Methods of making paving block

Details Methods of making paving block Methods of making paving block

1976-01-26

1978-07-04

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 86, B28B 300

Patent

active

040988651

ABSTRACT:
A method and mold are provided for making interlocking paving block and the like in which an aqueous concrete slurry is placed in a mold and subjected to instantaneous pressure of at least 1000 pounds per square inch over its entire surface to expel a large portion of water from the slurry, removing the formed article and curing. The mold is made up of a generally rectangular carrier plate with vertical sidewalls in which is placed a base plate, a pair of side plates and spacer wedge plates holding the end and side plates and a die head plate entering the mold.

REFERENCES:
patent: 2877531 (1959-03-01), Heine
patent: 3825382 (1974-07-01), Davidson
patent: 3838001 (1974-09-01), Greiner

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