Study on the reinforcement mechanism of salt crystal expansion inhibitor CuCl2·2H2O on cement mortar
LI Lang
ZHANG Yuwei
GAO Yuhui
LIU Yue
CHENG Yan
ZHENG Weiguo
Abstract：A novel efforescence inhibitor(CuCl2·2H2O)was reported in this paper.Its strengthening mechanism on cement mortar was investigated by means of X-ray diffraction(XRD),scanning electron microscopy(SEM)and energy dispersive X-ray spectroscopy(EDS).The results show that the calcium hydroxide[Ca(OH)2]produced in the initial stage of cement hydration is consumed by Cupric chloride dihydrate(CuCl2·2H2O),which can suppress the phenomenon of efflorescence in cement mortar,promote the later hydration of tricalcium silicate(C3S)and dicalcium silicate(C2S)in cement,thus enhancing the compressive strength of cement mortar.
Keywords：copper chloride dihydratereinforcing agentvateriteefforescence inhibitorSEMEDS
Publication Date：2026-01-25
Online Publishing Date：2026-03-17(First online date of this platform, not the publication date of the document)
Pages：4( 116-119 )