The Influence of Wire Type Indentation on Longitudinal Splitting in Pre-Stressed Concrete

Abstract:

The important characteristic in the creation of longitudinal splitting cracks in pretensioned concrete members has found to be the geometry of the pre-stressing wire indents. Longitudinal splitting along prestressing tendons can result in severe splitting of prestressed member in the field under loading over time. The research evaluated the influence of wire type indentation on the longitudinal splitting in prestressed concrete members fabricated with different concrete mixtures and different compressive strength of concrete. A key objective was to find the best type of wire to avoid failures in the field. A study was conducted at Kansas State University to understand the effect of wire type on the longitudinal splitting between prestressing steel and prestressed concrete. Three different types of wires will be presented in this paper denoted as “WB”, “WF” and “WQ”. The wires have different parameters which include indent depth, indent width, indent sidewall angle, indent pitch and indent volume.

• Periodical: Advanced Materials Research (Volume 1165)
• Pages: 65-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1165.65
• Online since: July 2021
• Authors: Adrijana Savić*, Aref Shafiei Dastgerdi, Robert J. Peterman, B. Terry Beck
• Keywords: Compressive Strength of Concrete, Prestressed Concrete, Railroad Ties, Wire Type

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