期刊
CERAMICS INTERNATIONAL
卷 44, 期 6, 页码 7300-7304出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.01.042
关键词
Ready-mix alkali activated cement; Concrete waste; Thermal activation; Sodium hydroxide; Compressive strength
The goal of this study is to produce an environmentally, and user friendly ready-mix alkali activated cement (RM-AAC) by thermal activation of concrete waste (CW) in the presence of sodium hydroxide (NaOH). Two major compositional factors, which play an important role in the performance of RM-AAC, i.e. temperature and NaOH percentage, were investigated. The CW showed high stability under thermal treatment up to 1200 degrees C; meanwhile it can be converted to distorted structure with high amorphicity in the presence of appropriate NaOH content. RM-AAC powder can react with water, forming hardened material with an acceptable compressive strength. Due to the white color of RM-AAC powder, it can be beneficially used in prestige construction projects and decorative works.
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