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 ...

Ever wondered how concrete pavers are made and how sometimes they manage to look so random and yet fit perfectly together ...

This sheltering structure, made of 2-by-4 framing and plastic sheeting, allows workmen to lay concrete blocks in cold and rainy New Hampshire weather to keep a job moving forward. (Tim Carter/TNS) ...