Process for making a hardening agent for weak soil or sludge fro

Details Process for making a hardening agent for weak soil or sludge fro Process for making a hardening agent for weak soil or sludge fro

1985-11-20

1987-03-24

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

75 24, 75 25, B22F 100

Patent

active

046523103

ABSTRACT:
A process for making a hardening agent for weak soil or sludge from steelmaking slag. About 5-30 wt. % of specified reforming agent selected from the group consisting of one or more of silicate rock, mineral, calamine, glass waste, foundry waste sand, waste brick, red mud, volcanic slag, iron oxide and mixtures thereof is added to a molten steelmaking slag, causing a reaction forming a reacted steelmaking slag. The reacted steelmaking slag is then rapidly cooled to form a powder. Iron is then removed from the powder and the powder is then mixed with from about 3-5% of a powder selected from the group consisting of one or more of lime, plaster and cement to form a hardening agent for weak soil or sludge.

REFERENCES:
patent: 3849117 (1974-11-01), Philpotts
patent: 4062672 (1977-12-01), Kunicki
patent: 4141722 (1979-02-01), Takai
patent: 4179279 (1979-12-01), Harada

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