硅酸盐学报2012，Vol.40Issue(1)：39-48,10.
粉煤灰混凝土抗硫酸盐侵蚀性能（英文）
Sulfate Resistance of Fly Ash Concrete
李观书1
作者信息
- 1. Lafarge Research Center, St Quentin Fallavier 38291, France／Lafarge亚洲技术中心,中国北京100027
- 折叠
摘要
Abstract
To investigate the sulfate resistance of fly ash concrete,specimens of concrete were prepared at 20 ℃ using different types of fly ash with fixed water-binder ratios.After pre-test curing in water at 8 or 20 ℃ for 14,28 and 90 d,the specimens were put into sodium sulfate solution at 16 g/L SO42- at 20 ℃ and 8 ℃,the lowest concentration used in current standards.The sulfate resistance was evaluated by visual examination and by monitoring length change.The effects of the fly ash type,the pre-test curing time,and the testing temperature were investigated.The results show that the lime content,the sulfate content and the alkali content of the glassy phase are the main factors controlling the sulfate resistance of fly ash concrete.A mechanism was proposed to explain the influence of the fly ash composition on sulfate resistance of fly ash concrete.关键词
粉煤灰混凝土/抗硫酸盐侵蚀性/粉煤灰/玻璃相组成/先期养护Key words
fly ash concrete/sulfate resistance/fly ash/glassy composition/pre-test curing分类
化学化工引用本文复制引用
李观书..粉煤灰混凝土抗硫酸盐侵蚀性能（英文）[J].硅酸盐学报,2012,40(1):39-48,10.
