Spalling Resistance of Hybrid Polyethylene and Steel Fiber-Reinforced High-Strength Engineered Cementitious Composite

Abstract We analyzed the effect of elevated temperatures on integrity high-strength engineered cementitious composite (ECC) made with a hybrid combination polyethylene (PE) and steel fibers. The 50 mm cube specimens were subjected to temperature ranging from 200 800 °C at three different heating rates: 1, 5, 10 °C/min. Five types mixes varying content supplementary materials fibers evaluated. No spalling was observed 1–5 °C/min rate <400 °C. However, for 600–800 °C, all ECC PE fiber volume 1.25 1% spalled explosively. Moreover, matrix silica fume more prone use slag or quaternary blend dolomite an optimum effective in maintaining even very high rates. Thus, type is equally important consider, as well content, while analyzing resistance ECC.