以混凝土淤渣为主要原料制备了3种不同配比的玻璃陶瓷材料,应用X射线衍射和扫描电子显微镜技术探讨了混凝土淤渣玻璃陶瓷的析晶及显微组织特征.结果表明,在添加氟化物和FeS的混凝土淤渣玻璃中,析出晶体为镁黄长石(Ca2MgSi2O7)和少量的钙长石(CaAl2Si2O8).而当在混凝土淤渣玻璃中添加MgO及少量ZnO与MnO后,析出晶体主要为镁黄长石.提高混凝土淤渣玻璃中ZnO含量后,试样中析出相为硅灰石(CaSiO3)和少量锌黄长石(CaZnSi2O7).在不同混凝土淤渣掺杂量的玻璃中,通过调整热处理制度都可以使晶体整体析出.
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