AAC blocks manufacturers in Maharashtra
Product Description
Rs. 38

MagicBlox AAC Blocks

What are AAC blocks?
Autoclaved Aerated Concrete (AAC) blocks are lightweight and durable building products. First conceptualized and invented by Swedish architect and inventor Johan Axel Eriksson in 1924, AAC blocks are particularly known for their fire, heat, and sound-resistant properties. Air being the major constituent (almost 80-85% by volume), these building products are typically lightweight, weighing only a third of the more common red clay bricks.

How are they made?
Common ingredients used in the production of AAC blocks include lime, cement, sand, water, gypsum, fly ash, and Calcium oxide (commonly known as quicklime). Aluminum powder reacts chemically with these and hydrogen gas escapes into the air towards the end of the procedure. It is this chemical reaction that lends AAC blocks their distinct honeycomb structure, lightness, and other insulation properties.
Having undergone necessary molding and mixing, these are further cured in an autoclave (subject to high heat and pressure) that imparts them the desired strength and durability.

What are the advantages of using AAC Blocks?
On an average, AAC blocks are 9 times the size of regular clay bricks. This translates to superior construction speed and quality, coupled with the formidable reduction of costs - on plaster and mortar - at the site. Importantly, best-in-class thermal insulation results in increased savings of Heating, Ventilation, and Air-conditioning (HVAC) costs.

Because of its high workability and flexibility standards, AAC material is widely used across the construction of residential buildings, healthcare facilities, schools, hotels, and other industrial/commercial structures

Features & Benefits
aac blocks india
Earthquake Resistant

Earthquake forces on structure are proportional to weight of the building, hence light weight blocks show excellent resistant to earthquake forces. Regions of high siesmic activities like Japan exclusively use AAC Fly Ash Blocks. It has been proven to withstand wind loads of category 5 tropical storms.

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Noise Pollution Resistant

With closed air pockets, AAC lightweight fly ash blocks can provide very good sound insulation/sound absorption with an STC(Sound Transmission Class) rating of 44. It can also be used as a sound barrier wall along busy roads. AAC wall has an excellent sound transmission class (STC) rating of 44. Result, virtually sound proof interiors.

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Water Resistant

Microscopic structure of lightweight block does not allow for capillary action making it impervious to water. Its water barrier properties are further enhanced by adding silicone based additives.

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Thermally Insulated

Highest thermal rating in the industry R30!. Its cellular structure provides well insulated interiors, keeping out warm air in summers and cold air in winters. AAC reduces air conditioning cost upto 30%.

aac blocks manufacturers in maharashtra
High Strength

High pressure steam-curing autoclaving process gives AAC fly ash blocks unmatchable strength to weight ratio, higher than even M 150 concrete, and far exceeds the Indian Building code requirements.

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Fire Resistant

Its unique cellular structure provides excellent fire rating. Due to this cellular structure AAC fly ask blocks do not disintegrate even in fire. It is best in class in fire rating of 4 hours. the melting point of AAC fly ash blocks are over 1600 degree celsius, more than twice the typical temperature in building 650 degree celcius.

Technical Specifications
Density Oven Dry 550-650 kg/m3
Compressive strength 4N/mm2 (MPa)
Shear Strength 0.6 N/m2
Modulus of Elasticity 2040 Mpa
Coefficient of Thermal Expansion 8.1 x 10 -6 K -1
Water Absorption 8%
Thermal Conductivity 0.16 w/moK
Thermal resistance 0.46 m2 - 0k/w
Drying Shrinkage 0.04%
Fire resistance 4 Hrs (for 200 mm wall)
Sound Transmission class rating 44db for 200 mm wall


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

AAC blocks are 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.

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

Cement, Fly ash and Lime are the key ingredients for making Magicrete AAC Blocks. They are cured under steam curing known as Autoclave. Due to sustainable material envelope, these products are certified under green rating system and helps builder to get credit points.

Yes. Magicrete AAC Blocks is an environmental friendly construction material. Magicrete AAC Blocks products conserve and protect earth’s precious natural resources unlike bricks which consume the top soil. Magicrete AAC Blocks is manufactured from fly ash an industrial waste from 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. During the installation of wall, there is virtually no waste generated and this product consumes very less amount of water. During disposal, Magicrete AAC Blocks being a non-toxic product does not pollute the air, land or water. Due to its resource efficiency and material envelope, one can earn good number of credits in green certification process such as LEED, GRIHA etc.

Hand Grips help in better handling and placing of blocks which result in reducing wastage and faster completion of work. Tongue & Groove provides automatic alignment of wall thus eliminating need to check plumb. It also reduces mortar consumption and provides accurate wall with savings of time and money.

1. Range of Products • First AAC Company to provide complete walling solutions • Grade 1 Material, 33% Higher Strength • ISI Marked

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

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.`

Deflection of beam, soil settlement to one side, uneven placing of blocks during construction are some reasons of wall cracking. Structural Movements due to Thermal Expansion or change in moisture content or moisture movement. To overcome this, AAC blocks must be used delayed till equilibrium moisture content. For this purpose AAC blocks must be stored 10-15 days prior to application. Deflection of beam, soil settlement to one side, uneven placing of blocks during construction are other reasons. Cracks are appeared in all type of concrete including clay brick. By using some construction techniques and proper workmanship we can minimize these cracks. Levelling of blocks should be accurate and must be checked using Spirit level preferably of 2 met length. First Course of Blocks should be given sufficient time to set and at least 24 hours must be given. Framed Structure should be given enough time to cure and settle so that any change in structure due to structure movement can be noticed. Control Joint of 10 mm must be given after every 3 meter from bottom to top of wall. Control joint must be filled with some resilient material or backer-rod which are more easily compressed. And seal with caulking. Expansion Joint Ties must be given after every 3rd course and placed between gaps of control joint. Bond beam must be given after 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”. Minimum thickness of bond beam must be taken 3” with concrete cover 15-20 mm on sides. Bond beam must be discontinuous at control joint. Steel rods must be embedded in column 5-6 times of its diameter and fixed using non shrinkable high strength grout. Mortar Mix for filling the bond beam can be taken as Cement: Sand in the ratio 1:4. Purpose of bond beam is to give Stability and Strength to the wall. After every 3rd course, Wall ties must be used between block and Concrete column.

You can use AAC Blocks to construct all type of wall between two columns in framed structure like partition wall, curtain wall, balcony wall, boundary wall.

Water Absorption Test @ 24 hour water immersion is not given in Standard of AAC Blocks IS-2185 Part-3 .it is recommend to test thermal insulating wall elements like AAC for Capillary water absorption . AAC is must superior for capillary water absorption in comparison to conventional brick. Like Red Clay brick, AAC is not recommended to use in foundations and damp environment, so water absorption test is not applicable for AAC.

Due to different reasons blocks may damage during transport or handling at 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 small chipping not larger than 25 mm and shall not be deemed grounds for rejection.

AAC Blocks are in different sizes. In Length 650, 600 mm. In Height 250,240,200 mm and in thickness 75,100,125,150,200,225 mm.

No, AAC blocks are not recommended to use in foundation and where high dampness is there.

Its Water absorption is higher than the Red Clay brick if immersed in water for 24 hours. So in certain applications like foundation, main hole, and concrete water tanks it’s not recommended to use.

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

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

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

You need a Low Capacity compression testing machine of 250 KN and Cutting Machine. High Capacity Machines of 2000-3000 KN are not recommended to use. Follow the testing guidelines as per mentioned in IS-6441 Part-5.

There is difference between immediate density and oven dry density. In normal condition, AAC blocks have certain moisture content so their density is observed higher but for testing purpose, 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

Autoclaved aerated concrete is extremely durable. It does not rot or decay like wood or other organic materials. 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 major 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.

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

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

No. Even though they appear to be similar, they are totally 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 post production stage due to its advanced autoclaved curing process.

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

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

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

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

Compressive Testing Machine (CTM) shall be preferably (250 -500 KN) and should be hydraulically and shall be permit reading of ultimate load with a maximum\m error of (+/-) 2.0 %. Load Rate should be .5 to 2 kgf/ sq. cm in such way that failure occurs with\in 30 seconds Drying Oven

• Specimen shall be over dry at 105+/-5 degree Celsius for 4 hours or could be repeated several times to achieve moisture content of the specimen to be 8% to 12% • Specimen surfaces shall be equal to pressure surface of CTM. • Direction of load shall be perpendicular to the direction of rise of mass during production. • Loading rate should be 0.5 to 2 kgf/sq.cm in such way that failure occurs within 30 seconds.

• 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

• 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) • Of Blocks required of standard size considering cement mortar joint thickness of 10 MM.

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

Regular masons and labour can work on Magicrete AAC Blocks with minimal training. Normal masonry practices, which adheres 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 best practices guide for further explanation.

To get maximum benefit and have smart walls, it is important to use the right tools to get maximum productivity and quality. (You may refer to IS: 6041-1985).

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

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

AAC Blocks reduce the cost of constructions to about 30%. It offers large number of Smart Benefits. Magicrete AAC Blocks should be considered right from design stage to get maximum benefits. One gets better quality wall with Magicrete AAC Blocks. Depending on the cost of resources, life cycle cost can even be lower with Magicrete AAC Blocks when compared with clay bricks or CLC blocks As the load transmitted on RCC from structure decreases 10 to 15%. While at design stage consumption of still will be reducing 10 to 15%.

Magicrete AAC Blocks are very light weight for example, 100 X 200 X 600 mm block will have around 7.2 Kgs of weight in comparison to brick with dimension of 75 X 115 X 230 mm which weighs around 3.57 Kgs.

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

Broken blocks can be easily cut to desired size and if there is rubble, those can be used for filling in sunken areas.

Magicrete AAC Blocks can be used 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 strong thermal insulation, Magicrete AAC Blocks also find use in specialty applications such as fire walls, sound walls, roof tiling etc.

No, in AAC water does not pass through due to discontinuous air pores. While in red clay brick, due to high capillary suction, water penetrates through it.

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.

You are suggested to give control joint after every 3 met interval and the joint has to be filled with resilient material or backer rod and seal with caulking.

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

Magicrete AAC Blocks is available in length of 600mm, height of 200 or 250mm and thicknesses from 75mm to 225mm. For further information, please refer to technical specifications in our website or contact our marketing department.

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

You can contact our marketing department on toll free no 1800-274-5555 or you can also post your enquiry at our website (www.magicrete.in) or send mail at our info id. (info@magicrete.in)

Yes, we provide

Well strapped on craters the blocks are dispatched to various sites in Trucks with necessary capacity.

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) along with dimensional accuracy leading to smart wall and savings of cement. Magicrete AAC Blocks are much easier to work with as it can be sanded and cut easily.

Magicrete AAC Blocks offer immense Smart Benefits when compared to clay bricks. They are lighter in weight (1/3rd weight of clay bricks), have bigger smart size, have much better thermal insulation and are earthquake resistance. Walls built with Magicrete AAC Blocks are dimensionally accurate and help to save time, space, steel, cement, water, labour and above all it helps to save our Mother-Earth. In totality, they are smart choice for smart people.

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