Types Of Concrete Blocks Or Concrete Masonry Items Utilized In Building Construction

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

Concrete blocks are designed 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 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.

Types of Concrete Blocks or Concrete Masonry Units

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

Solid concrete blocks

Hollow concrete Blocks

Solid Concrete Blocks

Solid concrete blocks are generally used, which can be heavy in weight and produced from dense aggregate. They're very good and supplies good stability to the structures. So for big work of masonry like for load bearing walls these solid blocks are preferable. They come in large sizes compared to bricks. So, it requires much less time to develop concrete masonry than brick masonry.

Hollow Concrete Blocks

Hollow concrete blocks contains void area higher than 25% of gross area. Solid section of hollow bricks should be over 50%. The hollow part may be split up into several components depending on our requirement. These are made of lightweight aggregates. These are transportable blocks and straightforward to put in.

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 be door or window openings etc. they are arranged in ways that their plane end visible facing outward along with other end is locked together with the stretcher block.

Concrete Corner Blocks

Corner blocks are utilized in the ends or corners of masonry. The ends could possibly be window or door openings etc. they're arranged in ways that their plane end visible external as well as other end is locked with the stretcher block.

Concrete Pillar Blocks

Pillar block can also be referred to as double corner block. Generally these are generally used when two ends of the corner are visible. In the event of piers or pillars these blocks are traditionally used.

Jamb Concrete Blocks

Jamb blocks are widely-used when there is an elaborated window opening inside the wall. They're attached to stretcher and corner blocks. For your provision of double hung windows, jamb blocks are incredibly helpful to provide space to the casing people in window.

Partition Concrete Block

Partition concrete blocks are likely to be utilized to build partition walls. Partition blocks have larger height than its breadth. Hollow part is split into 2-3 components in case of partition blocks.

Lintel Blocks

Lintel block or beam block is employed with regards to provision of beam or lintel beam. Lintel beam is normally provided on the top area of doors and windows, which bears the load via top. Concrete lintel blocks have deep groove over the period 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 together with header and stretcher like frogged brick. This frog will helps the block to hold mortar and provide the strong bond with top laying block.

Bullnose Concrete Block

Bullnose blocks act like corner blocks. Their duties also same when we wish rounded edges at corner bullnose bricks are preferred.

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