| http://www.w3.org/ns/prov#value | - The following percentages by weight of the final mixture of all ingredients are recommended: Percent by weight of final mixture Various mixtures of the different components are quite acceptable, e.g., (1) mixtures of various minerals including silica flour, sulfates such as barytes or plaster of Paris, portland cement, fly ash; (2) mixtures of various polymers including acrylamides copolymerized w
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