期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 159, 期 -, 页码 642-651出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.08.158
关键词
Controlled low-strength material; Circulating fluidized bed combustion ash; Alkali activation; Backfill; Engineering property
资金
- National Research Foundation of Korea [NRF-2017R1A1A1A05001175]
- Energy Technology Development Program - Ministry of Trade Industrial and Energy of the Korean Government [2013T100100021]
- Research Foundation of Chosun University in South Korea
The present study investigates the fresh and hardened properties of controlled low-strength materials (CLSM) utilizing circulating fluidized bed combustion (CFBC) ashes, activated with cement or sodium carbonate. Engineering properties such as flowability, settlement, setting behavior, compressive strength, and hydration characteristics were evaluated. The results provided new insights, demonstrating that CFBC ashes can be effectively utilized in producing CLSM with suitable material design as the CLSM could achieve the required performances specified in the ACI 299R-13. The CLSM mixtures showed a self-destruction characteristic due to the formation of ettringite, while it showed stable strength development in a dry condition. (C) 2017 Elsevier Ltd. All rights reserved.
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