Scholarlink

This chapter investigates the interfacial transition zones (ITZs) in modelled aggregate concrete (MAC) and modelled recycled aggregate concrete (MRAC) using a multi-technique approach. The research aims to address challenges in studying ITZs due to the complex aggregate surfaces by using cubic aggregates to simulate ITZs more effectively. The influence of waste glass powder (WGP) on ITZ properties is evaluated through techniques such as BSE-EDS, XRD, FTIR, nanoindentation, and nanoscratch tests. Results show that WGP reduces ITZ width, increases hydration products, and improves micromechanical properties by generating high Si/Ca ratio C-S-H gels. The study provides insights into the bonding mechanisms between aggregates and mortar, highlighting the potential of WGP to enhance ITZ performance in concrete.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Nano/Microscopic Investigation on the Interfacial Transition Zones in Modelled Aggregate Concrete

  • 章节

  • 发表日期：

    2025年

查看全文
  • Wengui Li,
  • Hanbing Zhao,
  • Kejin Wang

摘要

This chapter investigates the interfacial transition zones (ITZs) in modelled aggregate concrete (MAC) and modelled recycled aggregate concrete (MRAC) using a multi-technique approach. The research aims to address challenges in studying ITZs due to the complex aggregate surfaces by using cubic aggregates to simulate ITZs more effectively. The influence of waste glass powder (WGP) on ITZ properties is evaluated through techniques such as BSE-EDS, XRD, FTIR, nanoindentation, and nanoscratch tests. Results show that WGP reduces ITZ width, increases hydration products, and improves micromechanical properties by generating high Si/Ca ratio C-S-H gels. The study provides insights into the bonding mechanisms between aggregates and mortar, highlighting the potential of WGP to enhance ITZ performance in concrete.