Process for placing concrete through high head

Details Process for placing concrete through high head Process for placing concrete through high head

1979-10-31

1982-03-23

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Forming structural installations in situ

Arched, domed, or vertical-cylindrical structure

264333, E04B 116

Patent

active

043212239

ABSTRACT:
A process for placing concrete in very deep vertical shafts or the like, by evacuating a substantially vertically disposed flexible hose and then intermittently feeding concrete material through the hose while keeping the hose airtight from the top thereof, so as to avoid separation of concrete ingredients during travelling through a high head.

REFERENCES:
patent: 2414310 (1947-01-01), Laird
patent: 3492395 (1970-01-01), Breitfuss
patent: 3619431 (1971-11-01), Weaver

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