Article thumbnail

Effects of sucrose and sorbitol on cement hydration applications to cement stabilization of metal waste

By Linghong Zhang


Cement-based stabilization/solidification (S/S) is a widely used technique to treat industrial wastes containing toxic metal ions before land disposal. To prevent the fast setting of the treated waste during its transportation from the treatment plant to the disposal site, small amounts of sucrose or sorbitol can be added to slow down the speed of cement setting, thus adding flexibility to the handling of the treated waste. However, sucrose and sorbitol may also affect the leachability of the metal ions present in the treated waste because of their ability to alter the microstructure of hydrated cement pastes. In the first stage of this research, various types of cements (pure tricalcium silicate [C3S], white Portland cement [WPC] and ordinary Portland cement [OPC]), which represent systems of increasing compositional complexity, were investigated to better understand the contribution of individual cement components to the properties of hydrated pastes. The degree of hydration was measured as a function of curing time by SEM grey level analysis and loss-on-ignition testing. The hydration rate was found to decrease as C3S > WPC > OPC, correlating with the relative content of C3S and tricalcium aluminate (C3A)

Topics: Sucrose, Sorbitol, Cement, Tricalicum silicate, Ordinary Portland cement, White Portland cement, Stabilization/solidification
Year: 2007
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://knowledgecommons.lakehe... (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.