UHPFRC a Novel Combination Material for Blast Resistant Structures

Abstract

This paper focuses on the need of increasing the demand for safety and security of concrete structures in the wake of the breakdown of terrorism acts through explosions, missile and nuclear attacks on strategic domestic, government and defence buildings. The blast protecting design is necessary to protect people from death, and to prevent serious damage to the concrete structural components. The newly developed super plasticized concrete such as Ultra High Performance Fiber Reinforced Concrete (UHPFRC) is an ideal application for blast load. Several research organizations works focused on the development and design of new Blast-proof concrete to increase structural resistance. The terrorist attack and blast resistant structures (TABRS) design enhances the building security against explosives and terrorist effects in structural stability design, which is essential for a structures to be fully blast resistant. So far, there is no published report on the UHPFRC material used. Consequently, The experimental work is carried out with special micro particles to increase density and toughness of concrete, in order to control blast load. The test results shows that the utilization of Hooked end steel fiber enhanced the mechanical properties at 90OC temperature, helping in gaining the high compressive strength and flexural strength. Results in 28 days are examined and compared with the recent research works. From the acquired test results it is evident that UHPFRC has superior properties than HSC,NSC. Finally, it is concluded that the material can be best utilized for Blast protective structures, military and defense buildings.
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