The word "cinderblock" refers to a heavy and strong block made of a mix of cement, sand, and ash. It is commonly used in construction to build walls or support structures.
In this way, the artist marks a conceptual transition in American discourse from the notion of utopic white picket fences to the barriers of cinderblock walls and the lateral, stained wood fences commonly put in place when a home in a low - income community has been purchased by new socioeconomic groups moving in. (vincentpriceartmuseum.org)
In my research into the wall system I discovered that Jackson Pollock, Rauschenberg, and Rothko — among many others — did shows where they hung their paintings on cinderblock walls, because they're cheap and quick. (dismagazine.com)
(They had to use a different type of decorative cinderblock on the addition. (theletteredcottage.net)