Builders pour concrete into temporary wooden molds. MIT researchers invented a way to make them out of on-site soil instead.

The Post-Tensioning Institute, in partnership with the American Concrete Institute, has released the digital version of the ACI/PTI Code-320-25: Post-Tensioned Structural Concrete—Code Requirements ...

I made my own 45 lb weight plates for under $10 using concrete, a trash can, and some PVC pipe. Commercial plates can cost up ...