CN201520723U - Wave micro steel fiber - Google Patents
Wave micro steel fiber Download PDFInfo
- Publication number
- CN201520723U CN201520723U CN 200920236174 CN200920236174U CN201520723U CN 201520723 U CN201520723 U CN 201520723U CN 200920236174 CN200920236174 CN 200920236174 CN 200920236174 U CN200920236174 U CN 200920236174U CN 201520723 U CN201520723 U CN 201520723U
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- steel fiber
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Abstract
The utility model relates to a wave micro steel fiber, the diameter or equivalent diameter of the fiber is 0.15-0.25mm, the nominal length of the fiber is 13-18mm, and the length-diameter ratio of the fiber is 50-90. When mixing the steel fiber into the concrete, the compression strength of the concrete can be improved, the breaking strength is greatly increased, the crack resistance, impact resistance and flexural toughness can be obviously improved, therefore, the wave micro steel fiber is applicable to modern high performance concrete.
Description
Technical field
The utility model relates to the concrete steel fiber, more specifically is meant a kind of fine steel fiber with wave-like.It can be dispersed in the concrete, significantly improves concrete tension, bending tensile strength, promotes cracking resistance, antiknock, wear-resisting, antidetonation, shock resistance and bend ductility significantly.Be applicable to engineering and position that over-all properties is had relatively high expectations.
Background technology
Present domestic steel fiber is pressed the material branch, can be divided into three kinds of structural carbon steels, structural alloy steel, stainless steel.Can be divided into four big classes by production technique: the molten type of taking out of the cold drawn cut-off type of steel wire, steel plate shearing type, steel ingot milling type and molten steel.In the steel fiber that China concrete is used, based on shear model steel fiber, molten to take out type steel fibers be minimum with molten steel.Above-mentioned four types of steel fiber tensile strength are best with the cold drawn cut-off type of steel wire under equal material condition (as carbon steel), and next coming in order are the molten types of taking out of steel plate shearing type, steel ingot milling type and molten steel.
Deformed steel fiber (waviness, end hook type, dumbbell shape, bow type etc.) is developed and uses because of being higher than the flat type steel fiber with concrete bonding force, but mostly is confined to shear model steel fiber and major diameter (〉=0.5mm) cut-off type steel fiber; Fine steel fiber is generally flat type because of difficult forming, and bonding force is not as good as the deformed steel fiber.
Summary of the invention
The purpose of this utility model is to provide a kind of high-tensile waviness fine steel fiber, improves the bonding strength of steel fiber and concrete/mortar matrix, promotes the over-all properties of concrete/mortar.
The diameter of the fine steel fiber of waviness described in the utility model or equivalent diameter are 0.15～0.25mm, and nominal length is 13～18mm, and length-to-diameter ratio is 50～90.
Be strengthening the bond stress with concrete/mortar matrix, tensile strength of the present utility model is preferred 〉=2000MPa.
Crest of the present utility model and trough are more than one, and concrete quantity is decided on its length.
The utility model adopts cold drawn cut-off type steel wire steel fiber, and concrete material can be selected the structural carbon steel of structural carbon steel, structural alloy steel, stainless steel or copper coating for use.
Because tensile strength 〉=2000MPa of the present utility model, and have corrugated crest and trough, increased bond stress with concrete/mortar matrix, so the bonding strength of fiber and matrix further improves, can give full play to the high-tensile advantage of steel fiber self, more help strengthening the resistance to compression of Steel Fiber Reinforced Concrete/mortar, tension, shearing resistance, bending tensile strength, compare with the normal concrete of admixture steel fiber not, its ultimate compression strength improves more than 20%, tensile strength improves more than 50%, bending strength improves 70%～90%, slip resistance improves 80%～100%, promotes cracking resistance, antiknock, wear-resisting, antidetonation, over-all propertieies such as shock resistance (promoting 60～100 times) and toughness.
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model
1,2 crest and the troughs that are respectively wave shown in the figure.
Embodiment
As shown in Figure 1, with diameter is that the steel wire of 0.15～0.25mm cuts into the fiber that length is 13～18mm, make the length-to-diameter ratio of steel fiber in 50～90 scope, adopt a pair of pinch roller that is arranged above and below on steel fiber, to roll out wave-like then, with increasing progressively of the length of steel fiber, the crest 1 of wave and the number of trough 2 also increase progressively.
Claims (4)
1. the fine steel fiber of waviness is characterized in that its diameter or equivalent diameter are 0.15～0.25mm, and nominal length is 13～18mm, and length-to-diameter ratio is 50～90.
2. the fine steel fiber of waviness according to claim 1 is characterized in that its tensile strength 〉=2000MPa.
3. the fine steel fiber of waviness according to claim 1 and 2 is characterized in that crest (1) and the trough (2) on the steel fiber is more than one.
4. the fine steel fiber of waviness according to claim 1 and 2 is characterized in that described steel fiber is cold drawn cut-off type steel wire steel fiber, adopts the structural carbon steel manufacturing of structural carbon steel, structural alloy steel, stainless steel or copper coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920236174 CN201520723U (en) | 2009-10-14 | 2009-10-14 | Wave micro steel fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920236174 CN201520723U (en) | 2009-10-14 | 2009-10-14 | Wave micro steel fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520723U true CN201520723U (en) | 2010-07-07 |
Family
ID=42506902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920236174 Expired - Lifetime CN201520723U (en) | 2009-10-14 | 2009-10-14 | Wave micro steel fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520723U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603221A (en) * | 2012-03-29 | 2012-07-25 | 江苏博特新材料有限公司 | Preparation method of steel fiber with rough surface |
| CN103274652A (en) * | 2013-06-20 | 2013-09-04 | 中建三局建设工程股份有限公司 | Reactive powder concrete for reinforcing buildings as well as preparation method and construction method thereof |
| CN103910510A (en) * | 2012-12-31 | 2014-07-09 | 中交武汉港湾工程设计研究院有限公司 | Scouring-resistant wear-resistant ocean engineering concrete |
| CN105819773A (en) * | 2016-03-09 | 2016-08-03 | 河海大学 | Short stainless steel band concrete and preparation method thereof |
| CN106468104A (en) * | 2016-09-07 | 2017-03-01 | 西安建筑科技大学 | A kind of steel fiber reinforced concrete and its construction method reinforcing precast floor slab |
| CN109896792A (en) * | 2019-03-27 | 2019-06-18 | 中国建筑材料科学研究总院有限公司 | Bionical fiber type and concrete and building comprising it |
| WO2022252465A1 (en) * | 2021-05-31 | 2022-12-08 | 华南理工大学 | Milled steel fiber and application thereof in ultra-high performance concrete and wear-resistant terrace |
| CN117843379A (en) * | 2023-12-29 | 2024-04-09 | 江苏科环新材料有限公司 | Waste power station boiler casting material reinforced by heat-resistant alloy steel cuttings and preparation method thereof |
-
2009
- 2009-10-14 CN CN 200920236174 patent/CN201520723U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603221A (en) * | 2012-03-29 | 2012-07-25 | 江苏博特新材料有限公司 | Preparation method of steel fiber with rough surface |
| CN102603221B (en) * | 2012-03-29 | 2013-11-06 | 江苏博特新材料有限公司 | Preparation method of steel fiber with rough surface |
| CN103910510A (en) * | 2012-12-31 | 2014-07-09 | 中交武汉港湾工程设计研究院有限公司 | Scouring-resistant wear-resistant ocean engineering concrete |
| CN103274652A (en) * | 2013-06-20 | 2013-09-04 | 中建三局建设工程股份有限公司 | Reactive powder concrete for reinforcing buildings as well as preparation method and construction method thereof |
| CN105819773A (en) * | 2016-03-09 | 2016-08-03 | 河海大学 | Short stainless steel band concrete and preparation method thereof |
| CN106468104A (en) * | 2016-09-07 | 2017-03-01 | 西安建筑科技大学 | A kind of steel fiber reinforced concrete and its construction method reinforcing precast floor slab |
| CN109896792A (en) * | 2019-03-27 | 2019-06-18 | 中国建筑材料科学研究总院有限公司 | Bionical fiber type and concrete and building comprising it |
| WO2022252465A1 (en) * | 2021-05-31 | 2022-12-08 | 华南理工大学 | Milled steel fiber and application thereof in ultra-high performance concrete and wear-resistant terrace |
| CN117843379A (en) * | 2023-12-29 | 2024-04-09 | 江苏科环新材料有限公司 | Waste power station boiler casting material reinforced by heat-resistant alloy steel cuttings and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU SUBOTE NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: BOTE NEW MATERIAL CO., LTD., JIANGSU Effective date: 20140509 Free format text: FORMER OWNER: JAINGSU ACADEMY OF BUILDING RESEARCH CO., LTD. Effective date: 20140509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140509 Address after: 211103, No. 59 West Wan An Road, Jiangning District, Jiangsu, Nanjing Patentee after: Jiangsu Subute New Materials Co., Ltd. Address before: 211103, No. 59 West Wan An Road, Jiangning District, Jiangsu, Nanjing Patentee before: Jiangsu Bote New Materials Co., Ltd. Patentee before: Jiangsu Provincial Architectural Science Institute Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |