摘要
利用陶瓷抛光砖粉制备蒸压硅酸盐制品,并与采用粉煤灰的制品进行对比.通过IR、XRD、SEM以及EDS等方法研究制品的水热特性、水化产物组成和形貌,并测试其强度.研究结果表明:陶瓷抛光砖粉在蒸压条件下有较高的火山灰活性;在相同配比条件下,抛光砖粉中参与反应的活性SiO2远比粉煤灰多,可生成较低Ca/Si值的水化产物,其蒸压制品强度高于粉煤灰制品;当石灰与抛光砖粉的质量比为1∶3时,所得的蒸压制品强度较高.
Autoclaved silicate products were fabricated with ceramic polishing powders as the raw material. The products were then compared with those fabricated with fly ash. Moreover, the hydrothermal properties, mineralogical compositions and morphologies of the products were investigated by means of IR, XRD, SEM and EDS, and the corresponding strengths were also measured. The results show that the autoclaved condition is beneficial to inspiring the pozzolanic activity of ceramic polishing powders, and that, as compared with fly ash, ceramic polishing powders provide more activated SiO2 for the reaction, thus lowering the Ca/Si ratio of the hydration product and improving the strength of the autoclaved products. It is also found that the products possess the highest strength at a lime-to- polishing powders mass ratio of 1 ： 3.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第7期124-127,133,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
广州市科技攻关项目(2004440003110013)
关键词
抛光砖粉
粉煤灰
蒸压制品
火山灰活性
水化产物
强度
ceramic polishing powder
fly ash
autoclaved silicate product
pozzolanic activity
hydration pro- duct
strength
