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Pb对水泥熟料矿物烧成、组分的影响及其固化行为研究

Keywords: Pb,水泥熟料,易烧性

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Abstract:

以空白生料为基准,分别掺入0.5%、1.0%和2.0%的Pb试剂,分别在1250、1300、1350、1400和1450℃烧成熟料,并利用化学分析、XRD、SEM和SEM+EDS等方法对熟料进行检测分析。结果表明,在相同Pb掺量(分别为0.5%、1.0%和2.0%)下,随煅烧温度在1250~1450℃的逐渐升高,烧成效果逐渐变好。较低掺量时,Pb可促使液相提前出现,增加液相量,降低液相粘度,对生料易烧性有一定程度的改善作用;掺量过高(达到2.0%时),对熟料易烧性不利。Pb易富集固溶于A矿中。

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