carry out residue collection: test specimen is picked up to (should not 180 degree overturn), with equipped with test from container
The wash bottle of solution rinses the test face of test specimen and face that solution contacts, loose particle can be gently removed with finger tip.Cleaning knot
Shu Hou lifts inner box, and inner box two sides have handle to lift for testing crew, and the solution in inner box is filtered out.Later will it filter
Residue on inner box side and frame-type fixed frame is flushed on filter paper, is refiltered, and takes out fixed frame later, when taking out fixed frame its
On should not there are residues.It is careful to take out filter paper and its residue above, it puts into the aeration cabinet that temperature is (110 ± 5) DEG C
It is dried, is weighed after drying, be denoted as W2.The level of residue of this time circulation is calculated as follows:
W=W2-W1
In formula: W is the level of residue of this time circulation
W2It is the quality of the filter paper and residue after drying
W1It is the quality of initial filter paper
It is collected by the residue that container and method as above carry out per stage.
Embodiment
By one big filter paper pads on the steel wire 3 of the upper container bottom, frame-type fixed frame 4 is pressed on filter paper 8, it will
Ashlar brick test specimen top surface is placed on 3 middle of steel wire across filter paper 8 downward, and testing liquid, moment observation are poured into container
Container side wall graduation mark 7, arrival require interface to stop toppling over.Covered container box is put into household freezer and carries out Frozen-thawed cycled.Ten times
Residue collection is carried out after circulation, is collected by residue collection method of the invention, test data such as the following table 1:
1. test specimen of table is freeze proof/and salt resistance freezes level of residue
Claims (10)
1. a kind of concrete sample is freeze proof or salt freezes experimental rig, which is characterized in that the experimental rig is box-like, including container
Box and box cover (6), the container include outer box (1) and inner box (2), and inner box (2) bottom surface is in Openworks shape；
Wherein, the box cover (6) is covered on container, and the inner box (2) suspension is placed in outer box (1), inner box (2) bottom surface and outer
There is gap between box (1), be covered with filter paper (8) on inner box (2) bottom surface, places concrete sample (9) on filter paper (8).
2. the apparatus according to claim 1, which is characterized in that the inner sidewall lower part of the inner box (2) is provided with graduation mark.
3. the apparatus according to claim 1, which is characterized in that it further include fixed frame (4), the fixed frame (4) is frame-type,
Size and shape is adapted with inner box (2), and fixed frame (4) is placed on the bottom in inner box (2), for filter paper (8) to be fixed on
On inner box (2) bottom surface.
4. the apparatus according to claim 1, which is characterized in that inner box (2) bottom surface is steel wire (3), the steel wire
Gap of the net (3) between outer box bottom surface is 5 ± 1mm.
5. device according to claim 3, which is characterized in that the bottom surface of the outer box (1) and inner box (2) is square,
The side length of outer box (1) is 120-160mm, and the height of outer box (1) is 110-130mm；The section of the inner box (2) is square,
Size and the side length of outer box (1) match.
6. the apparatus according to claim 1, which is characterized in that inner box (2) top edge is equipped with hook handle (5), hangs
Hook handle (5) hangs over top outside outer box (1), for hanging on inner box (2) in outer box (1).
7. the apparatus according to claim 1, which is characterized in that the filter paper (8) is greater than the size of inner box (2) bottom surface, week
The part Bian Yuyou 3-4mm is laid with upwards along inner box (2) surrounding.
8. a kind of carry out the residue collection method that freeze proof or salt freezes test using the described in any item devices of claim 1-7,
It is characterized in that, includes the following steps:
(1) weight for weighing filter paper (8), is denoted as W1；
(2) filter paper (8) is placed on steel wire (3), it is fixed filter paper (8) using fixed frame (4), test specimen is put across filter paper (8)
On steel wire (3), it is put into household freezer, carries out Frozen-thawed cycled；
(3) after Frozen-thawed cycled is completed, test specimen, filtering are rinsed, then rinses inner box (2) inner side edge and fixed frame (4), filtering, is taken
Fixed frame (4) out are taken out filter paper (8)；
(4) filter paper (8) is dried, is weighed after drying, is denoted as W2, then this time the level of residue of circulation is
W=W2-W1
In formula: W is the level of residue of this time circulation, W2It is the quality of the filter paper and residue after drying, W1It is the quality of initial filter paper.
9. according to the method described in claim 8, it is characterized in that, rinsing test specimen, filtering in the step (3) specifically: will
Test specimen (9) is picked up, and with the wash bottle that testing liquid is housed, rinses the test face that test specimen is contacted with solution, the liquid flow after rinsing
Enter in inner box (2), after cleaning, lifts inner box (2), the solution in inner box (2) is filtered out.
10. according to the method described in claim 8, it is characterized in that, the drying specifically: take out filter paper (8) and its above
Residue, putting temperature into is to be dried in 110 ± 5 DEG C of aeration cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283725.9A CN109975165A (en) | 2019-04-10 | 2019-04-10 | A kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283725.9A CN109975165A (en) | 2019-04-10 | 2019-04-10 | A kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109975165A true CN109975165A (en) | 2019-07-05 |
Family
ID=67083904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910283725.9A Pending CN109975165A (en) | 2019-04-10 | 2019-04-10 | A kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109975165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166587A (en) * | 2021-07-12 | 2022-03-11 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Ballastless track cast-in-place concrete frost resistance forming device and testing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2005132553A (en) * | 2005-10-21 | 2007-05-10 | ГОУ ВПО "Чувашский государственный педагогическийуниверситет им. И.Я. Яковлева" (RU) | METHOD FOR DETERMINING THE SPEED OF PHASE TRANSITIONS IN MOBILE STRUCTURES WITH A BALANCING RING |
| CN201063034Y (en) * | 2007-07-06 | 2008-05-21 | 王京 | Apparatus for concrete antifreezing test |
| CN202638104U (en) * | 2012-05-10 | 2013-01-02 | 中国石油天然气股份有限公司 | Filtering centrifugal experiment tube |
| CN203551486U (en) * | 2013-11-05 | 2014-04-16 | 上海理工大学 | Sample barrel for rapid concrete freezing and thawing testing machine |
| CN205263006U (en) * | 2016-01-03 | 2016-05-25 | 河南省郑州水利学校 | Concrete is test piece box for freeze -thaw test |
| CN205263005U (en) * | 2015-12-30 | 2016-05-25 | 长安大学 | Quick freeze thawing test piece bucket of concrete |
-
2019
- 2019-04-10 CN CN201910283725.9A patent/CN109975165A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2005132553A (en) * | 2005-10-21 | 2007-05-10 | ГОУ ВПО "Чувашский государственный педагогическийуниверситет им. И.Я. Яковлева" (RU) | METHOD FOR DETERMINING THE SPEED OF PHASE TRANSITIONS IN MOBILE STRUCTURES WITH A BALANCING RING |
| CN201063034Y (en) * | 2007-07-06 | 2008-05-21 | 王京 | Apparatus for concrete antifreezing test |
| CN202638104U (en) * | 2012-05-10 | 2013-01-02 | 中国石油天然气股份有限公司 | Filtering centrifugal experiment tube |
| CN203551486U (en) * | 2013-11-05 | 2014-04-16 | 上海理工大学 | Sample barrel for rapid concrete freezing and thawing testing machine |
| CN205263005U (en) * | 2015-12-30 | 2016-05-25 | 长安大学 | Quick freeze thawing test piece bucket of concrete |
| CN205263006U (en) * | 2016-01-03 | 2016-05-25 | 河南省郑州水利学校 | Concrete is test piece box for freeze -thaw test |
Non-Patent Citations (2)
| Title |
|---|
| CÉSAR MEDINA 等: "Freeze-thaw durability of recycled concrete containing ceramic aggregate", 《JOURNAL OF CLEANER PRODUCTION》 * |
| 中华人民共和国住房和城乡*** 等: "《中华人民共和国国家标准 GB/T 50082-2009 普通混凝土长期性能和耐久性能试验方法标准》", 30 November 2009, 中国标准出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166587A (en) * | 2021-07-12 | 2022-03-11 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Ballastless track cast-in-place concrete frost resistance forming device and testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101393152B (en) | Insulator dirty degree sampling and measurement method and special funnel device | |
| CN103543083B (en) | A kind of proving installation of cohesive soil aggregate Static Water stability and evaluation method thereof | |
| CN104931385A (en) | Method for measuring density and water absorption of regenerated coarse aggregate | |
| CN108776210A (en) | A kind of ground that drying and watering cycle is coupled with temperature disintegration experimental provision and its experimental method | |
| CN205049377U (en) | Survey oily special sampling device | |
| CN104833609B (en) | The density of recycled coarse aggregate and the measurement method of water absorption rate | |
| CN109975165A (en) | A kind of concrete sample is freeze proof or salt freezes experimental rig and residue collection method | |
| CN108287121A (en) | Measure the device and method of the water characteristic curve of soil dehumidification and moisture absorption process | |
| FI72813C (en) | ANORDINATION OF FARING FARMS IN THE FIELD OF HOSPITAL FIBER. | |
| CN208537541U (en) | A kind of ground that drying and watering cycle is coupled with temperature disintegration experimental provision | |
| CN213091675U (en) | Concrete slump detection device for building | |
| CN105403480A (en) | Determination method for center density of continuous casting slab | |
| CN205920027U (en) | Pavement material laboratory uses overflow basin | |
| CN206208865U (en) | A kind of modified form low-expansion foam drainage time analyzer | |
| CN201413316Y (en) | Metal corrosiveness tester for dangerous goods | |
| CN205749519U (en) | A kind of test(ing) medium catching device | |
| CN105372384B (en) | Bleaching of dish washing machine performance test methods | |
| CN205015245U (en) | Survey device of dampproofing ability in surface of filming | |
| CN209356353U (en) | A kind of detection device quantitative determining pulp density in mangano-manganic oxide production process | |
| RU2008142698A (en) | METHOD AND DEVICE FOR TESTING OF BULK SORBENTS | |
| CN207280836U (en) | Film development box for immunohistochemical experiment | |
| CN218393732U (en) | Water bath corrosion test solvent hanging bottle | |
| CN117054287A (en) | Method and device for rapidly determining true relative density of coke | |
| CN217016693U (en) | Constant-temperature water bath kettle for developing cleaning agent | |
| CN206002412U (en) | For the densitometric counterweight of liquid electronic and liquid electronic densimeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190705 |