Geopolymerization with bagasse bottom ash and china clay, effect of calcination temperature and silica to alumina ratio
Geopolymerization with bagasse bottom ash and china clay, effect of calcination temperature and silica to alumina ratio
复制标题
甘蔗渣底灰和瓷土的地质聚合，煅烧温度和硅铝比的影响
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
W. Amin
中科院分区：
文献类型：
--
作者：
Noor;M. Faisal;Khan Muhammad;W. Amin
这项工作的目的是研究在最合适的煅烧温度和二氧化硅与氧化铝的比例下使用甘蔗渣灰和瓷土进行地质聚合。这项工作使用了来自制糖业的甘蔗渣和来自巴基斯坦 Shah Dheri Swat 的瓷土。使用 XRF、FTIR 和 XRD 对两种原材料进行了表征。粘土在 600–1000 °C 的温度范围内进行煅烧。使用 2-4 的不同比例的二氧化硅与氧化铝，将所得无定形材料与甘蔗渣灰和硅酸钠反应。该反应在强碱性氢氧化钠溶液中进行，制备地质聚合物水泥，并对其抗压强度和凝结时间进行了研究。使用 XRF、XRD 和 SEM 对地质聚合物水泥样品进行了表征。 SiO2/Al2O3 比为 2.7 的混合物和在 900 °C 温度下煅烧的粘土获得了地质聚合物的最高抗压强度，为 16.64 MPa。
The object of this work to study geopolymerization using bagasse ash and china clay at the most appropriate calcination temperature and ratio of silica to alumina. Bagasse ash from the sugar industry and china clay from Shah Dheri Swat in Pakistan were used in this work. Both of the raw materials were characterized using XRF, FTIR and XRD. The clay was calcined between a temperature range of 600–1000 °C. The resulting amorphous material was reacted with bagasse ash and sodium silicate using different ratios of silica to alumina ranging from 2–4. The reaction was carried out in a strongly alkaline solution of sodium hydroxide to produce geopolymer cement whose compressive strength and setting time were studied. The geopolymer cement specimens were characterized using XRF, XRD and SEM. The highest compressive strength for the geopolymers of 16.64 MPa was obtained from the mix having a SiO2/Al2O3 ratio of 2.7 and clay calcined at a temperature of 900 °C.