With the help of the water flow, the dust that should have been scattered turned into streams of gray sludge, flowing down the pile columns.
Lin Yu'an focused intently, first cutting a deep ring groove over ten centimeters deep along the Red Line around the pile column.
Once the groove was cut, Old George took out a high-powered electric pick from his toolbox.
"Da da da da da——!"
Along with a series of dense, powerful impacts, big chunks of concrete were easily chiseled away, exposing the internal rebar cage.
Finally, Lin Yu'an took out his own small angle grinder, swapped in a grinding disc, and performed final fine grinding on the rough surface until the cut surface of the entire pile top became smooth and flat.
Once all twenty-one pile tops were processed, Old George pulled out a 1.2-meter-long German Stabila high precision level to perform the final inspection between any two pile tops.
