Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Enhance hydration properties of steel slag using grinding aids by mechanochemical effect
Highlights ▸ We discuss the effection of different grinding aids on characterization of particles. ▸ We find a new kind of grinding aids F1 more suitable for steel slag grinding. ▸ Measure the hydration characteristic of steel slag systematically, especially at early age.
Abstract Basic oxygen furnace steel slag is a kind of cementitious material with low activity and hard for grinding. The objective of this work was to validate specious grinding aids F1 made in lab which was effective for the grinding of steel slag, thus enhancing the hydration properties. By using 0.05% F1, the Blaine value of steel slag was added up to 361.3m2/kg, the portion of size which is normally smaller than 30μm was increased and its particle size distribution turned homogeneous. The exothermic rate was increased after 8h, and the enhancement of hydration properties was more obvious at early age. More calcium aluminum hydrate was generated at 3days, and the pastes structure tissue became dense after 28days.
Enhance hydration properties of steel slag using grinding aids by mechanochemical effect
Highlights ▸ We discuss the effection of different grinding aids on characterization of particles. ▸ We find a new kind of grinding aids F1 more suitable for steel slag grinding. ▸ Measure the hydration characteristic of steel slag systematically, especially at early age.
Abstract Basic oxygen furnace steel slag is a kind of cementitious material with low activity and hard for grinding. The objective of this work was to validate specious grinding aids F1 made in lab which was effective for the grinding of steel slag, thus enhancing the hydration properties. By using 0.05% F1, the Blaine value of steel slag was added up to 361.3m2/kg, the portion of size which is normally smaller than 30μm was increased and its particle size distribution turned homogeneous. The exothermic rate was increased after 8h, and the enhancement of hydration properties was more obvious at early age. More calcium aluminum hydrate was generated at 3days, and the pastes structure tissue became dense after 28days.
Enhance hydration properties of steel slag using grinding aids by mechanochemical effect
Zhu, Xi (Autor:in) / Hou, Haobo (Autor:in) / Huang, Xuquan (Autor:in) / Zhou, Min (Autor:in) / Wang, Weixing (Autor:in)
Construction and Building Materials ; 29 ; 476-481
20.10.2011
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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