Autoclaved performance of solid waste containing glass phase

作者：Zhang, Zhi-Jie^*; Tang, Zheng-Yu; Ke, Chang-Jun

来源：Journal of South China University of Technology(Natural Science Edition), 2009, 37(12): 32-36.

• Autoclaving
• Combined water
• Hydrothermal reactivity
• Infrared spectrum
• Negative correlation
• Positive correlations
• Saturated vapor pressure
• Stretching vibrations

This paper investigates the autoclaved performance of the systems combining lime and such solid waste as fly ash, waste glass and slag by means of FT-IR, XRD and SEM. The results show that (1) at a saturated vapor pressure of 1.2MPa, both the hydrothermal reactivity and the amount of combined water of the autoclaved product have an obvious negative correlation with the Si-O stretching vibration frequency; (2) the compressive strength of the autoclaved product containing fly ash or waste glass also has a negative correlation with the Si-O stretching vibration frequency; and (3) different from the other two products, the autoclaved product containing slag has a positive correlation with the Si-O stretching vibration frequency in terms of compressive strength, because there exists a large amount of hydrogarnet due to the reaction of activated Al in the slag with the lime.

• 出版日期2009-12
• 单位华南理工大学