Effects of Supplementary Cementitious Materials and Curing Condition on Mechanical Properties of Ultra-High-Performance, Strain-Hardening Cementitious Composites

This study investigated the influence of ordinary Portland cement (OPC) and reactive non-reactive mineral additives on characteristic microstructure mechanical performance ultra-high-performance, strain-hardening cementitious composites (UHP–SHCCs). Nine mixes were considered composed materials, such as ground granulated blast furnace slag (GGBS), silica fume (SF), kiln dust (CKD), flour. Compressive strength direct tensile tests performed nine cured for 7 d 28 d. The test result was analyzed based microstructural inspections, including thermogravimetry scanning electron microscopy. analysis showed that property UHP–SHCC impacted compressive behavior also influenced fiber-matrix interaction. Although most specimens did not exhibit notable behaviors, specimen containing CKD exhibited a 11.6 MPa very high strain capacity 7.5%. All with OPC, flour, GGBS, or SF considerably improved at only OPC binder could achieve 6.2%.