CN104374670A - Testing system and method for workability of porous concrete - Google Patents
Testing system and method for workability of porous concrete Download PDFInfo
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- CN104374670A CN104374670A CN201410641707.0A CN201410641707A CN104374670A CN 104374670 A CN104374670 A CN 104374670A CN 201410641707 A CN201410641707 A CN 201410641707A CN 104374670 A CN104374670 A CN 104374670A
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- sleeve
- square hole
- cellular concrete
- hole screen
- fastening bracket
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Abstract
The invention discloses a testing system and method for the workability of porous concrete. The testing system comprises a bottom fixing bracket, a sleeve, a square hole sieve and a sealing cover, wherein the sleeve is arranged in the bottom fixing bracket and the bottom of the sleeve is sealed; a top opening of the sleeve is communicated with a bottom opening of the square hole sieve; the sealing cover is in sealed connection with a top opening of the square hole sieve; a pair of handles are arranged on the side face of the sleeve; the bottom fixing bracket comprises two connection rods and two annular brackets; and the two annular brackets are distributed up and down and are connected by the two connection rods. The testing system and method can be used for rapidly obtaining the working performance of the porous concrete.
Description
Technical field
The invention belongs to road engineering material field, relate to a kind of test macro and method of cellular concrete workability.
Background technology
Cellular concrete is also called coarse porous concrete or porous lean cement concrete, is by the lean concrete of cement, coarse aggregate and water mixing, due to without sand or few sand, there is more and larger hole after this compound sclerosis.Porous cement concrete material relies on unique skeleton gap structure, making becomes drainage road or road surface drainage basic unit can significantly improve road drainage efficiency, reduces the possibility of urban waterlogging generation, and security and the comfortableness of running car can be improved, absorb and reduce traffic noise.
The workability of fresh cement concrete is an important content in concrete construction process.In civil engineering construction process, processes such as transporting with convenient construction operation for obtaining closely knit and uniform xoncrete structure, pouring into a mould, vibrate, require that fresh concrete must have good workability, keep fresh concrete that the phenomenons such as layering, segregation, bleeding do not occur, and obtain even, shaping closely knit concrete.
Traditional workability of concrete evaluation method mainly contains slump and Wei Bo denseness method, and slump test is applicable to plastic concrete, and ties up vigorous flow test and be applicable to dry concrete (the little 10mm of slump).For porous cement concrete, water cement ratio is less, and cement consumption is less, and mobility is minimum, and said method is all unwell to the workability measuring cellular concrete.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of test macro and method of cellular concrete workability, this system and method can obtain the serviceability of cellular concrete fast.
For achieving the above object, the test macro of cellular concrete workability of the present invention comprises bottom fastening bracket, sleeve, square hole screen and gland bonnet, sleeve is positioned in bottom fastening bracket, the sealed bottom of sleeve, the open top of sleeve is connected with the bottom opening of square hole screen, the open top of gland bonnet and square hole screen is tightly connected, and the side of sleeve is provided with a pair handle;
Described bottom fastening bracket comprises two connecting links and two annular stents, and two annular stents are distributed up and down and are connected by two connecting links.
The open-topped inner side of described sleeve is provided with internal thread, and the outside of square hole screen bottom opening is provided with the external thread matched with described internal thread.
The height of described bottom fastening bracket is 10cm, and internal diameter is 24cm, and external diameter is 25cm.
The height of described sleeve is 15cm, and external diameter is 21cm, and internal diameter is 20cm.
The diameter of described square hole screen endoporus is 4.75mm or 2.36mm.
The method of testing of cellular concrete workability of the present invention comprises the following steps:
1) with wet cloth, each of square hole screen and sleeve is wiped wet, then square hole screen is installed in sleeve;
2) will the quality measured be needed to be m
1porous cement concrete be placed on square hole screen, and by gland bonnet lid on the upper opening of square hole screen;
3) sleeve is placed in bottom fastening bracket, then both hands grasp handle, the bottom of sleeve is raised to and flushes with the top of bottom fastening bracket, then allow sleeve, square hole screen and gland bonnet freely fall, and repeat 10 times uniformly in 3min;
4) square hole screen is taken off, can circulating water mud amount m in the amount of obtaining sleeve
2.
5) repeat step 1 successively), 2), 3) and 4), after repeating N time, obtain obtain for N time can the mean value m of circulating water mud amount
3, can the mean value m of circulating water mud amount according to what to obtain for N time
3and the quality m of porous cement concrete
1obtain the cement slurry volume flow index CSFI of cellular concrete, wherein,
then the workability of this cellular concrete is obtained according to the cement slurry volume flow index CSFI of cellular concrete, wherein, m
lfor the solid density of cellular concrete, m
sfor can the solid density of circulating water mud.
N is more than or equal to 3.
The present invention has following beneficial effect:
The test macro of cellular concrete workability of the present invention and method are when implementing, only need be placed in square hole screen by needing the concrete of test, repeat 10 times the top that the bottom of sleeve is raised as bottom handgrips to be flushed in 3min, then by sleeve, square hole screen and gland bonnet free-falling, record flowable cement slurry volume in sleeve, then repeat N time, what obtain obtaining for N time can the mean value of circulating water mud amount, then this concrete cement slurry volume flow index CSFI is measured according to the mean value of flowable cement slurry volume and original cellular concrete, then the workability of this cellular concrete is obtained according to the cement slurry volume flow index CSFI of described cellular concrete, compensate for blank and the deficiency of current cellular concrete workability index and measuring method, and it is easy to operate, structure is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 be gland bonnet, 2 be square hole screen, 3 be handle, 4 be sleeve, 5 be connecting link, 6 for bottom fastening bracket.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, the test macro of cellular concrete workability of the present invention comprises bottom fastening bracket 6, sleeve 4, square hole screen 2 and gland bonnet 1, sleeve 4 is positioned in bottom fastening bracket 6, the sealed bottom of sleeve 4, the open top of sleeve 4 is connected with the bottom opening of square hole screen 2, gland bonnet 1 is tightly connected with the open top of square hole screen 2, and the side of sleeve 4 is provided with a pair handle 3; Described bottom fastening bracket 6 comprises two connecting links 5 and two annular stents, and two annular stents are distributed up and down and are connected by two connecting links 5.
It should be noted that, the described open-topped inner side of sleeve 4 is provided with internal thread, and the outside of square hole screen 2 bottom opening is provided with the external thread matched with described internal thread; The height of bottom fastening bracket 6 is 10cm, and internal diameter is 24cm, and external diameter is 25cm; The height of sleeve 4 is 15cm, and external diameter is 21cm, and internal diameter is 20cm; The diameter of square hole screen 2 endoporus is 4.75mm or 2.36mm.
The method of testing of cellular concrete workability of the present invention comprises the following steps:
1) with wet cloth, each of square hole screen 2 and sleeve 4 is wiped wet, then square hole screen 2 is installed in sleeve 4;
2) will the quality measured be needed to be m
1porous cement concrete be placed on square hole screen 2, and gland bonnet 1 is covered on the upper opening of square hole screen 2;
3) sleeve 4 is placed in bottom fastening bracket 6, then both hands grasp handle 3, the bottom of sleeve 4 is raised to and flushes with the top of bottom fastening bracket 6, then allow sleeve 4, square hole screen 2 and gland bonnet 1 freely fall, and repeat 10 times uniformly in 3min;
4) square hole screen 2 is taken off, can circulating water mud amount m in the amount of obtaining sleeve 4
2.
5) repeat step 1 successively), 2), 3) and 4), after repeating N time, obtain obtain for N time can the mean value m of circulating water mud amount
3, can the mean value m of circulating water mud amount according to what to obtain for N time
3and the quality m of porous cement concrete
1obtain the cement slurry volume flow index CSFI of cellular concrete, wherein,
then the workability of this cellular concrete is obtained according to the cement slurry volume flow index CSFI of cellular concrete, wherein, m
lfor the solid density of cellular concrete, m
sfor can the solid density of circulating water mud.
N is more than or equal to 3.
According to cellular concrete Evaluation on Workability table of grading 1, judge the quality of workability.
Table 1
Claims (7)
1. the test macro of a cellular concrete workability, it is characterized in that, comprise bottom fastening bracket (6), sleeve (4), square hole screen (2) and gland bonnet (1), sleeve (4) is positioned in bottom fastening bracket (6), the sealed bottom of sleeve (4), the open top of sleeve (4) is connected with the bottom opening of square hole screen (2), gland bonnet (1) is tightly connected with the open top of square hole screen (2), and the side of sleeve (4) is provided with a pair handle (3);
Described bottom fastening bracket (6) comprises two connecting links (5) and two annular stents, and two annular stents are distributed up and down and are connected by two connecting links (5).
2. the test macro of cellular concrete workability according to claim 1, it is characterized in that, described sleeve (4) open-topped inner side is provided with internal thread, and the outside of square hole screen (2) bottom opening is provided with the external thread matched with described internal thread.
3. the test macro of cellular concrete workability according to claim 1, is characterized in that, the height of described bottom fastening bracket (6) is 10cm, and internal diameter is 24cm, and external diameter is 25cm.
4. the test macro of cellular concrete workability according to claim 1, is characterized in that, the height of described sleeve (4) is 15cm, and external diameter is 21cm, and internal diameter is 20cm.
5. the test macro of cellular concrete workability according to claim 1, is characterized in that, the diameter of described square hole screen (2) endoporus is 4.75mm or 2.36mm.
6. a method of testing for cellular concrete workability, is characterized in that, based on the test macro of cellular concrete workability according to claim 1, comprises the following steps:
1) with wet cloth, each of square hole screen (2) and sleeve (4) is wiped wet, then square hole screen (2) is installed in sleeve (4);
2) will the quality measured be needed to be m
1porous cement concrete be placed on square hole screen (2), and by gland bonnet (1) lid to square hole screen (2) upper opening on;
3) sleeve (4) is placed in bottom fastening bracket (6), then both hands grasp handle (3), the bottom of sleeve (4) is raised to and flushes with the top of bottom fastening bracket (6), then allow sleeve (4), square hole screen (2) and gland bonnet (1) freely fall, and repeat 10 times uniformly in 3min;
4) square hole screen (2) is taken off, can circulating water mud amount m in the amount of obtaining sleeve (4)
2.
5) repeat step 1 successively), 2), 3) and 4), after repeating N time, obtain obtain for N time can the mean value m of circulating water mud amount
3, can the mean value m of circulating water mud amount according to what to obtain for N time
3and the quality m of porous cement concrete
1obtain the cement slurry volume flow index CSFI of cellular concrete, wherein,
then the workability of this cellular concrete is obtained according to the cement slurry volume flow index CSFI of cellular concrete, wherein, m
lfor the solid density of cellular concrete, m
sfor can the solid density of circulating water mud.
7. the method for testing of cellular concrete workability according to claim 6, it is characterized in that, N is more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641707.0A CN104374670B (en) | 2014-11-13 | 2014-11-13 | A kind of test system and method for celluar concrete workability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641707.0A CN104374670B (en) | 2014-11-13 | 2014-11-13 | A kind of test system and method for celluar concrete workability |
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| Publication Number | Publication Date |
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| CN104374670A true CN104374670A (en) | 2015-02-25 |
| CN104374670B CN104374670B (en) | 2016-09-14 |
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| CN201410641707.0A Expired - Fee Related CN104374670B (en) | 2014-11-13 | 2014-11-13 | A kind of test system and method for celluar concrete workability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323967A (en) * | 2018-09-19 | 2019-02-12 | 河海大学 | The test device and its application method of porous cement concrete cement slurry deflection ratio |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0112199Y2 (en) * | 1981-12-15 | 1989-04-10 | ||
| CN102778556A (en) * | 2011-05-09 | 2012-11-14 | 同济大学 | Testing method for working performance of concrete and apparatus implementing same |
| CN103105346A (en) * | 2013-01-16 | 2013-05-15 | 浙江大学 | Method for testing workability rheological parameter range of concrete |
| CN203011798U (en) * | 2012-11-30 | 2013-06-19 | 长沙理工大学 | Comprehensive fresh cement concrete performance tester |
| CN203337656U (en) * | 2013-03-27 | 2013-12-11 | 郭奇 | Novel working performance tester of high-slump concrete |
| CN203941074U (en) * | 2014-04-18 | 2014-11-12 | 广东省基础工程公司 | Concrete disintegration rate verifier |
| CN204214736U (en) * | 2014-11-13 | 2015-03-18 | 长安大学 | A kind of cellular concrete workability test macro |
-
2014
- 2014-11-13 CN CN201410641707.0A patent/CN104374670B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0112199Y2 (en) * | 1981-12-15 | 1989-04-10 | ||
| CN102778556A (en) * | 2011-05-09 | 2012-11-14 | 同济大学 | Testing method for working performance of concrete and apparatus implementing same |
| CN203011798U (en) * | 2012-11-30 | 2013-06-19 | 长沙理工大学 | Comprehensive fresh cement concrete performance tester |
| CN103105346A (en) * | 2013-01-16 | 2013-05-15 | 浙江大学 | Method for testing workability rheological parameter range of concrete |
| CN203337656U (en) * | 2013-03-27 | 2013-12-11 | 郭奇 | Novel working performance tester of high-slump concrete |
| CN203941074U (en) * | 2014-04-18 | 2014-11-12 | 广东省基础工程公司 | Concrete disintegration rate verifier |
| CN204214736U (en) * | 2014-11-13 | 2015-03-18 | 长安大学 | A kind of cellular concrete workability test macro |
Non-Patent Citations (2)
| Title |
|---|
| 张云国 等: "自 密实轻骨料混凝土抗离析性控制与试验方法", 《大连理工大学学报》 * |
| 张云国 等: "自密实轻骨料混凝土的工作性能", 《建筑材料学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323967A (en) * | 2018-09-19 | 2019-02-12 | 河海大学 | The test device and its application method of porous cement concrete cement slurry deflection ratio |
| CN109323967B (en) * | 2018-09-19 | 2021-04-09 | 河海大学 | Testing device for sinking rate of porous cement concrete cement paste and application method thereof |
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| Publication number | Publication date |
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| CN104374670B (en) | 2016-09-14 |
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Granted publication date: 20160914 Termination date: 20191113 |