Shield grouting material and preparation method thereof: Fid-Bau Portal

Shield grouting material and preparation method thereof

YANG JUNHUI

The invention provides a shield grouting material and a preparation method thereof, and relates to the field of building materials. The shield grouting material comprises a dry powder composition and water, the dry powder composition comprises 1 to 10 wt% of graphene, 10 to 30 wt% of cement, 0.1 to 2 wt% of a water repellent, 40 to 60 wt% of building solid waste, 20 to 36 wt% of tail powder and 0.01 to 2 wt% of a surfactant. The shield grouting material has the advantages of being high in quality and low in cost at the same time, has appropriate initial fluidity, high strength, low bleeding rate, low grout yield and high consolidation rate at the same time, can effectively improve the quality and efficiency of shield tunnel construction, and has wide application prospects.

本申请提供一种盾构注浆料及其制备方法，涉及建筑材料领域。所述盾构注浆料包括干粉组合物和水；所述干粉组合物包括1～10wt％的石墨烯、10～30wt％的水泥、0.1～2wt％的憎水剂、40～60wt％的建筑固废、20～36wt％的尾粉、0.01～2wt％的表面活性剂。本申请的盾构注浆料同时具有高品质和低成本的优点，本申请的盾构注浆料同时具有适宜的初始流动度、较高的强度、较低的泌水率、较低的出浆率和较高的固结率，能够有效提高盾构隧道施工的质量和效率，具有广泛的应用前景。

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