CN215627655U - Special steel-like composite fiber for FZ-SYS shaft - Google Patents
Special steel-like composite fiber for FZ-SYS shaft Download PDFInfo
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- CN215627655U CN215627655U CN202121144773.9U CN202121144773U CN215627655U CN 215627655 U CN215627655 U CN 215627655U CN 202121144773 U CN202121144773 U CN 202121144773U CN 215627655 U CN215627655 U CN 215627655U
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Abstract
The utility model discloses a steel-like composite fiber special for an FZ-SYS shaft, which belongs to the technical field of building construction and comprises a composite fiber body, wherein the composite fiber body comprises a straight line section and special-shaped sections formed at two ends of the straight line section, hemispheres are formed at one ends of the special-shaped sections far away from the straight line section, plug-in bodies II are arranged on the hemispheres at equal intervals, and plug-in bodies I are arranged on the outer side wall of the middle part of the straight line section at equal intervals. The arrangement of the straight line section and the special-shaped section increases the contact area between the composite fiber body and the concrete, enhances the toughness of the concrete, improves the tensile strength of the concrete, can transfer partial stress from the straight line section to the special-shaped section when the stress is generated at the local part of the concrete due to the influence of external force, and can improve the stress offset effect of the special-shaped section through the arrangement of the corrugated or threaded structure of the special-shaped section, thereby preventing the concrete from cracking and greatly improving the impact resistance and the crack resistance of the concrete.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a steel-like composite fiber special for an FZ-SYS shaft.
Background
The steel-like composite fiber is also called coarse synthetic fiber, concrete is accompanied with steel-like fiber, toughening and thickening steel fiber and rigid polymeric fiber, and the product is a substitute product developed aiming at the steel fiber and simultaneously considers some characteristics of the synthetic fiber. Compared with steel fiber, the composite material has the characteristics of corrosion resistance, easy dispersion, easy construction, no damage to mixing equipment and the like. The product is prepared by using synthetic resin as a raw material through special processes and surface treatment and then processing, has the advantages of high breaking strength, good dispersibility in concrete and strong bond strength, is used for replacing steel fibers for cement concrete, overcomes the defects of low tensile strength, small ultimate elongation, brittle property and the like of the concrete, has the performances of tensile strength, shearing resistance, crack resistance, fatigue resistance, high toughness and the like, and is applied to the engineering fields of buildings, roads, bridges, hydraulic engineering and the like.
In the process of manufacturing most of existing FZ-SYS mineshafts, steel-like fibers with certain sizes are added to enhance tensile strength, crack resistance, toughness and other effects of concrete for manufacturing the mineshafts, but the steel-like fibers cannot be in large-area contact with the concrete due to the fact that most of the added steel-like fibers are linear, and accordingly the reinforcing effect of the steel-like fibers on the concrete is affected.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
The utility model aims to provide a special steel-like composite fiber for an FZ-SYS shaft, which aims to solve the problems in the background technology.
2. Technical scheme
In order to solve the problems, the utility model adopts the following technical scheme:
the steel-like composite fiber special for the FZ-SYS shaft comprises a composite fiber body, wherein the composite fiber body comprises a straight line section and special-shaped sections formed at two ends of the straight line section.
Furthermore, one end, far away from the straight line section, of the special-shaped section is provided with a hemisphere in a forming mode, plug-in bodies II are arranged on the hemisphere at equal intervals, and plug-in bodies I are arranged on the outer side wall of the middle portion of the straight line section at equal intervals.
Furthermore, the first plug-in body and the second plug-in body are respectively integrally formed with the straight line section and the hemisphere, and the straight line section, the special-shaped section, the first plug-in body, the hemisphere and the second plug-in body are made of imitation steel fibers.
Preferably, the irregular section has a corrugated structure.
Preferably, the profiled section is of a helical structure.
3. Advantageous effects
1. The arrangement of the straight line section and the special-shaped section increases the contact area between the composite fiber body and the concrete, enhances the toughness of the concrete, improves the tensile strength of the concrete, can transfer partial stress from the straight line section to the special-shaped section when the stress is generated at the local part of the concrete due to the influence of external force, and can improve the stress offset effect of the special-shaped section through the arrangement of the corrugated or threaded structure of the special-shaped section, thereby preventing the concrete from cracking and greatly improving the impact resistance and the crack resistance of the concrete.
2. After the concrete is solidified, the middle part and two ends of the composite fiber body can be respectively fixed in the concrete in an inserting mode through the second inserting body and the first inserting body which are arranged in the concrete and are in adhesive connection with the concrete, so that the tensile effect of the composite fiber body on the concrete is enhanced, and the tensile capacity of the concrete is improved.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention in example 1;
FIG. 2 is a side view of the internal structure of the straight line segment;
FIG. 3 is a schematic view showing the structure of an end portion of the irregularly shaped section in example 1;
fig. 4 is a schematic front view of the structure of the present invention in embodiment 2.
Reference numerals: 1. a straight line segment; 2. a special-shaped section; 3. a first plug-in body; 4. a hemisphere; 5. a second plug-in body; 6. a composite fiber body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, the steel-like composite fiber specially used for the FZ-SYS wellbore comprises a composite fiber body 6, wherein the composite fiber body 6 comprises a straight line section 1 and special-shaped sections 2 formed at two ends of the straight line section 1, and the arrangement of the straight line section 1 and the special-shaped sections 2 increases the contact area between the composite fiber body 6 and concrete, enhances the toughness of the concrete, improves the tensile strength of the concrete, and can transfer part of stress from the straight line section 1 to the special-shaped sections 2 when the concrete generates stress locally, so that the stress on the inner side of the concrete can be partially offset, cracks can be prevented from occurring in the concrete, and the impact resistance effect of the concrete is greatly improved;
as shown in fig. 2 and 3, one end of the special-shaped section 2, which is far away from the straight-line section 1, is provided with hemispheroids 4 in a forming manner, the hemispheroids 4 are provided with plug bodies two 5 at equal intervals, the outer side wall of the middle part of the straight-line section 1 is provided with plug bodies one 3 at equal intervals, after concrete is solidified, the middle part and two ends of the composite fiber body 6 can be respectively fixed in the concrete in a plug-in manner through the plug bodies two 5 and one 3, so that the tensile effect of the composite fiber body 6 on the concrete is enhanced, and the tensile capability of the concrete is improved, namely when the concrete is stressed, two ends of the special-shaped section 2, which may be deformed, are fixed through the plug bodies two 5 and one 3, so as to enhance the tensile effect of the special-shaped section 2 on the concrete around the special-shaped section 2;
the first plug-in body 3 and the second plug-in body 5 are respectively integrally formed with the straight line section 1 and the hemisphere 4, and the straight line section 1, the special-shaped section 2, the first plug-in body 3, the hemisphere 4 and the second plug-in body 5 are all made of imitation steel fibers, and the imitation steel fibers have the advantages of high breaking strength, good dispersibility in concrete and strong holding power, are used for cement concrete instead of steel fibers, overcome the characteristics of low tensile strength, small ultimate elongation, brittle property and the like of the concrete, and have the performances of tensile strength, shearing resistance, crack resistance, fatigue resistance, high toughness and the like;
as shown in fig. 1, the special-shaped section 2 is a corrugated structure, the arrangement of the special-shaped section 2 is a corrugated structure, the effective contact area of the composite fiber body 6 and concrete is increased, the stress on the straight section 1 can be transmitted to the special-shaped section 2, the acting force on the periphery of the straight section 1 can be transmitted to other parts of the concrete through the transmission of the force, the acting effect of the acting force on the straight section 1 is reduced, in addition, the force applied to the concrete can be partially offset through the tendency that the deformation occurs when the special-shaped section 2 is stressed, and the anti-cracking effect of the special-shaped section 2 on the concrete is enhanced.
When the composite fiber body 6 is used, the composite fiber bodies 6 with different lengths are selected according to the actual use condition of concrete, and the thickness of the composite fiber body is 30-50 mm when the anti-cracking reinforced concrete is generally used; when the single-fiber micro-fiber composite material is mixed into sprayed concrete, the mixed quantity is 20mm-30mm, then the composite fiber body 6 with a certain length is mixed into the concrete with the volume mixing quantity of 0.5% -1.5%, namely, the mixing quantity in each cubic meter of concrete is 5kg-15kg, in addition, the concrete only needs to mix various materials according to the conventional grade proportioning parameters in the manufacturing process, and in consideration of the fact that the concrete can cause micro cracks due to shrinkage, drying, temperature change and other factors, 1kg of single-fiber micro-fiber can be added into the concrete for matching use, the effect is better, then a double-shaft horizontal type forced mixer is used for mixing the concrete and the composite fiber body 6, and the feeding and mixing processes are as follows: firstly, adding broken stone, then adding crack-resistant ribs, then adding sand, stirring to fully disperse the crack-resistant ribs, then adding cement and water, and uniformly stirring according to a conventional process; the construction can also be carried out according to the conventional process input sequence, but the mixing and stirring time is properly prolonged so as to ensure that the crack-resistant ribs are uniformly dispersed, the compaction time can be properly prolonged in the forming process of the concrete, and the plastering is carried out after the surface of the concrete is slightly passivated so as to avoid carrying out; the technical indexes of the steel-like composite fiber body are shown in the following chart:
| current diameter (mm) | 0.8 |
| Breaking strength (Mpa) | ≧450 |
| Elongation at Break (%) | 15-40 |
| Density of | 0.91-0.98 |
| Nominal length (mm) | 20-60 |
| Initial modulus (Gpa) | ≧3.5 |
| Acid and alkali resistance (ultimate tensile force retention) (%) | ≧98.0 |
| Principal material | Modified polypropylene resin |
Example 2
Example 2 differs from example 1 in that: as shown in fig. 4, the special-shaped section 2 is of a spiral structure;
the rest is the same as in example 1.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (1)
1. The steel-like composite fiber special for the FZ-SYS shaft comprises a straight line section (1), a special-shaped section (2), a first plug-in body (3), a hemispheroid (4), a second plug-in body (5) and a composite fiber body (6), and is characterized in that the composite fiber body (6) comprises the straight line section (1) and a corrugated structure or a spiral structure formed at two ends of the straight line section (1);
one end of the corrugated structure or the spiral structure, which is far away from the straight line section (1), is provided with hemispheroids (4) in a forming mode, the hemispheroids (4) are provided with plug-in bodies II (5) at equal intervals, and the outer side wall of the middle part of the straight line section (1) is provided with plug-in bodies I (3) at equal intervals; the plug-in body I (3) and the plug-in body II (5) are respectively integrally formed with the straight line section (1) and the hemispheroid (4), and the straight line section (1), the corrugated structure or the spiral structure, the plug-in body I (3), the hemispheroid (4) and the plug-in body II (5) are all made of imitation steel fibers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121144773.9U CN215627655U (en) | 2021-05-26 | 2021-05-26 | Special steel-like composite fiber for FZ-SYS shaft |
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| CN202121144773.9U CN215627655U (en) | 2021-05-26 | 2021-05-26 | Special steel-like composite fiber for FZ-SYS shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116947430A (en) * | 2023-08-07 | 2023-10-27 | 河北拓创远威科技有限公司 | Steel fiber imitated ultra-high performance concrete and preparation method thereof |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116947430A (en) * | 2023-08-07 | 2023-10-27 | 河北拓创远威科技有限公司 | Steel fiber imitated ultra-high performance concrete and preparation method thereof |
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