The physico-mechanical stability of C-S-H/polyaniline nanocomposites

摘要: The formation and characterization of various types organically modified C–S–H-based nanocomposites have recently been investigated. engineering properties this class cementitious materials, however, rarely studied. current work examines a new approach to the assessment mechanical performance C–S–H/polyaniline prepared in situ using C–S–H systems having C/S ratios 0.8 1.2. Test methods including X-ray diffraction dynamic analysis were employed order evaluate physical stability these polymer-modified nanocomposites. variations 002 basal spacing, storage modulus (E′) internal friction (tan δ) examined upon incremental removal interlayer water. It was suggested that polyaniline molecules may reinforce lamellar structure as indicated by magnitude decrease basal-spacing during dehydration. Moreover, initial DMA response appears be improved.