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In this chapter, we will discuss the scaling of the nanoscopic elastic and tensile failure properties of C-S-H. We describe a Zhurkov-like scaling behavior for disordered C-S-H of various compositions at cryogenic temperatures, using molecular dynamics simulations. To this end, we begin with proposing a revised molecular construction route to generate C-S-H atomic configurations with varying compositions. Then, we present how the tensile behavior evolves with temperature, system size, and strain rate. We will show that tensile strength, Young’s modulus, fracture energy, and fracture-process zone (FPZ) length, all follow a Zhurkov-like scaling law providing a general temperature-size-time equivalence. Such scaling laws make it possible to extrapolate molecular simulation results to larger length and/or time scales.

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Scaling of Nanoscale Elastic and Failure Properties of Cement-Based Materials

  • 章节

  • 发表日期：

    2025年

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  • Zhengwu Jiang,
  • Xinping Zhu

摘要

In this chapter, we will discuss the scaling of the nanoscopic elastic and tensile failure properties of C-S-H. We describe a Zhurkov-like scaling behavior for disordered C-S-H of various compositions at cryogenic temperatures, using molecular dynamics simulations. To this end, we begin with proposing a revised molecular construction route to generate C-S-H atomic configurations with varying compositions. Then, we present how the tensile behavior evolves with temperature, system size, and strain rate. We will show that tensile strength, Young’s modulus, fracture energy, and fracture-process zone (FPZ) length, all follow a Zhurkov-like scaling law providing a general temperature-size-time equivalence. Such scaling laws make it possible to extrapolate molecular simulation results to larger length and/or time scales.