SSP construction method

Improving the seismic performance of pile bent piers! It is economically advantageous as large-scale temporary structures are not required.

last updated Mar 22, 2019

Pier Relief Method (Bending Reinforcement Specification)

We will improve seismic performance! A bending reinforcement method that can be implemented even under conditions where excavation is not possible.

last updated Mar 22, 2019

RSP lift-up construction method

Construction is possible even in narrow spaces such as under railway viaducts! Steel plate wrapping vertical reinforcement method using lifting.

last updated Mar 22, 2019

STEP method

In cases of strict restrictions on airspace! Construction methods with fewer constraints such as underfloor space and machinery.

last updated Jul 23, 2019

SLJ Slab - For Port Piers

Widely adopted for precast slabs of highway bridges that require fatigue durability under harsh conditions!

last updated Mar 22, 2019

NAPP anchor method

Using hollow PC steel rods! Introducing prestress to connect existing and new concrete.

last updated Mar 20, 2019

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

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

Grout Re-injection Method for PC Structures 'PC-Rev Method'

Re-inject grout to improve the durability of structures! Accurate injection management with high-precision cavity volume understanding!

last updated Jul 23, 2019

Waterway tunnel reinforcement method (strand sheet)

The definitive version of reinforcement for the inner surface of water channels. This is a reinforcement method that adheres strand sheets using resin materials applicable to concrete water channels in harsh wet environments.

last updated Feb 07, 2022

Precast PC floor slab "CFCC Slab"

Precast PC slabs using carbon fiber composite material cables (CFCC).

last updated Jun 27, 2019

SP clamp method: Replacement method for PC composite girders with precast PC slabs.

Replace the PC composite girder's floor slab with a precast PC floor slab. Quick construction! The reliability of ensuring durability performance will improve!

last updated May 10, 2023

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

Estimation method for residual prestress using core cutting.

For the maintenance and management of existing PC structures! It eliminates the effects of drying shrinkage and creep strain.

last updated Mar 22, 2019

ORS External Frame Method

We will protect the precious lives and property of the residents and bring new vitality to the building.

last updated Feb 27, 2019

Precast technology / On-site cast prestressed concrete technology

We can provide concrete structures with excellent vibration resistance and durability! Introducing our PC technology.

last updated Feb 27, 2019

PCR method for road use

Construct cross-structures safely and reliably without excavation! It minimizes deformation and suppresses subsidence of the upper pavement.

last updated Mar 22, 2019

Health Care Sheet "Lightweight Thermal Eco Sheet Double"

30% weight reduction! Insulation performance is equivalent to that of conventional insulation eco sheets!

last updated Oct 08, 2021

Wall guard protection sheet

Adoption of thin, highly foamed insulation material in a three-layer structure! A concrete curing product that does not require an anti-scattering net.

last updated Oct 08, 2021

Salt penetration resistant non-shrink mortar "Pacific Preurox AS"

The densification can be achieved by the action of special admixtures such as aluminosilicate-based admixtures!

last updated Oct 08, 2021

IH (Induction Heating) Device System

Introduction to IH-type coating removal using IH (induction heating) device systems.

last updated Jan 23, 2020

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

Oriental Shiraishi Factory Guide

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

last updated Feb 27, 2019

PC pier

Reduce the number of steel pipe piles using precast PC girders! Proposing further cost reductions as well.

last updated Mar 22, 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

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 Technology Introduction

Repair, reinforcement, and renewal! We contribute to society through a diverse range of technological development and practice.

last updated Feb 20, 2019