| Title |
Effects of Wood sponge Pulp on Dispersion and Adherence of Fibers as well as Interfacial matrices in Fiber reinforced Cement Composite |
| Authors |
Choi Eung-Kyoo ; Lee Jae-Yong ; Lee Chan-Sik |
| Keywords |
Softwood Pulp ; Hardwood Pulp ; Sulfite Wood Pulp ; Cement Composite ; Reinforced Fiber |
| Abstract |
The aim of the study is to analyze characterized dispersion and arrangement of reinforcing fibers within cement composites among various reinforcing fiber materials, and to analyze physical and mechanical properties of cement composite specimens when the content of wood pulp is brought up to 4.0%. Based on the result of the experiment, the study is also to examine the effects of wood pulp on interfacial matrix and physical properties of cement composite and to determine optimal wood pulp material to be used for cement composite. Having analyzed the effects of wood pulp upon interfacial matrix and physical properties of cement composite, softwood pulp has demonstrated excellent interfacial adhesion and mechanical properties due to presence of abundant fibroids and fibrillation. While recycled sulfite wood pulp has exhibited relatively poor mechanical properties as compared to softwood pulp because of low tensile strength of the pulp fibers, hardwood pulp has demonstrated the poorest mechanical properties due to low content of fibers and brittleness. The study has demonstrated softwood pulp to be the most suitable material in terms of physical properties of cement composite for the purpose of reinforcing and dispersion of fibers. Because of the excellent hydrophilic and coagulating characteristics in water, wood pulp is proved to be an effective agent for uniform dispersion and maintaining the consistency of reinforcing fibers regardless of its kind. Whereas softwood pulp proved to be the most superior material, recycled sulfite wood pulp may be preferred in terms of economy with reasonable physical properties. |