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    • 3. 发明申请
    • TENDONS GROUTING WITH RECIRCULATION
    • TENDONS集团与重组
    • WO2016050979A1
    • 2016-04-07
    • PCT/EP2015/072873
    • 2015-10-02
    • VSL INTERNATIONAL AG
    • MEYER, MaxGUSTAVSSON, Pelle
    • E04G21/12B28B23/04E04C5/10
    • E04G21/12B28B23/046E04C5/10
    • The invention concerns a method of grouting post-tensioned tendons (10) and associated anchorages (21, 22) in a pre-stressed concrete (PC) structure (20), said tendons (10, 101 -106) comprising a tendon inlet (11) and a tendon outlet (12), comprising the following steps: - injecting grout in a tensioned tendon (10) in a first injection step, between said tendon inlet (11) and said tendon outlet (12) at least until grout has reached said tendon outlet (12), -connecting said tendon outlet (12) to said tendon inlet (11), forming thereby a closed grout injection loop, and - injecting grout in said tendon in a second injection step by circulating said grout in said closed grout injection loop. A three-way valve (60) is used to direct the grout coming from the tendon outlet (12) either to a waste reservoir (38) during said first injection step or to a tendon inlet (11) during said second injection step.
    • 本发明涉及一种在预应力混凝土(PC)结构(20)中灌浆后张紧筋(10)和相关锚固件(21,22)的方法,所述腱(10,101-106)包括腱入口 11)和腱出口(12),包括以下步骤: - 在第一注射步骤中,在所述腱入口(11)和所述腱出口(12)之间的至少直到灌浆具有 到达所述肌腱出口(12),将所述肌腱出口(12)连接到所述肌腱入口(11),由此形成封闭的灌浆注射回路,以及 - 在第二注射步骤中,在所述肌腱中注入灌浆, 闭式灌浆注射回路。 三通阀(60)用于在所述第一注射步骤期间将来自腱出口(12)的浆料引导至废液储存器(38),或者在所述第二注射步骤期间引导到腱入口(11)。