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Influence of Reinforced Ferrocement Concrete Plates under Impact Load


Author : Yousry B.I. Shaheen, Noha Mohamed Soliman and Doha El Metwally Kandil

Pages : 1528-1540
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Abstract

The impact load such as loads acting on bridges, the train road, the roads, the airplanes and the machine. The main objective of this research is to study the impact resistance of reinforced ferrocement concrete plates reinforced with various types of reinforcing materials. Twenty ferrocement plates were designed and tested with dimensions of 500 × 500 × 25mm. The test specimens were loaded by 1.15 kg under its height 1.12m at the center of plates. The ferrocement plates were divided into five groups reinforced with skeletal steel bars, metal meshes and metal meshes with steel bars. High resistance ferrocement plates could be developed with high crack resistance and energy absorption properties. All the initial cracking impact energy, impact energy up to failure were extensively determined for all the tested plates. Results of reinforced ferrocement plates emphasized that, increasing the number of the steel mesh layers in the ferrocement composites increases energy at first cracking, energy at up to failure, and energy absorption properties. Employing steel bars with steel meshes achieved to higher energy absorption compared with those reinforced with steel bars only. This could be attributed to the effect of welded and expanded steel meshes in controlling the developed cracks. Increasing the number of the steel bars with welded and expanded steel mesh layers in the ferrocement composites delaying the occurrence of the first cracking as result of increasing the specific surface area of steel meshes, which leading to higher bond area. Thin ferrocement concrete plates were developed with high strength, crack resistance, high ductility and energy absorption properties very useful for dynamic applications with great economic advantages for developed and developing countries alike.

Keywords: Impact load; Ferrocement; Concrete Plate; Reinforced Concrete.

Article published in International Journal of Current  Engineering  and Technology, Vol.3,No.4(Oct- 2013)

 

 

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