作者: John D. Fontana , Louis R. Fontana
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摘要: A method for making decorative concrete blocks which have inlays and are especially suitable use as floor or patio tiles. The involves two steps in with different degrees of wetness is employed. As an initial step, a first form, configured to define the desired inlaid pattern, placed on support. form filled charge concrete, has lesser preferably colored, produce pattern inlay. Thereafter, compacted whereafter removed without delay material allowed harden. In further second dimensioned surround inlay greater degree then poured into until it produces layer surrounds pattern. wet set harden sufficiently such that bonded formed by concrete. To enhance adherence between charges, roughened edge trowelling. Also, made tapered elements facilitate both compacting subsequent withdrawal.