Energy dissipation in self-compacting concrete with or without fibers in compression

![CDATA[Fiber-reinforced self-compacting concrete (FRSCC) is an advanced high-performance construction material that combines features of fresh properties of the self-compacting concrete (SCC) with improved characteristics of hardened concrete as a result of fiber addition. Consequently, FRSCC covers both FRSCC and SCC applications. An extensive experimental program is carried out to monitor and record the damage energy dissipation of SCC and FRSCC cylinder specimens under the uniaxial compression. For this purpose, four different SCC mixes including plain SCC, steel, polypropylene, and hybrid FRSCC mixes are considered in the test program. The energy absorption per unit volume under compression is determined as the area under the stress-strain curve. The compressive stress-strain curve is plotted at 3, 7, 14, 28, 56, and 91 days. The experimental results indicate that the damage energy dissipation depends uniquely upon the strain range that undergo by the specimen. Moreover, new relationships are proposed to predict the energy dissipation of the specimens according to their age. The proposed models provide reasonable agreement with the measured experimental values.]]