Abstract:Traditional grouting materials have certain limitations, such as greater cement consumption, high cost, slow setting rate, and insufficient early strength, hindering their wide applicability. In this paper, desulfurization gypsum (DG) and fly ash (FA) are used as the main raw materials, supplemented by a small amount of Portland cement (PC), to develop a low-cost, fast-setting, and high-early-strength filling material. The mechanical properties and setting characteristics were assessed for varying PC, DG, and … Show more
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