PROPERTIES OF HARDENED MATERIALS IN NEW SHOTCRETE WITH TWO-STAGE MIXING

Takashi ITO; Osamu OCHI; Mitsuhiro SUENAGA; Yuji ITO; Tadaaki TAMURA

doi:10.11532/journalte1991.10.141

PROCEEDINGS OF TUNNEL ENGINEERING, JSCE

Online ISSN : 1884-9091
ISSN-L : 1345-0832

PROPERTIES OF HARDENED MATERIALS IN NEW SHOTCRETE WITH TWO-STAGE MIXING

Takashi ITO, Osamu OCHI, Mitsuhiro SUENAGA, Yuji ITO, Tadaaki TAMURA

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Keywords: tunnel, NATM, new shotcrete, two-stage mixing, hardened materials

JOURNAL FREE ACCESS

2000 Volume 10 Pages 141-144

DOI https://doi.org/10.11532/journalte1991.10.141

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Abstract

Japan Railway Construction Public Corporation applies the new shotcrete to many tunnels, whitch is using limestone powder and silica fume with two-stage mixing.The authors investigated the material, efficiency, and strength etc. of the new shotcrete at the construction site. This report describes the properties of hardened materiales in new shotcrete based on efficiency and strength of new shotcrete at the construction site.

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