[1]戎志丹,王瑞,林发彬.纳米超高性能水泥基复合材料微结构演变规律[J].深圳大学学报理工版,2013,30(No.6(551-660)):611-616.[doi:10.3724/SP.J.1249.2013.06611]
 Rong Zhidan,Wang Rui,and Lin Fabin.Study on the microstructure evolution of nano-ultra high performance cementitious composites[J].Journal of Shenzhen University Science and Engineering,2013,30(No.6(551-660)):611-616.[doi:10.3724/SP.J.1249.2013.06611]
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纳米超高性能水泥基复合材料微结构演变规律()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第30卷
期数:
2013年No.6(551-660)
页码:
611-616
栏目:
材料科学
出版日期:
2013-09-30

文章信息/Info

Title:
Study on the microstructure evolution of nano-ultra high performance cementitious composites
文章编号:
20130610
作者:
戎志丹王瑞林发彬
1) 东南大学材料科学与工程学院,江苏省土木工程材料重点实验室, 南京 211189
2) 巴斯夫化学建材(中国)有限公司,上海 200137
Author(s):
Rong Zhidan Wang Rui and Lin Fabin
1) School of Materials Science and Engineering, Southeast University, Jiangsu Key Laboratory of Construction Materials, Nanjing 211189, P.R.China
2) BASF Construction Chemicals(China) Co Ltd, Shanghai 200137, P.R.China
关键词:
土木工程材料纳米二氧化硅 反应活性超高性能水泥基复合材料 微结构孔隙率
Keywords:
civil engineering materials nano-SiO2 reactivity ultra high performance of cementitious composite microstructure porosity
分类号:
TU 528
DOI:
10.3724/SP.J.1249.2013.06611
文献标志码:
A
摘要:
应用多种微观分析测试手段,研究掺加纳米SiO2的超高性能水泥基复合材料水化进程及微结构.结果表明,由于纳米SiO2的高反应活性,促进了早期水泥水化的进程,纳米SiO2与水泥水化产物Ca(OH)2反应生成C—S—H凝胶;随着纳米SiO2质量分数(≤5%)的提高及养护龄期的延长,复合材料的孔隙率不断降低,孔径得到细化,且反应的纳米SiO2还起到颗粒增强的作用,使复合材料整体呈现出非常致密的微观结构,在宏观上表现出优异的力学性能.
Abstract:
The effects of nano-SiO2 on the hydration process and microstructure of ultra high performance of cementitious composite(UHPCC) were investigated via different analysis testing methods. The results indicate that the early hydration process of UHPCC is accelerated by adding of nano-SiO2. The porosity is reduced and the pore size is scaled as the content of nano-SiO2(≤5%)and the curing time increased. The reacted nano-SiO2 particles also strengthen the composites, and thus the microstructure of UHPCC is very compact. As the experiment shows, the UHPCC has excellent mechanical performance.

参考文献/References:

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相似文献/References:

[1]周立民,王冲,李东林,等.纳米SiO2对聚合物改性水泥基材料性能的影响[J].深圳大学学报理工版,2014,31(No.3(221-330)):227.[doi:10.3724/SP.J.1249.2014.03227]
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备注/Memo

备注/Memo:
Received:2013-06-11;Accepted:2013-09-20
Foundation:Natural Science Foundation of Jiangsu Province (BK2012754); Open Foundation of State Key Laboratory of High Performance Civil Engineering Materials (2012CEM007)
Corresponding author:Ph D Rong Zhidan. E-mail:rongzhidan@tom.com
Citation:Rong Zhidan, Wang Rui, Lin Fabin. Study on the microstructure evolution of nano-ultra high performance cementitious composites[J]. Journal of Shenzhen University Science and Engineering, 2013, 30(6): 611-616.(in Chinese)
基金项目:江苏省自然科学基金资助项目(BK2012754);高性能土木工程材料国家重点实验室开放基金资助项目(2012CEM007)
作者简介:戎志丹(1981-),男(汉族),江苏省南京市人,东南大学讲师、博士. E-mail:rongzhidan@tom.com
引文:戎志丹,王瑞,林发彬. 纳米超高性能水泥基复合材料微结构演变研究[J]. 深圳大学学报理工版,2013,30(6):611-616.
更新日期/Last Update: 2013-11-20