Lightweight concrete roof tiles

Details Lightweight concrete roof tiles Lightweight concrete roof tiles

1985-01-09

1987-06-16

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 97, 106314, C04B 702

Patent

active

046736590

ABSTRACT:
Lightweight concrete roof tiles are produced by extruding a cement/lightweight aggregate/water mix containing a non-thixotropic silica fume in a weight ratio of silica fume (calculated as dry weight) to cement of about 2:98 to about 25:75, preferably about 8:92 to about 12:88. The presence of non-thixotropic silica fume in the mix enables lightweight roof tiles of adequate flexural strength to be obtained from the mix by extrusion. Novel cement/lightweight aggregate/water mixes containing non-thixotropic silica fume and novel roof tiles prepared therefrom are also described.

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European Search Report, EP 85306036.6, Nov. '85, (2 pp.).
Search Report, Appl. No. 8521125, Oct. '85, (1 p.)

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