ランデス List of Products and Services

The simple cantilever road widening method "Road Plus" allows for a maximum road widening of 1.75 meters in a short period by installing it on the shoulders of existing roads. It enables relatively easy and economical road widening by installing cantilever road blocks without the need for large-scale reconstruction of retaining walls. Additionally, it has been registered as a post-evaluation technology "VE" in the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system NETIS. 【Features】 ■ Reduced impact on the environment on both the mountain and valley sides ■ Early traffic opening ■ Cost reduction possible ■ Compatible with vehicle protective fences ■ Road widening tailored to regional characteristics *For more details, please refer to the PDF materials or feel free to contact us.

• Road construction

This is a dense concrete that effectively utilizes blast furnace slag (a byproduct discharged from steel mills). It uses fine powder of blast furnace slag, a byproduct produced from steel mills, as part of the cement, and employs 100% blast furnace slag fine aggregate as fine aggregate, resulting in ultra-durable and ultra-long-lasting concrete with improved resistance to salt damage, freeze-thaw cycles, and sulfuric acid. 【Features】 ■ Salt damage resistance: over 5 times ■ Low carbon: over 35% reduction ■ Freeze-thaw resistance: over 1,200 cycles ■ Sulfuric acid resistance: over 3 times ■ High strength: over 50 N/mm² ■ Resource recycling: 50% slag usage rate *For more details, please refer to the PDF document or feel free to contact us.

• Gutters and U-shaped gutters

Hareisalt is a long-lasting concrete that improves resistance to salt damage, freeze-thaw damage, and sulfuric acid damage by using high furnace slag fine powder as part of the cement and 100% high furnace slag fine aggregate as fine aggregate. 1. Salt damage resistance: Prevents the intrusion of chloride ions due to its dense and high-strength material. 2. Freeze-thaw resistance: Exhibits high resistance to freeze-thaw cycles due to its dense and high-strength material. 3. Composite deterioration: Maintains structural strength even in environments where salt and freeze damage occur simultaneously. 4. Sulfuric acid resistance: Reacts with sulfuric acid to form a strong surface film with high erosion resistance. 5. Low carbon: Reduces CO2 emissions by approximately 35% due to the extensive use of high furnace slag. 6. Resource recycling: Uses about 50% high furnace slag as raw material. NETIS CG-110006-VE Hareisalt Box Culvert CG-130006-VE Hareisalt Projecting Sidewalk CG-130019-A Hareisalt Rigid Protective Fence CG-200018-A Hareisalt L-shaped Retaining Wall Technologies with expired NETIS listing CG-120041-A Hareisalt Free Slope Ditch and 3 other technologies ● For other functions and details, please contact us.

• Gutters and U-shaped gutters

○NETIS: SK-100002-A With the revision of the Road Structure Ordinance in July 2003, the development of 1.5-lane roads has been adopted, and the demand for small-scale road widening in narrow sections has increased. Road Plus can facilitate the widening of narrow roads in mountainous areas and those that are difficult to construct due to the influence of rivers and other factors.

• Protective fence
• Airport facilities
• Temporary Construction

It is a cantilever beam structure that supports the bed plate at the foundation, allowing for the installation of sidewalks with minimal land use in urban areas and without obstructing the flow cross-section along rivers and waterways. The construction is quick, which helps reduce traffic restrictions due to the work.

• Dam construction
• Airport facilities

The cantilever sidewalk, designed with an inverted T-shaped base, offers high stability and allows for construction with minimal scaffolding or supports, enabling a reduction in construction time and minimizing traffic restrictions due to the work.

• Scaffolding and Support Materials
• Dam construction
• Retaining wall

This construction method for direct stacked retaining walls is optimal for steep slopes, using small-sized eco boxes (large blocks) in the lower section and stacking larger-sized products as you go up. The excavation width is minimized, reducing the amount of excavation and backfill soil.

• Dam construction
• Retaining wall

○NETIS: SK-060003-V "Standard Specifications for Vehicle Protection Fences and Explanations" and "Guidelines for Road Earthworks - Retaining Wall Works" compliant independent protection fence foundation. It is a precast product, and by installing it on top of precast retaining walls, significant reductions in construction time can be expected.

• Protective fence
• Retaining wall
• Concrete Machinery

Since it is a gate-type drainage structure without an opening, there is no rattling noise, and in addition to improving surface drainage through slits, it also evenly discharges infiltrated water from the side edges in road drainage pavement. The top surface of the drainage channel is finished with a non-slip treatment.

• Dam construction
• Paving of sidewalks, roads, parking lots and stadiums
• Pavement construction

This is a road gutter compatible with T-25 wheel loads, featuring smooth surface drainage through slits and high drainage capacity due to its oval cross-section. Its oval shape allows for high water flow capacity, and sediment accumulation at the bottom of the gutter is minimized.

• Gutters and U-shaped gutters
• Secondary paving products

This is a road gutter with an egg-shaped cross-section that can handle T-25 wheel loads, allowing for smooth surface water collection through slit drainage and possessing a drainage capacity of 100mm or 150mm or more in circular water paths. Since grating is not required, cost reduction is possible.

• Gutters and U-shaped gutters
• Grating
• Dam construction

○NETIS: TH-990073-V The retaining wall height is standardized from 1000 to 4000 mm, allowing for the construction of an optimal retaining wall cross-section by combining various blocks, making it very economical. Additionally, recycled materials such as construction waste soil can be used as backfill, significantly reducing the environmental impact on the surrounding area.

• Dam construction
• Retaining wall
• Planting work

This is a segmented precast box culvert designed to alleviate limitations due to size and weight arising from the increase in product size.

• Foundation construction
• Dam construction
• Concrete Machinery

○NETIS: SK-090019-A Precast box culverts can be manufactured to match any intersection angle where rivers and roads or roads and roads intersect in three dimensions, making it difficult to approach directly. This technology allows for installation according to the effective width, enabling construction to be completed quickly with the shortest extension.

• Foundation construction
• Dam construction
• Airport facilities

○NETIS: KT-990571-V This is a method for installing box culverts by lowering them from a designated entrance and pulling them along the rails using bearings (steel balls) and a winch or mobile machinery. It can be installed even in locations with obstacles or in narrow spaces.

• Dam construction
• Crane and others
• Concrete Machinery

○NETIS: CB-980117-V By assembling the arch members alternately from left to right, a three-point hinge structure arch construction is built. It is a flexible and stable structure where relatively thin members form the arch in conjunction with the embankment.

• Bridge Construction
• Dam construction
• Crane and others

This is a technique for constructing the superstructure by covering the upper part of steel pipes and steel sheet piles used for coastal protection, such as in harbors, with precast blocks and pouring cast-in-place concrete inside.

• Concrete sheet piles and piles
• Coastal construction
• Harbor Construction

New Free Slab is a simple slab bridge designed to accommodate various automobile loads.

• Dam construction
• Paving of sidewalks, roads, parking lots and stadiums
• Pavement construction

○NETIS: CB-100059-A Most of the material is composed of by-products from steelmaking, and it hardly uses cement, which emits a large amount of carbon dioxide during the conventional manufacturing process. Although it is limited to unreinforced structures, it can reduce CO2 emissions by approximately 43%.

• Airport facilities
• River construction

○NETIS: CG-990009-V This is a small animal protection ditch designed with a slope to allow turtles and frogs that have fallen into ditches or waterways to easily escape on their own.

• Gutters and U-shaped gutters
• Dam construction

○NETIS: CG-000006-V A gentle slope revetment is constructed by pouring crushed stone into a concrete frame. Compared to wire mesh equivalents such as wire cage revetment methods, it offers better workability, leading to reduced construction time and labor savings, making it economical. Additionally, vegetation recovery can be achieved through the use of locally generated soil as cover soil.

• Airport facilities
• River construction
• Rock drills, demolition machines, and excavators

This is a large connected sheet block measuring 1m² per unit. The surface of the block has a faux rock pattern, allowing it to blend more naturally compared to regular sheet blocks, and the appropriate gaps can also promote the recovery of vegetation. There is also a step type available for use as a water-friendly bank.

• Tensioning and connecting blocks
• Airport facilities
• River construction

1. It has superior durability compared to steel frame foundations. 2. It also has a weed suppression effect, keeping maintenance costs low. 3. It accommodates various module dimensions and is easy to install. 4. It can be installed on flat land, fallow land, slopes, and flat roofs with only leveling, without the need for foundation work. 5. The installation angle of the modules can be adjusted as desired for each property.

• Steel structure construction
• Foundation construction
• Roof and gutter construction