• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Magazine of Concrete Research >Evaluation of the fresh and hardened state properties of low cement content systems
【24h】

Evaluation of the fresh and hardened state properties of low cement content systems

机译：低水泥含量系统的新鲜和硬化状态性能评估

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

The production of Portland cement (PC) clinker is responsible for about 6.5% of total carbon dioxide (CO2) emissions worldwide. Therefore, recent studies have focused on alternatives to decrease PC content and thus reduce the carbon footprint of concrete construction. Although guidelines suggest a minimum cement content of approximately 250-300 kg/m(3) depending on the type of the structure or structural member, there is currently a lack of information on the impact of the amount of cement on the overall behaviour of concrete. This work evaluates the influence of PC (ASTM C150 Type III) content on the fresh (i.e. rheological behaviour) and hardened (i.e. compressive strength, dynamic and static modulus of elasticity, porosity and permeability) properties of concrete mixtures produced with low to moderate (54, 159 and 260 kg/m(3)) PC amounts. Results show that it is possible to produce eco-efficient concrete without compromising the fresh and hardened states of the material. However, the durability and longterm properties of low cement content systems should be further appraised.
机译：波特兰水泥（PC）熟料的生产约占全球二氧化碳（CO2）总排放量的6.5％。因此，最近的研究集中在减少PC含量从而减少混凝土结构碳足迹的替代方法上。尽管指南建议根据结构或结构构件的类型，最低水泥含量约为250-300 kg / m（3），但目前尚缺乏有关水泥用量对混凝土整体性能的影响的信息。这项工作评估了PC（ASTM C150 Type III）含量对以低至中等强度（例如，流变行为）和硬化后的混凝土混合物的刚度（即抗压强度，动态和静态弹性模量，孔隙率和渗透性）的影响。 54、159和260 kg / m（3）PC数量。结果表明，可以生产生态高效的混凝土而不会损害材料的新鲜状态和硬化状态。但是，应进一步评估低水泥含量体系的耐久性和长期性能。

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