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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Properties of Polymer-Modified Mortars Using Powdered Emulsions
Author(s): Y. Ohama and K. Shiroishida
Publication: Special Publication
Appears on pages(s): 313-322
Keywords: adhesion; admixtures; compressive strength; drying
shrinkage; emulsifying agents; flexural strength; mortars
(material); permeability; plastics, polymers, and resins;
polyethylene; polyvinyl acetate.
Abstract:Recently powdered emulsions of improved quality have, been developed and commercialized as cement modifiers. Mixed in a powder form with cement mortars, they are re-emulsified and modify the mortars. The purpose of this study is to evaluate the quality of the commercial powdered emulsions for cement modifiers. Polymer-modified mortars using powdered emulsions were prepared with variation in polymer-cement ratio, and tested for strength, adhesion, waterproofness, length change and water resistance. Their properties were also compared with those of ordinary polymer-modified mortar using styrene-butadiene rubber latex. It is concluded from the test results that the powdered emulsion- modified mortars can be used in the same manner as ordinary polymer-modified mortar in practical applications, in consideration of their drying shrinkage.
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