Preparation and Characterization of a New Kind of Nano-rod Shaped Polycarboxylate Slump-Retaining Admixture Using for Concrete

A new kind of nano-rod shaped polycarboxylic acid slump-retaining agent was synthesized. Trans- mission electron microscope （TEM） experiment showed that the nano-rod was bound together as macromolecular aggregates in solution. Application performance studying suggested that this kind nano-sized poly...

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Bibliographic Details
Published in:Shanghai jiao tong da xue xue bao 2012-10, Vol.17 (5), p.541-544
Main Authors: Duan, Guo-rong, Huang, Guo-hong, Li, Ai-mei, Zhu, Ye-ran, Gong, Ying
Format: Article
Language:English
Subjects:
Admixtures
Architecture
Cements
Computer Science
Concretes
Electrical Engineering
Endurance
Engineering
Life Sciences
Materials Science
Nanocomposites
Nanomaterials
Nanostructure
Transmission electron microscopy
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Summary:A new kind of nano-rod shaped polycarboxylic acid slump-retaining agent was synthesized. Trans- mission electron microscope （TEM） experiment showed that the nano-rod was bound together as macromolecular aggregates in solution. Application performance studying suggested that this kind nano-sized polymer material had excellently plasticity-retaining performance in cement-based materials and could improve endurance perfor- mance of hardened cement-based materials distinctly. The concrete with an initial slump of 2--9 cm could achieve 3 h plasticity-retaining performance with the help of this kind nano-rod. The product had extremely wide appli- cation value in the market.
ISSN:1007-1172
1995-8188
DOI:10.1007/s12204-012-1322-9