生物质和煤粉灰作为水泥替代材料 及其对混凝土水化和碳化的影响

阿吉 亚尔, 特 谢拉, 方 格罗
葡萄牙土木工程系

摘要

世界各地的建筑部门在混凝土生产中一直使用辅助材料，如粉煤灰。现在，研究员已经研究了几种子产品
或废物，以便将其纳入建筑材料中，其中一种废物就是生物质粉煤灰。然而，使用大量的这些材料有一些缺点，其
中之一就是碳化。为了理解这样的现象，研究添加物和水泥水化之间的相互作用是很重要的。本文通过热重分析和
X射线衍射分析以及加速碳化试验，重点研究了含有生物质粉煤灰和 /或煤粉煤灰的水泥浆的水化和碳化。生物量粉
煤灰呈现出与煤粉煤灰不同的化学和矿物成份。结果显示，将生物质粉煤灰纳入建筑材料中，它们具有与煤粉煤灰
相似的碳化行为。生物质粉煤灰似乎给混合物带来一些额外的碱性，这可能给建筑材料和灰烬管理带来好处。

关键词

生物质粉煤灰；粉煤灰；水化；碳化

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