摘要
本文在碱激发粉煤灰矿物聚合物的基础上,研究了在粉煤灰中掺入适量硅灰形成碱激发硅灰-粉煤灰基矿物聚合物的性能。结果表明,当碱激发剂Na2S iO3.9H2O用量20wt%,硅灰掺量10wt%时,碱激发硅灰-粉煤灰基矿物聚合物在室温养护下抗压强度达到58.83 MPa,较不掺硅灰的矿物聚合物强度提高了72%。X衍射分析表明,形成的矿物聚合物为无定形矿物相,SEM微观形貌分析表明,掺入硅灰后,矿物聚合物的微观结构更加致密,其强度大幅度提高。
The performances of alkali-activated silica fume and fly ash based geopolymer were studied based on alkali-activated fly ash geopolymer.The results showed that the compressive strength of geopolymer was 58.83 MPa in the curing time of ambient temperature and it increased by 72% comparing to the geopolymer without silica fume when the amount of activator,Na2SiO3·9H2O,was 20wt% and incorporation of silica fume was 10wt%.The XRD results demonstrated that the geopolymer took the shape of amorphous phase.SEM images showed that the microstructure of geopolymer was further densification and the compressive strength was significantly improved after silica fume was added.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2011年第1期50-54,共5页
Bulletin of the Chinese Ceramic Society
基金
陕西省工业攻关项目(2010K01-080)
西安建筑科技大学西部建筑科技国家重点实验室(筹)开放基金资助项目(10KF05)
关键词
碱激发
粉煤灰
抗压强度
矿物聚合物
alkali-activated
fly ash
compressive strength
geopolymer
