Kinds Of Concrete Blocks Or Concrete Masonry Pieces Utilized In Building Construction

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

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

The normal size 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 can be used 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 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 on the structure, shape, size and manufacturing processes concrete blocks are mainly classified into 2 types and they're:

Solid concrete blocks
Hollow concrete Blocks


Solid Concrete Blocks

Solid concrete blocks are generally used, that happen to be heavy in weight and made of dense aggregate. They are very strong and gives good stability for the structures. So for giant work of masonry like for load bearing walls these solid blocks are preferable. They are available in large sizes in comparison with bricks. So, it will require a shorter 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 might be split up into several components based on our requirement. These are constructed from lightweight aggregates. They are lightweight blocks and straightforward to set up.

Forms 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 used at the ends or corners of masonry. The ends could be window or door openings etc. they are arranged in ways that their plane end visible out and other end is locked with the stretcher block.

Concrete Corner Blocks
Corner blocks are employed in the ends or corners of masonry. The ends may be door or window openings etc. they're arranged in a way that their plane end visible facing outward and other end is locked with all the stretcher block.

Concrete Pillar Blocks
Pillar block can be known as double corner block. Generally these are generally used when two ends with the corner are visible. In case there is piers or pillars these blocks are widely used.

Jamb Concrete Blocks
Jamb blocks are widely-used when there is an elaborated window opening in the wall. They're connected to stretcher and corner blocks. For that provision of double hung windows, jamb blocks are incredibly useful to provide space for the casing individuals 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 two to three components in the event of partition blocks.

Lintel Blocks
Lintel block or beam block is used for the purpose of provision of beam or lintel beam. Lintel beam is normally provided at the top portion of windows and doors, which bears the strain originating from top. Concrete lintel blocks have deep groove down the period of block as shown in figure. After placing the blocks, this groove is stuffed with concrete together with reinforcement.

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

Bullnose Concrete Block
Bullnose blocks act like corner blocks. Their duties also same however when we'd like rounded edges at corner bullnose bricks are preferred.


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