Concrete 101 - How This Stuff Actually Works
If you're looking at a cracked sidewalk or thinking about pouring a new patio, getting a handle on concrete 101 is the best place to start before you head to the hardware store. Most people think of concrete as just "wet rocks" that turn into "dry rocks," but it's actually a pretty cool chemical reaction that has literally built the modern world. If you get the basics right, you can build stuff that lasts a lifetime. If you mess it up, you're going to spend the next five years staring at a giant, crumbling grey eyesore. ...