"Cement blocks" typically refers to rectangular building blocks made from a mixture of cement, sand, and other materials. These blocks are used in construction to build walls and structures. Full definition
A character is repeatedly crushed with a rock and then hit in the head with cement blocks. (parentpreviews.com)
The larger villages announced themselves more slowly, one cement block house after another until we reached a clear center of town. (theexpeditioner.com)
I've seen the insulated cement blocks for home walls.... (builditsolar.com)