不同温度煅烧凹凸棒土的水化活性

材料导报

2021, Vol. 35

Issue (z2): 248-253

无机非金属及其复合材料

不同温度煅烧凹凸棒土的水化活性

严金生¹, 周洲¹, 张庆年¹, 施韬^2,3, 周威杰², 胡卓君³

1 崇左南方水泥有限公司,崇左 532200
2 浙江大学材料科学与工程学院,杭州 310027
3 浙江工业大学土木工程学院,杭州 310023

Hydration Activity of Attapulgite Calcined at Different Temperatures

YAN Jinsheng¹, ZHOU Zhou¹, ZHANG Qingnian¹, SHI Tao^2,3, ZHOU Weijie², HU Zhuojun³

1 Chongzuo South Cement Co., Ltd., Chongzuo 532200, China
2 School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
3 School of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China

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摘要研究了煅烧温度(200~800 ℃)对凹凸棒土外观、矿物组成和活性SiO₂含量的影响,煅烧前后凹凸棒土对水泥浆体化学结合水量、反应程度和水泥胶砂抗折、抗压及劈裂强度等力学性能的影响。结果表明:煅烧温度改变了凹凸棒土的矿物组成,从而影响了水泥基材料的水化活性,经500 ℃煅烧的凹凸棒土对水泥基材料水化活性的提高效果最佳。

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关键词: 凹凸棒土煅烧温度活性SiO₂ 水化活性劈裂抗拉强度

Abstract: The effects of calcination temperature (200~800 ℃) on the appearance, mineral composition and active SiO₂ content of attapulgite were studied. The effects of calcination temperature on chemical bonding water, reaction degree, flexural, compressive and splitting strength of cement mortar were also studied. The results show that the calcination temperature changes the mineral composition of attapulgite, which affects the hydration activity of cement-based materials. The hydration activity of cement-based materials is best improved by calcining attapulgite at 500 ℃.

Key words: attapulgite calcination temperature active SiO₂ hydration activity splitting tensile strength

发布日期: 2021-12-09

ZTFLH:

TU528

基金资助: 国家自然科学基金(52078460; 51778582)

通讯作者: shitao@zjut.edu.cn

作者简介: 严金生,崇左南方水泥有限公司副总工程师、研发中心主任。负责企业技术创新,以及与浙江大学、广西大学的产学研合作,主持或参与“高性能水泥基材料及应用”、“钙基材料及应用”、“水泥窑协同处置固废”等项目研发,申报国家发明专利10余项,其中授权专利7项,多项成果得到实际应用。
施韬,浙江工业大学教授,博士研究生导师。浙江工业大学土木工程材料研究所所长,土木工程学院党委委员,浙江省151人才工程第三层次。2007年于同济大学获工学博士学位。主持和参与各类科研项目30余项。在国内外学术期刊上发表论文60余篇并担任多个学术期刊的审稿人。先后赴美国西北大学、日本九州大学、荷兰代尔夫特理工大学进行访学研究。现任中国绿色建筑与节能专业委员会委员,中国建筑学会建筑技术分会委员,中国硅酸盐学会房材分会干混砂浆专业委员会委员,浙江省绿建协绿色建材分会副会长,杭州市硅酸盐学会理事。

引用本文:

严金生, 周洲, 张庆年, 施韬, 周威杰, 胡卓君. 不同温度煅烧凹凸棒土的水化活性[J]. 材料导报, 2021, 35(z2): 248-253.
YAN Jinsheng, ZHOU Zhou, ZHANG Qingnian, SHI Tao, ZHOU Weijie, HU Zhuojun. Hydration Activity of Attapulgite Calcined at Different Temperatures. Materials Reports, 2021, 35(z2): 248-253.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2021/V35/Iz2/248

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