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이윤수 ( Lee Youn Su ),주명기 ( Joo Myung Ki ),연규석 ( Yeon Kyu Seok ) 한국농공학회 2001 한국농공학회 학술대회초록집 Vol.2001 No.-
The effects of polymer-cement ratio and shrinkage-reducing agent content on the strength properties of ultrarapid-hardening polymer-modified mortars using redispersible polymer powder are examined. As a result, the flexural and tensile strengths of the ultrarapid-hardening polymer-modified mortars using redispersible polymer powder tend to increase with increasing polymer-cement ratio, and tend to decrease with increasing shrinkage-reducing agent content. However, the compressive strength of the ultrarapid-hardening polymer-modified mortars using redispersible polymer powder decrease with increasing polymer-cement ratio and shrinkage-reducing agent content.
이윤수 ( Lee Youn-su ),주명기 ( Joo Myung-ki ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-
Effects of the polymer-binder ratio and slag content on the properties of combined wet/dry-cured polymer-modified mortars using granulated blast-furnace slag are examined. Results shows that the flexural, compressive, tensile and adhesion in tension strengths of polymer-modified mortar using the slag tend to increase with increasing slag content, and is inclined to increase with increasing polymer-binder ratio. In particular, the polymer-modified mortars with slag content of 40% provide about 20% higher tensile strength than unmodified mortars. Such high strength development is attributed to the high tensile strength of polymer and the improved bond between cement hydrates and aggregates because of the addition of polymer.