Fines extracted from recycled concrete as alternative raw material for Portland cement clinker production
Fines extracted from recycled concrete as alternative raw material for Portland cement clinker production
复制标题
DOI：
10.1016/j.cemconcomp.2015.01.003
复制
发表时间：
2015-04
影响因子：
10.5
通讯作者：
J. Schoon;K. Buysser;I. Driessche;N. Belie
中科院分区：
文献类型：
--
作者：
J. Schoon;K. Buysser;I. Driessche;N. Belie
本文旨在研究利用再生骨料生产产生的细粉作为波特兰熟料窑的替代原料，并列举了可能的局限性。使用不同的技术装置将这些细粒从再生骨料中分离出来。研究了生成的细粒馏分粒度分布与化学成分的关系，以及最终填料（<63 μm）含量[wt%]与处理后砂馏分需水量的关系。为了最大限度地提高熟料窑中的细粒组分作为原料，进行了数值模拟，并以此为基础生产了实验熟料。对最终的熟料进行了充分的分析，并对可能的矿物学影响进行了评价。
This paper aims to examine the use of fines generated out of recycled aggregates production as an alternative raw material for Portland clinker kilns with enumeration of possible limitations. Different technical set-ups were used to separate these fines from the recycled aggregates. The relationship between the particle size distribution of the generated fines fraction and their chemical composition as well as the relationship between the final filler (<63 μm) content [wt%] and the water demand of the treated sand fraction were investigated. Numerical simulations were carried out to maximise the fines fractions as raw materials in clinker kilns based on which experimental clinkers were produced. The final clinkers were fully analysed and evaluated on possible mineralogical influences.