Impact of C-F-S-H/PCE Nanocomposites on Hydration and Mechanical Properties of Slag Cement
QIN Zihao
DONG Yemin
HU Chuanlin
Abstract：The influence of calcium-ferrite-silicate-hydrates/polycarboxylate ether(C-F-S-H/PCE)nanocomposites on the hydration and mechanical properties of slag cement were investigated.Various methods including mechanical property testing,isothermal calorimetry,X-ray diffraction,and mercury intrusion porosimeter were employed to investigate the compressive strength,hydration,and microstructure of the cement blended with large slag levels(50%,70%,90%).The results reveal that the C-F-S-H/PCE nanocomposites significantly enhance the compressive strength of slag cement.The 1 day compressive strength of slag cement with 50%slag content is increased by 60%.C-F-S-H/PCE nanocomposites have a regulatary effect on the hydration reaction of slag cement.By accelerating the early hydration of cement and the formation of calcium hydroxide,the reactivity of the slag is stimulated,thus promoting its continuous reaction.
Keywords：slag cementC-F-S-H/PCE nanocompositecompressive strengthhydrationmicrostructure
Publication Date：2024-11-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 969-976 )