{"id":{"repo_id":"sheffield-hallam","oai_identifier":"oai:shura.shu.ac.uk:19616"},"canonical_url":"https://search.dev.ndltd.org/etd/sheffield-hallam/oai:shura.shu.ac.uk:19616","repository":{"repo_id":"sheffield-hallam","name":"Sheffield Hallam University","base_url":"https://shura.shu.ac.uk/cgi/oai2"},"display":{"title":"Some aspects of P.F.A. in concrete.","abstract":"The use of pulverised fuel ash (p.f.a.) in concrete has been the subject of widespread discussion and debate in recent years. One of the principal problems of using this material is its variability in quality with respect to both source and power station load. The object of this investigation is to assess the influence, upon the workability, strength and durability properties of concrete, using selected and unselected material from the same source. 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