Physical and Chemical Influence of Polyacrylate Latex on Cement Mortars

Abstract

In this research, the physical and chemical influence of polyacrylate (PA) latex on cement-based materials were studied using polymer modified mortars with polymer/cement (P/C) ratios of 0%, 5% and 10%. Physically, the mechanical performance of PA latex modified mortars was investigated with compression toughness energy and bending strength. Further more, a comparison of the pore structure and porosity between PA latex modified and unmodified mortars was conducted. The chemical reactions between PA polymer and cement hydrates were clarified with thermogravimetric (TG) analysis. It can be concluded from this research that PA polymer can refine the pore structure of cement mortars and link the cement hydration products together chemically. While, at the same time, PA latex addition can cause air entrainment which will weaken the physical behavior of cement mortars. So there is an optimum P/C ratio to achieve the best mechanical properties. And in this research, the optimum P/C ratio is 5%.

Meeting Name

2011 International Conference on Civil Engineering and Building Materials, CEBM 2011 (2011: Jul. 29-31, Kunming, China)

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Cement Based Material; Cement Hydrates; Cement Hydration; Cement Mortars; Mechanical Performance; Physical Behaviors; Polyacrylate Latex; Polyacrylate Latices; Polymer Modified Mortar; Polymer Modified Mortars; Air Entrainment; Bending Strength; Cements; Chemical Analysis; Civil Engineering; Construction Equipment; Hydrates; Hydration; Latexes; Mechanical Properties; Polymers; Pore Structure; Religious Buildings; Research; Thermogravimetric Analysis; Mortar; Chemical Reactions

International Standard Book Number (ISBN)

978-3037851418

International Standard Serial Number (ISSN)

1022-6680

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 Trans Tech Publications, All rights reserved.

Publication Date

01 Jul 2011

Link to Full Text

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