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用高岭土制备混凝土膨胀剂的初步研究 被引量:1

The Pilot Study on Preparation of Concrete Expanding Admixture by Kaolin
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摘要 通过对高岭土、石膏和氧化钙组成的净浆试体水化产物的SEM形貌观察,研究其膨胀组分的水化产物的形貌及其生成机理和影响因素。研究表明:早期水化产物以起膨胀作用的钙矾石为主,含少量C-S-H凝胶,两者生长速度快。水化1d时即生成大量针状钙矾石和C-S-H凝胶;2d时钙矾石呈棒状、条状或团簇结构,C-S-H凝胶出现少量网络状;3d后条状、棒状钙矾石变粗、体积增大,C-S-H凝胶小网络之间互相交错形成大网络结构。 The hydrates of kaolin, gypsum and lime was studied by SEM observation, and the development of expansion ingredient and rules was also studied. The experiment results showed that the main early-age hydrates are lots of ettringite and little C-S-H Gel, which grew fast. Much ettringite and C-S-H gel can be observed after one day, two days later the structure of ettringite became club-shaped, strip or clusters alike, there are little reticulate structure C-S-H gel, after three days club-shaped, strip or clusters alike became big, the small C-S-H gel intersected each other became more bigger reticulate structure.
出处 《非金属矿》 CAS CSCD 北大核心 2007年第3期34-36,共3页 Non-Metallic Mines
关键词 高岭土 膨胀组分 钙矾石 C-S-H凝胶 水化 显微结构 kaolin expansion ingredient ettringite C-S-H gel hydrates microstructure
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  • 1黄伯龄编著.矿物差热分析鉴定手册[M].北京:科学出版社,1989年12月..
  • 2陶维屏,中国高岭土矿床地质学,1984年,67页
  • 3DAVIDOVITS J. Mineral polymers and methods of making them[P]. U S Patent: 4349386, Sep 1982.
  • 4DAVIDOVITS J. Synthetic mineral polymer compound of the silicoaluminates family and preparation process [ P ]. U S Patent:4472199, Sep 1984.
  • 5PALOMO A,BLANCO-VARELA M T,GRANIZO M L, et al.Chemical stability of cementitious materials based on metakaolin [J]. Cem Concr Res, 1999,29:997- 1004.
  • 6XUA H, VAN DEVENTER J S J. The geopolymerisation of alumino- silicate minerals[J]. Int J Miner Process, 2000,59: 247 -266.
  • 7VANJAARSVELDJGS, VANDEVENTERJ SJ, LORENZEN L. The potential use of geopolymeric materials to immobilize toxic metals(Part Ⅰ ): Theory and applications[J]. Miner Eng,1997,10:659 - 669.
  • 8郑娟荣.碱-偏高岭土体系胶凝材料的形成机理及性能研究[R] 博士后研究报告[R].北京:清华大学,2003..
  • 9[苏]彼得罗相(В·И·Баушкинидр·) 主编,(苏)巴布什金,(苏)马特维耶夫 编著蒲心诚,曹建华.硅酸盐热力学[M]中国建筑工业出版社,1983.
  • 10石云兴,王泽云,吴东,张浩.钙矾石的形成条件与稳定性[J].混凝土,2000(8):52-54. 被引量:60

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