Preparation and characterization of press-formed fly ash cement incorporating soda residue

被引：31

作者：

Zhao, Xianhui ^{[1
]}

Liu, Chunyuan ^{[1
]}

Zuo, Liming ^{[2
]}

Zhu, Qin ^{[2
]}

Ma, Wang ^{[2
]}

Liu, Youcai ^{[2
]}

机构：

[1] Hebei Univ Technol, Sch Civil Engn & Transportat, Tianjin 300401, Peoples R China

[2] Hydrol Engn Geol Survey Inst Hebei Prov, Shijiazhuang 050021, Hebei, Peoples R China

来源：

MATERIALS LETTERS | 2020年 / 259卷

关键词：

Polymeric composites; Soda residue; Compressive strength; Gel product; Micro structure; FTIR; ACTIVATION;

D O I：

10.1016/j.matlet.2019.126852

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alkali-activated material, a new eco-friendly alternative to conventional cement binders, has been produced using alumino-silicate material and alkaline activator. Those alumino-silicate material can be formulated by adding natural minerals, waste and /or industrial by-products. This study investigates the mechanical and microstructural properties of alkali-activated cement synthesized from fly ash and soda residue activated by NaOH. The mineralogy phases, microstructure and product compositions were characterized by SEM-EDS, XRD and FTIR. The study reveals that product gels are identified as the coexistence of hydration and polymerization gels containing Ca and Na, which show glassy microstructures in X-ray patterns. The results provide experimental basis for the scientific utilization of SR to an industrial scale. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：4

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