Research on mechanical properties and micro-mechanism of Engineering Geopolymers Composites (EGCs) incorporated with modified MWCNTs

A state-of-the-art review of the physical and durability characteristics and microstructure behavior of ultra-high-performance geopolymer concrete

“…In a research conducted by Li et al [ 149 ], Engineered Geopolymer Composites were prepared using various hybrid combinations of 0.05 %–0.15 % multi-walled carbon nanotubes and 0.15 %–0.25 % PVA fibers (by vol.). The resulting Engineered Geopolymer Composites exhibited compression strengths ranging from 34 MPa to 39 MPa and bending strengths ranging from 5 MPa to 9 MPa at 28 days.…”

“…The resulting Engineered Geopolymer Composites exhibited compression strengths ranging from 34 MPa to 39 MPa and bending strengths ranging from 5 MPa to 9 MPa at 28 days. The optimal hybrid combination was identified as 0.1 % multi-walled carbon nanotubes and 0.2 % polyvinyl alcohol fibers, which achieved compression and bending strengths of 39.1 MPa and 7.14 MPa, respectively [ 149 ]. Similarly, Al-Majidi et al [ 150 ] investigated Engineered Geopolymer Composites prepared with a hybrid composition of 1 % macro and micro SFs, which exhibited approximately 13 % higher compression strength than Engineered Geopolymer Composites containing 2 % micro SFs alone.…”