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摘要:
Nanofibrillated wood fiber was used as fillers in the partial cement matrix replacing the cement to a content of up to 2%by weight of cement.The nanofibrillated effect of wood fibers on porosity,thermal properties and compressive strength was studied.The results obtained showed an improvement in compressive strength of more than 40%with 1%by weight of wood fiber nanofibrillate.The addition of nanofibrillated wood fiber shows a good pore reduction,and the best result was obtained with emulsion of a mixture incorporating 1%by weight of wood fiber nanofibrillate in the presence of an anionic surfactant(SDBS).Thermal conductivity measurements and thermal expansion coefficient,compared to nanofibrillated wood fiber reinforced cement pastes,showed the reinforcing efficiency of cellulose fiber nanofibrillate.The degree of hydration of the cement increased with nanofibrillated wood fibers.This property has been confirmed by Fourier transform infrared spectroscopy.These analyzes revealed that the presence of nanofibrillated wood fibers generates and promotes the hydration of the cement,producing more portlandite and calcium silicate gel,which influences the compressive strength which gives a strong improvement.
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篇名 Characterization and Influence of Nanofiber Flours of Wood Modified on Fresh State Properties of Cement Based Mortars
来源期刊 可再生材料杂志(英文) 学科 工学
关键词 Cement nano-fiber FLOUR nano-fiber WOOD MODIFIED adjuvant surfactant emulsion
年,卷(期) kzsclzzyw_2019,(6) 所属期刊栏目
研究方向 页码范围 557-566
页数 10页 分类号 TB3
字数 语种
DOI
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研究主题发展历程
节点文献
Cement
nano-fiber
FLOUR
nano-fiber
WOOD
MODIFIED
adjuvant
surfactant
emulsion
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研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
可再生材料杂志(英文)
月刊
2164-6325
江苏省南京市浦口区东大路2号东大科技园A
出版文献量(篇)
126
总下载数(次)
1
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