Research on Polycarboxylic Superplasticizer with Slump Retaining

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Abstract:

Adopting methyl allyl polyoxyethylene ether (TPEG) and unsaturated carboxylic acid throught REDOX system synthetize the polycarboxylic slump retaining admixture. Researching the impact factors of temperature,reaction time, acid alcohol ratio, dosage of initiator and molecular regulator to the polycarboxylic superplasticizer with slump retaining.In the circumstance of reaction temperature is 45°C, reaction time is 4 hours, acid alcohol ratio is 1:3.25,dosages of initiator and molecular regulator are 0.27% and 4% by weight.. Using infrared spectroscopy(IR) to characterize the molecular structure of polycarboxylic superplasticizer with slump retaining.

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Advanced Materials Research (Volumes 919-921)

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2092-2098

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April 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Yu XIAO, Guosheng LIAO, Hui PAN. Impact of cement properities upon adaptability of polycarboxylate superplasticizer[J]. Building construction, 2012(5): 450-452 (In Chinese).

Google Scholar

[2] Qianping RAN, Jiaping LIN, Jianfang Sha. Research on the high slump reatining polycarboxylate high performance superplasticizer[C]. / The third national polycarboxylate high performance superplasticizer application technology conference. Beijing: The Architectural Society of China, 2007: 57-61 (In Chinese).

DOI: 10.14359/51711201

Google Scholar

[3] Caijun SHI, Fuqiang HE, Hui LIU. The recent research progress of high efficiency polycarboxylate superplasticizer. [J]. The commercial concrete. 2010(2): 20-23 (In Chinese).

Google Scholar

[4] KaZuo Yamada. Effects of the chemical structure on the properties of polycarboxylate一type superplasticier. Cement and Concrete Research, 2000, 30 (2): 1972208.

Google Scholar

[5] Gye—Gyu Lim, Youn D, Hassanali M. Slump loss, control of cement paste by adding polycarboxylic—type slump—releasing dispersant. Cement and Concrete Research, 1999. 29(2): 2232229.

DOI: 10.1016/s0008-8846(98)00188-4

Google Scholar

[6] Zhiyong ZHANG, Qianping RAN, Yong YANG, Yonglin MAO, Dongliang ZHOU. Study on preparation and performance of polymaleic water reducer based on allyl polyethylene glycol[J], New building materials, 2011, 38(6): 40-43(In Chinese).

Google Scholar

[7] Zi-ming WANG. Polycarboxylate high performance superplasticizer—preperation·performance and application[M]. Beijing: China architecture&building press, 2009. (In Chinese).

Google Scholar