Quantitative description of the effect of slag surface area on its reaction kinetics in sodium silicate-activated materials

The effects of chemical oxides and the surface area (SA) slags on initial reactivity alkali-activated materials (AAMs) are coupled. It is well known that slag in AAMs impacted by SA, however, a quantitative measure this effect was not provided previous studies. For proper understanding chemistry reaction kinetics AAMs, description SA's required. activated were monitored using isothermal calorimetry. SAs pulverised linked to time-to-reach-the-main-peak (TTRP) reaction, slope acceleration part main peak, total heat at one, three, seven days. A 100% relative increase SA caused ~51%-75% decrease TTRP. stage also considerably increased with slags. However, only distinct up three days then reduced result study indicates cannot be simply considered proportional contribution. outcome can provide promising decouple compositions providing results for SAs.