JPS58201603A - Manufacture of decorative curved-surface cement board - 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 An unexploded IA is one whose surface is curved in a convex or concave shape, such as a wall board for construction, and there is a uniform or almost uniform surface on the curved surface side along the curved surface. This type of method, which has been practiced in the past, involves directly supplying decorative mortar into a mold having the desired curved surface and shape, and then hardening it. After shaping the decorative layer, a lining cement mortar is supplied into the mold, and after curing and hardening, the mold is removed. However, when using this conventional method, the decorative mortar is The thickness of the decorative layer tends to be uneven, such as sagging and the thickness of that area becomes unduly thin. The purpose of the present invention is to overcome the drawbacks of the conventional art in that the decorative effect is seriously impaired. A decorative mortar is supplied to the upper surface of a flexible surface formwork in a horizontal or nearly horizontal state, and (cl) at the semi-hardening point when the cosmetic mortar loses its fluidity, the decorative mortar is applied as described above. Place it on a rigid main body frame having a curved surface together with the front formwork, deform and maintain it in the required curved position, (c) Subsequently supply cement mortar containing lining glass fiber, and (c) After curing and curing, the mold is demolded, especially 7F Niji, which can be expected to have the following functions and effects.

In other words, it is sufficient to supply decorative mortar to a horizontal or nearly horizontal surface formwork, and it is sufficient to maintain this state until the stage of semi-hardening at which the decorative mortar loses its fluidity. Even if the product has S, or if the absolute thickness of the decorative layer is restricted to a thin one due to the required wall thickness of the entire board, there will be no sag or unevenness of the decorative mortar. As a result, a decorative layer with an even or almost uniform thickness can be easily formed over the entire surface, and a curved cement board with a high decorative effect can be obtained. List them in order of process.

(G) As shown in Figure 1, a flexible surface form (2) made of Frethane rubber, Shisocone rubber, etc. is placed in a horizontal or almost horizontal state, and a decorative mortar (CIA) is placed on the top surface thereof.
t-1 Evenly coat the entire surface by spraying, troweling, etc.
Alternatively, it is supplied in a state of approximately uniform and appropriate thickness.

This cosmetic mortar (IA) has σ, j N/,! fine aggregate in weight percent;
0. J −0,f weight percent water.

and 0.07 to 0.0 as necessary. / weight percent of pigment is blended.It also has a fast hardening of 0.01NO. If the cosmetic mortar (CIA) is made to harden quickly as a so-called quick-hardening compound with the addition of a hardening retarder of σJ,
This is advantageous on the L power plane.

(b) When the cosmetic mortar (IA) loses its fluidity and becomes 90% solid, this cosmetic mortar (1 person) is
As shown in the IB diagram, the surface formwork (2) is placed on the main body form (3), which has a curved surface (8 ri) and is made of steel, wood, etc., together with the surface formwork (2). ) and cosmetic mortar (IA)'' are deformed and held in a posture along the curved surface (8).

(c) Subsequently, as shown in FIG. 8, glass fiber reinforced cement mortar (4A) is sprayed onto the back side of the curved decorative mortar (IA).

This lining cement mortar (4A) has a high viscosity and does not cause sagging or unevenness when rising because chalice fiber is mixed in.
Fine aggregate 0. J~/, J weight percent, water 0. J~σ,
After curing and hardening, remove from the mold. As shown in Figure gIK4, a decorative layer of mortar is placed on the curved surface side.
A curved cement board having l t- is obtained.

A specific example of the composition of the decorative mortar (IA) for curved cement boards and the glass fiber reinforced cement mortar lining (4A) produced by the above method is as follows.

Cosmetic mortar ■ ■ Mix all of the above ■ and ■ separately, then add ■ to ■ and knead.

Backing cement mortar In the above example, a curved cement board with a smooth and single-colored decorative surface was described. It is possible to produce curved cement boards with more complex decorative surfaces by using different colors to appear on the surface.

[Brief explanation of the drawing]

FIGS. 1 to 8 are longitudinal views of essential parts in each step of the method of the present invention, and FIG. 4 is a longitudinal cross-sectional view of the product. +11... Decorative layer, (2j... Surface formwork, (3)... Main salary formwork, (IA)...
・Cosmetic mortar, (4 people)...Yiuchi cement mortar. 1st 1111 (= Figure 2 3rd 4th

Claims (1)

[Claims] A method for manufacturing a curved cement board having a decorative layer 11) of an appropriate thickness that is uniform or very uniform along the curved surface on the curved surface side, comprising: (a) flexibility. (b) Supply the decorative mortar (IA) to the upper surface side of the surface formwork (2) in a horizontal or almost horizontal state; The decorative mortar (IA) is deformed and maintained in the required curved posture by placing it together with the surface formwork (2) on the rigid main formwork (3) having a curved ff1j (8 ri), and (c) Continuing. A method for producing a decorative curved cement board, comprising: supplying glass fiber-containing cement mortar (4A) for lining, and removing the mold after curing and curing.