Varieties Of Concrete Blocks Or Concrete Masonry Pieces Utilized In Construction Engineering

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

Concrete blocks are produced in required shape and sizes and the 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 is used to arrange 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 around 3N/mm2. ASTM C-90-91 specifies the compressive strength requirements of concrete masonry units.

Varieties of Concrete Blocks or Concrete Masonry Units

Based upon the structure, shape, size and manufacturing processes concrete blocks are generally classified into 2 types and they're:

Solid concrete blocks
Hollow concrete Blocks


Solid Concrete Blocks

Solid concrete blocks are commonly used, that happen to be heavy in weight and produced from dense aggregate. They are very strong and offers good stability to the structures. So for big work of masonry like for load bearing walls these solid blocks are preferable. These come in large sizes when compared with bricks. So, it will take a shorter period to construct concrete masonry than brick masonry.


Hollow Concrete Blocks

Hollow concrete blocks contains void area in excess of 25% of gross area. Solid area of hollow bricks ought to be more than 50%. The hollow part could possibly be split up into several components determined by our requirement. They're manufactured from lightweight aggregates. They're lightweight blocks and straightforward to setup.

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 widely-used with the ends or corners of masonry. The ends could possibly be door or window openings etc. they may be arranged in a way that their plane end visible out along with other end is locked with the stretcher block.

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

Concrete Pillar Blocks
Pillar block can also be called as double corner block. Generally these are used when two ends from the corner are visible. In the event of piers or pillars these blocks are trusted.

Jamb Concrete Blocks
Jamb blocks are widely-used should there be an elaborated window opening in the wall. They may be attached to stretcher and corner blocks. For that provision of double hung windows, jamb blocks have become useful to provide space for your 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 case there is partition blocks.

Lintel Blocks
Lintel block or beam block is employed for the purpose of provision of beam or lintel beam. Lintel beam is generally provided in the top area of windows and doors, which bears the stress received from top. Concrete lintel blocks have deep groove over the length 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 contains a frog on its top together with header and stretcher like frogged brick. This frog will helps the block to support mortar also to develop the strong bond with top laying block.

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


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