Effects of Slag Content on the Basic Physical Properties of Microfine Cement Grout
Date Issued
2007
Date
2007
Author(s)
Hsu, Ming-Hsien
DOI
zh-TW
Abstract
The object of this study is to investigate the effects of slag content on the basic physical properties of microfine cement grout. Different ratios of slag content and different water to cement ratios (w/c) were used to evaluate the effects of slag content on the grout. The experiments included compressive strength, flexural strength, shear strength of sand grouts, stability and fluidity of net grouts.
It was found that compressive strength, flexural strength and shear strength of sand grout increase with slag content. However, there exists an optimum formulation for a specific w/c. while the w/c is less than 2, the optimum slag content ranges from 50% to 70%; while w/c is between 3 to 5, the optimum slag content ranges from 40% to 50%. It was also found that the stability and the fluidity of net grout are affected by slag content. The higher the slag content, The higher the stability and the lower the fluidity. It is noticeable that while w/c ranges from 3 to 5, long term strength of the grout increases significantly because of the existing of slag in the grout, i.e. while w/c are different, the grouts are affected differently because of the slag added to the grouts.
It was found that compressive strength, flexural strength and shear strength of sand grout increase with slag content. However, there exists an optimum formulation for a specific w/c. while the w/c is less than 2, the optimum slag content ranges from 50% to 70%; while w/c is between 3 to 5, the optimum slag content ranges from 40% to 50%. It was also found that the stability and the fluidity of net grout are affected by slag content. The higher the slag content, The higher the stability and the lower the fluidity. It is noticeable that while w/c ranges from 3 to 5, long term strength of the grout increases significantly because of the existing of slag in the grout, i.e. while w/c are different, the grouts are affected differently because of the slag added to the grouts.
Subjects
超微粒水泥
爐石
單壓強度
抗彎強度
抗剪強度
穩定性
流動性
microfine cement
slag
compressive strength
flexural strength
shear strength
stability
fluidity
Type
thesis
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