[1]郭丽萍,孙伟,郑克仁,等.磨细矿渣和粉煤灰掺量对混凝土弯曲疲劳性能的影响[J].东南大学学报(自然科学版),2006,36(1):124-128.[doi:10.3969/j.issn.1001-0505.2006.01.025]
 Guo Liping,Sun Wei,Zheng Keren,et al.Influence of dosages of ground granulated blast-furnace slag and fly ash on flexural fatigue performance of concrete[J].Journal of Southeast University (Natural Science Edition),2006,36(1):124-128.[doi:10.3969/j.issn.1001-0505.2006.01.025]
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磨细矿渣和粉煤灰掺量对混凝土弯曲疲劳性能的影响()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第1期
页码:
124-128
栏目:
材料科学与工程
出版日期:
2006-01-20

文章信息/Info

Title:
Influence of dosages of ground granulated blast-furnace slag and fly ash on flexural fatigue performance of concrete
作者:
郭丽萍 孙伟 郑克仁 陈恒健 刘博
东南大学材料科学与工程系, 南京 210096
Author(s):
Guo Liping Sun Wei Zheng Keren Chen Hengjian Liu Bo
Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
弯曲疲劳 磨细矿渣 粉煤灰 最适宜掺量
Keywords:
flexural fatigue ground granulated blast-furnace slag fly ash optimal proportion
分类号:
TU528
DOI:
10.3969/j.issn.1001-0505.2006.01.025
摘要:
将磨细矿渣和粉煤灰分别等量取代水泥得到的3组磨细矿渣混凝土和2组粉煤灰混凝土进行了弯曲疲劳试验,与基准混凝土的疲劳性能进行了对比.并由差热-热重试验和恒温箱干燥-高温炉灼烧法,分别测得了Ca(OH)2质量分数和非蒸发水质量分数随混凝土中磨细矿渣或粉煤灰掺量的变化规律.结果表明,对于养护龄期为90 d的C50混凝土,当S95级磨细矿渣或Ⅰ级粉煤灰等量取代水泥质量的30%时,混凝土的弯曲疲劳性能最佳.
Abstract:
The flexural fatigue experiments of concretes containing different proportions of GGBS(ground granulated blast-furnace slag)or fly ash were carried out. In order to analyze and interpret the results of flexural fatigue tests, differential scanning calorimetry-thermal gravimetric analysis(DSC-TGA)and an ignition method with an advance dryness in stove were also completed. The mass fractions of Ca(OH)2and non-evaporable water referred to the original mass of sample were obtained from these methods. According to the results of flexural fatigue and thermal analysis, it is shown that the concrete containing 30% mass fraction of GGBS or fly ash equal-substituted for cement at age of 90 d has the superlative flexural fatigue performance.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金重点资助项目(59938170).
作者简介: 郭丽萍(1979—),女,博士生; 孙伟(联系人),女,教授,博士生导师, 中国工程院院士,sunwei @seu.edu.cn.
更新日期/Last Update: 2006-01-20