Monthly Archives: November 2017

Debunking of common “Myths” related to AAC Blocks

AAC blocks are a revolutionary building material that can transform the way construction projects are carried out in India. And Magicrete is proud to be a leading manufacturer and supplier of these blocks to various sectors in India today. Made from fly-ash, these blocks are eco-friendly, lightweight, durable, resistant to heat, moisture, earthquakes and pests, and can be modified easily as per requirement. Yet, many professionals as well as laymen harbour certain misconceptions about the nature and effectiveness of AAC blocks. Well, it’s time to debunk the most popular myths about these revolutionary products, so that you can gain confidence about using them in different structures.

 strenght comparison

Myth #1 – Walls made of AAC blocks are not strong enough


AAC blocks have strength of more than (4N/mm2 (MPa) as per IS: 2185-Part III. Clay bricks on the other hand have compressive strength of about 3.5 N/mm2 and the most commonly used CC blocks have strength of 3.6 N/mm2. Hence, AAC blocks are very strong, robust and safe, even when compared to bricks or CC blocks. As a result, they can be conveniently used for different kinds of wall construction.


Myth #2 – Due to lightweight property, AAC blocks cannot be used in high-rise buildings


AAC blocks weigh one-third of what clay bricks weigh, and this is all the more reason why they should be used in high-rise buildings. They help reduce the total dead load of the building, which contributes to structural savings by up to 20%. And this lightweight property also helps to reduce the chances of damage from earthquakes.


Myth #3 – Cellular lightweight concrete blocks and AAC blocks are the same thing

No, they are not same at all. Though AAC blocks and cellular concrete blocks look similar, they are different on several parameters. AAC blocks are more preferable due to these reasons:




AAC blocks have higher strength parameter of 4N/mm2(MPa) Strength parameter of CLC blocks is (2.5N/mm2(MPa)



Myth #4 – Low availability of AAC blocks during monsoon, just like clay bricks

No, procuring AAC blocks is never difficult, no matter what the season is. Traditional clay bricks are produced in kilns, so naturally their production and supply plummets during rains. But AAC blocks are manufactured in autoclaves in factories and are hence free from the effects of monsoon.


Myth #5 – Specialized masonry skills required for AAC applications


Not at all. Regular masons with basic training can work with AAC Blocks easily. Normal masonry practices are applicable in the masonry work of AAC blocks, as they adhere to IS: 6041-1985 (required for AAC Block masonry). Also, the amount of plaster and mortar needed for installing AAC blocks is much less than for traditional clay bricks. Though special masonry skills are not needed, the tools used for installing AAC blocks must be specific. The right tools will also offer high quality and productivity.

Myth #6 – AAC blocks increase the cost of construction

Actually, it does the reverse. AAC blocks can reduce the construction cost by almost 30%. You will derive maximum benefits if you use Magicrete AAC blocks from the design stage onwards. By using Magicrete blocks, you can also lessen the life cycle cost, which is not possible with clay bricks or CLC blocks. Also, by using AAC blocks, the load transmitted on RCC from the structure goes down by 10 to 15%.

Myth #7 – Cutting AAC walls for conducting and plumbing is difficult

Since AAC blocks are cellular in structure and lightweight, they can be easily cut and shaped as per your wish. They also work well with screws and nails, and chases can be created in them to install electrical and plumbing lines. But you will have to use specific tools like the electric chaser machine to get accurate results without impacting the walls. Definitely avoid the use of normal chisel for manual chasing.


Myth #8 – AAC walls have water seepage problem

No, AAC blocks feature discontinuous air pores that don’t allow water to pass through. Red clay bricks on the other hand absorb a lot of water due to high capillary action. Naturally, AAC blocks also discourage the nesting and growth of termites, mould and mildew.

8 interesting facts about AAC

AAC blocks or Autoclaved Aerated Concrete are a lightweight and environment-friendly alternative to clay bricks, and has bring significant change in the construction industry in India. Magicrete is the leading manufacturer and supplier of these blocks in the northern and western parts of India, and aims to make modern buildings more sustainable, safer, stronger and healthier than ever before. Made with fly-ash, AAC blocks are much lighter than clay bricks, durable, have high load-bearing capabilities and are available in different sizes, shapes and strengths. They are easy to use and reduce project costs as well.

Here’s a look at the 7 interesting features of these blocks:

  1. Invention – The Swedish architect Dr. Johan Axel Eriksson invented the AAC blocks, when he was working at the Royal Institute of Technology with Professor Henrik Kreüger. The blocks drew commercial interest and the first large-scale manufacturing facility of these artificially-made crystalized stone blocks was set up in 1929. This was done under the name Yxhult at a factory, Yxhults Stenhuggeri Aktibolag.
  2. European popularity – 60% of all the structures in Germany and 40% of those in UK are made with AAC blocks.
  3. Eco-friendliness– Since AAC blocks are friendly towards environment, as they don’t pollute land, air or water while being manufactured or used in construction sites. They use up very little energy during the production process as well. Moreover, they are made up of flyash which is a national waste.
  4. Fire and earthquake resistant–Since AAC blocks by offer high thermal insulation, they can resist fire for upto 2 to 6 hours. They are lightweight as well unlike clay bricks, and reduce the deadweight of a building significantly. This in turn enhances the stability of the structure and resists earthquakes.
  5. Fast construction and cost-effective –Not only are the AAC blocks easy to handle, they can be modified with saws and drills to suit individual requirements. So, a wide array of designs can be achieved with them. Hence, putting together even complicated structures becomes a piece of cake! Plus, AAC blocks are 9 times the size of clay bricks thus have minimal joints. Naturally, installation ease is increased and time needed reduced. Masonry work becomes simpler, leading to reduced labor costs and quicker construction.

Since AAC blocks are almost 80% lighter than conventional clay bricks, they reduce the deadweight of a structure incredibly. Hence, lesser amount of steel and cement is needed, which lowers the cost of the project. Also, the transportation cost of these blocks becomes very low.


  1. Resistant to sound–AAC blocks can absorb sound efficiently, making them suitable for constructing hospitals, studios, auditoriums and hotels. Also, houses built with AAC comfortable for children and old age, as they will keep outside noises away, hence ensure sound sleep.

AAC Blocks can provide STC rating of 44db.

  1. Resistant to pests and Termite– AAC blocks is made of an inorganic materials which keep pests and termites at bay. This way, you don’t have to use harmful chemicals or sprays inside homes, to ensure hygiene and cleanliness.


Besides all the advantages of AAC blocks mentioned above, it might also interest you to know that these blocks have high compressive strength. Plus, they come in consistent sizes and shapes, so that walls look uniform and aesthetic.

Magicrete is a frontline manufacturer and supplier of these eco-friendly and sustainable blocks in India, and is all set to make the construction industry in India smarter.


7 Steps to Happiness and Productivity (Vaastu Tips for Your Home and Office)

Vaastu has been known as one of the most effective and widely used traditional sciences for setting home and office spaces for years. According to its directional rules, through Vaastu, one can experience constant good luck, happiness, and prosperity.


Vaastu Shastra (as it is known traditionally) is an ancient Indian science that is based on the arrangement of furniture, plants and other elements usually found within any indoor environment in the right direction that is conducive to positive influences on home life or/and the business. This also includes avoidance of certain arrangement patterns that are unfavorable to the happiness and prosperity of your family. One can say that Vaastu Shastra is the Indian equivalent of the Chinese Feng Shui.


Following the rules of Vaastu in your homes and office spaces is crucial so that you can keep bad luck and misfortune away and allow the positive vibrations to bring satisfaction to your work and family life equally.


Vaastu Shastra is a science that is prevalent all over India and is a study that is believed by people across the nation. Everything that is specified in the Vaastu Shastra has a scientific reason behind it, and nothing that it specifies is an outcome of blind faith or illogical misconceptions.


Although there are several rules encompassed by Vaastu, there are a few that you need to remember and implement in the interior design of both your home and office.


1) Treat a home like a home and an office like an office: It is important that you keep a distinct separation between your workplace and home elements. Your office should not have any of the home-related elements in there such as having dinner, any pets, TV or any other thing that you associate with the home environment. Similarly, you should not carry your work home with you. The reason is that Vaastu requires that the office and home energies do not mingle with each other, thus interfering with one another’s effectiveness.


2) North Is Up and Up Is Progress: Your home or office should always be located in the north direction. According to Vaastu, North is considered to be an auspicious direction that is conducive to progress and happiness. Therefore, when you are looking to buy a house or an office space, it is favorable to buy one that is located in the North direction.


3) Fire up the Energy in The South-East: According to Vaastu, the South-East of your home and office represent fire elements which are a symbolism for energy, enthusiasm, industriousness, and pro-activeness. This is the direction that is best suited for keeping your work-related electronics, especially your computers and your lamp. This goes for both your office space and your home. You can perhaps have the children’s study room or the library in the South-East direction of your house to ensure maximum productivity. However, positively avoid placing water elements such as a fountain in the South-East direction.


4) Keep It Clutter-Free: Clutter in your home or office represents confusion, chaos, and trouble which emanates a bit of negative energy. In fact, this can be tested on a personal level as whenever your room is cluttered, you cannot focus on the job properly and cannot get it done right, on time. According to Vaastu Shastra, the negative energy emanating from the clutter interferes with your productivity and hence, cluttering of a room or a workspace should be avoided at all costs.


5) Brahmasthan, the Centre: Brahmasthan, that is the centre of your house or office, is always to be kept empty and hence, free of obstacles. Working right in the middle of your house/office is bound to bring conflicts, pressure and problems in your work as well as your personal life.


6) Further the Toilet, the Better it is: According to the Vaastu Shastra, a toilet signifies bad energy for obvious reasons. Therefore, the location of your toilet should not be next to the wall of your work desk in your home or office. In fact, the lavatory should be away from any points of positive influence in your home.


7) Fountain in the North-East: The North-East corner of your home or office requires a water element such as an indoor fountain that will spread positive energy and help you focus better on your work. The water element in Vaastu is considered as a positive influence and has its significance in bringing positivity to your work and personal life. The only thing that you need to remember here is that it should not interfere with other positive elements and hence, should be located in the right place.


Although the Vaastu Shastra is expansive, it is more than enough when you follow these basic laws.