Project Records

Main Construction Examples

Prevention of Deterioration and Contamination of Natural Stone Exterior Walls



Processed at Hydrosarm (now Hydro Earth) in February 1989
Nippon Fire Insurance Co., Ltd. Yokohama Building

Construction: Kumagai Gumi Co., Ltd. and other joint ventures

Location: Bashamichi, Yokohama City

Design: Nikken Sekkei Ltd.

The first image shows the condition before treatment.
The second image shows the condition after treatment.


For Stonework

  • 1989: National Diet Building, bookstore spire
    Large-scale ceramic tile waterproofing project
  • 1989: Tokyo Patent Office Building

    Anti-stain back treatment for new granite construction

For Stonework

  • 1989: National Diet Building, bookstore spire
    Large-scale ceramic tile waterproofing project
  • 1989: Tokyo Patent Office Building

    Anti-stain back treatment for new granite construction

Applications for Brickwork

  • 1985: Osaka, Namba Subway Station
    Tile joint waterproofing and anti-corrosion treatment
  • 1989: Tokyo Station, JR Museum
    Waterproofing and moisture-proofing treatment for the 80-year-old brick exterior wall
  • 1989: Tokyo Station, JR Museum

    Waterproofing and moisture-proofing treatment for the 80-year-old brick exterior wall

Applications for Brickwork

  • 1985: Osaka, Namba Subway Station
    Tile joint waterproofing and anti-corrosion treatment
  • 1989: Tokyo Station, JR Museum
    Waterproofing and moisture-proofing treatment for the 80-year-old brick exterior wall
  • 1989: Tokyo Station, JR Museum

    Waterproofing and moisture-proofing treatment for the 80-year-old brick exterior wall

For Civil Engineering Projects

  • 1985: Tokaido Shinkansen
    JR Shinkansen Ryo Bridge Deck and Viaduct Renovation Project
  • 1987: Metropolitan Expressway Yokohane Line
    Koebashi Bridge Deck Waterproofing Project

For Civil Engineering Projects

  • 1985: Tokaido Shinkansen
    JR Shinkansen Ryo Bridge Deck and Viaduct Renovation Project
  • 1987: Metropolitan Expressway Yokohane Line
    Koebashi Bridge Deck Waterproofing Projec
    t

For Precast Concrete

  • 1990: Tokyo, Takebashi, Palace Side Building
    PC exterior refurbishment and anti-deterioration project
  • 1990: Tokyo, Ikebukuro, Tokyo Metropolitan Theatre
    Efflorescence prevention and anti-deterioration treatment for exterior and interior walls

For Precast Concrete

  • 1990: Tokyo, Takebashi, Palace Side Building
    PC exterior refurbishment and anti-deterioration project
  • 1990: Tokyo, Ikebukuro, Tokyo Metropolitan Theatre
    Efflorescence prevention and anti-deterioration treatment for exterior and interior walls

For Plaster (Shikkui)


  • 1991: Himeji Castle (National Treasure)

    Anti-mold treatment for plaster walls

For Plaster (Shikkui)


  • 1991: Himeji Castle (National Treasure)

    Anti-mold treatment for plaster walls

Construction Achievements

– For Stonework

  • 1989 National Diet Building – Waterproofing of large ceramic tiles on the spire
  • 1989 Tokyo Patent Office Building – Backside treatment to prevent discoloration of new granite

– Application to Brickwork

  • 1985 Osaka / Namba Subway Station – Tile joint waterproofing and efflorescence prevention
  • 1989 Tokyo Station & JR Museum (80-year-old building) – Waterproofing and moisture-proofing of brick exterior walls, application to tiles
  • 1985 Tokaido Shinkansen – Floor slab and elevated bridge repair work on JR Shinkansen viaduct
  • 1987 Metropolitan Expressway (Yokohama Line) – Waterproofing of floor slabs on elevated bridges
  • 1990 Palace Site Building, Takebashi, Tokyo – PC exterior wall refresh and deterioration prevention work
  • 1990 Tokyo Art Theater, Ikebukuro, Tokyo – Efflorescence and deterioration prevention for exterior and interior walls
  • 1991 Himeji Castle (National Treasure) – Anti-mold treatment of plaster walls

– Floor Coating Work

  • Haneda Airport Yamato Collection Center
  • Grand Nikko Tokyo Daiba
  • Hotel Okura Guam
  • Yokohama Bay Sheraton Hotel
  • Disney Ambassador Hotel
  • Tokyo DisneySea Hotel MiraCosta
  • Universal Studios (Restaurant)
  • Nishi-Shinjuku Mitsui Building
  • Meiji Life Insurance Saitama Shintoshin Building
  • Tokyo Twin Parks, Shiodome
  • Shin Marunouchi Building
  • POLA Hakone Art Museum
  • Daito Trust Construction Headquarters Building
  • Mitsubishi Corporation Headquarters Building
  • Mitsubishi Motors Headquarters Building
  • Nippon Television Headquarters
  • Shinjuku Orix Building
  • Nippon Life Hibiya Building
  • Unimat Minami-Aoyama Building
  • Cartier Ginza Building
  • Prada Ginza Building
  • MUFG Bank Nagoya Building (former Tokai Bank Headquarters)
  • Kobe Yusen Building
  • Prada and Gucci (Floor granite for each store)

– Exterior Wall Coating

  • Meguro Police Station
  • Takanawa Police Station
  • Bank of Japan, Otaru Branch
  • Naha Defense Agency Warehouse
  • Hiroshima National Peace Memorial Park for Atomic Bomb Victims
  • Embassy of Spain
  • Chanel Ginza Building

– Brick Exterior Wall Projects

  • Rikkyo University Chapel
  • Kyushu Electric Power Second Power Plant

– Interior Wall Coating

  • Sasago Tunnel Ventilation Station
  • Akana Tunnel Repair