CN2526387Y - Indentation type steel fibre - Google Patents
Indentation type steel fibre Download PDFInfo
- Publication number
- CN2526387Y CN2526387Y CN 02232884 CN02232884U CN2526387Y CN 2526387 Y CN2526387 Y CN 2526387Y CN 02232884 CN02232884 CN 02232884 CN 02232884 U CN02232884 U CN 02232884U CN 2526387 Y CN2526387 Y CN 2526387Y
- Authority
- CN
- China
- Prior art keywords
- steel fibre
- indenture
- impression
- steel
- strength
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 239000000835 fiber Substances 0.000 title claims abstract description 57
- 238000007373 indentation Methods 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000013461 design Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Inorganic Fibers (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model relates to an indentation type steel fibre, which is strip shape. The characteristics of the utility model are that: the steel fiber is provided with an indention which has a plurality of heaves(1) and a plurality of dents(2); wherein the heaves(1) and the dents(2) are positioned in alternated period. The one side of the iron fiber has less than 5 dents(3) and are positioned between the lower of the heaves(1). Examinations show that: by using the steel fiber concrete of the utility model, pressive strength and incipient crack bending resistant strength are increased by more than 20 percent, ultimate bending strength, tensile splitting strength and shear strength are all increased by more than 50 percent.
Description
The utility model relates to a kind of steel fibre, more particularly, the utility model relate to a kind of have given shape, can be uniformly distributed in randomly in the concrete to increase the impression shape steel fibre of concrete strength.In International Patent Classification (IPC), should be divided into the E04C group.
At present, along with the development of Foundation Design construction with to the going deep into of concrete research, steel fibrous concrete is widely used.Because the advantage of steel fibrous concrete is significant, so steel fibre manufacturer is many, but shortcoming is arranged also: steel fibre and the concrete bonding effect is undesirable, anchored force is poor, the steel fibre kind is aging, single, and performance is difficult to satisfy the requirement that engineering construction improves day by day.
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of performance more superior special steel fiber, more particularly provides the more good impression shape steel fibre of a kind of performance.
The purpose of this utility model is achieved through the following technical solutions: described steel fibre is a fine strip shape, main feature is: be provided with impression on steel fibre, described impression has projection (1) and indenture (2), and described projection (1) and indenture (2) alternate cycle distribute.
In specific embodiment, be provided with indenture (3) at the opposite side of steel fibre.
Quantity≤5 of described indenture (3).
Described indenture (3) is positioned at the downside of projection (1).
The nominal length of described steel fibre is respectively 20mm, 25mm, 30mm, 35mm, 40mm.
The diameter of described steel fibre or equivalent diameter d
fBe 0.3～0.6mm.
The draw ratio l of described steel fibre
f/ d
fBe 50～80.
Described steel fibre comprises carbon structure steel fibre, alloy structure steel fibre and stainless steel fibre.
Below in conjunction with drawings and Examples the utility model is further specified, wherein:
Accompanying drawing 1 is the elevation of first embodiment of the present utility model of amplification.
Accompanying drawing 2 is elevations of second embodiment of the present utility model of amplification.
Below in conjunction with accompanying drawing the utility model is described in detail, shown at accompanying drawing 1 is the elevation of first embodiment of amplifying, therefrom can see major technique feature of the present utility model.Described steel fibre is a fine strip shape, is pressed with the impression of definite shape on the steel fibre of fine strip shape.From accompanying drawing 1, can see (2) two impressions of projection (1) and indenture.
From figure, also can see, just connect an indenture (2) afterwards in each projection (1); Just connect a projection (1) afterwards at each indenture (2), and then connect indenture (2).So alternate cycle distributes.Take the purpose of design projection like this (1) and indenture (2) to be, on the basis that guarantees steel fibre and concrete good bonding, increase steel fibre and concrete anchored force, be beneficial to improve the performance of steel fibrous concrete.Outstanding characteristics of described impression shape steel fibre are that numerous anchor points are arranged, and are period profile, have therefore improved the performance of steel fibrous concrete.
In addition, in accompanying drawing 1, can also see:, be provided with indenture (3) at the opposite side of steel fibre as additional technical feature.The purpose that indenture (3) is set is further auxiliary increase steel fibre and concrete anchored force, is beneficial to further improve the performance of steel fibrous concrete.
Can also see that from accompanying drawing 1 indenture (3) is arranged on the positive downside of projection (1), steel fibre size maximum herein can realize under the condition of steel fibre self suitable strength guaranteeing, like this to realize better every performance of steel fibrous concrete.In other words, take this structure design, can guarantee under the performance indications of same steel fibrous concrete, the volume volume of steel fibre is minimum, just saves material most, and cost is minimum in other words; Also we can say, under the same condition of the volume volume of steel fibre, can realize the optimum value of the performance of steel fibrous concrete.
It may be noted that described indenture (3) is suitable more shallow, quantity is unsuitable too many, and quantity≤5 of general indenture (3) its objective is the intensity that will guarantee steel fibre self.But special circumstances will make an exception, and the quantity of indenture when steel fibre is longer (3) can be slightly some more.
Accompanying drawing 2 shown second embodiment have then omitted indenture (3), the figure shows out major technique feature of the present utility model, have omitted additional technical feature, and its basic principle such as preceding repeats no more herein.
The nominal length that is noted that steel fibre is respectively 20mm, 25mm, 30mm, 35mm, 40mm, the diameter of described steel fibre or equivalent diameter d
fBe 0.3～0.6mm, the draw ratio l of described steel fibre
f/ d
fBe 50～80.Above-mentioned parameter is the general status of criterion.But,, can produce the product of other specifications and models fully according to designing requirement.
Point out that in passing the raw material of steel fibre should meet the requirement of national respective steel product, this is the basis.Raw material of the present utility model can be steel bands, also can be steel wires.For different raw material, its requirement is different, if use steel band, its tensile strength 〉=550MPa; If the use steel wire, its tensile strength is greater than 1000MPa.
Experiment showed, and use steel fibrous concrete of the present utility model, its compressive strength, incipient crack flexural strength have improved more than 20% respectively, and ultimate bending strength, splitting tensile strength and shear strength have all improved more than 50%.
Claims (8)
1. impression shape steel fibre, described steel fibre is a fine strip shape, it is characterized in that: be provided with impression on steel fibre, described impression has projection (1) and indenture (2), and described projection (1) and indenture (2) alternate cycle distribute.
2. impression shape steel fibre according to claim 1 is characterized in that: the opposite side at steel fibre is provided with indenture (3).
3. impression shape steel fibre according to claim 2 is characterized in that: quantity≤5 of described indenture (3).
4. according to claim 2,3 described impression shape steel fibres, it is characterized in that: described indenture (3) is positioned at the downside of projection (1).
5. impression shape steel fibre according to claim 1, it is characterized in that: the nominal length of described steel fibre is respectively 20mm, 25mm, 30mm, 35mm, 40mm.
6. impression shape steel fibre according to claim 1 is characterized in that: the diameter of described steel fibre or equivalent diameter d
fBe 0.3～0.6mm.
7. impression shape steel fibre according to claim 1 is characterized in that: the draw ratio l of described steel fibre
f/ d
fBe 50～80.
8. impression shape steel fibre according to claim 1, it is characterized in that: described steel fibre comprises carbon structure steel fibre, alloy structure steel fibre and stainless steel fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232884 CN2526387Y (en) | 2002-05-23 | 2002-05-23 | Indentation type steel fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232884 CN2526387Y (en) | 2002-05-23 | 2002-05-23 | Indentation type steel fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526387Y true CN2526387Y (en) | 2002-12-18 |
Family
ID=33708160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02232884 Expired - Lifetime CN2526387Y (en) | 2002-05-23 | 2002-05-23 | Indentation type steel fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526387Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375822C (en) * | 2006-04-06 | 2008-03-19 | 王艺霖 | Novel multipurpose screw steel fiber |
| CN102667026A (en) * | 2009-10-08 | 2012-09-12 | 森特和森特有限责任两合公司 | Metal fiber having a chamfer in the fiber edge extending in the longitudinal direction of the fiber |
-
2002
- 2002-05-23 CN CN 02232884 patent/CN2526387Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375822C (en) * | 2006-04-06 | 2008-03-19 | 王艺霖 | Novel multipurpose screw steel fiber |
| CN102667026A (en) * | 2009-10-08 | 2012-09-12 | 森特和森特有限责任两合公司 | Metal fiber having a chamfer in the fiber edge extending in the longitudinal direction of the fiber |
| CN102667026B (en) * | 2009-10-08 | 2015-12-02 | 森特和森特有限责任两合公司 | With the metallic fiber of the chamfered edge of the fiber seamed edge extended on fiber is longitudinal |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120523 Granted publication date: 20021218 |