AASHTO T 221:1990 (R2012)
AASHTO T 221:1990 (R2012) Method Of Test For Repetitive Static Plate Load Tests Of Soils And Flexible Pavement Components For Use In Evaluation And Design Of Airport And Highway Pavements Includes a procedure for making repetitive static plate load tests on subgrade soils and compacted pavement components, in either the compacted condition or the natural state, and is to provide data f