Ⅲ级粉煤灰和石粉双掺对C50泵送混凝土可泵性的影响  

Effect of GradeⅢFly Ash and Stone Powder on Pumpability of C50 Pumping Concrete

作　　者：马挺 张美香[2] 田崇霏 白召军 霍虎 罗忠涛[2] 刘锦涛 MA Ting;ZHANG Mei-xiang;TIAN Chong-fei;BAI Zhao-jun;HUO Hu;LUO Zhong-tao;LIU Jin-tao(Henan Building Materials Research and Design Institute Co.,Ltd.,Zhengzhou 450002,China;School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;Henan Renbang Technology Co.,Ltd.,Zhengzhou 450056,China;Qingdao Haigao Urban Development Group Co.,Ltd.,Qingdao 266001,China)

机构地区：[1]河南建筑材料研究设计院有限责任公司,河南郑州450002 [2]郑州大学材料科学与工程学院,河南郑州450001 [3]河南人邦科技股份有限公司,河南郑州450056 [4]青岛海高城市开发集团有限公司,山东青岛266001

出　　处：《混凝土与水泥制品》2021年第5期26-28,共3页China Concrete and Cement Products

基　　金：郑州市重大科技创新专项项目(2019CXZX0027);河南省新型墙体材料专项基金项目(豫财建[2017]264号)。

摘　　要：采用Ⅲ级粉煤灰和石粉双掺进行C50泵送混凝土配制,并研究其可泵性。采用三因素三水平正交试验和方差分析法进行了对比分析,并结合混凝土实际性能表现,得出本试验条件下的最优组合:25%Ⅲ级粉煤灰+16%石粉+1.6%外加剂。C50 pumping concrete was prepared by mixing gradeⅢfly ash and stone powder,and its pumpability was studied.The orthogonal experiment was designed and three factors and three levels were used.The results show that the best combination is 25%gradeⅢfly ash+16%stone powder+1.6%admixture.

关 键 词：泵送混凝土 粉煤灰 石粉 可泵性 

分 类 号：TU528.31[建筑科学—建筑技术科学]