Fill, covering material and embedding material incorporating a h

Details Fill, covering material and embedding material incorporating a h Fill, covering material and embedding material incorporating a h

1987-02-03

1988-03-15

Capella, Steven

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 88, 106900, 106DIG1, C04B 1830, C04B 1806

Patent

active

047311207

ABSTRACT:
The fill according to the invention comprises a mixture of 1-30% by weight cement with 99-70% by weight of various waste material, fly-ash, de-sulphurization product or granulated blast-furnace slag. The mixture can be used dry or mixed with water, and may also be mixed with air to form small bubbles, thereby rendering the mixture frost resistant. The fill can be used to fill different cavities and pits, such as pipe-laying and cable-laying trenches, floor cavities and holes in streets and roads, and for covering mounds of waste, rubbish dumps and for encapsulating harmful waste. When filling pipe-laying and cable-laying trenches, the intermediate layer of sand, and will thereby prevent water from entering into or leaking from the pipes, while at the same time holding the pipes in position and affording a stabilizing effect against ground movement. The fill hardens to a maximum strength of 10-15 MPa after one or more years, but retains sufficient softness to enable it to be dug-up without difficulty, this hardness becoming a maximum of 10-15 MPa after one or more years.

REFERENCES:
patent: 4134774 (1979-01-01), Heese et al.
patent: 4210457 (1980-07-01), Dodson et al.
patent: 4354876 (1982-10-01), Webster
patent: 4374672 (1983-02-01), Funston et al.

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