Calcium alumina cement lined pipe

Details Calcium alumina cement lined pipe Calcium alumina cement lined pipe

1996-08-19

1999-09-21

Krass, Frederick

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 347, 277207A, 138109, 138143, 138144, 138155, 138175, 138DIG6, 285 31, 285 55, 285230, 285231, F16L 1108

Patent

active

059551623

ABSTRACT:
Cast iron pipe and other elongated hollow articles are lined with a cementitious mortar for certain applications, such as the transmission of potable water or sewage. To improve the resistance to attack from acids and to provide a crack and holiday free cement lining, a calcium alumina cement is used to line the article. A plasticizer such as fireclay is added to the calcium alumina cement prior to its application. The cement lined article is then coated with an asphaltic based coating and then cured in a high humidity environment.

REFERENCES:
patent: 3682676 (1972-08-01), Karrh et al.
patent: 4361336 (1982-11-01), Reeh et al.
Derwent Abstract 87-000957 (01), Jan. 1987.
Chemical Abstract 70:99322, Jan. 1969.

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