Improved soil Product List and Ranking from 8 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Nov 19, 2025～Dec 16, 2025
This ranking is based on the number of page views on our site.

Improved soil Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Nov 19, 2025～Dec 16, 2025
This ranking is based on the number of page views on our site.

  1. アグロジャパン Gifu//Other construction industries
  2. 吉光組 Ishikawa//General contractors and subcontractors
  3. 中京スポーツ施設 Aichi//Other construction industries
  4. 4 オデッサ・テクノス 本社、仙台工場、札幌工場、石狩工場 Miyagi//others
  5. 5 小池建材 Tokyo//others
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Improved soil Product ranking

Last Updated： Aggregation Period:Nov 19, 2025～Dec 16, 2025
This ranking is based on the number of page views on our site.

  1. To high-quality improved soil with excellent safety and workability! アグロジャパン
  2. Soil Recycling: Construction Generated Soil Recycling 'Stockyard' 吉光組
  3. Paving material EcoMix (granulated improved soil) 中京スポーツ施設
  4. 4 Improved Soil "Uni-Soil" [Ideal for backfilling/embankment/subgrade, weed suppression] オデッサ・テクノス 本社、仙台工場、札幌工場、石狩工場
  5. 5 Business Introduction: Improved Soil Production 小池建材

Improved soil Product List

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Paving material EcoMix (granulated improved soil)

Paving material EcoMix (granulated improved soil)

Recycling that loves the Earth. Certified product under the Aichi Prefecture Recycling Material Evaluation System.

This is an improved soil that has been recycled from the purified water generated and discarded during the process of producing drinking water at a water purification plant. It not only promotes the improvement of soil "mud" but also simultaneously achieves the opposing property of enhanced dust control. Ecolomix is an improved soil that realizes recycling and ecology, born from the needs of society.

  • Paving Materials
  • Secondary paving products

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Recycling of weak soil: Granular improved soil (super soil)

Recycling of weak soil: Granular improved soil (super soil)

It has ground support strength equivalent to high-quality sand and is highly durable.

Improvement of construction-generated soil is carried out using stabilization treatments such as quicklime; however, there are limitations to the improvement efficiency for high water content clay. Granular improved soil (super soil) is created by granulating the soil with a polymer modifier called Soil Hard, and then solidifying it using quicklime. This process allows low permeability sandy soil and high water content clay to be reused as high-quality sand. For more details, please contact us or refer to the catalog.

  • Water Supply Facilities

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Improved Soil "Uni-Soil" [Ideal for backfilling/embankment/subgrade, weed suppression]

Improved Soil "Uni-Soil" [Ideal for backfilling/embankment/subgrade, weed suppression]

Excellent compaction greater than that of soil (such as mountain sand) can be ensured! Safe and secure civil engineering materials regenerated from inorganic sludge such as construction sludge!

Improved soil/recycled soil "Uni-Soil" is a type of improved soil that stabilizes inorganic sludge generated from construction work and various projects into granulated form (granulation solidification) in a very short time using our unique method, the "Odessa System." 【Main Features】 ■ Excellent compaction beyond that of soil, with a cone index of 800 kN/m² or more (suitable for large vehicle traffic) ■ 100% recyclable as embankment, backfill material, subgrade material, and levee material ■ Does not revert to a muddy state due to rainfall (does not remudify) ■ Reliable stable quality, meeting all standard values of "environmental standards related to soil contamination" 【Quality Standards】 Ensures strength of at least Type 2 improved soil (cone index of 800 kN/m²) as specified in the "Construction Sludge Treatment Soil Utilization Technical Standards" by the Ministry of Land, Infrastructure, Transport and Tourism. 【Hokkaido Certified Recycled Product】 Improved soil (recycled soil) "Uni-Soil" has been recognized by Hokkaido for meeting established standards, promoting the proper use of recycled resources and reducing waste, thereby contributing to the formation of a recycling society.

  • Ground improvement materials
  • Aggregates and crushed stone
  • Earthworks

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Soil Recycling: Construction Generated Soil Recycling 'Stockyard'

Soil Recycling: Construction Generated Soil Recycling 'Stockyard'

Preventing environmental destruction and eliminating transportation costs! We reduce waste through soil recycling.

A "stockyard" is a facility that uses the liter method to recycle improved soil for reusing construction-generated soil from the site as backfill material or backfill material. Since construction-generated soil is recycled on-site, it significantly reduces disposal costs and new purchase costs. It can accommodate various types of soil, supply improved soil at a plant-level workload, eliminate mixing inconsistencies, and reduce the amount of solidifying agents. 【Benefits of Recycling Construction-Generated Soil】 ■ Prevention of environmental destruction and elimination of secondary pollution ■ Significant cost reduction made possible by on-site processing ■ High-performance soil improvement machinery ensures quality *For more details, please refer to the PDF document or feel free to contact us.

  • Other resource recycling

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To high-quality improved soil with excellent safety and workability!

To high-quality improved soil with excellent safety and workability!

[Presentation of Construction Achievements!] "Harden," an environmentally friendly soil improvement solidifying agent that poses no concerns about high alkalinity or leaching of harmful substances.

Agro Japan's environmentally friendly soil solidification material, the "Harden Series," effectively utilizes recycled resources from industrial by-products. 【Common Concerns Regarding Soil Solidification】 - There are concerns about the leaching of harmful substances, including hexavalent chromium... - Due to site conditions, it is necessary to consider alkaline leaching (high pH)... - During solidification, excessive strength may cause issues with re-excavation... - Even if soil improvement is achieved, it may revert to a muddy state when exposed to rain or water... - Off-site transportation of improved soil may be necessary... ⇒ The Harden Series offers solidification and environmental performance that is difficult to achieve with conventional cement-based solidification materials or lime-based improvement materials! Why not reconsider your solidification materials for stable treatment? 【Benefits of Harden】 ◆ Improved soil does not leach harmful substances like hexavalent chromium ◆ Improved soil is not classified as industrial waste ◆ Does not result in high pH ◆ Does not revert to a muddy state ◆ Re-excavation is easy *For more details, please download the materials or contact us directly.

  • Other civil engineering services

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Business Introduction: Improved Soil Production

Business Introduction: Improved Soil Production

Stabilization treatment using quicklime, followed by recycling. Soil that cannot be processed on-site is sent to the factory.

We are manufacturing stabilized soil using construction-generated soil treated with quicklime, making it recyclable and reusable. High-quality improved soil can be produced through a three-stage mixing process. There are two types based on particle size: Type 1 and Type 2. Soil that cannot be processed on-site is transported to the factory, where it is treated and processed for reuse. Please contact us for more details.

  • Sewerage facilities
  • Other civil engineering services
  • stone

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Nozaki Kogyo Co., Ltd. Business Introduction

Nozaki Kogyo Co., Ltd. Business Introduction

We contribute to the realization of an eco-friendly circular society through "soil recycling."

Our company collects and transports construction sludge and inorganic sludge generated from construction sites, re-resources them, and manufactures and sells them as safe, secure, and high-quality improved soil. The highly stabilized treated improved soil is less prone to liquefaction and can be used for embankments and levees. It is registered as a "prefectural product" recommended by Saitama Prefecture as construction material (backfill material). In addition, to ensure appropriate quality, we conduct internal testing (including outsourcing) and testing by public institutions, striving to comply with standards and legal rules to improve quality. 【Products】 ■ Recycled embankment material: Treated improved soil ■ Recycled backfill material: Treated improved soil Eco-Recycle Soil (20mm) ■ Gardening soil: Eco Granular Black Soil ■ Turf soil: Eco Black Soil (under 5mm) ■ Lime improved soil ■ Treated mixed improved soil *For more details, please download the PDF or feel free to contact us.

  • Other civil engineering services

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Mixed Improved Soil "Land Soil / Land Mic"

Mixed Improved Soil "Land Soil / Land Mic"

Mixed improved soil suitable for multipurpose grounds using spikes.

We handle clay-based semi-weatherproof plant-mixed improved soil "Land Soil" and sand-based semi-weatherproof plant-mixed improved soil "Land Mic." Rain construction that does not affect the subgrade is possible, and the absence of on-site mixing allows for a reduction in construction time. "Land Soil" is primarily composed of Arakida soil, which is still used as a key material in conventional methods, while "Land Mic" uses fired mountain sand as its main component, making it suitable as a base material for both natural and artificial turf. 【Features】 ■ Materials are mixed at the plant ■ Uniform particle size distribution due to plant mixing ■ Mixing materials can be selected according to preference ■ Dust generation is minimized and excellent permeability ■ Uses natural materials, etc. *For more details, please download the PDF or feel free to contact us.

  • Soil improvement material
  • Ground improvement materials

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[Quality Standards] Improved Soil "Uni-Soil"

[Quality Standards] Improved Soil "Uni-Soil"

At a material age of 24 hours, the cone index is over 800 kN/m²! It corresponds to Type 2 treated soil as indicated in the "Soil Classification Standards."

■ Cone Index (Trafficability) The figure below shows the transition of the cone index over time for the improved soil "Uni-Soil" using sludge by construction method. It can be seen that the cone index for all improved soils "Uni-Soil" exceeds 800 kN/m² at an age of 24 hours, indicating that they correspond to Type 2 treated soil as specified in the "Soil Classification Standards." This suggests that it is a high-quality civil engineering material capable of ensuring sufficient trafficability in a short period. ■ Design CBR Value The expansion ratio of the improved soil (recycled soil) "Uni-Soil" is very small, and it is considered that there is no risk of deformation or destruction of the superstructure and soil structures due to swelling. The CBR value is typically around 60%, which is very high, ensuring that the performance required for subgrade and base materials is adequately met. ■ Example of Leaching Test Results for Improved Soil "Uni-Soil" Cadmium → Below environmental standard value Hexavalent chromium → Below environmental standard value Cyanide compounds → Below environmental standard value Total mercury → Below environmental standard value Selenium → Below environmental standard value Lead → Below environmental standard value Arsenic → Below environmental standard value Fluoride → Below environmental standard value Boron → Below environmental standard value

  • Earthworks
  • Civil Engineering Method
  • Ground improvement materials

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