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Latest update: 31/08/2021 13:22:09

LANDES Co., Ltd.

With our comprehensive, advanced technology, we give shape to the spirit of nurturing people and nature.

Our business is the development, manufacture, and sale of precast concrete products. Our ultra-durable concrete, Haresult, is a dense concrete with improved resistance to salt damage, frost damage, sulfuric acid, and their combined deterioration by using granulated blast furnace slag fine powder as part of the cement and blast furnace slag fine aggregate as the fine aggregate entirely. It is applicable to all kinds of precast products such as box culverts, slabs, utility holes, retaining walls, gutters, and others.

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Super Durable Concrete, Haresult, — Improved Resistance to Salt Damage, Frost Damage, Sulfuric Acid, and Combined Deterioration
Overview of Developed Products and Technologies
Haresult is a dense concrete with improved resistance to salt damage, frost damage, sulfuric acid, and their combined deterioration by using granulated blast furnace slag fine powder as part of the cement and blast furnace slag fine aggregate as the fine aggregate entirely. It is applicable to all kinds of precast products such as box culverts, slabs, utility holes, retaining walls, gutters, and others.
Features and Key Points
Salt damage resistance: Five times higher than ordinary concrete (Diffusion coefficient: 0.025 cm2/year)
Frost damage resistance: Five times higher than ordinary concrete (Durability index after 300 cycles of freezing and thawing tests: 100)
Sulfuric acid resistance: More than three times that of ordinary concrete (neutralization speed coefficient: 3 mm/year, %)
Low carbon: 40% less than ordinary concrete
Strength: Design strength of 50 N/mm2 or more
Resource circulation: The recycling ratio is 50%.
Main Achievements and Preferred Business Types or Industries for Matching
[Main Achievements]
・Created a highly resistant product to salt damage, frost damage, combined degradation, and sulfuric acid. As much as 53,300 tons of the product were used in six years.
・Completed patent registration for resistance to salt damage, frost damage, and sulfuric acid (registration number: 5330895), and seven other patents

[Preferred Business Types or Industries for Matching]
(1) Companies willing to cooperate in the manufacture and sale of Haresult products
(2) Companies wishing to purchase durable concrete products
(3) Companies that want to sell blast-furnace slag fine aggregate for durable concrete

This company is recommended by the following support organizations.

国立研究開発法人新エネルギー・産業技術総合開発機構(NEDO)
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