木材生物质灰分储存对水泥复合材料性能的影响

察列 维奇, 尼娜 ·乌
克罗地亚土木工程学院

摘要

由于木质生物质的灰烬大多被填埋，最近的研究集中在寻找其作为建筑业潜在的新原料的经济和环境附加
值。然而，为了使木灰在建筑业中得到工业化的使用，必须确定适当储存的策略。适当储存WBA对于确保应用于水
泥基复合材料的质量控制是很重要的。这项工作调查了从克罗地亚五个不同的发电厂收集的木质生物质灰（WBA）
的老化及其对水泥基复合材料性能的影响。本文使用热重分析（TGA）、粉末 X射线衍射（XRD）、等温量热法以及
初凝和终凝时间对WBA和水泥浆在不同的老化时间（最长一年）进行了研究。结果表明，WBA在封闭和开放容器
中的储存分别导致了主要是游离石灰和过氧化物的碳化和水化，这影响了WBA水泥浆的反应性和凝结时间。

关键词

木质生物质灰；水泥基材料；水泥部分替代；老化；水化；碳化

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