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

被引：2

作者：

Hee, Kwon Eun ^{[1
]}

Jun, Lee Young ^{[1
]}

Hwan, Cho Gyu ^{[1
]}

Park, Dong Cheon ^{[2
]}

机构：

[1] Korea Maritime Univ, State Key Lab Architecture & Ocean Space Marine S, Pusan, South Korea

[2] Marine Sci & Technol, Architecture & Ocean Space, Busan, South Korea

来源：

ADVANCES IN CIVIL ENGINEERING AND BUILDING MATERIALS III | 2014年 / 831卷

关键词：

Cementitous powder of waste concrete; Recycled cement; Powder of fine aggregate;

D O I：

10.4028/www.scientific.net/AMR.831.267

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

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 150 mu m 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.

引用

页码：267 / +

页数：2