Mechanical properties and constitutive relation of hydrotalcite-carbon nanotube concrete: Fullerenes, Nanotubes and Carbon Nanostructures: Vol 29, No 12

Summary

Co-Fe-Mg-Al quaternary hydrotalcite-carbon nanotube composites (LDH-CNT composites) have been ready by co-precipitation technique and blended into concrete. Common testing machine and SHPB testing machine have been used to hold out static and dynamic checks on LDH-CNT concrete specimens with completely different LDH-CNT additions (0, 0.25 wt.%, 0.5 wt.%), and the dynamic constitutive equation was obtained in accordance with the dynamic stress-strain curve. Outcomes present that in contrast with extraordinary concrete, the compressive energy and toughness of LDH-CNT concrete have been vastly improved. When the LDH-CNT composites content material is 0.5 wt.%, the energy and toughness are elevated by 10.8% and 16.3%, respectively; The dynamic compression mechanical properties of LDH-CNT concrete present a big pressure price impact, and the impression compression mechanical parameters improve with the rise of the utmost pressure price. Within the pressure price vary of 10°∼10²s⁻¹, the theoretical curve and the measured curve match higher, and the constitutive equation can describe the dynamic mechanical response of LDH-CNT concrete.