Method of preparing cementitious compositions for tunnel backfil

Details Method of preparing cementitious compositions for tunnel backfil Method of preparing cementitious compositions for tunnel backfil

1981-10-06

1983-12-06

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 90, 106 97, 106 98, C04B 735

Patent

active

044191359

ABSTRACT:
A cementitious composition for backfilling and sealing tunnels and other underground structures comprising 12-16 parts sand, 3-6 parts cement, 1.5-3 parts water, 0.1-0.5 parts plasticizer and 0.02-0.04 parts of a pituitous water soluble polyethylene oxide thickening agent.

REFERENCES:
patent: 3955992 (1976-05-01), Roberts
patent: 3972723 (1976-08-01), Balle et al.
patent: 3997502 (1976-12-01), Schaupp

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