Ag/MWCNT EMSE History of engineering & technology PTFE film SiC sludge Technology: general issues alkaline activator solutions asphalt concrete autoclave test basic oxygen furnace slag carbon fiber-reinforced polymer carbonization process cement soil compressive strength emissivity energy dissipation expansion behavior fiber-reinforced concrete flame retardant geopolymer geopolymer reaction geopolymer technology graphene nanoplatelets graphene nanoplatelets/epoxy nanocomposite heat flux heat storage inorganic laminated woven fabric light reflectivity mechanical properties