关键词: 热水解污泥;水泥熟料;微观机理

Abstract: Cement clinker was prepared by adding different proportions of sludge ash .The influence of the clinker on the mineral and micro-structure of clinker was investigated by flammability test , diffraction, petrographic analysis, nuclear magnetic resonance etc .The results show that the content of f-CaO decreased first and then increased with the increase of sludge content .And the ratio of C3 S/C2 S lead to the reverse law by diffraction and nuclear magnetic resonance .The content of C3 S was the highest when the amount of sludge was one percent .At this percent, the crystalline type was complete and the mineral phases was well distributed through lithofacies analysis .The optimum content is one percent from mineral composition and microstructure.

Key words: thermal hydrolysis sludge;cement clinker;microcosmic mechanism