This compression system is a very handy invention, especially for Web users, because it lets you reduce the overall number of bits and bytes in a file so it can be transmitted faster over slower Internet connections, or take up less space on a disk.
Concrete hardens to 600PSI (Minimum) after 24 hours. This means that 5 three grown men could all stand on a pogo stick (if that were possible) who's base covers 1 square inch without harming the concrete. You walking with shoes on exert about 10 PSI, well below anything that could damage the new pour.
It is usually best to wait 3 days before allowing automobiles to use the driveway. 4. How long before I can drive or walk on new asphalt? You may walk on your new driveway immediately, however keep automobile traffic off for at least 5 full days and longer in hotter temperatures.