The use of dolomite powder as a main constituent in blended cements

白云石粉作为混合水泥主要成分的用途

• 批准号: 327888239
• 负责人: Professor Dr.-Ing. Horst-Michael Ludwig
• 金额: --
• 依托单位: F. A. Finger-Institut für Baustoffkunde
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/327888239?language=en
• 关键词: use; dolomite; powder; main; constituent

The cement industry is continuously adapting its production to cements, which cause lower CO2-emissions. This is often achieved by a partial substitution of the cement clinker by limestone powder. The limestone quarries of many cement plants are covered by a thick layer of dolomitic limestone or dolomite. The material from this layer cannot be used for the production of cement. There exist no distinct technological reasons for the exclusion of dolomite powder as a main constituent in blended cements. The use of dolomite powder in blended cements could raise the sustainability of cement production. Aim of the project is thus, to achieve basic knowledge about the performance of blended cements containing dolomite powder. To achieve this, the impact of dolomite powder on cement properties, cement hydration and on the durability of concrete shall be investigated in detail.

水泥行业正在不断调整其生产以适应水泥，从而降低二氧化碳排放量。这通常通过用石灰石粉部分替代水泥熟料来实现。许多水泥厂的石灰石采石场都覆盖着一层厚厚的石灰石或白云石。该层的材料不能用于生产水泥。没有明确的技术原因将白云石粉排除在混合水泥的主要成分之外。白云石粉在混合水泥中的应用可提高水泥生产的可持续性。因此，该项目的目的是获得有关含白云石粉的混合水泥性能的基本知识。为此，应详细研究白云石粉对水泥性能、水泥水化以及对混凝土耐久性的影响。

项目成果

Frost‐Tausalz‐Angriff auf Beton

混凝土上的霜和除冰盐侵蚀

• DOI: 10.1002/best.201800096
• 发表时间: 2019
• 期刊: Beton‐ und Stahlbetonbau
• 作者: Müller;Ludwig;Ehrhardt
• 通讯作者: Ehrhardt