Cru (Christian organization) Cru (known as Campus Crusade for Christ until 2011) is an interdenominational Christian parachurch organization for college and university students.[1] It was founded in 1951 at the University of California, Los Angeles by Bill Bright and Vonette Zachary Bright.
Place concrete at a minimum thickness of 4 inches. Increasing the thickness from 4 inches to 5 inches will add approximately 20% to your concrete cost, but will also boost your driveway's load-carrying capacity nearly 50% , according to the Tennessee Concrete Association.
It is the thickness and the. compaction of the pavement that define quality. â² Driveways need a minimum compacted. thickness of 2 inches (50mm) of hot mix. asphalt. â² As a rule of thumb the compacted thickness of. each asphalt layer is typically about three. quarters the thickness of loose hot asphalt.