If you have a car that has dried cement stuck to the surface, there are a few things you can do to try and remove it. The first thing you can do is pour a pot of boiling water onto the cement and wait until it has cooled. Then, use a plunger to suction onto the cement and pull. Be careful not to burn yourself with the hot water. If that doesn’t work, you can try using a wire brush to scrub the cement off. Make sure to wear gloves and avoid getting any of the adhesive on your skin. Finally, use a bucket of soapy water and rinse off the cement residue. ..