Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 157, Issue -, Pages 172-181Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.09.068
Keywords
Reactive MgO; Recycling; Reuse; Compressive strength; Thermal decomposition
Categories
Funding
- Singapore MOE Academic Research Fund Tier 1 [RG 113/14]
Ask authors/readers for more resources
This study investigated the recycling potential of carbonated reactive MgO cement (RMC)-based concrete systems. Calcination conditions controlled the performance of recycled samples, which were fully decomposed at 700 degrees C. Recycled samples demonstrated 15-20% lower strengths than original samples, attributed to changes in MgO reactivity, aggregate properties and interaction between aggregates cement paste. Robustness of the recycling process was demonstrated via five repetitive calcination cycles applied on a single batch. Successful separation of aggregates from the surrounding cement paste before the recycling process could resolve issues associated with performance and lower the total energy requirement by only subjecting the cement paste to calcination. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available