Uniaxial compression tests at various loading rates for reactive powder concrete

摘要

Concrete is a material that is sensitive to the rate of loading. Understanding the dynamic behavior of concrete under various circumstances is an issue of great significance for applications in civilian and military engineering. Hence, an experimental investigation on the dynamic mechanical properties of the reactive powder concrete (RPC) was conducted using the split-Hopkinson pressure bar (SHPB). The specimens were made with different steel fibre volume fractions and the strain rate ranged from 10(1) s(-1) to 10(3) s(-1). The results show the obvious rate-dependent mechanical behavior exists for RPC. Moreover, the different of the characteristic of energy absorbed are compared.