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Paving materials Product List

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Permeable pavement and water-retaining pavement materials [Case study: Fukazawa Komorebi Green Space]

Permeable pavement and water-retaining pavement materials [Case study: Fukazawa Komorebi Green Space]

Introducing case studies of permeable and water-retaining pavement material "Color Sand"! <Fukasawa Komorebi Green Space (Tokyo)> *Constructed in 2023

At the Fukazawa Komorebi Green Space in Setagaya, Tokyo, permeable and water-retaining colored sand pavement materials have been adopted. This pavement blends seamlessly into the lush landscape and has minimal impact on the growth of surrounding plants.

  • Exterior and paving materials <General>
  • Paving Materials

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Permeable soil-based slag paving material "Eternal Sand"

Permeable soil-based slag paving material "Eternal Sand"

Earth-based slag pavement that solves the weaknesses of earth-based pavement.

By using blast furnace crushed slag as the main aggregate, we have eliminated the peeling and flaking that were observed in the initial stages of conventional soil pavements. The "latent hydraulicity" of the slag (a characteristic that increases strength over time due to hydration reactions) also contributes to its excellent durability. It has a natural color and texture similar to soil, without the artificial impression often seen in asphalt or resin-based materials. It also excels in functions such as permeability, water retention, and slip resistance. 【Features】 ■ Main ingredient is blast furnace crushed slag mixed with sandy soil ■ Resistant to overflowing water on the surface, accommodating heavy rainfall of 30mm/h ■ Mitigates the heat island effect through evaporation from the surface ■ Provides moisture to trees and flowers through evaporation, promoting growth ■ Universal design that is easy for anyone to walk on ■ Extended lifespan compared to conventional paving materials ■ Reduces the extraction of natural materials by using artificial aggregates (recycled materials) *For more details, please refer to the PDF document or feel free to contact us.

  • Paving Materials
  • Exterior and paving materials <General>

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[Case Study] Color Sand (Famous Cherry Blossom Spot)

[Case Study] Color Sand (Famous Cherry Blossom Spot)

Introducing a case where the permeable and water-retaining paving material "Color Sand" was adopted at a famous cherry blossom site!

Our permeable and water-retaining paving material "Color Sand" has been adopted in many famous cherry blossom spots. At the "Chidorigafuchi Greenway" in Chiyoda, Tokyo, our product's high permeability and water retention provide moisture to approximately 260 cherry trees planted along the 700-meter-long promenade. Additionally, at "Gongendo Park" in Satte City, Saitama Prefecture, the light brown color of our product enhances the natural contrast between the pink cherry blossoms and yellow rapeseed flowers. [Examples] - Gongendo Park (Satte City, Saitama Prefecture) - Sagami River (Atsugi City, Kanagawa Prefecture) - Karasumori Park (Fujisawa City, Kanagawa Prefecture) - Kashio River (Yokohama City, Kanagawa Prefecture) - Akamagawa Irrigation (Iruma City, Saitama Prefecture) - Chidorigafuchi Greenway (Chiyoda, Tokyo) *For more details, please refer to the PDF materials or feel free to contact us.

  • Exterior and paving materials <General>

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[Case Study] Color Sand (Tohoku Reconstruction)

[Case Study] Color Sand (Tohoku Reconstruction)

Introducing a case where permeable and water-retaining pavement material "Color Sand" was adopted in the Tohoku Reconstruction Group Relocation Site!

The permeable and water-retaining paving material "Color Sand" is playing an active role in the "Tohoku Reconstruction." In the Tamaupa West area of Iwanuma City, Miyagi Prefecture, the land development work for the reconstruction group relocation site has been completed, and the construction of new homes is also progressing. Approximately 4,000 m² has been adopted for paths in the park and sidewalks around the retention pond. The paving of this product is barrier-free, allowing the elderly and those with disabilities to walk comfortably and safely. Additionally, it is resistant to freeze damage (freeze-thaw cycles), and there are sites in the Tohoku region that have been in use for over 10 years without any issues. [Case Study] - Reconstruction group relocation site (Tamaupa West area, Iwanuma City, Miyagi Prefecture) - Approximately 4,000 m² adopted for paths in the park and sidewalks around the retention pond - Paving that excels in barrier-free design *For more details, please refer to the PDF document or feel free to contact us.

  • Exterior and paving materials <General>

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[Case Study] Sumida Hokusai Museum

[Case Study] Sumida Hokusai Museum

Introducing examples of the use of the paving material "Color Sand."

The "Sumida Hokusai Museum," which exhibits works by Katsushika Hokusai associated with Sumida Ward in Tokyo, has adopted the permeable and water-retaining paving material "Color Sand." In conjunction with the silver-glimmering exterior walls of the museum, the Color Sand on the museum side is a custom gray color. Please refer to the catalog for other examples of adoption. 【Features】 ■ The Color Sand on the museum side is a custom gray color ■ Cohesiveness with the cool impression of the museum *For more details, please refer to the PDF document or feel free to contact us.

  • Exterior and paving materials <General>

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[Case Study] Color Sand (Tsukishima River Greenway)

[Case Study] Color Sand (Tsukishima River Greenway)

A bright promenade where you can enjoy the scenery and cherry blossoms! Introducing a case study on the use of permeable and water-retaining pavement material "Color Sand."

In Chuo Ward, Tokyo, our permeable and water-retaining paving material "Color Sand" has been adopted for the "Tsukishima River Greenway." The "Tsukishima River Greenway," which used to be dark and somewhat worn, has been transformed into a bright promenade where visitors can enjoy the riverside scenery and cherry blossoms after renovation. 【Benefits of Adoption】 ■ Disperses direct heat, reducing glare even on hot days ■ The finely textured surface makes it less slippery even in the rain ■ No water splashing, making it easy to walk on even when the surface is wet ■ Provides a soft walking sensation, reducing strain on the legs and back ■ Color options that harmonize with the surrounding landscape can be chosen *For more details, please refer to the PDF document or feel free to contact us.

  • Exterior and paving materials <General>
  • Paving Materials

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[Case Study] Color Sand (Yokosuka Shobu Park)

[Case Study] Color Sand (Yokosuka Shobu Park)

A garden path that is less prone to puddles and easy to walk on! Introducing examples of the use of permeable and water-retaining paving material "Color Sand."

In Yokosuka City, Kanagawa Prefecture, our permeable and water-retaining paving material "Color Sand" has been adopted at the "Yokosuka Shobu-en" (Yokosuka Iris Garden). Opened in 1988, the "Yokosuka Shobu-en" had severely deteriorated existing path pavements, which have now been renewed with our products. It is utilized as a path that is easy to walk on even on rainy days, as it minimizes puddles. The garden offers not only iris flowers but also wisteria, rhododendrons, and water lilies, providing enjoyment throughout the year. 【Benefits of Adoption】 ■ Disperses direct heat, reducing glare even on hot days ■ The fine texture of the surface makes it less slippery even in the rain ■ No water splashing, making it easy to walk on even when the surface is wet ■ Provides a soft walking sensation, reducing strain on the legs and back ■ Color options that harmonize with the surrounding landscape can be chosen *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] Color Sand (Shakujii River)

[Case Study] Color Sand (Shakujii River)

Bright and comfortable walkways even on rainy days! Introducing examples of the use of permeable and water-retaining paving material "Color Sand."

The walking path along the "Shakujii River" in Tokyo has adopted our permeable and water-retaining paving material, "Color Sand." Before the installation, when it rained, many people walked on the roadway due to poor footing, raising safety concerns. After the installation, even when it rains, puddles do not form, allowing for comfortable walking. As a result, the number of people walking on the roadway has decreased, which has pleased the local government officials. [Benefits of Adoption] - Direct heat is dispersed, reducing glare even on hot days. - The surface has fine bumps, making it less slippery even when it rains. - There is no water splashing, and it is easy to walk on even when the surface is wet. - It provides a soft walking sensation, reducing strain on the legs and back. - Colors that harmonize with the surrounding landscape can be chosen. *For more details, please refer to the PDF document or feel free to contact us.

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Paving material / Permeable blast furnace slag paving material 'Color Sand'

Paving material / Permeable blast furnace slag paving material 'Color Sand'

Achieving both permeability and water retention! With a finely textured surface that prevents water splashing, this environmentally friendly new walking path pavement material is less slippery even when wet from rain!

Color sand is an environmentally friendly new pedestrian road paving material that uses "blast furnace crushed slag," a byproduct of steelmaking, as the main aggregate, along with cement additives and inorganic pigments as secondary materials. These components are mixed and compacted using a compaction machine to finish the product. It allows rainwater, an invaluable water resource for the Earth, to permeate and be reabsorbed into the ground, alleviating the "heat island phenomenon" in urban areas, reviving spring water, promoting the growth of trees and flowers, and contributing to the creation of urban environments rich in "water and greenery." 【Features】 - Excellent permeability - No puddles during rainfall, non-slip - Mitigates the heat island phenomenon - Maintains high water retention - Soft walking sensation For more details, please contact us or download the catalog.

  • Paving Materials
  • Exterior and paving materials <General>
  • Paving of sidewalks, roads, parking lots and stadiums

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Paving material / Permeable blast furnace slag paving material 'Color Sand'

Paving material / Permeable blast furnace slag paving material 'Color Sand'

A paving material that balances permeability and water retention! Its finely textured surface prevents water splashing, making it a new environmentally friendly walking path paving material that is less slippery even when wet!

Permeable and water-retaining paving material colored sand uses "blast furnace crushed slag," a byproduct of steelmaking, as the main aggregate, along with cement additives and inorganic pigments as secondary materials. These components are mixed and compacted using a roller machine to create an environmentally friendly new type of pedestrian road paving material. It allows the precious water resource of the Earth, "rainwater," to permeate and be returned to the ground, alleviating the "heat island phenomenon" in urban areas, reviving spring water, promoting the growth of trees and flowers, and contributing to the creation of urban environments rich in "water and greenery." 【Features】 ○ Excellent permeability ○ No "puddles" form during rainfall, and it is non-slip ○ Alleviates the heat island phenomenon ○ Maintains high "water retention" ○ Soft walking sensation For more details, please contact us or download the catalog.

  • Paving Materials
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  • Paving of sidewalks, roads, parking lots and stadiums

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The reason why colored sand is strong against "freeze-thaw" cycles.

The reason why colored sand is strong against "freeze-thaw" cycles.

Introducing technical information about permeable blast furnace slag pavement "Color Sand"!

This document explains the reasons why "permeable and water-retaining pavement materials (color sand)" are strong against "freeze-thaw" cycles. Color sand is a pedestrian pavement material that possesses permeable and water-retaining functions while being sufficiently resistant to the repeated effects of freeze-thaw cycles in winter, making it "strong against frost damage." Among our pavement composition, the "filter layer" made from high furnace slag pavement, which is the aggregate of this pavement material, has a significant effect in suppressing "frost heave" when used alone. Furthermore, in freeze-thaw tests conducted at the Central Testing Laboratory of the Building Materials Testing Center, no cracking or destruction occurred even after completing 200 cycles. 【Excellent Features of the Aggregate (High Furnace Slag)】 ■ Porous Structure - Numerous fine voids relieve pressure caused by volume expansion during freezing. ■ Potential Hydraulicity - The main components of water-quenched slag (silica, alumina, lime, magnesia) solidify over time due to repeated water infiltration. ◎ Sufficiently resistant to the repeated effects of freeze-thaw cycles. *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

  • Paving Materials
  • Exterior and paving materials <General>
  • Paving of sidewalks, roads, parking lots and stadiums

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The technical basis of "permeable blast furnace slag pavement" that achieves both permeability and water retention.

The technical basis of "permeable blast furnace slag pavement" that achieves both permeability and water retention.

Introducing technical information about permeable and water-retaining blast furnace slag pavement "Color Sand"!

We will explain the technical basis of "Permeable and Water-retaining Blast Furnace Slag Pavement (Color Sand)" that achieves both permeability and water retention. All of our paving materials use "granulated blast furnace slag" as the main aggregate. The aggregate itself has a fine porous structure, allowing it to provide both permeability and water retention. While typical permeable paving materials achieve permeability at a "point," our paving materials achieve permeability over a "surface" due to the nature of the aggregate itself, resulting in less clogging and maintaining permeability performance over a long period. Additionally, by cleaning with high-pressure washers, the permeability can be restored to about 80%. Further explanations regarding "permeability performance" and "water retention performance" can be found through external links. [Technical Information Introduction] ■ Reasons for achieving both permeability and water retention ■ Permeability performance ■ Water retention performance ■ Our product lineup *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

  • Paving Materials
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  • Paving of sidewalks, roads, parking lots and stadiums

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About the characteristics and benefits of blast furnace crushed slag used in colored sand.

About the characteristics and benefits of blast furnace crushed slag used in colored sand.

Introducing technical information about permeable blast furnace slag pavement "Color Sand"!

This explains the characteristics and benefits of the blast furnace crushed slag used in "permeable blast furnace slag pavement (colored sand)." The "blast furnace crushed slag" used as aggregate in our paving materials is a byproduct generated simultaneously when producing pig iron from a blast furnace at major steel manufacturers. It can be easily separated as it floats on top of the molten pig iron. In addition to contributing to the reduction of environmental impact, it has characteristics such as excellent gradation balance due to its uniform particle size. Further explanations on topics such as "What is steel slag?" and "Characteristics and general applications of blast furnace slag" can be found through external links. 【Introduction of Technical Information】 ■ What is "steel slag"? ■ Characteristics and general applications of "blast furnace slag" ■ Reasons for adopting "blast furnace crushed slag" - Reduction of environmental impact, porous shape, latent hydraulicity, high internal friction angle, uniform particle size, safety *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

  • Paving Materials
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  • Paving of sidewalks, roads, parking lots and stadiums

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Permeable pavement and water-retaining pavement materials [Case study: Aoyama Cemetery]

Permeable pavement and water-retaining pavement materials [Case study: Aoyama Cemetery]

Introducing examples of the use of permeable pavement and water-retaining pavement material "Color Sand"! <Aoyama Cemetery (Tokyo)> *Construction in 2021

A historic cemetery established in the 7th year of the Meiji era, Tokyo Aoyama Cemetery. In this cemetery, we have adopted permeable and water-retaining colored sand pavement materials for the newly developed plaza path facing Higashi San-dori. While it presents a different image from the traditional Aoyama Cemetery, the natural colors create an urban atmosphere. Thanks to the permeable and water-retaining pavement, puddles are less likely to form even on rainy days, making it a more accessible area compared to the traditional cemeteries and graveyards.

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Permeable pavement and water-retaining pavement materials [Case study: Kawarayu Onsen Station campground]

Permeable pavement and water-retaining pavement materials [Case study: Kawarayu Onsen Station campground]

Introducing case studies of permeable and water-retaining paving material "Color Sand"! <Kawarayu Onsen Campground (Gunma Prefecture)> *Constructed in 2020

We have adopted permeable paving material colored sand for the pathway of the newly established campsite next to JR Agatsuma Line's Kawaharayu Onsen Station. Camping and barbecuing in the great outdoors must be very pleasant. In this context, we are making a modest contribution by providing easy-to-walk garden paths.

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