Early structural build-up, setting behavior, reaction kinetics and microstructure of sodium silicate-activated slag mixtures with different retarder chemicals

The utilization potential of citric acid, sodium tetraborate decahydrate and triphosphate pentabasic to control fresh state properties silicate-activated alkali-activated slag cements (AASC) has been studied. early structural build-up, reaction kinetics, pore solution chemistry, setting behavior, hardened such as microstructure, structure, mechanical AASC with these chemicals were investigated. Test results showed that kinetics behavior can be well controlled by using chemicals. acid was found the most effective admixture prolong times AASC; however, it caused a dramatic decrease in properties. On other hand could provide slight delay times, while prolonged significantly without any detrimental effect on