Cement and concrete manufacturing emits as much carbon dioxide as India. We can’t stop building the homes, factories and roads we rely on, but we can and should stop cement’s unchecked emissions.

How to pour homemade molds If you opt to make your own mold, you’ll need to get your box and play sand. Fill the box with enough play sand to accommodate the tile and pack the sand down so that ...

The mixture of coffee grounds into the concrete has made it roughly 30 percent stronger, study lead Dr. Rajeev Roychand from RMIT University shared in a statement.

Coat the inside walls of your pot (outer mold) with cooking spray or oil and place it upside down over the inner mold. Mix up your concrete (follow these instructions and be sure to wear a mask ...

Make a mould First you need to make a mould for your canoe -- a positive mould where the canoe is moulded over the outside, not in a hollow. Glue the foam cubes together to create a 1m x 1m x 4m ...

Building concrete steps requires a whole bunch of switching back and forth between edgers and mags. One trick a lot of pros have figured out is that if you leave the tools face down on the ...