Grout flow cones measure the flow of grout for preplaced aggregate concrete.  The flow cone method works with neat grout. Grouts containing fine aggregate capable of passing a No. 8 sieve, and grouts having 35 seconds or less efflux time. Time of discharge of a 1.725L sample measures flowability of grout through the 1/2 inch interior diameter discharge tube orifice from the cone.  The polyethylene flow cone has a stainless steel orifice and is simple to use.  The aluminum flow cone set has a sturdy 3-legged painted steel stand. The stand features adjustable neoprene rubber feet for leveling and isolation from vibration.