Effects of Temperature on the Performance of Sucrose in Cement Hydration
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 7
Abstract
The performance of sucrose in cement hydration, including both the early structure formation and further development of cement paste under different curing temperatures, was studied by measures of setting time, heat evolution, resistivity evolution, compressive strength, and porosity. The results showed that there was a critical dosage () of sucrose. When the dosage was less than , the retarding effect was enhanced by increasing the dosage. Greater than , sucrose became less retarding and even became accelerating. Increasing the curing temperature decreased the critical dosage (). When the dosage was less than 0.08%, sucrose showed less retarding effect at 40°C than at 20°C, but better retarding effect at the dosage of 0.08–0.2%. The strength development of cement paste after the induction period was accelerated at 40°C than at 20°C, although 0.08% sucrose prolonged the induction period.
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Acknowledgments
The work presented in this paper was funded by the “973” project “Basic Research on the Manufacture and Application of High Performance Cement” (UNSPECIFIED2001CB610704-3) and “863” project “Super High-Rise Building Construction, Condition Monitoring and Reliability Control Technology” (UNSPECIFIED2009AA04Z420).
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Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 7 • July 2011
Pages: 1124 - 1127
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jun 3, 2010
Accepted: Jan 3, 2011
Published online: Jan 5, 2011
Published in print: Jul 1, 2011
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