Hollow Blocks as a Building Construction Material in Pakistan
Introduction to Hollow Blocks
Hollow block Definition
The hollow block is a type of block that has been hollowed out from its center so that it is lighter in weight and provides better insulation properties than solid blocks and bricks. Hollow blocks are also called cavity blocks.
The empty space in the block can also be filled with supporting material or air to provide insulation. These blocks can come in various sizes, designs and compressive strength depending upon the construction requirements.
Hollow blocks provide excellent benefits compared to traditional bricks and are one of the most commonly used types of concrete blocks today.
Introduction to Concrete Hollow Blocks
Hollow concrete blocks are more commonly used in masonry structures. It speeds up the construction process, saves cement and steel, and reduces the workload on the construction site. These blocks reduce the dead weight of the masonry structure and improve the physical properties of the walls, such as sound and thermal insulation. They also provide facilities to hide power, water and ground wires.
When it comes to building or renovating, you want the best materials for the job – materials that will save your time and money. They are standard sized high-density or low-density cast concrete rectangular hollow blocks. They are quickly becoming one of the most popular building materials around, and for good reason.
Uses of Hollow Concrete Blocks in Construction
Hollow Concrete Blocks Are One of the Most Popular Building Materials Used in Construction.
Hollow concrete blocks are one of the most popular building materials used in construction. They have a ton of benefits that make them a great choice for both residential and commercial construction projects.
- Load-bearing exterior walls
- Load-bearing interior walls
- Curtain walls
- Walls for partition
- Walls for panel
- For fireproofing
- Hollow blocks retaining walls, columns etc
- Boundary walls
- Exterior structures, plazas and skyscrapers
- Boundary Fences
Advantages of Using Hollow Concrete Blocks as Building Construction Material
We will look at some of the major advantages of using concrete hollow blocks as your primary building material below:
They Are Cheap and Have a High Load-Bearing Capacity
Hollow concrete blocks are one of the best building construction materials because they are cheap and have a high load-bearing capacity.
For the budget-conscious builder, hollow concrete blocks are a great option because they are cheaper than traditional building materials like bricks and stone. They also have a higher load-bearing capacity, meaning you can build taller structures using fewer blocks.
Hollow Concrete Blocks Have Good Insulation Properties
Hollow concrete block is a great building material because they have good acoustic and thermal insulation properties. This means that they can help to keep your home or office cool in summer and warm in winter, which can save you a lot of money on your energy bills.
What’s more, hollow concrete blocks are easy and quick to install, which means you’ll save time on your construction project too. So if you’re looking for cost-effective, energy-efficient building material, make sure to consider using hollow concrete blocks.
They Are Fire Resistant and Have a High Fire Rating
One of the best things about using hollow concrete blocks for your construction projects is that they are fire resistant. In the event of a fire, the blocks will not melt or catch on fire, which could potentially save your home or building from burning down. They also have a high fire rating, meaning they will not contribute to the spread of a fire.
Hollow Concrete Blocks Are Termite Resistant and Have a Long Lifespan
Termites are a common problem in tropical climates, which is why hollow concrete blocks are such great building material. Unlike wood, which is a favourite food for termites, hollow concrete blocks are made with a special termite-resistant material that keeps these pests from eating through your walls.
In addition to being termite-resistant, hollow concrete blocks also have a long lifespan. They won’t rot or decay like wood, and they’re also fireproof and waterproof. This makes them a great choice for constructing buildings that will last for many years.
Hollow Concrete Blocks Are Easy to Install and Require Less Mortar
Hollow concrete blocks are a common choice for construction due to their many benefits. They’re easy to install, require less mortar, and are more cost-effective than traditional building materials.
Blocks can be used to create walls, floors, and ceilings, and can be adapted to any style or design. In addition, they’re fire-resistant and can withstand extreme weather conditions.
If you’re considering using hollow concrete blocks for your next project, contact us for advice on the best way to use them for your specific needs.
More Benefits of Using Hollow Blocks as Your Building Material:
- Eco-Friendly
- Work best against dampness
- Weather resistant
- Low water absorption
- Provide best bonding with cement mortar
- Light weight blocks
- Can construct thin walls
- High compressive strength
- No special machinery is required for construction with these blocks
- Low maintenance cost
- These blocks are long lasting
- Easier and speedy construction as compared to any other masonry material
- Minimized the labor cost of construction
- Every type of labour can work with these blocks
Shapes, Sizes, and Types of Hollow Concrete Blocks
There are a few different shapes, sizes, and types of hollow concrete blocks available on the market, so it’s important to do your research before you make a purchase. Some blocks are designed for specific applications, like construction or insulation.
Types of Hollow Concrete Blocks
- Partition Block
- Corner Block
- Stretcher Block
- Jamb Block
- Bullnose Block
- Lintel Block
- Frogged Brick Block
- Concrete Pillar Blocks
Dimensions of Hollow Concrete Block
Length: 16”
Height: 8”
Width: 8”
Classification of Hollow Concrete Blocks
- Open Cavity
- Close Cavity
Hollow Blocks Density
The Hollow Blocks can be found in two grades
“A” Grade: High density (1500 kg/m3) and high compressive strength (upto 15N/mm2)
“B” Grade: Low density (1100 to 1500 kg/m3 ) and low compressive strength (upto 5N/mm2)
Properties of Hollow Blocks
Moisture Movement (< 0.09%)
Water Absorption: (< 10%)
Drying Shrinkage: (< 0.06%)
Compressive Strength (3.5 to 15N/mm2)
Density (1100 to 1500 kg/m3 )
Concrete Hollow Blocks vs Ordinary Brick Comparison
Concrete Hollow Block | Ordinary Brick |
| Lower Cost (per sqft) | Higher Cost (per sqft) |
| Time Saving | Time Consuming |
| High Compressive Strength | Low Compressive Strength |
| Less Labour Required | More Labour Required |
| Superior Surface Finish | Poor Surface Finish |
| Less Pollution | More Pollution |
| Less Plastering Required | More Plastering Required |
| Different Shapes and Sizes | One Standard Shape and Size |
Uses of Hollow Blocks in Construction
- Load bearing exterior walls
- Load bearing interior walls
- Curtain walls
- Walls for partition
- Walls for panel
- For fireproofing
- Hollow blocks retaining walls, columns etc
- Boundary walls
- Exterior structures, plazas and skyscrapers
- Boundary Fences
5 Best tips for building construction projects with Concrete Hollow Blocks
Here are 5 tips to help you make the most of hollow concrete blocks when building your next project:
- Make sure to use a level when laying your blocks, as this will ensure a stable and even foundation.
- Stagger the blocks as you lay them, rather than placing them in a straight line. This will add extra stability to your structure.
- Use mortar to fill in the gaps between the blocks, for a stronger build.
- Make sure the blocks are in direct contact with each other, without any gaps, for best results.
- Use a damp cloth to clean any mortar or dust from the blocks before they are set.
Conclusion
Concrete blocks are an essential part of any construction project. But not all concrete blocks are created equal. Hollow concrete blocks offer a few distinct advantages over traditional concrete blocks.
First, hollow concrete blocks are cheaper than traditional blocks. This is because the core of the block is removed, leaving only the outer shell. This reduces the amount of material needed to make the block, which drives down the cost.
Second, hollow concrete blocks are lighter than traditional blocks. This makes them easier to work with and reduces the time needed to install them.
Finally, hollow concrete blocks are of the same top quality as traditional blocks. They are made from the same high-quality materials and are engineered to withstand the same levels of stress and strain.
If you’re looking for a cheap, lightweight, and durable building material, hollow concrete blocks should be at the top of your list.
Frequently Asked Questions
What is a hollow concrete block used for?
Hollow concrete blocks speed up the construction process, save cement and steel, and reduce the workload on the construction site.
Does a hollow block absorb water?
Yes, a hollow block will absorb water.
What is the Compressive Strength of hollow concrete blocks?
Compressive Strength can vary from manufacturer to manufacturer, we at Superbloks are proud to have around 1000psi for our Hollow Blocks.
Which is stronger, brick or Hollow concrete block?
Hollow concrete blocks wins here because of their high compressive strength.
Which is cheaper brick or hollow blocks?
Because of their Superior Surface Finish, less time, less labour and less mortar are needed with Hollow blocks as compared to traditional brick. Hollow blocks are a building material that will save both, your time and money.
