FOAMING ADDITIVE FOR SOIL CONDITIONING IN THE PRESENCE OF MECHANISED EXCAVATION FOR TUNNEL CONSTRUCTION

Disclosed is a liquid foaming additive for use in mechanised excavation by a tunnel boring machine, containing 5-40 pcnt by weight of one or more surfactants, 0.01-5 pcnt by weight of one or more biopolymers, and 55-94.09 pcnt of water.

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Bibliographische Detailangaben
Hauptverfasser:	PEILA, Daniele, PISTOLESI, Carlo, DAL NEGRO, Enrico, MALTESE, Cristiano, SQUINZI, Marco, STEFANONI, Massimo
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SHAFTS TUNNELS
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Beschreibung
Zusammenfassung:	Disclosed is a liquid foaming additive for use in mechanised excavation by a tunnel boring machine, containing 5-40 pcnt by weight of one or more surfactants, 0.01-5 pcnt by weight of one or more biopolymers, and 55-94.09 pcnt of water.