Different Types Of Concrete Blocks Or Concrete Masonry Pieces Present In Construction Engineering

Concrete block masonry which is also known as concrete masonry unit (CMU) have advantages over brick and stone masonry.

Concrete blocks are produced in required shape and sizes which could possibly be solid or hollow blocks.

The most popular size concrete blocks is 39cm x 19cm x (30cm or 20 cm or 10cm) or 2 inch, 4 inch, 6 inch, 8 inch, 10 " and 12-inch unit configurations.

Cement, aggregate, water is employed to organize 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 approximately 3N/mm2. ASTM C-90-91 specifies the compressive strength requirements of concrete masonry units.

Types of Concrete Blocks or Concrete Masonry Units

Based upon the framework, shape, size and manufacturing processes concrete blocks are generally classified into 2 types plus they are:

Solid concrete blocks
Hollow concrete Blocks


Solid Concrete Blocks

Solid concrete blocks can be used, that happen to be heavy in weight and manufactured from dense aggregate. They may be quite strong and gives good stability on the structures. So for big work of masonry like for load bearing walls these solid blocks are preferable. They come in large sizes in comparison to bricks. So, it will take a shorter time to construct concrete masonry than brick masonry.


Hollow Concrete Blocks

Hollow concrete blocks contains void area in excess of 25% of gross area. Solid division of hollow bricks needs to be greater than 50%. The hollow part may be split up into several components determined by our requirement. These are manufactured from lightweight aggregates. These are transportable blocks and straightforward to setup.

Varieties 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 might be window or door openings etc. these are arranged in a manner that their plane end visible to the outside and also other end is locked together with the stretcher block.

Concrete Corner Blocks
Corner blocks are employed with the ends or corners of masonry. The ends could possibly be door or window openings etc. these are arranged in ways that their plane end visible to the outside and other end is locked together with the stretcher block.

Concrete Pillar Blocks
Pillar block is additionally called 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.

Jamb Concrete Blocks
Jamb blocks are employed if you find an elaborated window opening within the wall. They may be associated with stretcher and corner blocks. To the provision of double hung windows, jamb blocks have become useful to provide space for the casing individuals window.

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

Lintel Blocks
Lintel block or beam block is employed when it comes to provision of beam or lintel beam. Lintel beam is mostly provided on top portion of doors and windows, which bears the burden originating from top. Concrete lintel blocks have deep groove over the amount of block as shown in figure. After placing the blocks, this groove is full of concrete as well as reinforcement.

Frogged Brick Blocks
Frogged brick block has a frog on its top in addition to 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 are like corner blocks. Their duties also same but when we want rounded edges at corner bullnose bricks are preferred.


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