Tests Research on Grouting Materials of Waste-Concrete-Powder Cement for Goaf Ground Improvement

<div>Particle size classification of WCP at different grinding times: (a) volume density, (b) particle size accumulation, and the proportion of particles greater than 45 <i>μ</i>m.</div>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Tests Research on Grouting Materials of Waste-Concrete-Powder Cement for Goaf Ground Improvement 