Concrete Grade By Noel Mades Posted on February 12, 2018 In No Comments Tweet Pin It Concrete grade C25/20 and C30/20: These concrete grades are used in for blinding, and foundation or road leveling. About the Author Noel My Other Posts Hi! I am Noel Mades. I am the author of this site. Welcome, and thank you for visiting my site. Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.