Q: I just bought a house and one of my first projects is removing an old, cracked concrete patio in order to replace it with a new deck. How can I dispose of the old concrete? A: Concrete is a little ...

Production of the cement used in concrete is a huge source of CO2 emissions, so the more that we can recycle existing concrete, the better. That's where a new study comes in, which indicates that ...

The waste sector operates in some of the toughest conditions imaginable, but with informed design, modern material ...

Worldwide consumption of concrete is estimated at 20 billion tonnes. To produce such a huge volume of concrete, we need 14 billion tonnes of natural aggregate. To supply aggregate, it is necessary to ...