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Gray System Study on the Influence of Particle Size Distribution of Steel-Slag Powder on Performance of Cementitious Materials
Particle size distribution of converter steel-slag powder prepared by ball milling were tested by the Mastersizer2000 laser diffraction particle size analyzer, the strength and fluidity of the cementitous morter made of 30% (mass fraction) steel-slag powder into standard cement were tested, and grey system theory was used to analysis the relationship between particle size distribution of slag powder and properties of mortar, the gray model of GM (0,2) was established between 28d compression strength and 4∼8 µm particle content. The results show that: the volume fraction of 24∼32 µm particle has a maximum effect on mortar fluidity, 4∼8 µm particle has a maximum effect on 7d and 28d mortar compressive strength, positive correlation; The predicted values agree well with measured values according to gray model.
Gray System Study on the Influence of Particle Size Distribution of Steel-Slag Powder on Performance of Cementitious Materials
Particle size distribution of converter steel-slag powder prepared by ball milling were tested by the Mastersizer2000 laser diffraction particle size analyzer, the strength and fluidity of the cementitous morter made of 30% (mass fraction) steel-slag powder into standard cement were tested, and grey system theory was used to analysis the relationship between particle size distribution of slag powder and properties of mortar, the gray model of GM (0,2) was established between 28d compression strength and 4∼8 µm particle content. The results show that: the volume fraction of 24∼32 µm particle has a maximum effect on mortar fluidity, 4∼8 µm particle has a maximum effect on 7d and 28d mortar compressive strength, positive correlation; The predicted values agree well with measured values according to gray model.
Gray System Study on the Influence of Particle Size Distribution of Steel-Slag Powder on Performance of Cementitious Materials
He, Tu-Sheng (author) / Zhao, Xu-Guang (author) / Zhao, San-Yin (author) / Li, Zai-Bo (author)
2012
5 Seiten
Conference paper
English
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