大和クレス List of Products and Services

"Evalute" is a modular staircase for ascending and descending that can be retrofitted to the walls of retaining walls, embankments, or waterways. By assembling a dedicated bracket anchored on-site and resin concrete panels (Dreck staircase panels), stairs can be easily installed. The structure is lightweight and durable, resistant to corrosion, thanks to high-strength resin concrete panels and brackets made of galvanized steel. 【Features】 ■ Can be retrofitted to existing vertical walls or sloped retaining walls ■ Lightweight and easy to handle, making installation simple ■ Available in stair widths of 630mm, 800mm, 1000mm, and 1500mm ■ Fall prevention fences can be installed (with dedicated brackets), ensuring safe passage ■ The walking surface (panel surface) is designed with anti-slip protrusions for safe ascent and descent *For more details, please refer to the PDF document or feel free to contact us.

• Concrete Retaining Wall
• Retaining wall
• Other civil engineering works

This product is a precast bottom drain pipe that significantly shortens construction time compared to on-site structures using Hume pipes, allowing for minimal duration of temporary drainage work and excavation. Thanks to the complete waterproofing method, there is no leakage even under an internal water pressure of 0.10 MPa (0.10 N/mm²). 【Features】 ■ Significant reduction in construction time ■ Complete waterproofing method ■ Flexible joint structure at product connection points ■ Capable of accommodating flexible structural designs ■ Can handle high embankments due to its arch shape ■ Nationwide support available *For more details, please refer to the PDF document or feel free to contact us.

• Other civil engineering works

The "Slim Side Ditch" reduces the exposed width of concrete compared to traditional free gradient ditches (variable gradient ditches) from 150mm to 100mm, making the road feel wider. By incorporating surface slits, it enhances drainage functionality. The top surface of the ditch is paved with permeable material, preventing water accumulation. This design allows for comfortable passage, especially on roads with dedicated bicycle lanes, without concerns about shoulder slope or slipping. 【Features】 ■ Ensures flatness ■ Provides ample space for bicycles and pedestrians ■ Slip-resistant structure ■ Eliminates steps and grooves ■ Nationwide compatibility *For more details, please refer to the PDF materials or feel free to contact us.

• Gutters and U-shaped gutters

The "Tunnel L-Walk" for tunnel monitoring staff passageway is a precast retaining wall installed to ensure the safety of workers engaged in maintenance and management. In addition to shortening construction time, ensuring high quality, and providing a beautiful finish, the base slab is constructed on-site, allowing for flexibility in on-site casting. The design takes into account vehicle collision loads (H=900: 22kN/m, H=1000: 20kN/m), providing solid protection for workers and pipelines at the back. 【Features】 - Drainage holes are formed between blocks, allowing for drainage to the front side. - Precasting enables simultaneous construction and combinations of processes, leading to reduced construction time. - The omission of drainage ditches allows for further time savings. - The need for rebar and formwork can be eliminated, enabling labor-saving construction. - Nationwide support is available. *For more details, please refer to the PDF document or feel free to contact us.*

• Tunnel Materials
• Tunnel construction
• Retaining wall

"Eldrain" is an L-shaped block for tunnel monitoring passageways on highways and expressways, which enables significant shortening of construction time by integrally molding the side wall section of the tunnel monitoring passageway and the circular waterway. The blocks can be connected with bolts. Additionally, by installing the lower part of the drainage pit in advance, smooth construction can be achieved. In this case, the structure can absorb construction variations of up to 5 cm in the position of the drainage pit. 【Features】 ■ No need for side wall curing, allowing immediate progression to the next task after block installation ■ Can be connected with bolts ■ Equipped with embedded holes for support posts, making it easy to install handrails ■ Structure minimizes the likelihood of debris getting caught in the slits ■ The circular waterway section considers T-25 direct and side loads in the longitudinal direction ■ Nationwide support available *For more details, please refer to the PDF document or feel free to contact us.

• Tunnel Materials
• Tunnel construction
• Various blocks

The cantilever sidewalk "Aplon II," used for widening sidewalks and bicycle paths, is a functional precast cantilever sidewalk with an integrated retaining wall function, featuring a streamlined design. It allows for easy assurance of safety for pedestrians and cyclists, and requires no maintenance after installation. Additionally, the use of precast foundations enables a completely dry construction method. 【Features】 ■ A structure that integrates vertical and horizontal directions ■ Effectively prevents falls and sliding, resulting in an economically stable structure ■ A 2.0% slope on the sidewalk section, along with drainage holes and joint holes in the side walls, ensures good drainage and minimizes water accumulation behind the side walls ■ Quick installation leads to cost savings ■ Can be backfilled immediately, allowing for early reopening of road traffic restrictions ■ Nationwide support available *For more details, please refer to the PDF materials or feel free to contact us.

• Civil Engineering Method

"Evalute" is a prefabricated stair system that can be installed retroactively on the walls of retaining walls, riverbanks, and waterways. By assembling a dedicated bracket anchored on-site and resin concrete panels (Dreck stair panels), stairs can be easily installed. The structure is lightweight and durable, resistant to corrosion, thanks to high-strength resin concrete panels and brackets made of galvanized steel. 【Features】 ■ Can be retrofitted to existing vertical walls and sloped retaining walls ■ Lightweight and easy to handle, allowing for simple installation ■ Available in stair widths of 630mm, 800mm, 1000mm, and 1500mm ■ Safety fences can be installed (by setting up dedicated brackets) for safe passage ■ The walking surface (panel surface) is designed with anti-slip protrusions for safe ascent and descent ■ Optional installation of LED guiding markers for nighttime evacuation *For more details, please refer to the PDF document or feel free to contact us.

• Concrete Retaining Wall
• Retaining wall
• Other civil engineering works

The inverted trapezoidal vertical retaining wall "Polamess" is a hybrid structure with excellent drainage properties that can reduce the amount of excavation and backfill of the rear earth compared to reinforced soil walls and L-shaped retaining walls, even in steep terrain. Constructed with porous concrete blocks and an L-shaped welded wire mesh laid at the back, this vertical retaining wall can be built up to a maximum height of 8 meters using crushed stone as infill material. 【Features】 ■ Use of recycled materials such as crushed stone or concrete as infill material is possible. ■ Reduces excavation and backfill amounts of the rear earth compared to reinforced soil walls and L-shaped retaining walls. ■ Lightweight components make transportation and assembly easy. ■ Can be constructed in locations where large construction machinery cannot move. ■ Easy to construct curves with standard components, resulting in excellent shape. *For more details, please refer to the PDF document or feel free to contact us.

• Concrete Retaining Wall
• Retaining wall

"Castle Wall" is a flexible retaining wall that can be freely stacked to match the terrain. It exhibits good adaptability to relatively small ground reaction forces and can follow differential settlement of the foundation ground and backfill soil, maintaining the overall stability of the wall. Curved construction is easily achievable, and right-angle bends and end treatments of the wall body can also be easily performed. It is also easy to construct with longitudinal slopes and can be built as an underwater retaining wall. 【Features】 ■ Structure rich in flexibility ■ High drainage capacity ■ Cost reduction and reduction of construction-related nuisances ■ Easy curved construction and end treatment ■ Consideration for the environment and landscape with diverse functions *For more details, please refer to the PDF materials or feel free to contact us.

• Concrete Retaining Wall
• Retaining wall

This is a standard product of the National Box Culvert Association, as described in the "Guidelines for Road Earthworks and Culvert Construction" by the Japan Road Association and the "Guidelines for Buried Precast Box Culvert Roads" by the National Institute for Land and Infrastructure Management, and it is certified as Class II by the Japan Sewage Works Association.

• Ready-mix concrete
• Bridge Construction
• Airport facilities

This is a notice about "Bench Flume" from Yamato Kuresu Co., Ltd. JIS A 5372 Appendix 6 Recommended Specification 6-1

• Ready-mix concrete

It can be widely used for mainline water channels and is compatible with channel widths of approximately 3 meters, allowing for the installation of rescue ladders to save lives, as well as the addition of slits to incorporate fish nesting functions, demonstrating consideration for the environment. If there is a risk of buoyancy in the channel due to groundwater influence, appropriate measures must be taken separately to address buoyancy.

• Ready-mix concrete

This is a notice from Yamato Kuresu Co., Ltd. regarding the "drop lid type U-shaped drainage ditch."

• Gutters and U-shaped gutters
• Secondary paving products

This is a product with a sturdy gate-type frame structure that can withstand the passage of large vehicles, offering an economical and rational roadside ditch with a wide variety of types and specifications.

• Ready-mix concrete
• Gutters and U-shaped gutters
• Dam construction

By directly laying it on earth embankments and similar surfaces, construction efficiency is significantly improved. This groundbreaking new method demonstrates excellent functionality in preventing soil surface erosion with a short construction period and low cost.

• Temporary Construction Materials