Abstract
This thesis aims to research the influence factors of the mechanical property of high performance cement-based iron-tailings grouting material (ICGM). By changing the parameter of water-cement ratio, the experiment is performed to contrast ordinary cement-based grouting material (OCGM) with ICGM. Their compression strength and anti-breaking strength are studied. Through the experimental results and the contrast of them, the influence of water-cement ratio on the mechanical property of the cement-based iron-tailings grouting material is evaluated and the reasonable water-cement ratio parameter is obtained. The experimental results show that the mechanical properties of ICGM reduce with the increase of water-cement ratio. Moreover, when the water-cement ratio reaches 0.31, there is an obvious reduction of early age strength. Thus, it is advisable to adopt 0.30 as the reasonable water-cement ratio.
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