Method for producing a centrifugally cast concrete product

Details Method for producing a centrifugally cast concrete product Method for producing a centrifugally cast concrete product

1987-10-16

1989-07-04

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

106 86, 106 98, B28B 120, C04B 700

Patent

active

048448559

ABSTRACT:
A method for producing centrifugally cast concrete product including charging pumpable concrete into a cylindrical form and rotating the form to cast the concrete by a centrifugal force, in which the concrete contains a high water reducing agent, an air entraining agent and an inorganic fine powder, and 5.5 to 18.5% of air content, thereby considerably reducing the amount of discharged sludge and, in turn, the labor and expenses required for the disposal of sludge, while maintaining the strength of the product as same as or greater than that for conventional products, without the need for complex processes.

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