You mentioned "concrete/foam block" houses, but that is just one subset of a construction method called stay-in-place-forms. Another term for this construction method is insulated concrete forms.

The following companies offer foam/concrete housing materials: Conform Global, 800-266-3676, www.smartblock.com; Eco-Block, 800-293-3210, ...

Tile grout that has become heavily embedded with dirt, ... The paste mix will foam up. Immediately scrub with the nylon brush. Rinse with cool, clean water. 3. Clean With Hydrogen Peroxide.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By James Austin and Ellen Airhart The best way to clean tile and grout in ...

With the foam-block house construction, however, the concrete provides the structural strength for the walls and then is totally encapsulated by high R-value, rigid, insulating foam.

The latest 3D printing application? Forming concrete. That’s according to a team at ETH Zurich who claims that construction with foam forms cuts concrete usage up to 70%. It also offers impr… ...

So, if you need to tame out-of-control concrete, polyurethane foam is the environmentally safe, affordable, waterproof and, perhaps most importantly, permanent solution you’re looking for.