slump test
https://bit.ly/4jAYaFr
Plenty of cracked driveways around Adelaide weren't cracked by bad concrete. It was the soil below that did it. A big chunk of the city sits on reactive clay, which swells when it's wet and shrinks when it dries out
Plenty of cracked driveways around Adelaide weren't cracked by bad concrete. It was the soil below that did it. A big chunk of the city sits on reactive clay, which swells when it's wet and shrinks when it dries out