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AAC Blocks

AAC Blocks


Experience the Future of Construction with Magicrete, serving as the largest producer of AAC blocks in India, we cater to regions across North, West, and South India, ensuring accessibility and excellence nationwide. 

Magicrete AAC blocks represent a new era in construction materials, offering unmatched strength, lightweight design, and eco-friendliness. Manufactured using fly ash, cement, lime, and aeration agents, our product adheres to IS 2185 Part-3 standards, ensuring top-notch quality. These blocks serve as an excellent substitute for clay bricks and concrete blocks, making them a green building product that reduces carbon footprint.

Constructed from recycled materials with zero wastage, Magicrete AAC Blocks accelerate construction by up to 4 times than clay bricks, due to their size, dimensional accuracy and easy workability. Their factory-finished surface accepts renders and plasters effortlessly, while standard tools make cutting, sawing, chiseling, drilling, and shaping a breeze.

With unmatched properties including being super lightweight, non-combustible, and offering exceptional thermal and acoustic insulation, Magicrete AAC Blocks ensure a safe, durable, and comfortable living environment. Say goodbye to termites, rodents, pests, and fungal growth, as our blocks feature a solid construction that eliminates cavities.

Experience guaranteed savings with Magicrete AAC Blocks, reducing building foundation load by up to 28% and power consumption by 30%. Enjoy significant savings on steel and cement, with reductions of 15% and 12% respectively.


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Suitable For: Residential, Commercial Size: 75mm, 100mm, 125mm, 150mm, 200mm, 225mm

Features

Lightweight

Lightweight

Boasts an exceptional lightweight nature, weighing only 1/3rd of red bricks. It reduces the overall structural load, resulting in cost savings of up to 15%.

Superior Strength

Superior Strength

Offers a remarkable strength of 4N/mm2, surpassing the strength of red clay bricks.

Thermal Insulation

Thermal Insulation

Boast industry's highest thermal rating of 0.16 W/(m⋅K), AAC blocks ensure 30% lower HVAC expenses, reducing heat transfer and improving indoor temperatures.

Earthquake Resistant

Earthquake Resistant

Lightweight AAC Blocks exhibit remarkable earthquake resistance, preferred in seismic zones, and proven to withstand Category 5 wind loads.

Fire Resistant

Fire Resistant

Its unique cellular structure provides unbeatable resistance against flames, with a best-in-class fire rating of more than 4 hours.

Sound Resistant

Sound Resistant

Closed air pockets in AAC blocks yield an STC rating of 44, offering superior sound insulation for virtually soundproof interiors.

Technical Specification

PARAMETERS SPECIFICATIONS
Density 550-650 kg/m3 (Oven Dry)
Compressive Strength 4 N/mm2
Modulus of Elasticity 2040 N/mm2
Coefficient of Thermal Expansion 8.1 x 10 -6 K -1
Water Absorption 8% (at equilibrium)
Thermal Conductivity 0.16 W/(m.K)
Drying Shrinkage 0.04%
Fire Resistance 4 Hrs. (150mm wall)
STC Rating 43db (100mm wall)

AAC Blocks Calculator

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Knowledge Base

FAQs

What is AAC Block?

Autoclaved Aerated Concrete (AAC) block is a precast, lightweight, and insulating green building product used as walling material and a replacement for bricks, CLC Blocks, etc. In addition, due to solid thermal insulation, AAC blocks also use special applications such as firewalls, sound walls, roof tiling, etc. Magicrete AAC Blocks manufactures these products at its state-of-the-art plant with the latest innovations under advanced technology in Surat under the Brand name "Magicrete AAC Blocks."

Is AAC a new product?

AAC blocks have been in use for more than 90 years across the Globe. Structures built over 85 years ago are still standing today. However, for India, this is an evolving product.

When was AAC first developed?

AAC was developed in 1924 in Sweden by an architectural science lecturer looking for alternate building material with properties similar to wood, such as good thermal insulation, solid structure and easy to work, etc., and having resistance against fire and termite.

Which materials are used to make Magicrete AAC Blocks?

Cement, Fly ash, and Lime are the critical ingredients for making Magicrete AAC Blocks. Their curing takes place under steam curing, known as Autoclave. Due to sustainable material envelope, these products are certified under the green rating system and help builders get credit points.

Is Magicrete AAC Block an environment-friendly and certified green product?

Yes. Magicrete AAC Blocks is an environmentally friendly construction material. Magicrete AAC Blocks products conserve and protect the earth's precious natural resources, unlike bricks which consume the topsoil. Magicrete AAC Blocks manufacturing occurs from fly ash, an industrial waste from a thermal power plant. During manufacturing, the energy consumed in the production process is only a fraction compared to the production of other materials. The manufacturing process emits no pollutants and creates no by-products or toxic waste products. Virtually no waste is generated during the wall installation, and this product consumes significantly less water. Magicrete AAC Blocks, a non-toxic product, does not pollute the air, land, or water during disposal. Due to its resource efficiency and material envelope, one can earn many credits in the green certification process such as LEED, GRIHA, etc.

Are AAC blocks environmentally friendly?

Yes. Magicrete AAC Blocks is an environmentally friendly construction material. Magicrete AAC Blocks products conserve and protect the earth's precious natural resources, unlike bricks which consume the topsoil. Magicrete AAC Blocks manufacturing occurs from fly ash, an industrial waste from a thermal power plant. During manufacturing, the energy consumed in the production process is only a fraction compared to the production of other materials. The manufacturing process emits no pollutants and creates no by-products or toxic waste products. Virtually no waste is generated during the wall installation, and this product consumes significantly less water. Magicrete AAC Blocks, a non-toxic product, does not pollute the air, land, or water during disposal. Due to its resource efficiency and material envelope, one can earn many credits in the green certification process such as LEED, GRIHA, etc.

How strong are AAC blocks?

The strength of Magicrete AAC Blocks is as per IS: 2185-Part III which is absolutely safe and strong enough to use for any non-load-bearing walling applications.

Is Magicrete AAC Blocks advisable to use in high-rise buildings?

Yes, Being lightweight (1/3rd weight of clay bricks), Magicrete AAC Blocks are highly recommended for high-rise buildings and help reduce the total dead load of the structure, which directly helps in structural savings up to 20%.

Sometimes, cracks appear in the AAC Block wall. What may be the reason?

Deflection of the beam, soil settlement to one side, the uneven placing of blocks during construction are some reasons for wall cracking. Other reasons are structural Movements due to Thermal Expansion or change in moisture content or moisture movement. To avoid such damage, you should delay the AAC blocks' use until equilibrium moisture content. For this purpose, AAC blocks must be stored 10-15 days before application. Cracks appear in all types of concrete, including clay brick. We can minimize these cracks by using some construction techniques and proper workmanship. Leveling of blocks should be accurate and must be checked using Spirit level, preferably of 2-meter length. The First Course of Blocks should have sufficient time to set, and you should provide at least 24 hours for this purpose. There should be enough time for the framed structure to cure and settle so that you can notice any change in design due to structural movement. There should be a Control Joint of 10 mm after every 3 meters from the bottom to the top of the wall. Control joint must get filled with resilient material or backer-rod, which are easier to compress. And seal with caulking. Expansion Joint Ties must be given after every 3rd course and placed between gaps of control joint. The bond beam must be passed every 1200 mm in height using reinforcement of two MS rods of 8 mm tied with 6-8 mm steel with a gap of 6" -9". The minimum thickness of the bond beam must be taken 3" with concrete cover 15-20 mm on sides. The bond beam must be discontinuous at the control joint. Steel rods must be embedded in columns 5-6 times their diameter and fixed using non-shrinkable high-strength grout. Take Cement: Sand ratio 1:4 as Mortar Mix for filling the bond beam. The reason to provide a bond beam is to give Stability and Strength to the wall. After every 3rd course, there should be wall ties between the block and Concrete column.

What are the guidelines to construct a wall using AAC Blocks?

You can use AAC Blocks to construct all types of walls between two columns in framed structures like partition, curtain, balcony, and boundary walls.

What about the water absorption of AAC Blocks, and what is its standard?

Water Absorption Test at 24-hour water immersion is not given in Standard of AAC Blocks IS-2185 Part-3. It is advised to test thermal insulating wall elements like AAC for Capillary water absorption. AAC is most superior for capillary water absorption compared to a conventional brick. Like Red Clay brick, AAC is not recommended in foundations and a damp environment, so a water absorption test is not applicable for AAC.

What about the breakage and chipping norms for AAC Blocks?

Due to different reasons, blocks may damage during transport or handling at the site. This can be used as half-cut blocks after size cutting. Indian Standard IS-2185 Part-3 Clause 8.1.1 allows slight cracks and minor chipping not larger than 25 mm and shall not be deemed grounds for rejection.

Can we use AAC blocks in Foundation?

No, AAC blocks are not recommended in the Foundation, and where high dampness is there.

What is its disadvantage?

Since it is highly porous, its water absorption is higher than the Red Clay brick if immersed in water for 24 hours. So it's not recommended to use in specific applications like Foundation, sewer-hole, and concrete water tanks.

It is said that Building constructed with AAC saves electricity; how?

AAC has thermal insulating properties; its thermal conductivity is 1/5th of clay brick. So AAC conserves the heat for a more extended period and saves energy costs due to air conditioning or room heater.

Is there any Indian Standard Code?

Yes. IS-2185 Part-3 is the Indian Standard Specification for AAC Blocks.

Does AAC catch fire, and what about its fire Rating?

No, AAC does not catch fire, and its fire Rating is 4 Hours for an 8-inch wall.

If we want to test the compressive strength of AAC Blocks at the site, what is required?

It would be best to have a Low Capacity compression testing machine of 250 KN and a Cutting Machine. High Capacity Machines of 2000-3000 KN are not recommended to use. Instead, follow the testing guidelines as mentioned in IS-6441 Part-5.

When we check Density, it is observed 700-750, but you claim as between 551-650 Kg/m3.

There is a difference between immediate density and oven-dry density. AAC blocks have certain moisture content in normal conditions, so their density is higher. Still, for testing purposes, we dry the sample at 105 °C for 4-5 days till constant weight is achieved, and then we obtain moisture-free density or dry density. Refer IS-6441 Part-1 for testing the oven-dry density.

How durable is AAC in various climates?

Autoclaved aerated concrete is highly durable. It does not rot or decay like wood or other organic materials. Also, it does not rust like metal. Termites and other pests do not eat it. AAC will not burn. The millions of tiny cells in AAC cushion buildings from the significant force, preventing progressive collapse. AAC has withstood earthquakes in Japan, the frigid temperatures of northern Europe, the harsh salt air of the French Riveria, and the hillside fires of San Francisco.

Is a vapor barrier required in exterior applications?

No. AAC construction provides a solid, monolithic wall system with an enclosed, non-connected cellular structure. Exterior finishes complement this structure, providing a healthy balance between moisture resistance and vapor diffusion. In addition, the positive pressure of the air conditioning system pushes water vapor out through the walls while preventing moisture penetration from the exteriors.

Is cellular lightweight concrete block similar to AAC block?

Even though they appear to be similar, they are different products. CLC strength parameters are 25 kg per sq.cm. Whereas AAC block strength is 35 to 40kg per sq. cm. CLC cannot be cut with wires, and the edges are not accurate and easily damageable. The CLC is cured in conventional methods, and the AAC is ready for use with adequate strength at the post-production stage due to its advanced autoclaved curing process. Unlike AAC blocks, CLC blocks give rise to the release of toxic gases.

Can we use it for load-bearing structures?

Yes. You can use Magicrete AAC Blocks for load-bearing structures up to 3 storeys.

Should we soak and make the block wet before usage?

No. Soaking and wetting of the AAC are not needed. Slight wetting is sufficient.

How many make a cubic meter of AAC?

42 Magicrete blocks of 600 X 200 X 200 mm dimensions make a CBM.

Do you supply or recommend any unique admixture for better bonding the AAC blocks?

Yes, we do. We manufacture and supply adhesive for AAC blocks.

Why Magicrete AAC Blocks?

1. Range of Products ● First AAC Company to provide complete walling solutions ● Grade 1 Material, 33% Higher Strength ● ISI Marked
2. World Class Infrastructure ● India's top 3 AAC players with 800,000 CBM annual installed capacity ● Strategically located within 250kms of major urban centers and thermal power plants ● Present in 14 states, top 30 Indian cities through more than 2000 retail outlets. ● You can achieve operational excellence through TPM as a strategic tool and SOP-driven systems.
3. Technology Driven ● SCADAI HMI ((Automation Rate) ● Automated Dispatch Module ● Quality Management Module ● CRM
4. Value-Added Services ● Freemasonry training and audits ● Online Test Report ● Just in time delivery for improved supply chain management ● Online order status monitoring with automated dispatch information ● Dedicated call center for customer complaints

What kind of testing equipment is required to test the compressive strength of AAC blocks?

● Compressive Testing Machine (CTM) should permit reading of ultimate load with a maximum error of (+/-) 2.0 %. ● The load Rate should be 0.5 to 2 kg/ sq. cm so that failure occurs within 30 seconds. ● Drying Oven

What is the procedure for testing the compressive strength of AAC blocks?

● The specimen shall be oven dry at 105+/-5 degrees Celsius for 4 hours or could be repeated several times to achieve the moisture content of the sample to be 8% to 12% ● Specimen surfaces shall be equal to the pressure surface of CTM. ● The direction of load shall be perpendicular to the direction of the rise of mass during production. ● The loading rate should be 0.5 to 2 kg/sq.cm so that failure occurs within 30 seconds.

What are the standard sizes of Magicrete AAC blocks?

Magicrete AAC Blocks: Sizes: Magicrete AAC Blocks are available in following sizes / Thickness / Length & Heights: Standard Sizes of Blocks: Thickness: 75/100/125/150/200/225mm Length: 625/600 mm Height: 240 / 200 mm

How many blocks are required for the 100 sq. ft masonry work?

● For 100 Sft. (9.29 Sq.m) masonry work / wall area = 63.15 i.e. 63 Nos. (For 240 mm Height Blocks) ● For 100 Sft. (9.29 Sq.m) masonry work / wall area = 72.52 i.e. 73 Nos. (For 200 mm Height Blocks) ● Blocks of standard size are to be provided considering cement mortar joint thickness of 10 mm.

What are the Benefits and Advantages of Magicrete AAC blocks?

● Light Weight ● Cost-Effective ● High Thermal Insulation ● Fire Resistance ● Acoustic Insulation ● Moisture, Pest, and Mold Resistant ● Earthquake Resistance ● Environment Friendly

Where can AAC blocks be used in construction?

Magicrete AAC Blocks finds its use in large walling applications across various segments such as Residential Buildings, Commercial Complexes and Offices, Hotels and Hospitals, Educational Institutes, Industrial Buildings, and infrastructures, etc. Due to solid thermal insulation, Magicrete AAC Blocks also find use in specialty applications such as firewalls, sound walls, roof tiling, etc.

Is there any Indian Standard Code for the use and application of AAC Blocks?

Yes, IS-6041 (Code of Practice for Construction of Autoclaved Cellular Concrete Block Masonry). IS-6041: Code of Practice for Structural Use of Unreinforced Masonry.

Can we do chasing, conducting, cutting, plumbing with Magicrete AAC Blocks?

Yes, it is possible. Chasing lines can be done with proper hand or machine tools.

What special skills are required for the installation of Magicrete AAC Blocks?

Regular masons and labor can work on Magicrete AAC Blocks with minimal training. Standard masonry practices, which adhere to IS: 6041-1985 (for AAC Block masonry), are applied in Magicrete AAC Blocks masonry work. Care should be taken to ensure savings on mortar and plaster. Please refer to the best practices guide for further explanation.

What special tools are required for the installation of Magicrete AAC Blocks?

It is vital to use the right tools to get maximum productivity and quality to get maximum benefit and have brilliant walls. (You may refer to IS: 6041-1985).

Do I need any unique mortar mix and plasters for Magicrete AAC Blocks?

Magicrete AAC Blocks walls should be constructed with a much lesser mortar thickness. Thin bed mortars are ideal for this application. Since wall accuracy is far better with Magicrete AAC Blocks, plaster thickness also reduces.

What thickness of plaster is recommended on the Magicrete AAC Blocks wall?

As per IS:6041, in areas of moderate rainfall, there should be one coat of mortar (1:6 strength) application with a standard thickness of 10-12 mm. Thin bed mortars should be used for lesser thickness up to 3 to 4 mm.

Will my cost of construction increase with Magicrete AAC Blocks?

AAC Blocks reduce the cost of construction to about 30%. It offers a large number of Smart Benefits. Magicrete AAC Blocks should be considered right from the design stage to maximize benefits. One gets a better quality wall with Magicrete AAC Blocks. Depending on resources, life cycle cost can even be lower with Magicrete AAC Blocks compared with clay bricks or CLC blocks.

What is the weight of Magicrete AAC Blocks?

Magicrete AAC blocks are very lightweight. For example, 100 X 200 X 600 mm block will have around 7.2 Kgs of weight compared to brick with a dimension of 75 X 115 X 230 mm, which weighs approximately 3.57 Kgs.

What should I do with the blocks that break during the use?

You can cut the broken blocks easily to the desired size, and if there is rubble, you can use it to fill in immersed areas.

In which type of structures have Magicrete AAC Blocks been used?

Magicrete AAC Blocks finds its use in large walling applications across various segments such as Residential Buildings, Commercial Complexes and Offices, Hotels and Hospitals, Educational Institutes, Industrial Buildings, and infrastructures, etc. Due to solid thermal insulation, Magicrete AAC Blocks also find use in specialty applications such as firewalls, sound walls, roof tiling, etc.

Is it feasible to pursue chasing and nailing?

Chasing and nailing can be executed similarly to the process used with AAC Blocks. For nailing in particular, a special AAC Fastener must be utilized.

Can a 75mm depth be chased into a 100mm wall for the installation of a DB Junction Box?

Yes, it is feasible, and it will not compromise the overall strength of the wall.

How are electrical switches installed in the panel?

The process closely mirrors the approach used for AAC Blocks. A concrete cover of at least 40 mm is provided, allowing for straightforward chasing during installation.

Does the product enhance overall productivity?

AAC Wall Panels demonstrate a speed that is 16 times greater than traditional red bricks and 4 times faster than AAC Blocks. A team consisting of 3-4 semi-skilled workers can complete approximately 300 to 400 sq. ft. of wall in a single day, translating to around 80 to 100 sq. ft. of wall per laborer per day.

What are the typical sizes of Magicrete AAC Blocks?

Magicrete AAC Blocks are available in length of 600mm, the height of 200 or 250mm, and thicknesses from 75mm to 225mm. Please refer to technical specifications on our website or contact our marketing department for further information.

Does Magicrete provide technical assistance for the use of AAC Blocks?

Yes, we provide

What are the delivery timelines for Magicrete AAC Blocks?

Magicrete AAC Blocks is dispatched within 3-4 working days' time after confirmation of the order, and there is no seasonal variation in supplies.

I find it challenging to get clay bricks during rainy season. Will I also face some difficulty with Magicrete AAC Blocks?

No, there is no seasonal impact on the manufacturing process throughout the year.

Where can I place order for Magicrete AAC Blocks?

You can contact our marketing department on toll-free no 80 70 40 80 10, or you can also post your inquiry at our website (www.magicrete.in) or send mail at info@magicrete.in

How are Magicrete AAC Blocks better than concrete blocks?

Magicrete AAC Blocks are better than concrete blocks as they are lighter in weight (1/5th weight), have better thermal insulation (can save up to 20% energy), and have dimensional accuracy, leading to a more competent wall and savings of cement. Magicrete AAC blocks are much easier to work with as they can be sanded and cut easily.

How is Magicrete AAC Blocks better than clay bricks?

Magicrete AAC Blocks offer immense Smart Benefits when compared to clay bricks. They are lighter in weight (1/3rd weight of clay bricks), have a more prominent size, have much better thermal insulation, and are earthquake resistant. In addition, walls built with Magicrete AAC Blocks are dimensionally accurate and help save time, space, steel, cement, water, labor, and above all, it helps protect our Mother-Earth. In totality, they are the intelligent choice for intelligent people.

How is Magicrete AAC Blocks different from CLC blocks?

CLC Blocks has almost double the weight of Magicrete AAC Blocks. Magicrete AAC Blocks are much more accurate, durable, and robust, and Autoclaving helps get a much more consistent product.

Magicretes Comprehensive Walling Solutions: Building Excellence

Magicrete, a pioneer in the construction industry, offers a comprehensive range of innovative building materials. Among its diverse line up, the Walling Solutions segment stands out with an exceptional array of AAC products. This line includes high-quality AAC Blocks renowned for their lightweight yet robust construction, providing excellent thermal insulation. The AAC Wall Panels, another flagship offering, present a versatile and efficient solution for quick and durable walling needs. Moreover, Magicrete's Power Reinforcement Mesh, U-Blocks, and O-Blocks contribute significantly to structural integrity, offering reliable and sustainable construction solutions. With a commitment to quality and innovation, Magicrete's AAC Products redefine modern construction practices, ensuring efficiency, durability, and sustainability in every build.