| 双掺合料模袋混凝土的孔隙特征研究 |
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| 引用本文： | 唐加俊,邹春霞,薛慧君,牛德元,郑新,赵泉,武军.双掺合料模袋混凝土的孔隙特征研究[J].硅酸盐通报,2019,38(7):2274-2280. |
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| 作者姓名： | 唐加俊 邹春霞 薛慧君 牛德元 郑新 赵泉 武军 |
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| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018;西京学院行健书院,西安,710000;华北理工大学信息工程学院,唐山,063210;内蒙古河套灌区乌拉特灌域管理局,巴彦淖尔,014400 |
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| 基金项目： | 内蒙古自治区水利科学研究专项项目(NSK2016-S11) |
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| 摘 要： | 以大理石粉、硅粉、粉煤灰为矿物掺合料配制双矿物掺合料模袋混凝土,研究了不同矿物掺合种类及替代率的变化对模袋混凝土的力学性能影响,并采用核磁共振和气泡间距分析其孔隙变化特征,为探寻适合内蒙古河套灌区的模袋混凝土最优配合比方案奠定基础。结果表明,双掺粉煤灰和大理石粉替代率在20%时,力学性能最好。双掺粉煤灰和硅粉对于孔隙结构的改善明显优于双掺粉煤灰和大理石粉,渗透率降低了49.4%,束缚流体饱和度提高了2.587%,随着替代率的变化,双掺粉煤灰和硅粉的孔隙度下降了0.182%,渗透率下降了89.8%,束缚水饱和度提高了8.296%,气泡间距系数增大了0.075mm。将孔隙特征和力学性能对比发现,双掺合料模袋混凝土随着孔隙度下降,渗透率降低,束缚水饱和度增加,以及气泡间距系数增大,其强度逐渐升高。
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| 关 键 词： | 模袋混凝土 核磁共振 渗透率 束缚流体饱和度 气泡间距系数 |
Study on Pore Evolution Characteristics of Double-doped Molded Bag Concrete |
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| TANG Jia-jun,ZOU Chun-xia,XUE Hui-jun,NIU De-yuan,ZHENG Xin,ZHAO Quan,WU Jun.Study on Pore Evolution Characteristics of Double-doped Molded Bag Concrete[J].Bulletin of the Chinese Ceramic Society,2019,38(7):2274-2280. |
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| Authors: | TANG Jia-jun ZOU Chun-xia XUE Hui-jun NIU De-yuan ZHENG Xin ZHAO Quan WU Jun |
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| Affiliation: | (College of Water Conservancy and Civil Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China;Xingjian College,Xijing College,Xi'an 710000,China;School of Information Engineering,North China University of Technology,Tangshan 063210,China;Urad Irrigation District Management Bureau,Hetao Irrigation District,Inner Mongolia,Bayannaoer 014400,China) |
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| Abstract: | TANG Jia-jun;ZOU Chun-xia;XUE Hui-jun;NIU De-yuan;ZHENG Xin;ZHAO Quan;WU Jun(College of Water Conservancy and Civil Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China;Xingjian College,Xijing College,Xi'an 710000,China;School of Information Engineering,North China University of Technology,Tangshan 063210,China;Urad Irrigation District Management Bureau,Hetao Irrigation District,Inner Mongolia,Bayannaoer 014400,China) |
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| Keywords: | molded bag concrete nuclear magneticresonance permeability bound fluid saturation bubble spacing coefficient |
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