Water sensitivity of cement‐based materials

Cement-based materials are the most widely used construction on planet. play a fundamental role in modern civilization and will for foreseeable future. Although great efforts have been devoted to discovering behaviors optimizing their performances, several long-standing controversies persist water-related properties of cement-based materials, which hinder theoretical researches mislead technological developments. Inspired by decreasing water permeability clay-bearing rocks, term “water sensitivity” geophysics is borrowed proposed materials. The lamellar structure negatively charged nanoparticles responsible swelling clay-based reservoir rocks. Amorphous calcium silicate hydrate gels similar micro-structural characteristics. They probably swell upon wetting contract drying, making pore dependent content. More importantly, unexplained can be rationalized using sensitivity. Thorough exploration both characteristics performances validate use sensitivity Because participates or regulates almost all physical chemical processes part interpretations performances.