JPS59123613A - Fiber reinforced cement product in which inside of fiber continuous solid wire is impregnated with cement mixture andits manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION There have been fiber-reinforced cement products in which a continuous fiber single wire is attached to a cement mixture, but the continuous fiber single wire is used in a substantially horizontal direction. Therefore, the cement mixture was introduced perpendicularly to the continuous single fiber wire in a substantially horizontal direction, and was then attached to the periphery of the continuous single fiber wire by vibration. It was a fiber-reinforced cement product with excellent strength due to its extremely high fiber orientation efficiency.

However, there is a need to further improve the strength by effectively using continuous single fibers. As a result of repeated research, the present inventor, Kasa, further improved the adhesion of the ambient pressure cement mixture to the surface of the continuous fiber single wire and confirmed that the inside of the continuous fiber single wire was not clogged.

An object of the present invention is to provide a fiber-reinforced cement product whose strength is improved by impregnating the inside of the continuous fiber single wire C with a cement mixture, and a method for manufacturing the same.

That is, in order to achieve this object, the fiber-reinforced cement product of the present invention incorporates a fiber frame body in which M-fiber continuous single wires made of filaments are stretched over a frame body of a desired shape. The inside of the continuous single wire is impregnated with a cement mixture, and the manufacturing method is to insert the continuous single fiber wire into a frame VC of a desired shape.
A stretched fiber frame is formed, and the fiber frame is fixed in a trap and formwork so that the direction in which the continuous fiber single wire is stretched is approximately perpendicular. Next, in this state, a cement mixture is poured into the formwork. From this example, it was decided to impregnate the inside of the continuous fiber single wire with the cement mixture.

Here, the concept of terminology that is the basis of the present invention will be explained.

Cement product means a product made from a cement-based mixture, including paste, mortar concrete,
It shall also include steel fiber concrete, lightweight concrete, concrete, glass fiber mortar, and all other cement mixtures and combinations of these mixtures.

Stretching is the act of keeping the continuous fiber single wire in a stretched state by wrapping the continuous fiber single wire around the frame, gluing it, or using a trap that makes it easy to catch the frame material itself. means. Other methods include tying or welding both ends, but any method will do as long as it is taut.

Continuous fiber single wire refers to the minimum length that is sufficient to stretch the required spacing, the minimum length that is sufficient to be wound once or multiple times, and any other length that can be stretched. say. In addition, the pulling force can be increased by twisting the continuous fiber single wire, inserting knots, or providing bumps. Furthermore, in order to improve work efficiency, several single wires may be strung together at the same time.

East A continuous fiber single wire made of concentrated filaments refers to the so-called roving in which filaments are grouped together to form a strand, and the strands are also grouped together, or it refers to a strand in which the filaments are grouped together.
In short, it is a single continuous fiber wire made of the smallest unit of fibers. Types of fibers include glass fiber, carbon fiber, boron fiber,
Includes all types of chemical fibers that are formed in bundles.

The present invention will be explained below with reference to the drawings.

FIG. 1 is a diagram showing a state in which a cement mixture is being introduced in order to make the present invention easier to understand. In the diagram, 1 indicates a frame body, 2 a fiber frame body, 3 a continuous fiber single wire, 4 cement mixtures, and 6 a formwork.

FIG. 2 shows an enlarged view of the continuous fiber single wire 3. 7 is a filament.

In carrying out the present invention, first, the fiber frame body 2 is fixed to the formwork 6 in a substantially vertical state using spacers.

Next, the cement mixture 4 is thrown in the same direction (arrow a direction) to the continuous fiber single wire 3 stretched in the substantially vertical direction in the fiber frame 2, and vibration is applied.
The cement mixture 4 impregnates the inside of the continuous fiber single wire 3 and creates adhesion between it and the filament or strand, which is a factor in improving the strength. As shown in FIG. 2, the continuous fiber single wire 3 forms an impregnated structure.

FIG. 4 shows a partially cutaway perspective view of a first embodiment of the fiber-reinforced cement product 5 of the present invention.

FIG. 3 shows a perspective view of the fiber frame 2 built into the first embodiment.

All of the continuous fiber single wires 3 stretched in the fiber frame 2 are impregnated with the cement mixture 4, so that the cement mixture enters inside the continuous fiber single wires 3 and creates an adhesive force between the cement particles and the filaments or strands. occurs, which in turn becomes a factor in improving the strength of fiber-reinforced cement products.

Next, the manufacturing method of this first embodiment will be explained with reference to FIG. First, as shown in FIG. 5-A, the fiber frame body 2 is fixed to the form frame 6 in a substantially vertical direction using spacers. At this time, all the continuous fiber single wires 3 in the fiber frame 2 are in a substantially vertical direction.

Next, vibration is applied while adding the cement mixture (5th step).
Figure - Mouth). During this step, the inside of the continuous fiber single wire 3 is impregnated with the cement mixture. When the pouring is completed, the surface is finished with a trowel, and the fiber-reinforced cement product 5 is completed.

FIG. 7 shows a partially cutaway perspective view of a second embodiment of the fiber-reinforced cement product 5 of the present invention.

FIG. 6 shows a perspective view of the fiber frame 2 built into the second embodiment.

FIG. 8 is a diagram showing the manufacturing process of the second embodiment, and arrow a in FIG. 8-b indicates the direction in which the cement mixture is introduced.

As shown in FIG. 7, the fiber-reinforced cement product 5 includes a fiber frame 2 and is in close contact with the cement mixture 4. Since the feeding direction of the cement mixture 4 is as shown in Fig. 8--arrow a, the continuous fiber +% 13 is divided into the continuous fiber 3 which runs approximately vertically and the continuous fiber 3' which runs approximately horizontally.
The continuous fiber single wire 3 has an impregnated structure as shown in FIG.

The strength of the fiber-reinforced cement product 50 has been improved due to the continuous linear and parallel orientation of the fibers, but since the fibers are impregnated inside the continuous single wire 3, this is a factor that further improves the strength.

Next, the manufacturing method of this second embodiment will be explained with reference to FIG. As shown in FIG. 8-A, the fiber frame body 2 is fixed to the formwork 6 using spacers NK, and vibration is applied while the cement mixture 4 is introduced (FIG. 8-B). During this process, the cement mixture is impregnated inside the continuous fiber single wire 3 in the substantially vertical direction.

The function of vibration in the present invention will be explained in more detail. Vibration promotes the fluidization of the cement mixture and compacts it, but since the flow direction of the cement mixture and the direction in which the continuous fiber single wire 3 is stretched are parallel to each other, the cement mixture is physically not allowed to flow inside the continuous fiber single wire 3. It acts as an impregnating energy.

When the pouring is completed, the surface is finished with a trowel, and a fiber-reinforced cement product 5 is completed (FIG. 8-c). As in the first embodiment, an impregnated structure is formed inside the continuous fiber single wire 3, which contributes to improving the strength.

[Brief explanation of drawings]

Figures 1 and 2 are explanatory views of the present invention, respectively, with Figure 1 showing the state of cement mixture being added, and Figure 2 I'
3, 4 and 5 respectively show the first embodiment of the present invention, FIG. 3 is a perspective view of the fiber frame, and FIG. 4 is a fiber-reinforced cement product. A partially cutaway perspective view of FIG. 5 is an explanatory diagram showing the manufacturing process, FIGS. 6 and 7,
Fig. 8 shows a second embodiment of the present invention, Fig. 6 is a perspective view of a fiber frame, Fig. 7 is a partially cutaway perspective view of a fiber-reinforced cement product, and Fig. 8 is an explanatory diagram of the manufacturing process. It is. l... Frame body 2... Fiber frame body 3... Continuous fiber single wire 4... Cement mixture 5... Fiber reinforced cement product 6... Formwork 7... Filament Figure 1 Figure 3 Figure 2 Figure 4? 6 4th

Claims (1)

[Scope of Claims] /) It has a built-in fiber frame in which a continuous fiber single wire made of bundled filaments is stretched over a frame of a desired shape, and the inside of the continuous fiber single wire is impregnated with a cement mixture. A fiber-reinforced cement product featuring: 2) A fiber frame is formed by stretching a continuous fiber single wire onto a frame of a desired shape, and the fiber frame is fixed in the formwork so that the direction in which the continuous fiber single wire is stretched is substantially perpendicular. Next, in this state, a cement mixture is introduced into a formwork and vibration is applied to impregnate the interior of the continuous fiber single wire with the cement mixture. 3) Claim 2, wherein all the continuous single fibers in the fiber frame are arranged in a substantially vertical direction. A method for producing fiber-reinforced cement products. 4t) A method for producing a fiber-reinforced cement product according to claim WJz, wherein some of the continuous fibers in the fiber frame are arranged in a substantially vertical direction.