Inspection And Testing for Quality In HPC


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Title: Inspection And Testing for Quality In HPC

Author(s): Michael T. Russell

Publication: Concrete International

Volume: 17

Issue: 11

Appears on pages(s): S9-S12


Date: 11/1/1995

HPC has usually been associated with major construction projects such as high-rise buildings, bridges, and offshore drilling platforms where strength is of primary concern. Therefore, definitions of HPC have generally been somewhat narrow and confined to strength criteria. However, it is becoming more common to specify HPC to meet specific design concerns such as ease of placement and compaction without segregation, enhanced longterm mechanical properties, high early strengths, high toughness, volume stability, and long life in severe environments. A broader definition of HPC that recognizes these applications was proposed by Carino and Clifton; they advocate that high-performance concrete is concrete having desired properties and uniformity which cannot be obtained routinely using only traditional constituents in normal mixing, placing, and curing practices. HPC can, therefore, be described as optimized concrete and, as such, is critically more dependent on material selection, proportioning, mixing, placing, and curing than normal concrete.