Synthesis and hydration behavior of calcium zirconium aluminate (Ca7ZrAl6O18) cement

被引：13

作者：

Kang, Eun-Hee ^{[1
]}

Yoo, Jun-Sang ^{[2
]}

Kim, Bo-Hye ^{[1
]}

Choi, Sung-Woo ^{[1
]}

Hong, Seong-Hyeon ^{[1
]}

机构：

[1] Seoul Natl Univ, Res Inst Adv Mat, Dept Mat Sci & Engn, Seoul 151744, South Korea

[2] Seoul Natl Univ, Sch Dent, Dept Oral & Maxillofacial Surg, Seoul 110749, South Korea

来源：

CEMENT AND CONCRETE RESEARCH | 2014年 / 56卷

基金：

新加坡国家研究基金会;

关键词：

Calcium zirconium aluminate; Calcium aluminate cement; Hydration; Microstructure; PORTLAND-CEMENT; RADIOPACITY; STABILITY; PHASE;

D O I：

10.1016/j.cemconres.2013.11.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Calcium zirconium aluminate (Ca2ZrAl6O18) cements were prepared by solid state reaction and polymeric precursor methods, and their phase evolution, morphology, and hydration behavior were investigated. In polymeric precursor method, a nearly single phase Ca2ZrAl6O18 was obtained at relatively lower temperature (1200 degrees C) whereas in solid state reaction, a small amount of CaZrO3 coexisted with Ca2ZrAl6O18 even at higher temperature (1400 degrees C). Unexpectedly, Ca2ZrAl6O18 synthesized by polymeric precursor process was the large-sized and rough-shaped powder. The planetary ball milling was employed to control the particle size and shape. The hydration behavior of Ca2ZrAl6O18 was similar to that of Ca3Al2O6 (C3A), but the hydration products were Ca3Al2O6 center dot 6H(2)O (C3AH6) and several intermediate products. Thus, Zr (or ZrO2) stabilized the intermediate hydration products of C3A. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：106 / 111

页数：6

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