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- W2347779647 abstract "The geopllymer is synthesized from ore-dressing tailings of bauxite calcined at 800℃ for an hour,slag and waterglass as alkali-activator under the condition of normal temperature and low alkali content.The reaction product and its microstructure are investigated by XRD and SEM respectively.The comparison of geopolymer mortar's chemical stability with that of special cement is presented as well.The results show that the geopolymer mortar has high strength with 28-day flexural strength of 10.2 MPa and compressive strength of 60.2 MPa.In solution of sodium sulfate of 3% and magnesium sulfate of 3%,the flexural and compressive strength of geoploymer mortar increase both after 28-day immersion.In sulfate environment with 7% gypsum,the cumulative expansion ratio of geopolymer is rather less than that of moderate sulfate resistance Portland cement.The weight loss and strength deterioraion of geopolymer mortar is also less than that of aluminate cement and early stregth sulphoaluminate ecment when exposed to solution of low concentration acid.According to above performance,the geopolymer synthesized from calcined ore-dressing tailings has excellent resistance to sulfate salt and a measure of resistance to low concentration acid." @default.
- W2347779647 created "2016-06-24" @default.
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- W2347779647 date "2010-01-01" @default.
- W2347779647 modified "2023-09-26" @default.
- W2347779647 title "Study on Low Alkali Content and High Strength Geopolymer" @default.
- W2347779647 hasPublicationYear "2010" @default.
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