Steel fiber reinforcement for extruded prestressed hollow core slabs
Peaston, C. H., Elliott, K. S. and Paine, K. A., 1999. Steel fiber reinforcement for extruded prestressed hollow core slabs. In: Banthia, N., Macdonald, G. and Tatnall, P., eds. Structural Applications of Fiber Reinforced Concrete. American Concrete Institute, pp. 87-107. (SP-182)
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An experimental investigation was conducted to assess the potential of steel fibers as secondary reinforcement in prestressed hollow core slabs. Following a brief laboratory study and a feasibility trial, a series of fibre reinforced extruded slabs were made at the premises of a local manufacturer and subsequently tested in shear: one of a number of potential modes of failures. The Predictive equations of other researchers were shown to accurately estimate the shear strength in the case of plain hollow core slabs, but to overestimate the shear enhancement due to adding steel fibers. Additionally, the effect of the manufacturing process, in which the concrete is compacted by rotating augers, on the fiber distribution and orientation was investigated. Whilst fibers were found to be randomly distributed within the cross-section, a tendency to align vertically within the webs was observed. This has particular relevance to the vertical shear performance.
|Item Type||Book Sections|
|Creators||Peaston, C. H., Elliott, K. S. and Paine, K. A.|
|Editors||Banthia, N., Macdonald, G. and Tatnall, P.|
|Uncontrolled Keywords||steel fibers,shear strength,precast concrete,shear testing,reinforcing materials,hollow core slabs,prestressed concrete,extrusion,fiber reinforced concrete|
|Departments||Faculty of Engineering & Design > Architecture & Civil Engineering|
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