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Analysis on Calcination of cementitous powder of waste concrete for raw cement

机译：原料水泥废物混凝土泥浆粉煅烧分析

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摘要

The purpose of this study is to determine whether cementitous powder of waste concrete which is separated from waste concrete can be used as alternative raw material for limestone. Chemical composition of cementitous powder of waste concrete was actually analyzed and the experiment to measure the recovery of hydration of waste cementitous powder model was performed. As a result, hydration was recovered to the level at which it can be used as alternative raw material for limestone, but less than 10 % can be used due to mix of fine aggregate in less than 150μm which cannot be separated from cementitous powder. Therefore, development of technology to efficiently separate cementitous powder of fine aggregate is required to have the alternative material for limestone and effect for reduction of greenhouse gas.
机译：本研究的目的是确定与废物混凝土分离的废物混凝土的水泥粉是否可以用作石灰石的替代原料。 实际分析了废物混凝土碳泥粉粉的化学成分，进行了测量废碳泥粉粉末模型水合恢复的实验。 结果，回收水合在其用作石灰石的替代原料的水平，但由于小于150μm的细聚集体的混合物，可以使用小于10％的水平，其不能与碳酸丝粉末分离。 因此，需要开发技术以有效地分离细聚集颗粒的碳酸覆粉末，以具有用于降低温室气体的石灰石和效果的替代材料。

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