Effect of Using Ferro-Cement on the Mechanical Properties of ...

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Paper: ASAT-13-MS-24
� In perforation mode, increasing volume fraction does not significantly improve impact
resistance. However, the spalling area is smaller compared to slabs with fewer
numbers <strong>of</strong> meshes or without meshes.
� The advantages <strong>of</strong> using ferrocement can clearly be seen, when slabs fail in scabbing
mode. It was observed that not only the missile perforation was prevented, but also
the damage in front and in back face was reduced significantly.
� In scabbing mode, ferrocement layer catches the bullet and no concrete flies.
4.3. Fire
� The ferrocement layers can resist fire and crack propagation at 700C o for 30 minutes
� Increasing in volume fraction increased the fire resistance effect slabs.
4.4. Fire-Penetration
� The same advantages <strong>of</strong> ferrocement in penetration are as in fire-penetration.
� <strong>Ferro</strong>cement slabs, fire tested, with 2 meshes lays showed less resistance to
penetration compared to non-fire tested slabs. Increasing the volume fraction might
cancel that observation.
5. Recommendations
� <strong>Using</strong> different types <strong>of</strong> meshes.
� <strong>Using</strong> different thickness <strong>of</strong> ferrocement layer.
� <strong>Using</strong> different types <strong>of</strong> weapons.
� Compare the resistance <strong>of</strong> ferrocement to fire with different materials used in this field
6. References
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Reinforced Concrete Target By Rigid Projectile” Int. J. Impact Eng., Vol., 35,
(2008),pp.1119–1129
[2] Yuh-Shiou Tai, and Chia-Chih Tang ,"The Dynamic Behavior <strong>of</strong> Reinforced Concrete
Plates under Normal Impact "Theoretical and Applied Fracture Mechanics
(2006),pp.,117-127
[3] M.H. Zhang, V.P.W. Shim, G. Lu and C.W. Chew, "Resistance <strong>of</strong> High-Strength
Concrete to Projectile Impact", Int. J. Impact Eng., Vol. 31, (2005), pp., 825–841.
[4] J.G. Hasslid," A Study <strong>of</strong> Long Rod Penetration Performance in Reinforced
Concrete"20TH international symposium on ballistics ,Orland,Fl,23-27 September
,(2002),pp.,1153-1158
[5] P.S. Song, J.C. Wu , S. Hwang , B.C. Sheu "Assessment <strong>of</strong> Statistical Variations In
Impact Resistance <strong>of</strong> High-Strength Concrete and High-Strength Steel Fiber-Reinforced
Concrete" Cem. Concr. Res.,Vol.35, (2005), pp.,393–399.
[6] A.W. Hago , K.S. Al-Jabri , A.S. Alnuaimi , H. Al-Moqbali , M.A. Al-Kubaisy,"
Ultimate and service behavior <strong>of</strong> ferrocement ro<strong>of</strong> slab panels" Construction and
Building Materials Vol.19,(2005),pp., 31–37.
[7] Venn, Anthony, Bryen "<strong>Ferro</strong>cement Composition, Method <strong>of</strong> Forming Objects
Therefrom and Apparatus for Use in Such A Method" (WO-1991-
012215)August,(1991)
[8] Hori, S., “Experimental Study on Local Damage and Behavior <strong>of</strong> <strong>Ferro</strong>cement Panels
Subjected to Missile Impact,” Master Thesis, Department <strong>of</strong> Built Environment, Tokyo
Institute <strong>of</strong> Technology, March 2003, 135 pages