| 논문명 |
再乳化形粉末樹脂 및 폴리머 디스퍼젼 混入 폴리머 시멘트 모르터의 强度와 接着特性 / Strength and Adhesion Properties of Polymer-Modified Mortars Using Redispersible Powders and Polymer Dispersions |
| 저자명 |
김완기(Kim Wan-Ki) |
| 발행사 |
대한건축학회 |
| 수록사항 |
대한건축학회논문집 구조계, v.22 n.4 (2006-04) |
| 페이지 |
시작페이지(119) 총페이지(8) |
| ISSN |
12269107 |
| 주제분류 |
재료 / 구조 |
| 주제어 |
재유화형 분말수지 ; 폴리머 디스퍼젼 ; 폴리머 시멘트 비 ; 강도 ; 접착성//Redispersible Polymer Powders ; Polymer Dispersions ; Polymer-Cement Ratio ; Strengths ; Adhesion |
| 요약1 |
본 연구는 건축 마감재로서의 프리패키지드형 제품의 제조에 다용되는 재유화형 분말수지를 이용한 폴리머 시멘트 모르터의 압축강도, 휨강도, 인장강도 및 접착특성을 파악한다. 그리고 세공용적 및 주사형 전자현미경 사진을 촬영하여 그 조직구조를 관찰하여 범용의 폴리머 디스퍼젼 및 보통 시멘트 모르터와 비교·검토하여 그 제품의 성능을 명백히 하는 것이다. |
| 요약2 |
Redispersible polymer powders are usually produced from ordinary polymer dispersions by spray drying process. In recent years, the redispersible powders of improved quality have been developed and commercialized as cement modifiers. The principle of modification of cement mortar with the redispersible polymer powders is almost the same as that with polymer dispersions. Mostly the redispersible polymer powders are added to the dry-mixed cement and fine aggregate, and then water is mixed with the mixture. During the wet mixing with water, the redispersible polymer powders are re-emulsified in the mortar, and behave in the same manner as the polymer dispersions for cement modifiers.
The purpose of this study is to ascertain the strength properties of polymer-modified mortars using redispersible powders in comparison with polymer-modified mortars using polymer dispersions, and is also evaluated the adhesion properties. Polymer-modified mortars using commercial redispersible powders and polymer dispersions as controls are prepared with various polymer-cement ratios, and tested for flexural and compressive strengths, tensile strength, and adhesion in tension. And the pore size distribution of polymer-modified mortars using commercial redispersible powders and polymer dispersions is observed. It is judged that the modification of cement mortar with the redispersible powders causes marked improvements in its strength properties like the polymer dispersions, depending on the polymer-cement ratio. Also, the adhesion of redispersible polymer powder-modified mortars is improved with an increase in the polymer-cement ratio, and is superior to that of unmodified mortar. |
| 소장처 |
대한건축학회 |