Concrete blocks are basic construction materials. Recently, gray color concrete blocks were redesigned introducing new varieties in size, shape, color and texture. In that manner, they provide beautiful and functional constructions, ensuring popularity amongst constructors, engineers and mainly architects, due to creation flexibility to serve projects such as housing, hospitals, schools, middle and high class commercial and residential buildings, popular housing.

The benefits obtained through the constructive system differentiate concrete blocks introducing them as an excellent option:

• Dimensions precision and modulation
• Construction without templates
• Walls without external coating
• Walls inlaid piping
• Minimum waste, without rubbish generation

Various block types are manufactured in Brazil by color, shape and dimension. The most common templates follow:

structural	sealant
channeled	split