| Title |
Study on the Mechanical Properties of Polymer Cement Concrete for CFT |
| Authors |
Lim Seo-Hyung ; Kang Hyun-Sik ; Jee Nam-Yong |
| Keywords |
폴리머 시멘트 콘크리트 ; 폴리머시멘트비 ; 충전강관 ; 인장강도 ; 휨강도폴리머 시멘트 콘크리트 ; 폴리머시멘트비 ; 충전강관 ; 인장강도 ; 휨강도 |
| Abstract |
The purpose of this study is to investigate mechanical properties of the polymer cement concrete for CFT. Latex dispersion on the basis of ?styrene-butadiene rubber?was used as a cement modifier. Investigation of the fresh and hardened modified concrete behavior was made on the basis of testing concretes modified with 10, 20 percent of polymer admixture on the cement mass. The setting time of the polymer cement concrete was very retarded with the increase of the dosage of superplasticizers and?? polymer-cement ratio. The increase of flexural strength for concrete modified with 10 percent and 20 percent of polymer admixture was 55 percent and 64 percent, respectively. At the polymer-cement ratios of 10 percent and 20 percent, the?? increase of tensile strength was 30 percent and 47 percent, respectively. And modules of elasticity and shrinkage of the??polymer cement concrete was decreased with the increase of polymer-cement ratio. At the maximum stress, strains increased with the polymer-cement ratio and CFT filled polymer cement concrete did not show decreasing behavior after reaching the ultimate strength. |