Performance of sustainable concretes containing very high volume Class-F fly ash and ground granulated blast furnace slag

摘要: In recent years, with the aim of lowering environmental impact concrete, partial replacement cement in concrete fly ash (FA) and ground granulated blast furnace slag (GGBS) has received significant attention. This paper presents first experimental study on properties containing ternary binders high volume Class-F FA GGBS partially replacing up to 90%. A total 15 batches were manufactured binary based FA, GGBS, cement. Experimental tests performed establish density, workability, compressive strength, elastic modulus, flexural splitting tensile water absorption different mixes. The results indicate that strength decreases significantly an increase content from 50% concretes at 90% exhibit a similar conventional after 28 days. It is found mixes 70% ratio relative (Ψ) 1:2, those Ψ 1:1 develop 28- 90-day concrete. further decrease strength. also show slightly higher 28-day modulus than mix. Although majority lower (Ψ 1:2) 1:1) ratios observed content, respectively, moderate All These highly promising findings suggest technology used this can provide attractive avenue for use possibility reducing its impact.