Nichireki Co., Ltd.

Obayashi Corporation

Toho Natural Gas Company, Limited

Akira Ito

Hiroyuki Ishii

Tsuyoshi Aoyama

Yoshimasa Hayashi

Hitofusa Mitani

Kazuhiko Shichiku

Kiyoshige Nishibayashi

Haruka Ogawa

Tadashi Nouchi

An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofing, and filling buildings and structure for engineering works, said waterproofing composition coagulates instantaneously to form a stable yet firm waterproofing layer. This rubber modified asphalt type of waterproofing composition comprises a cationic rubber modified asphalt emulsion and an organic coagulating agent.

Rubber modified asphalt type of water-proofing compositions

Rubber modified asphalt type of water-proofing composition

The invention relates to a reinforcing material suitable for repairing cavities in the ground surrounding an underdrain through which sewers are laid down, and provides a bituminous reinforcing material for grouting excellent in workability and durability. The two-liquid bituminous reinforcing material comprises a liquid A that is obtained by mixing together an asphalt emulsion, a hydraulic inorganic material, a reactive type of water-soluble resin, and water, and a liquid B that is obtained by mixing together an asphalt emulsion, a hydraulic inorganic material, a polymerization catalyst, and water.

Bituminous reinforcing material for grouting

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Tochigi, Japan

Akira Ito