先张法预应力离心混凝土竹节桩生产试验研究  

Experiment Study on Production of Pretensioned Spun Concrete Knot Piles

作　　者：薛万银 XUE Wan-yin

机构地区：[1]苏州混凝土水泥制品研究院有限公司、江苏省高耐久混凝土工程技术研究中心

出　　处：《混凝土与水泥制品》2019年第9期29-31,45,共4页China Concrete and Cement Products

摘　　要：采用常压蒸汽养护方式,以硅粉为掺合料配制了强度等级为C85的混凝土,研究了硅粉掺量对混凝土布料成型和强度的影响,并结合生产实际情况,参考PHC管桩离心成型和蒸汽养护工艺制度,确定了无余浆生产竹节桩的离心成型及蒸汽养护工艺制度。The pretensioned spun knot piles of C85 concrete with silicon fume was prepared by using atmospheric pressure steam curing method, the influence of silica fume content on the formation and strength of pretensioned spun concrete knot piles was studied. Combined with the actual production situation, the spun forming and steam curing process of PHC pipe, the spun forming and steam curing technology system of pretensioned centrufugal concrete knot piles with free-paste was put forward..

关 键 词：竹节桩 硅粉 离心成型 蒸汽养护 先张法 

分 类 号：TU525.9[建筑科学—建筑技术科学]