• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Testing and evaluation of advanced building materials >Study on Pore Structure Characterization of Concrete at Different Ages by Thermoporometry
【24h】

Study on Pore Structure Characterization of Concrete at Different Ages by Thermoporometry

机译：热孔法研究不同年龄混凝土的孔结构表征

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, pore structures and their changes of ordinary-strength concrete and high-strength concrete at different curing ages of 3,28,90 days were studied using thermoporometry, and the results were compared with those from MIP and NAD. The relationship between micro pores and porosity of concrete and its macroscopic properties was also studied. The results indicate that, compared to MIP, thermoporometry can characterize the features of pores with the diameter smaller than 100 nm in concrete accurately. The differences of macroscopic mechanical properties of concretes can be explained using the changes of their pore size distribution. After curing age of 28 days, the amount of pores with the diameter higher than 20 nm in high strength concrete changes little, but it decreases gradually in ordinary strength concrete. And pores with diameter smaller than 20 nm in concrete have little influence on the macroscopic mechanical property of concrete.
机译：本文采用热孔法研究了不同固化年龄的3,28,90天普通强度混凝土和高强度混凝土的孔结构及其变化，并将其与MIP和NAD的结果进行了比较。还研究了混凝土的微孔与孔隙率之间的关系及其宏观性能。结果表明，与MIP相比，热孔法可以准确表征混凝土中直径小于100 nm的孔的特征。混凝土的宏观力学性能的差异可以用其孔径分布的变化来解释。固化28天后，高强度混凝土中直径大于20 nm的孔的数量变化不大，而普通强度混凝土中的孔数量逐渐减少。混凝土中直径小于20 nm的孔对混凝土的宏观力学性能影响很小。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号