Fresh properties, mechanical strength and microstructure of fly ash geopolymer paste reinforced with sawdust

摘要

This work aims to verify the feasibility of utilizing sawdust in geopolymer to make reinforced composites and broaden application of sawdust in geopolymer. Fresh properties including workability and setting time, density, nailing ability, drying shrinkage, mechanical strength and microstructure of fly ash geopolymer activated by sodium silicate and sodium hydroxide solutions blended with 0-20% of sawdust by mass with an interval of 5% were investigated.