This paper studied the hydration and strength influence factors ofSteel Slag Cement (SSC), such as the quantity of steel slag and slagand the dosage of additive. The results show that: (a) In the processof hydration o...This paper studied the hydration and strength influence factors ofSteel Slag Cement (SSC), such as the quantity of steel slag and slagand the dosage of additive. The results show that: (a) In the processof hydration of SSC, steel slag and slag activate each other; (b)Waterglass's structure forms the preliminary skeleton of SSC, and thehydration products of SSC link or fill in the skeleton; (c) Sodium inWaterglass is the catalytic and its concentration does not change inthe process of hydration. (d) Structure of activation is asignificant factor to the property of SSC.展开更多
This paper reports some new understandings and advances in waterglass sand technologies. The multiple chemical modification process can increase the binding strength of the waterglass sand by up to 50%-70%. Therefore,...This paper reports some new understandings and advances in waterglass sand technologies. The multiple chemical modification process can increase the binding strength of the waterglass sand by up to 50%-70%. Therefore, the additions of the modified waterglass can be decreased to 3.0%-4.0% for CO2 process and to 2.0%-2. 5% for organic ester hardening process, and greatly improve the collapsibility and reclaimability of the sand. Based on the new understandings and experimental results reported in this paper, several original ideas, such as nano modification, have been proposed to promote advances of waterglass sand technologies,展开更多
文摘This paper studied the hydration and strength influence factors ofSteel Slag Cement (SSC), such as the quantity of steel slag and slagand the dosage of additive. The results show that: (a) In the processof hydration of SSC, steel slag and slag activate each other; (b)Waterglass's structure forms the preliminary skeleton of SSC, and thehydration products of SSC link or fill in the skeleton; (c) Sodium inWaterglass is the catalytic and its concentration does not change inthe process of hydration. (d) Structure of activation is asignificant factor to the property of SSC.
文摘This paper reports some new understandings and advances in waterglass sand technologies. The multiple chemical modification process can increase the binding strength of the waterglass sand by up to 50%-70%. Therefore, the additions of the modified waterglass can be decreased to 3.0%-4.0% for CO2 process and to 2.0%-2. 5% for organic ester hardening process, and greatly improve the collapsibility and reclaimability of the sand. Based on the new understandings and experimental results reported in this paper, several original ideas, such as nano modification, have been proposed to promote advances of waterglass sand technologies,
