The Efficiency of Recycling Expired Cement Waste in Cement Manufacturing: a Sustainable Construction Material

被引：0

作者：

Meddah A. ^{[1
]}

Chikouche M.A. ^{[1
]}

Yahia M. ^{[1
]}

Deghfel M. ^{[1
]}

Beddar M. ^{[1
]}

机构：

[1] LMMS, Civil Engineering Department, University Mohamed Boudiaf of M’sila, P.O. Box 166, M’sila, Ichbilia

来源：

Circular Economy and Sustainability | 2022年 / 2卷 / 3期

关键词：

Cementitious materials; Diluting agent; Eco-cement; Expired cement;

D O I：

10.1007/s43615-022-00161-1

中图分类号：

学科分类号：

摘要：

Reusing expired cement (EC) in cement manufacturing is an alternative way for managing such industrial waste, so this process contributes to preserving the environment and reducing the need for raw materials which creates an innovative solution in circular economy strategies as well as producing a sustainable material. The purpose of this study is to investigate the possibility of using EC as mineral additives for the manufacture of new cement. The different formulations of cements are the results of CEMI subtraction up to 35% by weight with the EC. These modified cements have passed the same tests as a characterization of a CEMII. The obtained results show that EC changes the characteristics of cementitious materials (anhydrous, paste, and mortar). The new cement produced fulfilled the requirements in terms of chemical characteristics. In addition, the decrease in strength caused by EC incorporation is in accordance with standards. It can be stated that EC plays the role of a diluting agent in the new cement. Environmentally, it may be more efficient to use EC as an ecofriendly additive material. © 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.

引用

页码：1213 / 1224

页数：11

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