Is it required to use groute pump

Iran
November 13, 2006 4:36am CST
I have to apply grout between 3-5 centimeter thickness under a base plate which would be used for installtion of heavy machinerry . the base plate is 4x12 Meter . Is it required to use a pump or just puring the grout under the base plate would be o.k.? is there any standard in this regard ?
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