华南理工大学学报（自然科学版）
華南理工大學學報（自然科學版）
화남리공대학학보（자연과학판）
JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2009年
12期
32-36
,共5页
固体废物%蒸压%红外光谱%X射线衍射%扫描电子显微镜%水热反应能力
固體廢物%蒸壓%紅外光譜%X射線衍射%掃描電子顯微鏡%水熱反應能力
고체폐물%증압%홍외광보%X사선연사%소묘전자현미경%수열반응능력
solid waste%autoclaving%infrared spectrum%X-ray diffraction%scanning electron microscope%hydrothermal reactivity
通过傅里叶变换红外光谱分析、X射线衍射分析、扫描电镜分析等方法研究了粉煤灰、废玻璃和矿渣等固体废弃物-石灰体系的蒸压反应特性.结果表明:1.2MPa饱和蒸汽压下,固体废弃物的 Si-O 伸缩振动频率越低,其蒸压样品的结合水量越大,水热反应能力越强;粉煤灰、废玻璃的 Si-O 伸缩振动频率越低,其蒸压样品的强度越高;矿渣蒸压样品的强度与矿渣的 Si-O 伸缩振动频率表现出不同于其他两种固体废弃物的规律,这主要是因为矿渣中的活性铝参与了反应,形成大量的水石榴石,导致其蒸压样品的强度下降.
通過傅裏葉變換紅外光譜分析、X射線衍射分析、掃描電鏡分析等方法研究瞭粉煤灰、廢玻璃和礦渣等固體廢棄物-石灰體繫的蒸壓反應特性.結果錶明:1.2MPa飽和蒸汽壓下,固體廢棄物的 Si-O 伸縮振動頻率越低,其蒸壓樣品的結閤水量越大,水熱反應能力越彊;粉煤灰、廢玻璃的 Si-O 伸縮振動頻率越低,其蒸壓樣品的彊度越高;礦渣蒸壓樣品的彊度與礦渣的 Si-O 伸縮振動頻率錶現齣不同于其他兩種固體廢棄物的規律,這主要是因為礦渣中的活性鋁參與瞭反應,形成大量的水石榴石,導緻其蒸壓樣品的彊度下降.
통과부리협변환홍외광보분석、X사선연사분석、소묘전경분석등방법연구료분매회、폐파리화광사등고체폐기물-석회체계적증압반응특성.결과표명:1.2MPa포화증기압하,고체폐기물적 Si-O 신축진동빈솔월저,기증압양품적결합수량월대,수열반응능력월강;분매회、폐파리적 Si-O 신축진동빈솔월저,기증압양품적강도월고;광사증압양품적강도여광사적 Si-O 신축진동빈솔표현출불동우기타량충고체폐기물적규률,저주요시인위광사중적활성려삼여료반응,형성대량적수석류석,도치기증압양품적강도하강.
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.
