免压蒸养护PHC管桩混凝土配合比的试验研究  

Experimental Study on Concrete Mixture Ratio of PHC Pipe Pile Cured by Non-pressure Steam

作　　者：漆江锋 陈阳亮 戴良 李滔明 徐振兵 薛盛龙 Qi Jiangfeng;Chen Yangliang;Dai Liang;Li Taoming;Xu Zhenbing;Xue Shenglong(Jiangxi Building Materials Product Quality Supervision and Inspection Station Co.Ltd.,Nanchang,Jiangxi 330001;Jiangxi Zhongtai Lai Concrete Pipe Pile Co.Ltd.,Nanchang,Jiangxi 330513)

机构地区：[1]江西省建材产品质量监督检验站有限公司,江西南昌330001 [2]江西中泰来混凝土管桩有限公司,江西南昌330513

出　　处：《江西建材》2022年第8期30-32,共3页Jiangxi Building Materials

摘　　要：试验通过优选混凝土掺合料和优化混凝土配合比参数,得出免高压蒸汽养护管桩混凝土基本配合比参数:水胶比<0.24,胶凝材料用量≥480kg/m~3,砂率35%,HPWR-S标准型高性能减水剂掺量(含固量12%)为2.2%~2.5%,根据此配合比参数试验的管桩混凝土能满足3d抗压强度达到80MPa的设计要求,在此基础上进行了免高压蒸汽养护PHC管桩试样的生产。试验结果表明,PHC管桩的免压蒸养护生产技术可行。In this test, by optimizing concrete admixture and concrete mixing ratio parameters, the basic mixing ratio parameters of highpressure steam curing pipe pile concrete were obtained as follows: Water-binder ratio < 0.24, cementing material dosage≥480kg/m~3,sand rate 35%, HPWR-S standard high performance water reducing agent dosage(solid content 12%) 2.2%~2.5%, according to this mix parameter test pipe pile concrete can meet the design requirements of 3D compressive strength up to 80MPa. On this basis, the PHC pipe pile samples were produced without high pressure steam curing. The test results show that the production technology of PHC pipe pile is feasible.

关 键 词：PHC管桩 免高压蒸汽养护 混凝土配合比试验 

分 类 号：TU528[建筑科学—建筑技术科学]