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Different Types Of Concrete Blocks Or Concrete Masonry Pieces Used In Building Construction

Concrete block masonry which is also referred to as concrete masonry unit (CMU) have advantages over brick and stone masonry.
Concrete blocks are manufactured in required shape and sizes and these might be solid or hollow blocks.
The most popular height and width of concrete blocks is 39cm x 19cm x (30cm or 20 cm or 10cm) or 2 inch, 4 inch, 6 inch, 8 inch, 10 inch and 12-inch unit configurations.
Cement, aggregate, water is utilized to get ready concrete blocks.
The cement-aggregate ratio in concrete blocks is 1:6. Aggregate used is of 60% fine aggregate and 40% coarse aggregate.
Their Minimum strength is all about 3N/mm2. ASTM C-90-91 specifies the compressive strength requirements of concrete masonry units.
Kinds of Concrete Blocks or Concrete Masonry Units
Based upon the structure, shape, size and manufacturing processes concrete blocks mostly are classified into 2 types and they are:
Solid concrete blocks
Hollow concrete Blocks

Solid Concrete Blocks
Solid concrete blocks are generally used, that are heavy in weight and manufactured from dense aggregate. They are strong and supplies good stability to the structures. So for large work of masonry like for load bearing walls these solid blocks are preferable. One can choose from large sizes in comparison with bricks. So, it will require less time to construct concrete masonry than brick masonry.

Hollow Concrete Blocks
Hollow concrete blocks contains void area greater than 25% of gross area. Solid part of hollow bricks ought to be greater than 50%. The hollow part could possibly be separated into several components according to our requirement. They're manufactured from lightweight aggregates. These are light-weight blocks and easy to install.
Kinds of Hollow Concrete Blocks:
Stretcher block
Corner block
Pillar block
Jamb block
Partition block
Lintel block
Frogged brick block
Bullnose block

Concrete Stretcher Blocks
Corner blocks are utilized with the ends or corners of masonry. The ends may be window or door openings etc. they may be arranged in a fashion that their plane end visible out as well as other end is locked together with the stretcher block.

Concrete Corner Blocks
Corner blocks are used with the ends or corners of masonry. The ends might be window or door openings etc. they are arranged in a fashion that their plane end visible out as well as other end is locked with all the stretcher block.

Concrete Pillar Blocks
Pillar block is also referred to as double corner block. Generally they're used when two ends in the corner are visible. In case of piers or pillars these blocks are widely used.

amb Concrete Blocks
Jamb blocks are used if you find an elaborated window opening from the wall. They are linked to stretcher and corner blocks. For the provision of double hung windows, jamb blocks are extremely necessary to provide space for that casing folks window.

Partition Concrete Block
Partition concrete blocks are often employed to build partition walls. Partition blocks have larger height than its breadth. Hollow part is split into 2 to 3 components in case there is partition blocks.

Lintel Blocks
Lintel block or beam block is utilized with regards to provision of beam or lintel beam. Lintel beam is usually provided at the top portion of doors and windows, which bears the strain via top. Concrete lintel blocks have deep groove across the amount of block as shown in figure. After placing the blocks, this groove is full of concrete together with reinforcement.

Frogged Brick Blocks
Frogged brick block posesses a frog on its top as well as header and stretcher like frogged brick. This frog will helps the block to carry mortar also to provide the strong bond with top laying block.

Bullnose Concrete Block
Bullnose blocks resemble corner blocks. Their duties also same but when we want rounded edges at corner bullnose bricks are preferred.
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