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Experimental study on cement gangue powder composite grouting material
Wang Xuewei1,2,3
1. National Energy Key Laboratory of Backfilling Mining Technology, Xingtai 054000, China; 2. Hebei Coal Research Institute Co. , Ltd., Xingtai 054000, China; 3. Hebei Backfilling Mining Technology Co., Ltd., Xingtai 054000, China


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