PROPERTIES OF HIGH-STRENGTH SHOTCRETE INCORPORATING SILICA FUME AND AN APPLICATION FOR TUNNEL LINING
نویسندگان
چکیده
منابع مشابه
Influence of the Tunnel Shape on Shotcrete Lining Stresses
Tunnel excavation is frequently carried out in rock masses by the drill and blast method and the final shape of the tunnel boundary can be irregular due to overbreaks. In order to investigate the effects of overbreaks a study of the effect of tunnel boundary irregularity has been carried out. This is done developing a computational tool able to take into account fuzzy variables (i.e., thickness...
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Improving the workability and strength of silica fume concrete by using silane-treated silica fume
Mortar with high workability even without a water-reducing agent and with high tensile and compressive strengths (3.1 and 78 MPa, respectively) was obtained by using as an admixture silica fume that had been surface treated with a silane coupling agent. The treatment enhanced the wettability of silica fume by water, thereby increasing the workability of the mortar mix. It also enhanced the bond...
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ژورنال
عنوان ژورنال: Doboku Gakkai Ronbunshu
سال: 1996
ISSN: 0289-7806,1882-7187
DOI: 10.2208/jscej.1996.550_173