期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 131, 期 -, 页码 784-792出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.11.017
关键词
Lightweight aggregates; Rheology; Geopolymers; Mortar; Concrete
资金
- Finnish Funding Agency for Technology and Innovation (Tekes)
- Portuguese National Funding Agency for Science
- Research and Technology (FCT)
- National Center for Research and Development (BR)
- Renlund Foundation
Using industrial side streams as artificial aggregate precursors could increase waste utilization and save natural reserves. In this study, lightweight geopolymer aggregates were manufactured from fluidized bed combustion fly ash and mine tailings using high shear granulation and alkali activation. The results showed that geopolymer aggregates had physical properties comparable to commercial lightweight expanded clay aggregates (LECAs). Mortar and concrete prepared with geopolymer aggregates had higher mechanical strength, a higher dynamic modulus of elasticity, and higher density than concrete produced with LECAs, while the rheology and workability was the same. (C) 2016 Elsevier Ltd. All rights reserved.
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