离子掺杂对钙质膨胀剂熟料性能的影响

材料导报

2021, Vol. 35

Issue (z2): 259-261

无机非金属及其复合材料

离子掺杂对钙质膨胀剂熟料性能的影响

杨泽波¹, 辜振睿², 王海龙²

1 武汉源锦建材科技有限公司,武汉 430083
2 武汉三源特种建材有限责任公司,武汉 430083

Effect of Ion Doping on the Properties of Calcium Expanding Agent Clinker

YANG Zebo¹, GU Zhenrui², WANG Hailong²

1 Wuhan Ujoin Building Material Technolgy Co., Ltd., Wuhan 430083, China
2 Wuhan Sanyuan Special Building Materials Co., Ltd., Wuhan 430083, China

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摘要研究了MgO、Al₂O₃和CuO三种金属离子氧化物对氧化钙类膨胀剂熟料性能的影响,与未外掺金属离子氧化物相比,分别外掺3%金属离子氧化物后,CuO抑制了膨胀剂熟料反应速率,MgO对膨胀剂熟料反应速率基本无影响,Al₂O₃加速了膨胀剂熟料的反应速率。采用化学分析、XRD、微量热法对膨胀剂熟料的f-CaO含量、矿物组成及水化历程进行了分析,结果表明,外掺CuO会抑制生料中CaCO₃分解为f-CaO,导致膨胀剂熟料反应速率较低;外掺MgO、Al₂O₃主要在膨胀剂熟料体系中发生离子置换反应,因Al³⁺与Ca²⁺价位不同使体系内部产生缺陷,提高了其膨胀反应速率。

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关键词: 膨胀剂金属离子氧化物膨胀反应速率

Abstract: The effects of three metal ion oxides of MgO, Al₂O₃ and CuO on the properties of calcium oxide expander clinker were studied. Compared with the non-doped metal ion oxides, CuO inhibited the performance of 3% metal ion oxides. Expansion agent clinker reaction rate, MgO basically has no effect on the expansion agent clinker reaction rate, and Al₂O₃ accelerates the expansion agent clinker reaction rate. Chemical analysis, XRD, and microcalorimetry were used to analyze the f-CaO content, mineral composition and hydration process of the expansion agent clinker. The results showed that the addition of CuO would inhibit the decomposition of CaCO₃ in the raw meal into f-CaO, resulting in Expansion agent clinker has a low reaction rate; the addition of MgO and Al₂O₃ mainly occurs in the expansion agent clinker system, and the difference in Al³⁺ and Ca²⁺ valence causes defects in the system, which increases the expansion reaction rate.

Key words: expansion agent metal ion oxide expansion reaction rate

发布日期: 2021-12-09

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通讯作者: 1296885898@qq.com

作者简介: 杨泽波,2018年6月毕业于武汉理工大学,获得工学硕士学位。同年至今在武汉源锦建材科技有限公司担任研发工程师,主要从事膨胀剂和混凝土用矿物掺合料的研究和开发。

引用本文:

杨泽波, 辜振睿, 王海龙. 离子掺杂对钙质膨胀剂熟料性能的影响[J]. 材料导报, 2021, 35(z2): 259-261.
YANG Zebo, GU Zhenrui, WANG Hailong. Effect of Ion Doping on the Properties of Calcium Expanding Agent Clinker. Materials Reports, 2021, 35(z2): 259-261.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2021/V35/Iz2/259

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