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Properties of Polymer-Modified Mortars Using Methylmethacrylate-Butyl Acrylate Latexes with Various Monomer Ratios
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 Title & Authors
Properties of Polymer-Modified Mortars Using Methylmethacrylate-Butyl Acrylate Latexes with Various Monomer Ratios
Hyung, Won-Gil; Kim, Wan-Ki; Choi, Nak-Woon; Soh, Yang-Seob;
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 Abstract
The purpose of this study is to clarify the effect of the monomer ratio on properties of the polymer-modified mortars using methylmethacrylate-butyl acrylate(MMA/BA) latexes, and to obtain basic data necessary to develop appropriate latexes for cement modifiers. From the test results, we knew that the pore volume of polymer-modified mortars using MMA/BA latexes at bound MMA contents of 60 and 70 percent is 7.5∼75nm and the fine pore volume is increased with an increase in the polymer-cement ratio. The total pore volume of polymer-modified mortars using MMA/BA latexes is linearly reduced with an increase in the bound MMA content and increased in the polymer-cement ratio. In general, the superior compressive strength of polymer-modified mortars using MMA/BA latexes is obtained at a bound MMA content of 70 percent and a polymer-cement ratio of 15%. And, the water absorption and chloride ion penetration depth are greatly affected by the polymer-cement ratio rather than the bound MMA content. The important factors affecting the properties of polymer-modified mortars using MMA/BA latexes polymerized with various monomer ratios are the variations of the pore size distribution with changing bound MMA content and the polymer-cement ratio.
 Keywords
polymer;monomer ratio;synthesis;polymer-modified mortar;pore size distribution;
 Language
Korean
 Cited by
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