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专利名称：Methods of making refractory bodies发明人：Gangolf W. Kriechbaum,Volker Gnauck申请号：US08/797377申请日：19970207公开号：US05885510A公开日：19990323
摘要：A method for manufacturing a reinforced cementitious columnar structurecomprising: (a) providing a mold having a cavity which corresponds to a shape and size ofthe columnar structure; (b) filling the cavity with dry coarse particulates to form a formeddry body comprising 50-90 volume percent coarse particulates having a particle sizebetween about 1 and 60 mm so as to form a core volume; (c) introducing a slurry ofcementitious material containing an amount of fine material which has been determinedbeforehand, the fine material having a particle size smaller than the size of interstitialvoids of the coarse particulates into the core volume, the fine material and the
cementitious material filling the core volume and the cementitious material infiltiratingand encapsulating the coarse particulates, and the fine material remaining within the corevolume; (d) curing the slurry of cementitious material to form the reinforcedcementitious columnar structure; and (e) separating the mold from the reinforcedcementitious columnar structure.
申请人：ALCOA CHEMIE GMBH
代理人：David W. Pearce-Smith
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