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Title: Resistance of plain and fibre-reinforced high-strength concrete to projectile impact
Keywords: compressive strength, concrete, crack, crater diameter, dynamic modulus of elasticity
Issue Date: 10-May-2005
Citation: MOHAMMAD SHOWKAT HOSSAIN SHARIF (2005-05-10). Resistance of plain and fibre-reinforced high-strength concrete to projectile impact. ScholarBank@NUS Repository.
Abstract: This thesis presents results from an experimental study on the impact resistance of concrete with 28-day compressive strengths of 45 - 210 MPa subjected to impacts by 12.6mm ogive-nosed projectiles at velocities ranging from 615 to 714 m/s. Effects of the content, type, and length of fibres in concrete, concrete strengths, and aggregate on the impact resistance are evaluated and discussed. The results indicate that the incorporation of a small amount of fibres can reduce the crater diameter effectively as the fibres are able to bridge cracks and to hold concrete together. However, in order to reduce the penetration depth, reduced water-to-cement ratio, increased strength of the concrete matrix, and use of strong aggregates are required. The results also indicate that the steel fibre-reinforced concrete is more efficient in resisting the projectile impact compared with the concrete with the polypropylene or polyethylene fibres.
Appears in Collections:Master's Theses (Open)

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