Modification of Wood Fiber for Use in Cement Board

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Han, F.Q.^1 ; Tan, X.^1 ; Zhao, F.Q.^1,2

Hebei University of Science and Technology, Shijiazhuang

050018, China^1

Hebei Engineering Research Center of Solid Wastes Utilization, China^2

关键词: Alkali solutions;    Cement boards;    Combined treatment;    Control samples;    Fiber surface;    Ordinary Portland cement;    Production cost;    Water-cement ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012020/pdf
DOI  :  10.1088/1757-899X/281/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

When ordinary Portland cement is used for wood fiber cement (WFC) board, the setting time is too long, even hard to solidify. Three methods can be used for wood fiber modification, i.e., soaking in water, treated with alkali solution and coated with some substances on the fiber surface. The results show that the proper water-cement ratio of WFC paste is 1:1.3 in the case of wood cement ratio being 1:1. The WFC board from modified wood fiber and cement is better than the control samples, in which the combined treatment, i.e. soaking in hot water and then coating with alkali-BFS-EVA slurry, behaves best. It is proved that ordinary Portland cement can be used to produce WFC board, with the modified wood fiber, which can greatly reduce production costs.