NAV-G Method (UV Specification)

Preventive measures against flaking that are visible on the concrete surface, such as cracks, even after repairs.

last updated Feb 20, 2019

Pre-stressed Concrete Method

Overcoming the weaknesses of concrete! Copper material, which has 5 to 6 times the strength of rebar, secures the concrete.

last updated Feb 20, 2019

Oriental Shiraishi Factory Guide

Promote thorough standardization and quality management, and obtain ISO 9001 and 14001 certification!

last updated Feb 27, 2019

Floating pier

Excellent stability and improved convenience! It is also possible to construct large floating structures by connecting with PC steel materials.

last updated Mar 22, 2019

High Corrosion-Resistant Steel Inspection Route 'JB-HABIS'

Safety confirmed through testing in accordance with NEXCO testing methods! Inspection road for bridges by Nihon Koryo Co., Ltd.

last updated Jun 27, 2019

Transparent concrete coating "NAV-G Method (UV specification)"

After finishing the painting, maintain a transparent state. In other words, it's a concrete coating that allows cracks and other imperfections on the concrete surface to be clearly visible even after repairs!

last updated Jul 23, 2019

SCBR method for replacing hollow slab bridges using upper and lower precast methods.

A new connection structure for pretensioned PC girders! Ideal for replacing cast-in-place hollow slabs. Updating while utilizing existing piers. Of course, it's also suitable for new bridge construction!

last updated Jun 07, 2023