...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Iranian Journal of Science and Technology, Transactions of Civil Engineering >Physical and Mechanical Properties of Concrete with Locally Produced Metakaolin and Micro-silica as Supplementary Cementitious Material
【24h】

Physical and Mechanical Properties of Concrete with Locally Produced Metakaolin and Micro-silica as Supplementary Cementitious Material

机译：用局部生产的甲肾上腺素和微二氧化硅作为辅助水泥材料的物理和力学性能

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

Malaysia is among the countries that have abundant reserves of raw material to be used to form metakaolin (MK). Only a few studies are available in the literature, which examines the potential of the development of metakaolin through calcination and its use as supplementary cementitious material (SCM). The use of MK as SCM is essential to utilise the local resources and to reduce the carbon footprint and embodied energy in the use of cement. Thus, MK developed at laboratory scale, produced through using local source, is compared with the commercially available micro-silica by investigating their properties in this paper. The concrete made of MK and micro-silica was tested under compression, split tension and bending. The comparison of the phase difference between MK and micro-silica had carried out through X-ray diffraction pattern. Besides, an interfacial transition zone of concrete made of MK and micro-silica had observed through field emission scanning electron microscopy. A total of three mixes of concrete had prepared, out of which one was without cement replacement and served as control mix. The remaining two mixes were 10% cement replacement with micro-silica and MK. The results showed that MK has high reactivity with portlandite in concrete due to its irregular structure and the amorphous phase. The compressive strength was 4% higher with MK as compared to micro-silica at an early age. MK concrete displayed a higher split tensile strength of approximately 14% and 35% and a higher load-carrying capacity of approximately 15% compared to micro-silica and competitive with control concrete at ages 7-90 days.
机译：马来西亚是拥有储备储备的国家之一，用于形成甲曲蛋白（MK）。文献中只有几项研究，这检查了通过煅烧和用作补充水泥材料（SCM）的钙黄素开发的潜力。 MK作为SCM的使用对于利用本地资源至关重要，并降低碳足迹和在使用水泥中实施能量。因此，通过使用本地来源产生的实验室规模的MK通过在本文中研究其性质，将通过使用局部来源产生的通过使用局部来源。在压缩，分裂张力和弯曲下测试由MK和微二氧化硅制成的混凝土。通过X射线衍射图案进行MK和微二氧化硅之间的相位差的比较。此外，通过现场发射扫描电子显微镜观察由MK和微二氧化硅制成的混凝土的界面过渡区。共制备了三种混凝土，其中一部分是没有水泥更换的，并且用作控制混合物。剩余的两种混合物用微二氧化硅和MK为10％水泥替代。结果表明，由于其不规则结构和无定形相，MK与波特兰石具有高反应性。与早期微二氧化硅相比，抗压强度较高4％。与微二氧化硅相比，MK混凝土呈现出约14％和35％，较高的载荷容量约为15％，并在7-90天的竞争中对照混凝土竞争。

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