Study on the Preparation and Performance of a New Alkali-Free and Chloride-Free Liquid Accelerator

Abstract:

Accelerators have taken an important role in preparation of shotcrete. The preparation method of a new chlorine-free and alkali-free liquid accelerator was amplified, and its effects on cement setting time, mortar strength and other performances were studied. The results showed that the preparation accelerator was transparent liquid, alkali-free, chlorine-free, stabilization, and long time not to layer. When the addition ratio (in mass) of accelerator is more than 4%, such performances like setting time and mortar strength of cement reach the requirement of JC477-2005 standard. The 1d compressive strength of cement mortar was up to 14Mpa, and 28d compressive strength doe not decrease.. The best addition ratio of this accelerator is 4% to 6%.

• Periodical: Materials Science Forum (Volumes 743-744)
• Pages: 312-315
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.743-744.312
• Online since: January 2013
• Authors: Zhong Cheng Ma, Lan Wang, Jing Yu Ma
• Keywords: Alkali-Free Liquid Accelerator, Chloride-Free Liquid Accelerator, Mortar Strength, Preparation, Setting Time

References

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