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    蘇州混凝土水泥制品研究院有限公司

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    水泥混凝土制品

    UHPC預制橋面板的研發與應用
    UHPC預制橋面板的研發與應用
    • 高玉軍1,2,3,邵建冬1,2,孫 武1,2,3,李 亮4,秦明強1,2,3
    2021年第10期
    摘要
    引用本文
    摘 ? 要:為滿足廣州鶴洞大橋(東西引橋)大中修工程H線引橋用超高性能混凝土(UHPC)預制橋面板的設計指標要求,通過原材料優選、配合比設計及力學性能試驗,研究了石英砂級配和摻量、復合摻合料摻量及內養護劑摻量對UHPC工作性和力學性能的影響,制備了各項性能指標均滿足設計及施工要求的UHPC。同時,其24 h立方體抗壓強度達到設計強度的70%以上,滿足拆模起吊要求。 Abstact: According to the design index requirements of UHPC precast bridge deck for H-line approach bridge of Guangzhou Hedong Bridge (east-west approach bridge), through raw material optimization, mix proportion design and experimental research, the effects of quartz sand gradation and content, compound admixture content, internal curing agent content on the workability and mechanical properties of UHPC were studied. The UHPC performance can meet design and construction requirements. Meanwhile, the 24 h compressive strength is more than 70% of the design requirement, which meets the requirements of mold removal and lifting.
    高玉軍,邵建冬,孫武,等.UHPC預制橋面板的研發與應用[J].混凝土與水泥制品,2021(10):42-47. GAO Yu-jun, SHAO Jian-dong, SUN Wu,et al.Development and Application of UHPC Precast Bridge Deck[J].China Concrete and Cement Products,2021(10):42-47.
    預制混凝土襯砌管片自動抹面設備的研發
    預制混凝土襯砌管片自動抹面設備的研發
    • 尹懷秀1,丁秀芳1,劉錦濤2
    2021年第10期
    摘要
    引用本文
    摘 ? 要:為提高預制混凝土襯砌管片外弧面的密實度和平整度,針對生產過程中傳統抹面工藝存在的生產效率低、工人配置多、勞動強度大、產品質量不穩定等問題,結合實際生產需要,研發了自動抹面設備,并著重介紹了粗收抹面、精收抹面設備的抹平機構,可為實現管片生產線的完全自動化提供參考。 Abstract: In order to improve the compactness and flatness of the outer arc surface of reinforced concrete segment, aiming at the problems existing in the traditional plastering process, such as low production efficiency, many workers, high labor intensity and unstable product quality, combined with the actual production needs, the automatic plastering equipment is developed, and the plastering mechanism of coarse plastering and fine plastering equipment is emphatically introduced, which can provide reference for realizing the complete automation of reinforced concrete segment production line.
    尹懷秀,丁秀芳,劉錦濤.預制混凝土襯砌管片自動抹面設備的研發[J].混凝土與水泥制品,2021(10):39-41. YIN H X,DING X F,LIU J T.Study on Automatic Plastering Equipment for Reinforced Concrete Segments[J].China Concrete and Cement Products,2021(10):39-41.
    芯模振動與徑向擠壓制管工藝的質量控制要點探討
    芯模振動與徑向擠壓制管工藝的質量控制要點探討
    • 許希坤
    2021年第10期
    摘要
    引用本文
    摘 ?要:基于鋼筋混凝土排水管的質量要求,介紹了芯模振動與徑向擠壓兩種成型工藝的質量控制要點,包括原材料選擇、混凝土配合比設計及性能、機械設備選型與控制、鋼筋骨架成型、成型要點和產品養護,并闡述了頂進施工用排水管生產過程及產品檢驗出廠的注意事項。 Abstract: Based on the quality requirements of reinforced concrete drainage pipe, the key control points of core mold vibration and radial extrusion forming process are introduced, including raw materials selection, concrete mix proportion design and performance, mechanical equipment selection and controlling, reinforcement framework sharping, products forming points and maintenance, and the production process of pipe jacking and the precautions for inspection and delivery are expound.
    許希坤.芯模振動與徑向擠壓制管工藝的質量控制要點探討[J].混凝土與水泥制品,2021(10):35-38. XU X K.Discussion on Quality Control Points of Core Mold Vibration Tube and Radial Extrusion Pipe Making Process[J].China Concrete and Cement Products,2021(10):35-38.
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