Concrete block for retaining walls

Concrete block for use in fence or building construction

Concrete block for wall, walls having such blocks, and methods

Concrete block gabion

Concrete block panel

Concrete block wall panel

Concrete blocks containing used oils

Concrete building

Concrete building block

Concrete building blocks

Concrete building blocks

Concrete building form

Concrete building frame construction apparatus

Concrete building frame construction method

Concrete cable protector slab

Concrete cladding panel system

Concrete column form

Concrete column form for square columns

Concrete column forming tube having a tear strip therein

Concrete column with connections for steel beams