With this maintenance method, the existing road surface is fully resurfaced with a heated asphalt mixture in order to restore the surface of roads with a relatively low volume of heavy-vehicle traffic.

MARRON ASPHALT is a generic term for asphalt mixtures that have been colorized with a red-earth pigment, which imparts a maroon (chestnut) color. Mixtures with MARRON in the name include Marron Guss (Gussasphalt), Marron Dick (thin layer), Marron Porous (permeable), and Marron Cork (elastic).

This construction method uses polystyrol blocks stacked on top of each other as alternative embankments.

This is a construction method for mixing and stabilizing the shallow layer of the ground (up to 1.5 meters deep) with a multi-mixer or bucket mixer while adding a solidifier to soft ground.

This is a road base material which is made using a highly rigid asphalt mixture. Because the rigidity is much greater than that of ordinary road base, the load on the existing subbase is reduced, the asphalt pavement can be rendered more durable, and its service life can be extended.

This is a construction method that stabilizes the existing subgrade soil by adding and mixing cement and lime in situ. The finished thickness of one layer is 30 to 100 cm.

This is a construction method that stabilizes the existing road base by adding and mixing cement and lime in situ. The finished thickness of one layer is 10 to 30 cm.

A high-performance solar reflective coating that reflects more than 90% of rays in the near-infrared region. It can be used to inhibit increases in temperature inside buildings to help reduce cooling costs, ameliorate hot environments, and protect the quality of materials stored in warehouses.

This construction method involves building a composite rigid layer on the subgrade using a high-strength geo-grid and restraining members. It prevents the pavement from collapsing due to an earthquake and inhibits the formation of cracks and bumps in the asphalt pavement road surface. This allows emergency vehicles to travel on the road immediately after an earthquake, thereby helping to accelerate the initial response to any urgent call to save lives and transport supplies.

This is the road bridge slab waterproofing method that can be expected to provide exceptional waterproofing and reinforcement effects through the combined use of a highly permeable waterproofing material that deeply penetrates into and adheres to penetrating cracks and fine cracks in concrete slabs and an asphalt-heated coating for the waterproofing material. Because application and curing times are short, this method is suitable for repairing bridge surface pavements where time constraints apply.