混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2014年
11期
79-83
,共5页
宋军华%王玲%鲁守成%张萍%杨智方%高瑞军
宋軍華%王玲%魯守成%張萍%楊智方%高瑞軍
송군화%왕령%로수성%장평%양지방%고서군
水下混凝土%钻孔灌注桩%高性能混凝土%质量控制
水下混凝土%鑽孔灌註樁%高性能混凝土%質量控製
수하혼응토%찬공관주장%고성능혼응토%질량공제
Underwater concrete%Bored cast-in-situ pile%High performance concrete%Quality control
针对钻孔灌注桩混凝土大流动性和高耐久性的技术要求，对芜湖长江公路二桥主桥钻孔灌注桩用 C35高性能混凝土从原材料选择、配合比设计以及混凝土性能三方面进行了研究。实际施工效果表明，按照高性能混凝土理念设计和施工的钻孔灌注桩混凝土的粘聚性和流动性好，且无泌水、离析现象，芯样测试结果也证明了钻孔灌注桩混凝土满足设计强度和耐久性要求，内部结构密实、无裂缝。
針對鑽孔灌註樁混凝土大流動性和高耐久性的技術要求，對蕪湖長江公路二橋主橋鑽孔灌註樁用 C35高性能混凝土從原材料選擇、配閤比設計以及混凝土性能三方麵進行瞭研究。實際施工效果錶明，按照高性能混凝土理唸設計和施工的鑽孔灌註樁混凝土的粘聚性和流動性好，且無泌水、離析現象，芯樣測試結果也證明瞭鑽孔灌註樁混凝土滿足設計彊度和耐久性要求，內部結構密實、無裂縫。
침대찬공관주장혼응토대류동성화고내구성적기술요구，대무호장강공로이교주교찬공관주장용 C35고성능혼응토종원재료선택、배합비설계이급혼응토성능삼방면진행료연구。실제시공효과표명，안조고성능혼응토이념설계화시공적찬공관주장혼응토적점취성화류동성호，차무비수、리석현상，심양측시결과야증명료찬공관주장혼응토만족설계강도화내구성요구，내부결구밀실、무렬봉。
Aiming at the technical requirements of high fluidity and good durability of bored cast-in-situ pile concrete, C35 high performance concrete for bored cast-in-suit pile in the main bridge of No.2 Wuhu Yangtze River Highway Bridge was investigated. Raw materials selection, mix proportion design and properties of the concrete were especially researched. Actual construction shows that the bored cast-in-situ pile concrete, designed and implemented according to the concept of high performance concrete, appears good adhesiveness and fluidity, without bleeding and segregation. Core samples test re-sults also prove that the strength and durability of pile concrete can meet the design requirements, and the concrete are dense and free of cracks.
