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Slag paving material Product List

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Water-retaining composite slag pavement material "Eco Cool Sand"

Water-retaining composite slag pavement material "Eco Cool Sand"

Melted slag generated from civic life is turned into paving material and returned to the local community!

"Eco-Cool Sand" is an environmentally friendly paving material that reuses waste melting slag. It uses "melted slag," which is processed from household "living waste," and "blast furnace crushed slag," a byproduct of steelmaking, as aggregates. It excels in permeability and water retention, and mitigates the heat island effect through evaporation from the surface. In addition to not creating steps like blocks, it provides a non-slip and soft walking sensation, reducing the burden on the legs and back, thus achieving a user-friendly pavement. 【Features】 ■ Excellent permeability and water retention, capable of handling rainfall of 30mm per hour ■ Mitigates the heat island effect through evaporation from the surface ■ Designated material under the Green Purchasing Law, with a recycling rate of over 80% ■ Flat and compliant with "Universal Design" standards ■ Exhibits excellent weed prevention and durability, harmonizing with the surrounding landscape *For more details, please refer to the PDF materials or feel free to contact us.

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[Case Study] Eco Cool Sand (Parking Area)

[Case Study] Eco Cool Sand (Parking Area)

Introducing the case of "Eco Cool Sand" being adopted at the Hanyu Parking Area!

The architectural exterior of the Hanbu PA on the Tohoku Expressway, which has become a topic of conversation as a theme park-style parking area, has adopted our "Eco Cool Sand." Hanbu PA "Onihei Edo-dokoro" is a new parking area that recreates the streets of Edo from 200 years ago exactly as they were, based on expert historical research. 【Reasons for Adoption】 ■ The rustic texture matches the retro Edo townhouses. ■ Permeable pavement enhances user convenience. ■ The water-splashing effect keeps it refreshing in summer. ■ Made from recycled materials, it is eco-friendly. *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] Color Sand (Park Stairs)

[Case Study] Color Sand (Park Stairs)

Introducing a case where permeable and water-retaining paving material "Color Sand" was used on the park stairs!

In ITO City, Shizuoka Prefecture, the permeable and water-retaining paving material "Color Sand" has been adopted for the stairs at "Komuroyama Park." "Komuroyama Park" is a natural park centered around Mount Komuro, which stands at an elevation of 321 meters and is located within the Fuji-Hakone-Izu National Park. From the panoramic observation deck at the summit, visitors can enjoy a 360-degree view of the Izu Seven Islands floating in Sagami Bay and the Amagi Mountain Range. Our product has been adopted for the 273 steps leading to the "Dinosaur Plaza" within this park. [Reasons Why Color Sand is Suitable for Stairs] - Slip-resistant even in the rain - High permeability provides moisture to surrounding vegetation - Soft walking sensation reduces strain on the legs and back - High weed prevention effect keeps the stairs free from grass, ensuring safe walking - Abundant color variations match the natural landscape *For more details, please refer to the PDF materials or feel free to contact us.

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[Case Study] Colored Sand (Around Toilets, Barrier-Free Design)

[Case Study] Colored Sand (Around Toilets, Barrier-Free Design)

Introducing examples of restroom renovations and barrier-free modifications using permeable and water-retaining paving material "Color Sand."

The permeable and water-retaining blast furnace slag paving material "Color Sand" is increasingly being adopted for restroom renovations and barrier-free construction. It is slip-resistant even when wet and suitable for wheelchair ramps. To enhance visibility, it is also possible to change the color of the ramp section during installation. Due to its excellent drainage, it is also suitable for areas around drinking fountains. [Examples] ■ Restroom renovation work ■ Barrier-free construction ■ Wheelchair ramps ■ Areas around drinking fountains *For more details, please refer to the PDF materials or feel free to contact us.

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[Case Study] Color Sand (Imagawa Promenade)

[Case Study] Color Sand (Imagawa Promenade)

A spacious and easy-to-walk sidewalk for drainage! Introducing the case study of the permeable and water-retaining paving material "Color Sand."

In Takaishi City, Osaka Prefecture, our permeable and water-retaining paving material 'Color Sand' has been adopted for the "Imagawa Promenade." The "Imagawa Promenade," constructed in March 2016, was previously a drainage channel where domestic wastewater flowed in, causing odors and insects to emerge in the summer, which troubled the local residents. In response to calls from nearby residents for renovations that consider hygiene and safety, the river was enclosed and buried underground, while our product, which excels in permeability and water retention, was used for the surface. It has transformed into a spacious and easy-to-walk promenade. 【Benefits of Adoption】 ■ Excellent water retention, capable of handling heavy rain of 30mm/h ■ The fine surface texture makes it less slippery even in the rain ■ No water splashing, making it easy to walk on even when the surface is wet ■ Soft walking sensation reduces strain on the legs and back ■ Color options that harmonize with the surrounding landscape are available *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] Color Sand (Kosobe Town Park)

[Case Study] Color Sand (Kosobe Town Park)

Renewal of the garden path with high landscape quality! Introducing examples of the use of permeable and water-retaining paving material "Color Sand."

In Takatsuki City, Osaka Prefecture, our permeable and water-retaining paving material 'Color Sand' has been adopted at Kosobecho Park. By using a soft red color, the previously unappealing paths around the reservoir have been renewed. 【Benefits of Adoption】 ■ Disperses direct heat, reducing glare even on hot days ■ The surface has fine bumps, making it less slippery even when it rains ■ No water splashes, 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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[Information] Regarding the Compatibility of Colored Sand

[Information] Regarding the Compatibility of Colored Sand

A detailed explanation of examples of performance indicators in road and shoulder pavement!

This document explains the suitability of permeable blast furnace slag pavement material "Color Sand." It includes information on the functions of road surfaces and the performance of pavements in sidewalks and bicycle paths, as well as examples of performance indicators for pavements in roadways and shoulders. [Contents] ■ Functions of road surfaces and performance of pavements in sidewalks and bicycle paths ■ Examples of performance indicators for pavements in roadways and shoulders ■ "Surface requirements" in "sidewalks" and "pavement performance" in permeable blast furnace crushed slag pavement *For more details, please refer to the PDF document or feel free to contact us.

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Permeable blast furnace slag paving material "Color Sand" *Case study collection giveaway

Permeable blast furnace slag paving material "Color Sand" *Case study collection giveaway

Adopted at Ueno Zoo's Panda Forest! A paving material that excels in permeability and water retention, with examples of surface temperatures as low as -10°C! It combines durability and aesthetic appeal.

The permeable and water-retaining paving material "Color Sand" utilizes finely porous aggregate "Blast Furnace Water-quenched Slag," achieving high permeability and water retention as a landscape paving material. Depending on environmental conditions, its durability is approximately 15 to 20 years. It has a texture similar to soil, making it easy to blend into natural landscapes as "slag pavement." Choosing a gray tone can match urban landscapes as well. It allows rainwater to permeate and return to the ground, alleviating the "heat island phenomenon" in urban areas. There have been instances where surface temperatures were about 10°C lower compared to asphalt paving. It is designed to minimize puddles and has a high slip resistance, making it easy to walk on even during and after rainfall. 【Features】 ■ Excellent functionality (permeability, water retention, freeze resistance, durability, slip resistance) ■ Utilizes aggregates designated for procurement under the Green Purchasing Law, with a recycling rate of over 80% ■ Meets the "surface requirements" needed for sidewalks and bicycle paths ■ Over 1,800 instances of adoption in "public works" ordered by municipalities nationwide ★ Currently, we are offering a "case study collection" for parks and architectural landscaping. You can view it immediately via the 【PDF download】.

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Differences in functionality between colored sand and porous concrete pavement.

Differences in functionality between colored sand and porous concrete pavement.

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

This document explains the differences in permeability and water retention functions between "permeable and water-retaining blast furnace slag pavement (color sand)" and "porous concrete pavement." Porous concrete pavement allows for point-based permeability, while color sand enables surface-based permeability, distinguishing it as a new type of permeable pavement that can be differentiated from conventional permeable pavements. Its advancement and novelty have been recognized, and it has also obtained a "patent." Additionally, explanations regarding "water retention performance and its effects" and "the duration of sustained permeability performance" can be viewed through external links. [Technical Information Introduction] ■ Permeability performance ■ Water retention performance and its effects ■ Duration of sustained permeability performance *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

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Similarities and differences between colored sand and sand pavement.

Similarities and differences between colored sand and sand pavement.

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

This document explains the similarities and differences between "permeable and water-retaining blast furnace slag pavement (colored sand)" and "masado soil pavement." Both have common functions as permeable and water-retaining pavements, and they are often confused because the aggregate particle size ranges from 5mm to 0mm, resulting in a similar appearance. Additionally, as pavement materials for pedestrian roads, they show similarities in major applications such as sidewalks, walking paths, and park paths, as well as in design pricing. For more detailed explanations regarding the differences, please refer to the external link. 【Technical Information Overview】 ■ Similarities - Appearance, major applications, design pricing ■ Differences - Pavement aggregate, permeability, frost resistance, bending strength, pavement color, durability *For more details, please refer to the PDF materials or external link page, or feel free to contact us.

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Regarding the "technical basis" of pavement composition in colored sand.

Regarding the "technical basis" of pavement composition in colored sand.

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

This document explains the "technical basis" for the pavement composition of "permeable high furnace slag pavement (colored sand)." This pavement is not intended for "roadway pavement" aimed at heavy vehicle traffic, but rather is specifically designed for "pedestrian pavement" to accommodate pedestrian passage. Therefore, as a public standard, it complies with the "Pavement Design Manual," Chapter 7, which specifically defines the selection, classification, and pavement structure for pedestrian-related road pavements, including "pavements for sidewalks and bicycles." Additionally, explanations regarding "the basis for pavement composition and thickness" and "classification as pedestrian-related road pavement materials" can be found via external links. [Introduction of Technical Information] ■ Classification of pavement use ■ Basis for pavement composition and thickness ■ Classification as pedestrian-related road pavement materials *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

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The technical basis for color sand being compatible with "universal design."

The technical basis for color sand being compatible with "universal design."

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

This document explains the technical basis for the "permeable and water-retaining blast furnace slag pavement (color sand)" being compliant with "universal design." The target value for slip resistance is set at BPN 40 or higher on wet surfaces, and the color sand pavement exceeds 62, thus meeting the target value. Additionally, as it is a site-cast pavement, it does not pose obstacles for pedestrians and wheelchair users, allowing for smooth curved construction, making it suitable for wheelchair users and visually impaired individuals. Furthermore, it excels in shock absorption, permeability, and water retention, with the main factors contributing to overall "walkability" being elasticity, foot feel, and slip resistance. It is stated that when selecting walking surfaces, it is necessary to evaluate overall ease of walking and running. **Features** - Exceeds the target value for slip resistance - Allows for smooth curved construction - Excellent shock absorption and soft walking sensation - Maintains permeability without creating puddles that hinder walking - Highly superior in water retention capacity and retention time due to its porous structure *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.*

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Permeable high furnace slag paving material 'Color Sand' for cemeteries and graveyards.

Permeable high furnace slag paving material 'Color Sand' for cemeteries and graveyards.

Are you having trouble with weeding and cleaning the grave? With "Color Sand," you can simplify the maintenance of the grave with its high weed prevention effect and permeability! *Case studies available.

The permeable and water-retaining paving material "Color Sand" is a permeable high furnace slag paving material characterized by high weed prevention, permeability, and water retention. By laying it in paths of cemeteries and similar areas, maintenance management is simplified, allowing for a reduction in management costs. 【Do you have any of these concerns?】 ■ Weeds grow a lot in spring to autumn... ■ Cleaning up fallen leaves in autumn is a hassle... ■ I don't live near the grave, so I can't take care of it... ⇒ We can solve these problems! *For more details, please download the PDF or feel free to contact us.

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[Case Study] Permeable Blast Furnace Slag Paving Material 'Color Sand'

[Case Study] Permeable Blast Furnace Slag Paving Material 'Color Sand'

Permeable and water-retaining paving material "Color Sand" has been reintroduced to Akebono Children's Forest Park!

In 1997, shortly after the establishment of Sanwa Grand Co., Ltd., our colored sand was adopted at "Akebono Children's Forest Park" in Hannō City, Saitama Prefecture. This park received the Minister of Construction Award at the 14th Urban Park Competition. Since then, it has been introduced to many people as a representative example of our adopted sites. About 20 years later, during the renewal, permeable and water-retaining colored sand was once again chosen for the park path paving. 【Features】 ■ Excellent permeability, water retention, and freeze resistance ■ Over 80% recycling rate due to the use of aggregates specified in the Green Purchasing Law ■ Meets the "surface requirements" needed for sidewalks and bicycle paths ■ Over 1,500 adoption cases in "public works" ordered by municipalities nationwide *For more details, please refer to the PDF materials or feel free to contact us.

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Permeable blast furnace slag paving material "Color Sand"

Permeable blast furnace slag paving material "Color Sand"

Perfect for green infrastructure initiatives! This paving material boasts excellent durability, along with permeability, water retention, and aesthetic appeal.

The efforts for green infrastructure in the park shown in the photo have been recognized. The permeable and water-retaining paving material 'Color Sand' utilizes 'blast furnace crushed slag,' an aggregate with a fine porous structure, achieving high permeability and water retention. Depending on environmental conditions, its durability is approximately 15 to 20 years. It has a texture close to that of soil, making it easy to blend into natural landscapes as 'slag pavement.' Choosing a gray tone allows it to match urban landscapes as well. It allows rainwater to permeate and return to the ground, alleviating the 'heat island phenomenon' in urban areas. It is designed to minimize puddles and has a high slip resistance, making it easy to walk on even during and after rainfall. [Features] - Excellent functionality (permeability, water retention, freeze resistance, durability, slip resistance) - Uses aggregates specified for procurement under the Green Purchasing Law, with a recycling rate of over 80% - Meets the 'surface requirements' needed for sidewalks and bicycle paths - Over 1,800 instances of adoption in 'public works' ordered by municipalities nationwide - Perfect for the recently highlighted initiatives of 'green infrastructure' (permeability and water retention) ★ Currently, we are offering a 'case study collection' for parks and building exteriors. You can view it immediately via [PDF download].

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Permeable and water-retaining blast furnace slag paving material 'Color Sand' *Case study collection giveaway

Permeable and water-retaining blast furnace slag paving material 'Color Sand' *Case study collection giveaway

Adopted at Fukaya Terrace Park! This environmentally friendly paving material excels in permeability and water retention, combining durability and aesthetic appeal. It is also suitable for SDGs initiatives!

At the newly established Fukaya Terrace Park, located very close to Fukaya Hanazono Station in Fukaya City, Saitama Prefecture, permeable pavement and water-retaining colored sand have been adopted. This new park opened simultaneously with an adjacent agricultural experience facility. The sand beige color, which is reminiscent of soil, matches the concept of the facility and looks appealing. An outlet mall is set to open in October right across the road, making this area likely to gain even more attention in the future.

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Permeable pavement and water-retaining pavement materials [Case study: Peace Memorial Park]

Permeable pavement and water-retaining pavement materials [Case study: Peace Memorial Park]

Introducing case studies of permeable and water-retaining paving material "Color Sand"! <Peace Memorial Park (Hiroshima Prefecture)> *Constructed in 2019

We have adopted permeable and water-retaining colored sand pavement materials for the paths in Hiroshima's Peace Memorial Park. There are many travelers from abroad, and pedestrians and cyclists are constantly present. We feel very honored to have our materials used in this park, which is representative of Hiroshima and is also a famous cherry blossom viewing spot, located close to the city center.

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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 seen in the initial stages of conventional earth pavements. The durability is also excellent due to the slag's "latent hydraulicity" (a characteristic where strength increases over time due to hydration reactions). 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 composition of blast furnace crushed slag mixed with sandy soil ■ Resistant to water overflow 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.

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

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

Introducing a case where permeable and water-retaining paving material "Color Sand" has been adopted at a famous cherry blossom spot!

Our permeable and water-retentive paving material "Color Sand" has been adopted in many famous cherry blossom spots. At the "Chidorigafuchi Greenway" in Chiyoda Ward, 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, our light brown product enhances the natural color 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 Ward, Tokyo) *For more details, please refer to the PDF materials or feel free to contact us.

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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 progressing. Approximately 4,000 m² of this product has been used for pathways in parks and sidewalks around retention basins. The paving of this product provides a comfortable and safe walking experience for the elderly and those with disabilities, excelling in barrier-free design. 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 used for pathways in parks and sidewalks around retention basins ■ Paving that excels in barrier-free design *For more details, please refer to the PDF materials or feel free to contact us.

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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 moisture-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 case studies. 【Features】 ■ The Color Sand on the museum side is a custom gray color ■ Consistency with the cool impression of the museum *For more details, please refer to the PDF document or feel free to contact us.

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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 paving material "Color Sand."

In Chuo Ward, Tokyo, our permeable and moisture-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 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 materials or feel free to contact us.

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[Case Study] Color Sand (Yokosuka Shobu Park)

[Case Study] Color Sand (Yokosuka Shobu Park)

Introducing examples of the use of permeable and water-retaining paving material "Color Sand" for creating garden paths that are less prone to puddles and easy to walk on!

In Yokosuka City, Kanagawa Prefecture, our permeable and water-retaining paving material "Color Sand" has been adopted at the "Yokosuka Iris Garden." Opened in 1988, the "Yokosuka Iris Garden" had severe deterioration of its existing path paving, and it has now been renewed with our products. It is utilized as a path that is easy to walk on, even on rainy days, as it is less prone to puddles. In addition to irises, the garden also features wisteria, rhododendrons, and water lilies, providing enjoyment throughout the year. 【Benefits of Adoption】 ■ Disperses direct heat, reducing glare even in hot weather ■ The fine texture of the surface makes it less slippery even when it rains ■ No water splashes, 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 selected *For more details, please refer to the PDF materials 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】 ■ Disperses direct heat, reducing glare even on hot days ■ The surface has fine bumps, making it less slippery even in the rain ■ No water splashes, 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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Reasons why colored sand is strong against "freeze-thaw" cycles.

Reasons 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 during winter, making it "strong against frost damage." Among our pavement composition, the "filter layer" made from high furnace slag pavement, when used alone, has a significant effect in suppressing "frost heave phenomena." 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 release pressure caused by volume expansion during freezing. ■ Potential Hydraulic Properties - The main components of water-cooled slag (silica, alumina, lime, magnesia) solidify over time due to repeated water penetration. ◎ 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.

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

The technical basis of "permeable blast furnace slag pavement" that balances 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 the "Permeable and Water-retaining Blast Furnace Slag Pavement (Color Sand)" that achieves both permeability and water retention. All of our paving materials use "water-quenched 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 allow water to pass through at "points," our paving materials enable permeability across "surfaces" 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. 【Introduction to Technical Information】 ■ 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.

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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 document explains the characteristics and benefits of the blast furnace crushed slag used in "permeable blast furnace slag pavement (color 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 environmental load reduction, 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 uses of blast furnace slag" can be found through external links. 【Technical Information Introduction】 ■ What is "steel slag"? ■ Characteristics and general uses of "blast furnace slag" ■ Reasons for adopting "blast furnace crushed slag" - Environmental load reduction, 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.

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Permeable pavement and water-retaining pavement materials [Case study: Nishitokofun group]

Permeable pavement and water-retaining pavement materials [Case study: Nishitokofun group]

Introducing examples of the adoption of permeable and water-retaining pavement material "Color Sand"! <Nishitokofun Group (Saitama Prefecture)> *Constructed in 1998

One of the three burial mound groups in Moroyama Town, Saitama Prefecture, is the Nishito Burial Mound Group, where permeable and water-retaining colored sand paving materials have been adopted for the Nishito No. 2 mound. A quarter of a century has passed since the construction, but there has not been significant damage, and it is still in use as an active pavement.

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Permeable pavement and water-retaining pavement materials [Case study: Wadahori Greenway, Nerima Ward]

Permeable pavement and water-retaining pavement materials [Case study: Wadahori Greenway, Nerima Ward]

Introducing examples of the adoption of permeable and water-retaining pavement material "Color Sand"! <Wadahori Greenway, Nerima Ward (Tokyo)> *Constructed in 2023

In the Wadahori Greenway located in Nerima Ward, Tokyo, permeable pavement and water-retaining colored sand have been adopted. Previously, the greenway had a dark atmosphere, but with the complete renewal, it has transformed into a bright and easy-to-walk path.

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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 resistant to slipping 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, combined with cement additives and inorganic pigments as supplementary 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 replenished underground, mitigates the "heat island phenomenon" in urban areas, revives spring water, encourages the growth of trees and flowers, and contributes 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.

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