Self-compacting Concrete-filled Steel Tubes Prepared from Manufactured Sand with a High Content of Limestone Fines

• Published in: Journal of Wuhan University of Technology. Materials science edition Vol. 26; no. 2; pp. 326 - 329
• Main Authors: Li, Beixing, Zhou, Mingkai, Fang, Yanwei, Song, Putao, Ke, Guoju
• Format: Journal Article
• Language: English
• Published: Heidelberg Wuhan University of Technology 01.04.2011; Springer Nature B.V
• Subjects: Buckminsterfullerene; Chemistry and Materials Science; Concretes; Fullerenes; Limestone; Materials Science; Sand; SCC; Self-compacting concrete; Structural steels; Tubes; 人工砂; 混凝土施工; 石灰石; 自密实混凝土; 钢管混凝土; 高含量; manufactured sand; self-compacting concrete; quarry fines; performances
• ISSN: 1000-2413; 1993-0437
• DOI: 10.1007/s11595-011-0223-3

To meet the requirements of construction of concretes filled in the steel tube arches,a C60 grade micro-expansive self-compacting concrete （SCC） was prepared from manufactured sand （MS）.The utilization of MS with a high content of quarry limestone fines was dealed for SCC applications.The workability,compressive and splitting strength,modulus of elasticity,restrained expansion and chloride ion permeability as well as freeze-thaw resistance of three MS-SCC mixes with fines content of 3%,7% and 10% were tested and compared with those of the natural sand （NS）-SCC mix.The experimental results indicate that the performances of the C60 MS-SCC with fines content of 7% are excellent and compared favorably with those of C60 NS-SCC.