JPS5924003A - Colored paving flat plate - 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 The present invention is for use as a colored flooring material in parks, plazas, sidewalks, shopping streets, stores, etc., which is flexible, thin and easy to install. It concerns flat plates.

Recently, colored pavement has become widely used as part of urban environment maintenance and beautification.
A common method was to apply a desired amount of paint to the top surface of the storage area, but this method had the disadvantage that the coating layer lacked durability.

Therefore, in order to overcome this drawback, a resin is used instead of asphalt 1 as a binder, and a pigment is added to it to color it, and a colored heating mixture such as colored fine-grained asphalt (concrete) or colored asphalt 1 mortar is prepared by heating and mixing. Paving is done by leveling the ground and performing compaction work. In this case, if the compaction work is not carried out when the mixture temperature is 130 to 140°C or higher, pockmarks will appear on the colored pavement surface and the aesthetic appearance will be affected.Especially in winter construction, the colored heated mixture after leveling will It is difficult to pave colored pavement because the temperature drops quickly. Therefore, in order to reduce the temperature drop of the heated colored mixture and improve the compaction finish, the thickness of colored pavement should be increased to 15-20111 or more. There was a real need to do so.

As a result, if colored pavement is applied to the surface of a normally paved area that has not been colored, the thickness of the colored pavement is too thick, making it difficult to maintain contact with surrounding structures. In many cases, it was necessary to remove the dirt and install colored pavement. In addition, the materials used for this pavement, such as resins and pigments, are expensive, and the thicker the colored pavement, the more expensive it becomes.Furthermore, regarding the color tone, since the coloring is done by adding and mixing pigments, it is necessary to use a single color. In addition, colored pavement with a high content of colored mortar on the surface had many defects such as dirt and other substances adhering to the resin of the surface mortar as the years passed, resulting in a decrease in clarity. .

Other methods include the colored cement 1-mortar method and the method of pouring open-grain asphalt concrete Men 1 mortar, but cracks due to expansion and contraction of the cement 1- are unavoidable, and a curing period is required until it hardens. There were drawbacks such as. Other methods have drawbacks such as requiring a curing period for the paving mortar base and joint material to harden, and the cost increases because colored porcelain tiles are expensive. In addition, a TJ with a thickness of at least 30 mm that does not crack, such as flyer tiles, fired bricks, and colored concrete block boards, is required. Because it is extremely thick, it is often impossible to raise it on top of existing pavement due to competition, and it is difficult to lay on curved surfaces, requiring a craftsman to install it, just as with porcelain tiles.

As mentioned above, there are many problems with conventional colored pavement.
It had drawbacks.

Therefore, the inventor of the present invention sought to eliminate these drawbacks of colored pavement.
As a result of various studies on colored pavement plates, we have found that when making colored pavement plates, it is a good idea to make them from a mixture that is much softer than the heated colored mixture used for passing seats. Focusing on the fact that it is possible to prevent the deformation and flow of colored pavement by reducing the thickness of the flat plate as much as possible, it is especially important to use heated colored mixtures with a Marshall stability of 350 kg or less and a flow value of 40 or more. By incorporating colored artificial crushed stone and/or natural colored crushed stone into the heated colored mixture, we know that it has the desired softness and flexibility, so that it is not exposed to the surface and dust etc. It was also found that (=J) does not occur, so the sharpness does not decrease.

The present invention is based on these experiences and provides a flat plate for colored pavement that can overcome the drawbacks of conventional colored pavement. Stability 3
This is a colored flat plate for pavement that weighs 50 kg or less and has a flow value of 40 or more, is molded into a flat plate, and is cut into a desired thickness with the upper surface as the cutting surface.

The colored pavement mixture used in the present invention contains stone as aggregate, fine sand and colored artificial crushed stone and/or natural colored crushed stone, binder such as decolored asphpult resin, and pigment as inorganic pigment chromium oxide (green). , Hengara (red)
Pigments such as 1mium yellow (yellow) and cyanine blue (blue) as organic pigments are used depending on the color of the coloring.

Colored artificial crushed stone and natural colored crushed stone are generally those with a size of 13 to 2.51, and the color is appropriately selected depending on the usage situation of the paving slab to be manufactured. In order to make the Marshall stability of this heated mixture 350 kg or less and the flow value 40 or more, each of the above materials is mixed in weight ratio with colored artificial crushed stone, and/or
Or natural colored crushed stone (13-2.51) 10-40%, fine sand 20-50%, stone powder 20-35%, decolorized asphalt
Resin (penetration 80-I00, softening point 40-50°C)
It can be reached by mixing 7-12% pigment, 0.2-3% pigment.

The heated mixture for colored pavement thus obtained is molded into a flat plate, which is further rotated at high speed by a diamond 1-
The plate is cut into two to several pieces using a "blate" without deformation, and the thickness of the cut plate 512 is preferably a thin plate of about several fins.

According to this invention, first the Marshall stability is 350.
When we tried to make a colored paving slab using a heated colored mixture based on the general standard for a weight of 40 kg or more and a flow value of 40 or less, the joints did not become integrated and the joints opened due to expansion and contraction. However, in particular, when the mixing rate of colored artificial crushed stone or natural colored crushed stone is increased, and the cut surface of colored artificial crushed stone or natural colored crushed stone is made into colored pavement that does not have a sharp definition, or in places with high ground pressure, When trying to provide shear resistance against deformation flow, the adhesion between the pavement plates was poor, and the joints opened due to expansion and contraction B2 due to temperature changes.

Next S2: Completely the opposite, when a colored paving slab was created from a heated colored mixture with a Marshall stability of 350 kg or less and a free value of 40 or more, adhesion was caused by expansion and contraction due to subsequent temperature changes of the same flat plate, and the existing construction. It adapts to the deformation of the pavement, and the butt joints between the colored pavement plates do not open, making it possible to create a one-piece colored pavement.

Therefore, the 2'Lf two-colored pavement surface should be flexible.
? 1-1 and J\ is extremely thin, so it will not bulk up even when attached to an existing paved surface, and there is no need to consider how it will fit with surrounding structures.Also, it is thin and flexible, so it can be used on curved surfaces. Even non-technical people can easily perform it, and it has a high level of f11. In addition, colored artificial crushed stone,
Oiko'/Mata:! Dust and other substances adhere to the cut surfaces of natural colored crushed stone.
- Since there is no Il, the clarity is reduced. Further, by appropriately combining the mixing ratio of colored artificial crushed stone and natural colored crushed stone in the colored pavement mixture, and the color, a colored flat plate surface for pavement can be obtained which is rich in variation. By increasing the mixing ratio of colored artificial crushed stone and/or natural colored crushed stone, it is possible to further prevent the deformation and flow of colored pavement in areas where ground pressure is high, and it also improves its properties such as not losing clarity. demonstrate. In addition, the colored pavement flat plates of the present invention can adapt to expansion and contraction due to temperature changes and deformation of the existing pavement after tension LJ, and the colored pavement flat plates can be pressed against each other to form a single piece of colored pavement without opening the joints. It has various effects such as being able to

Next, examples of the present invention will be shown.

〔Example〕

13-5 night green colored artificial crushed stone (weight) 209%,
13-5mm white natural crushed stone (weight) 536, fine sand 35
9 stones (weight M), stone hammering) 30% (weight), bleaching asphalt resin 9% (weight), green pigment 1 (weight) 9 hairs to 17
Mixing was carried out at 5'C to obtain a heated mixture for colored pavement. This colored paving heated mixture has a Marshall stability of 305 kg.
, the flow value was 52. This mixture was heated at 175°C to a thickness of 13 cm, a length of 200 mm, and a medium diameter of 100 mm as shown in the figure.
By pouring into the fin, °ζ flat,! 1i (11) was molded, and after cooling, this flat plate (1) was cut into two with a 3-diameter thick diamond blade (2) while pouring water into a 5111P thick plate.
Two flexible colored paving slabs (1') of a green base (3) dotted with white natural colored crushed stone cut surfaces (4), 200 cm long and 100 cm in diameter, were prepared by 1:7. This colored pavement plate is
It is easy to attach to curved surfaces, which are not common on existing paved surfaces, and you can use a burner to add tension to any misaligned or uneven upper joints! ) and then pounded with a mallet, the level difference was corrected and a beautifully colored paving with tight joints and a single surface was obtained.

[Brief explanation of drawings]

The drawing is an explanatory view showing an example of the manufacturing process of the colored pavement plate according to the present invention. (1) Flat plate made by pour molding (1') Colored flat plate for paving (2) Diamond play 1 (3) Base (4) Colored aggregate such as natural colored crushed stone and/or colored artificial crushed stone Patent applicant 4th place Yoshitaka Yoshitaka Person Masu Kobori (and 2 others)

Claims (1)

[Claims] 1 Marshall stability of heated mixture for colored pavement mixed with colored artificial crushed stone and/or natural colored crushed stone is 350 kg
Hereinafter, a colored flat plate for paving is characterized in that it is molded into a flat plate shape with a flow value of 40u or more, and the upper surface is cut to a required thickness, and the cut surface is used as a paving surface.