Effect of nano MgAl-NO3 and MgAl-HCOO layered double hydroxides on early hydration kinetics and chloride binding in cement paste
M. Fastelli·P. Comodi·R. Vivani·M. Nocchetti·A. Donnadio·A. Di Michele·L. Ricci·F. Mortaro·A. Zucchini·L. Valentini
Abstract Enhancing the durability of cement paste through the incorporation of appropriate additives represents a promising approach to improving the sustainability of cement production. In particular, the inclusion of layered double hydroxides (LDHs) in cementitious systems has been shown to enhance their corrosion resistance to Cl − and SO 4 2− anions. However, LDHs, due to their anionic exchange capability, significantly affect the initial kinetics. In this work, two types of nanometric LDHs,