Concrete blocks are prefabricated materials primarily used for constructing walls. Similar to bricks, these blocks are stacked together and bonded with mortar, typically composed of cement, sand, and ...

Q: My house was built in the '40s and has a cinder-block foundation. On the inside, it has paint that's peeling. Some of the blocks are crumbling, but the problem is not deep, less than an inch. In ...

Shea Gunther is a writer, entrepreneur, and podcaster living in Portland, Maine. He covers topics such as renewable energy, climate change, and nature. A rocket stove is a super-efficient cooking and ...