Sir Elton Hercules John CBE (born Reginald Kenneth Dwight on 25 March 1947) is a multiple Grammy and Academy Award-winning English pop/rock singer, composer and pianist. Source(s): http://en.wikipedia.org/wiki/Elton_John
The âPerc Testâ. A Perc Test (also known as âPerk Testâ, and more formally known as a Percolation Test), is a soil evaluation that tests the rate at which water drains through soil.
several alternative tests such as the Dynamic Cone Penetration Test (DCPT) and the Clegg Hammer Test (CHT) were introduced as testing. tools for soil compaction quality control. However, no reliable correlations are available in the literature to employ these tests for soil. compaction quality control.