@inproceedings{b7f5f648138b44cea8a200e6cdbb2872,
title = "An amphoteric copolymer as a concrete admixture",
abstract = "Superplasticizer is one key component to greatly increase the workability of concrete. In this study, an amphoteric copolymer (PDA) was prepared and evaluated as concrete admixture. PDA was prepared froma-N, N-dimethyl-N-(3-(bcarboxylate) acrylamino) propylammonium ethanate and acrylamide through free radical polymerization. The test results on cement pastes indicate that this polymer could uniformly disperse cement particles and enhance the fluidity of the system. Compared to a commercial sulfonated naphthalene formaldehyde condensates (NSF) superplasticizer, PDA requires less dosage to achieve good fluidity and provides better fluidity retention. Limited test data also show that PDA has better performance than NSF in terms of slump flow and flow retention of the resulting concrete.",
keywords = "Amphoteric copolymer, Cement, Concrete, Fluidity, Workability",
author = "Hsu, {K. C.} and Chen, {J. W.} and Jiang, {F. T.} and Hwung, {D. S.}",
note = "Publisher Copyright: {\textcopyright} 2006 American Concrete Institute. All rights reserved.; 8th CanMET/ACI International Conference on Superplasticizers and Other Chemical Admixtures in Concrete ; Conference date: 29-10-2006 Through 01-11-2006",
year = "2006",
month = oct,
day = "1",
language = "English",
series = "American Concrete Institute, ACI Special Publication",
publisher = "American Concrete Institute",
pages = "309--320",
editor = "V.M. Malhotra",
booktitle = "8th CanMET/ACI International Conference on Superplasticizers and Other Chemical Admixtures in Concrete",
address = "United States",
}