Studies on Properties and Mixture Ratio of Pumping Concrete WANG Di 1,LIAO Wei dong 2,LIU Qiang 3 (1.School of Highway,Chang'an University,Xi'an 710064,China; 2.Hubei Heavy Repairing Headquarters of Wuhuang Expressway,Wuhan 430074,China; 3.The Highway Engineering Consultant and Supervision Center of Hubei Province,Wuhan 430051,China)Some properties of pumping concrete were introduced and its mixture ratio was also studied.The test results indicated that many performances of pumping concrete were promoted when high performance additives was added into it,which is adapt to the maintenance of bridge and other buildings.pumping concrete; property; mixture ratio