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

研究了柠檬酸、十水四硼酸钠和五碱式三磷酸钠在控制硅酸钠活化碱矿渣水泥（AASC）的新鲜状态性能方面的利用潜力。研究了 AASC 与这些化学品的早期结构形成、反应动力学、孔溶液化学、凝固行为和硬化性能，如微观结构、孔结构和机械性能。测试结果表明，使用这些化学品可以很好地控制 AASC 的早期结构形成、反应动力学和凝固行为。发现柠檬酸是延长AASC凝固时间最有效的外加剂；然而，它导致机械性能急剧下降。另一方面，五碱基三磷酸钠可以稍微延迟凝固时间，