Methods for forming shapes or blocks of no mix cements

Details Methods for forming shapes or blocks of no mix cements Methods for forming shapes or blocks of no mix cements

1987-09-28

1989-06-13

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

264109, 264122, 264219, 264299, 264333, 264334, B28B 114, B29C 3902

Patent

active

048391158

ABSTRACT:
A method for molding a cementitious composition into an article having a desired shape or configuration by preparing a mold in a predetermined shape or configuration corresponding to the desired shape or configuration of the article, substantially filling the mold with water to provide a substantial excess of that needed for hydration of the cementitious composition which will be used to make the article, introducing into the water in the mold a dry cementitious composition in the form of finely divided particles of at least one cement binder in an amount of greater than 20 percent by weight of the composition, the major proportion of the particles having approximately the same drop rate, by pouring the composition into the water without any type of physical mixing of the cementitious composition and the water other than the mixing which occurs when the composition becomes completely hydrated by combining with a portion of the water and displacing excess water, if any, from the mold, and allowing the hydrated cementitious composition to set or cure to a self supporting solid in the desired shape or configuration.

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