CN212640310U

CN212640310U - Annular reducing polypropylene crude fiber

Info

Publication number: CN212640310U
Application number: CN202021450647.1U
Authority: CN
Inventors: 杨程; 王勇忠
Original assignee: Shanghai Shenxiang Concrete Fiber Co ltd
Current assignee: Shanghai Shenxiang Concrete Fiber Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-02
Anticipated expiration: 2030-07-21

Abstract

The application relates to an annular reducing polypropylene coarse fiber, which comprises a fiber body, the fiber body comprises a first fiber and a second fiber, the first fiber and the second fiber are symmetrically arranged and are random, the first fiber and the second fiber comprise a fiber column, and the fiber column is provided with a plurality of fibers. This application helps promoting the area of contact between fibre body surface and concrete to promote the effect of the cohesiveness between fibre body and concrete.

Description

Annular reducing polypropylene crude fiber

Technical Field

The application relates to the technical field of concrete composite materials, in particular to an annular reducing polypropylene coarse fiber.

Background

The concrete fiber is a high-performance fiber specially used for concrete, can effectively control microcracks caused by factors such as plastic shrinkage, dry shrinkage and temperature change of the concrete, prevent and inhibit the formation and development of the original cracks of the concrete, greatly improve the anti-cracking and anti-permeability performance and the anti-abrasion performance of the concrete, and increase the toughness of the concrete, thereby prolonging the service life of the concrete.

Concrete has the defects of high brittleness, low tensile strength, poor toughness and the like, and in the related technology, concrete fibers are usually added into the concrete to improve the tensile strength and the toughness of the concrete.

In view of the above-mentioned related art, the inventors considered that there was a defect that the contact area between the outer surface of the fiber and the concrete was not large enough, and the adhesion between the concrete fiber and the concrete was not strong enough.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the contact area between the outer surface of the fiber and concrete is not large enough, so that the cohesiveness between the concrete fiber and the concrete is not strong enough, the application provides the annular reducing polypropylene coarse fiber.

The annular reducing polypropylene crude fiber adopts the following technical scheme:

the utility model provides an annular reducing polypropylene coarse fibre, includes the fibre body, the fibre body includes first fibre and second fibre, first fibre sets up for the symmetry with the second fibre, arbitrary first fibre all includes the fibre post with the second fibre, the fibre post is provided with a plurality ofly.

Through adopting above-mentioned technical scheme, in the application, the staff puts into the concrete with the first fibre that the symmetry set up and second fibre, then through intensive mixing, the concrete fully contacts with the surface of first fibre and second fibre, helps promoting the cohesiveness between concrete fibre and concrete.

Preferably, any one of the fiber columns is arranged in a frustum shape.

Through adopting above-mentioned technical scheme, through setting up the fibre post into the frustum form, help promoting the area of contact of fibre body and concrete.

Preferably, any of the fiber columns is polypropylene coarse fiber.

Through adopting above-mentioned technical scheme, through setting up the fibre post into polypropylene coarse fibre, help promoting the intensity and the toughness of fibre body.

Preferably, the length of the fiber body combined by a plurality of the fiber columns is 0.5-50 mm.

By adopting the technical scheme, the strength of the fiber body is ensured by virtue of the fiber body with the length of 0.5-50 mm.

Preferably, a through hole is formed in the fiber body, and the axis of the through hole coincides with the axis of the fiber column.

Through adopting above-mentioned technical scheme, set up the through-hole through the axis at the fibre body, help promoting the area of contact of concrete and fibre body.

Preferably, the aerogel particles are uniformly dispersed and fixed on the inner side wall of the through hole, and a recess is formed between any two adjacent aerogel particles.

Through adopting above-mentioned technical scheme, through setting up aerogel granule and sunken in the inboard surface of through-hole, help the cohesiveness between reinforcing fiber body and the concrete.

Preferably, the side wall of the fiber body is provided with a plurality of flow guide holes, the axis of any flow guide hole is intersected and perpendicular to the axis of the fiber body, and any flow guide hole is communicated with the through hole and the outer side of the fiber body.

Through adopting above-mentioned technical scheme, carry out the water conservancy diversion effect by the water conservancy diversion pore pair concrete, help concrete and through-hole fully to contact.

Preferably, a branch is fixed on the inner side wall of the through hole.

Through adopting above-mentioned technical scheme, fully contact by branch and concrete, help promoting the fastness of concrete and the contact of fibre body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fiber body is formed by combining the first fibers and the second fibers which are arranged in a mirror image mode, and the first fibers and the second fibers are formed by fiber columns, so that the contact area between the outer surface of the fiber body and concrete is favorably increased, and the cohesiveness between the fiber body and the concrete is improved;

2. the length of the fiber body formed by combining a plurality of fiber columns is set to be 0.5-50mm, and the frustum-shaped fiber columns are arranged, so that the strength of the fiber body is increased under the condition of saving materials;

3. through aerogel granule and sunken to and the setting of branch, help promoting the fastness of concrete and the contact of fibre body.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a coarse fiber of ring-shaped variable diameter polypropylene according to an embodiment;

FIG. 2 is a schematic view of the overall structure of the coarse annular diameter-variable polypropylene fiber according to the second embodiment;

FIG. 3 is a sectional view of a main embodiment of the second embodiment.

Reference numerals: 1. a fiber body; 11. a first fiber; 12. a second fiber; 13. a fiber column; 2. a through hole; 21. aerogel particles; 22. recessing; 3. a flow guide hole; 4. and (4) branching.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses an annular reducing polypropylene crude fiber.

Example 1

Referring to fig. 1, an annular diameter-variable polypropylene coarse fiber includes a fiber body 1, the fiber body 1 includes a first fiber 11 and a second fiber 12, and the first fiber 11 and the second fiber 12 are symmetrically disposed.

In the application, the staff puts into the concrete with the fibre body 1 that first fibre 11 and the combination of second fibre 12 that the symmetry set up formed, then carries out intensive mixing with the concrete with fibre body 1, and the concrete fully contacts with fibre body 1 surface.

The first fibers 11 and the second fibers 12 have the same structure, and the first fibers 11 and the second fibers 12 are symmetrically disposed along the length direction thereof, which will be described by taking the first fibers 11 as an example.

Referring to fig. 1, the first fibers 11 include eight fiber columns 13, each fiber column 13 is in a frustum shape, the frustum-shaped fiber columns 13 are sequentially connected and fixed at the head position, each fiber column 13 is a polypropylene coarse fiber, and the length of the fiber body 1 formed by combining the first fibers 11 and the second fibers 12 is 0.5-50 mm.

The implementation principle of the embodiment 1 is as follows: in the operation, the staff fully stirs the fiber body 1 and the concrete that are combined by the fiber column 13 that is frustum-shaped, and then the concrete fully contacts with the lateral wall of the fiber column 13 that is frustum-shaped.

Example 2

Referring to fig. 2 and 3, an annular diameter-variable polypropylene coarse fiber comprises a fiber body 1, wherein a through hole 2 is formed in the fiber body 1, the axis of the through hole 2 coincides with the axis of the fiber body 1, and the through hole 2 penetrates through the fiber body 1. Six aerogel particles 21 are uniformly formed on any very cross section perpendicular to the axis of the through hole 2 at intervals, a recess 22 is formed between any two adjacent aerogel particles 21, and the aerogel particles 21 and the recess 22 are uniformly arranged at intervals along the length direction of the fiber body 1. The lateral wall of the fiber body 1 is provided with diversion holes 3, six diversion holes 3 are uniformly arranged on the very cross section vertical to the axis of the through hole 2 at intervals, any diversion hole 3 is communicated with the outside of the through hole 2 and the fiber body 1, and the axis of any diversion hole 3 is intersected and vertical to the axis of the fiber body 1. Be fixed with branch 4 on the inside wall of through-hole 2, branch 4 sets up to the straight line along fibre body 1 length direction.

The implementation principle of the embodiment 2 is as follows: in the application, the staff stirs in putting into the concrete with fibre body 1, and in liquid concrete flowed into fibre body 1 through-hole 2 and water conservancy diversion hole 3, concrete and aerogel granule 21, sunken 22 and 4 full contacts of branch, the staff waits for the concrete solidification after the stirring is accomplished.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An annular diameter-variable polypropylene crude fiber is characterized in that: including fibre body (1), fibre body (1) includes first fibre (11) and second fibre (12), first fibre (11) and second fibre (12) are the symmetry setting, arbitrary first fibre (11) and second fibre (12) all include fibre post (13), fibre post (13) are provided with a plurality ofly.

2. The coarse annular diameter-variable polypropylene fiber as claimed in claim 1, wherein: any fiber column (13) is arranged in a frustum shape.

3. The coarse annular diameter-variable polypropylene fiber as claimed in claim 2, wherein: any one of the fiber columns (13) is polypropylene coarse fiber.

4. The coarse annular diameter-variable polypropylene fiber as claimed in claim 1, wherein: the length of the fiber body (1) formed by combining the fiber columns (13) is 0.5-50 mm.

5. The coarse annular diameter-variable polypropylene fiber as claimed in claim 1, wherein: a through hole (2) is formed in the fiber body (1), and the axis of the through hole (2) coincides with the axis of the fiber column (13).

6. The coarse annular diameter-variable polypropylene fiber as claimed in claim 5, wherein: evenly dispersed is fixed with aerogel granule (21) on the inside wall of through-hole (2), is formed with between two arbitrary adjacent aerogel granules (21) sunken (22).

7. The coarse annular diameter-variable polypropylene fiber as claimed in claim 5, wherein: the fiber body is characterized in that a plurality of flow guide holes (3) are formed in the side wall of the fiber body (1), the axis of any one of the flow guide holes (3) is intersected with and perpendicular to the axis of the fiber body (1), and any one of the flow guide holes (3) is communicated with the outer side of the through hole (2) and the fiber body (1).

8. The coarse annular diameter-variable polypropylene fiber as claimed in claim 5, wherein: and a branch (4) is fixed on the inner side wall of the through hole (2).