Hollow Block

The concrete block which has a core-zero area of more than 25% of the total surface area is known as a hollow block.

Hollow blocks are lighter than conventional concrete blocks. These types of blocks are used for partition walls.

Features of Hollow Blocks:

  • They have more than 25% air space of the total block area.
  • They are very lightweight compare to traditional concrete blocks.
  • Hollow blocks save material cost due to the presence of holes.
  • They are very compatible with electrical and plumbing fixtures due to the presence of holes.

Advantages of Hollow Blocks:

  • It saves material cost.
  • They are very lightweight and easy to transport.
  • Placing is easy.
  • They provide thermal insulation.
  • Hollow blocks are good for sound insulation due to cavity space.
  • They are fire-resistant.

Disadvantages of Hollow Blocks:

  • Bearing capacity is very poor.
  • Compressive strength is less compare to traditional concrete blocks.

Uses of Hollow Blocks:

  • Hollow blocks are used for the construction of partition walls.
  • They can be used for temporary structures.

Size of Hollow Blocks:

The most common sizes of hollow blocks are as follows:

  • 0.40 m x 0.20 m x 0.30 m.
  • 0.40 m x 0.20 m x 0.20 m.
  • 0.40 m x 0.20 m x 0.10 m.

Note: Size are given as (length x width x height)


Howdy! I am Mohd Suhel founder of civilmint.com. I made this blog to provide free education in various Engineering disciplines such as Civil Engineering, Mechanical Engineering, Electrical Engineering, Electronics Engineering, and Chemical Engineering.

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