电厂灰渣制备井下膏体充填材料试验研究
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赵鑫,海龙,徐博,程同俊
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Experimental Study on Preparation of Paste Filling Materials from Power Plant Ash
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Xin ZHAO,Long HAI,Bo XU,Tongjun CHENG
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表7 级配优化试验结果
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Table 7 Experimental results of grading optimization
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序号 | 细骨料粒径/mm | 细骨料占比/% | 质量浓度/% | 不同养护龄期的充填体抗压强度/MPa |
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1 d | 3 d | 7 d | 14 d | 28 d |
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1 | ≤2 | 5 | 73.0 | 0.45 | 1.51 | 2.15 | 2.48 | 2.94 | 2 | ≤2 | 10 | 73.0 | 0.51 | 1.58 | 2.27 | 2.56 | 3.26 | 3 | ≤2 | 15 | 72.7 | 0.49 | 1.54 | 2.23 | 2.50 | 3.13 | 4 | ≤2 | 20 | 72.5 | 0.45 | 1.54 | 2.03 | 2.41 | 2.85 | 5 | ≤2 | 25 | 72.5 | 0.43 | 1.51 | 1.89 | 2.27 | 2.68 | 6 | ≤5 | 5 | 73.0 | 0.55 | 1.64 | 2.42 | 2.96 | 3.35 | 7 | ≤5 | 10 | 73.0 | 0.52 | 1.67 | 2.47 | 3.11 | 3.56 | 8 | ≤5 | 15 | 72.7 | 0.58 | 1.71 | 2.49 | 3.17 | 3.61 | 9 | ≤5 | 20 | 72.7 | 0.55 | 1.53 | 2.25 | 2.85 | 3.32 | 10 | ≤5 | 25 | 72.5 | 0.53 | 1.49 | 2.19 | 2.63 | 2.97 |
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