Impact resistance of hybrid-fiber engineered cementitious composite panels

2013 ◽  
Vol 104 ◽  
pp. 320-330 ◽  
Author(s):  
Khin T. Soe ◽  
Y.X. Zhang ◽  
L.C. Zhang
Keyword(s):  
Impact Resistance ◽  
Composite Panels ◽  
Cementitious Composite ◽  
Hybrid Fiber ◽  
Engineered Cementitious Composite

High Velocity Impact Behaviour of Hybrid-Fiber Engineered Cementitious Composite Panels

2012 ◽  
Vol 450-451 ◽  
pp. 563-567 ◽  
Author(s):  
Joel Bell ◽  
Yi Xia Zhang ◽  
Khin Soe ◽  
Phillip Hermes
Keyword(s):  
High Velocity ◽  
Impact Damage ◽  
Impact Resistance ◽  
High Velocity Impact ◽  
Cementitious Composite ◽  
Protective Material ◽  
Velocity Impact ◽  
Impact Behaviour ◽  
Engineered Cementitious Composite ◽  
Hybrid Fibre

High-velocity impact behaviour of hybrid-fibre engineered cementitious composite (ECC) panels subjected to an impact from a hardened steel, ogive-nosed projectile at velocities between 300-700 m/s is investigated and reported in this paper. The new ECC mix contains a proportion of 0.75% volume high-modulus steel fibres and 1.25% volume low modulus polyvinyl-alcohol (PVA) fibres. The mix is designed to achieve a desired balance between the strain hardening behaviour and impact resistance of material required for impact and blast resistant structures. The new hybrid-fibre ECC demonstrates its excellent capability for impact resistance and strong potential as a protective material with reduced impact damage and distributed micro cracking.

Material Properties of a New Hybrid-Fiber Engineered Cementitious Composite

2012 ◽  
Vol 450-451 ◽  
pp. 433-438
Author(s):  
Phillip Hermes ◽  
Yi Xia Zhang ◽  
Khin Soe ◽  
Joel Bell
Keyword(s):  
Compressive Strength ◽  
Material Properties ◽  
Elasticity Modulus ◽  
Modulus Of Rupture ◽  
Strain Rates ◽  
Cementitious Composite ◽  
Hybrid Fiber ◽  
Normal Concrete ◽  
Engineered Cementitious Composite ◽  
Concrete Mix

A new hybrid-fiber Engineered Cementitious Composite (ECC) containing 1.25% steel (SE) fibers and 0.75% Polyvinyl Alcohol (PVA) fibers is proposed, and material properties of the new ECC mix are tested in this paper. The compressive strength, modulus of elasticity, modulus of rupture and tensile properties under various strain rates of the new hybrid-ECC mix are investigated experimentally. The tested results are compared with those for a normal concrete mix, as well as those for other mono-fiber and hybrid-fiber ECCs reported in other literatures.

scholarly journals Strengthening of Masonry Walls Using Hybrid-fiber Engineered Cementitious Composite

2009 ◽  
Vol 44 (8) ◽  
pp. 1007-1029 ◽  
Author(s):  
V.W.J. Lin ◽  
S.T. Quek ◽  
M.P. Nguyen ◽  
M. Maalej
Keyword(s):  
Masonry Walls ◽  
Cementitious Composite ◽  
Hybrid Fiber ◽  
Engineered Cementitious Composite

High-velocity impact behaviour of a new hybrid fibre-reinforced cementitious composite

2017 ◽  
Vol 21 (4) ◽  
pp. 589-597 ◽  
Author(s):  
YX Zhang ◽  
Zachary Kerr ◽  
Brian Jarvis ◽  
Rhys J Volant
Keyword(s):  
High Velocity ◽  
Impact Resistance ◽  
High Velocity Impact ◽  
Cementitious Composite ◽  
Velocity Impact ◽  
Steel Fibres ◽  
Engineered Cementitious Composite ◽  
Concrete Panels ◽  
Hybrid Fibre ◽  
The Impact

In this article, a new engineered cementitious composite reinforced with 0.6% volume steel fibres and 1.5% volume polyvinyl-alcohol fibres is developed aiming for enhanced impact resistance compared to other construction materials. Fundamental mechanical properties of the new composite including the compressive strength, Young’s modulus, tensile strength and flexural behaviour were tested. To calibrate the impact resistance of the new composite, high-velocity impact tests of panels made of the new material were conducted when subjected to impact from a standard 7.62 mm round in-service bullet fired from a knight armament SR-25 military rifle. For comparison, plain concrete panels and concrete panels reinforced with 2% volume steel fibres were also tested. The post-impact responses of the panels in terms of crater sizes, damage failure mode, fragmentation size, weight and regress velocity are analysed and compared to characterize the impact resistance of the new engineered cementitious composite. The test results demonstrate significantly enhanced impact and shatter resistance of the new hybrid fibre-reinforced cementitious composite with reduced spalling and fragmentation, localized damage areas and improved cracking resistance.

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