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Title: Shrinkage and Creep of High-Performance Self-Compacting Concrete (HPSCC)

Author(s): B.S.M. Persson

Publication: Symposium Paper

Volume: 220


Appears on pages(s): 155-180

Keywords: chloride; creep; fire; frost; HPC; polypropylene; SCC; shrinkage; sulfate

DOI: 10.14359/13156

Date: 3/1/2004

An experimental investigation of HPSCC, is outlined. Optimizations were performed on a laboratory scale according to an ideal grading of the particles in the fresh concrete for SCC, with high strength, high durability in marine environment or with fire spoiling safety. SCC was introduced in the full-scale production of beams and piles. The results showed high slump flow and robustness that allowed for a reasonable variation of the water-cement ratio, w/c, keeping the fresh concrete properties within the limits of the full-scale production even at elevated temperature. Creep, shrinkage, salt frost scaling and sulphate resistance did not differ much from the corresponding properties of vibrated concrete, NC. Internal frost resistance was improved for SCC compared with NC but the chloride migration was larger in SCC with limestone powder than in NC. Spoiling of the concrete during fire, especially in low-w/c concrete, was avoided by use of polypropylene fibers.


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