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SHI Xianyuan, LI Hao, LIU Yin, ZHANG Haoqiang. Experimental on Influencing Factors of Strength Performance of Construction Waste Filling Paste[J]. Safety in Coal Mines, 2020, 51(8): 72-76.
Citation: SHI Xianyuan, LI Hao, LIU Yin, ZHANG Haoqiang. Experimental on Influencing Factors of Strength Performance of Construction Waste Filling Paste[J]. Safety in Coal Mines, 2020, 51(8): 72-76.
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Experimental on Influencing Factors of Strength Performance of Construction Waste Filling Paste

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  • Published Date: August 19, 2020
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    • Abstract
  • In order to verify the rationality of construction waste as a filling material and the influencing factors on the strength properties of the filling paste, a construction waste filling paste with different solid ratios(cement, fly ash, construction waste ratio) and mass fraction was prepared. Then the uniaxial compressive strength test was carried out, and the influence of different ages on the stress and strain of the construction waste filling paste was explored. The results show that the compressive strength of construction waste as a filling material can reach the mine demand under different solid ratios and mass fractions. When the solid ratio is greater than 1∶4∶6, the compressive strength begins to decrease significantly and the mass fraction is suitable. The control is about 76%, and the stress-strain characteristics of the construction waste filling paste belong to the plastic-elastic-plastic type.
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    • References (21)
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