‘AAC blocks: Eco-friendly substitute to bricks’

AAC blocks are a certified green building material while also being porous, non-toxic, reusable, renewable and recyclable; therefore Sitaram Saboo feels that it can be used for commercial, industrial and residential construction.


Sitaram Saboo

Sitaram Saboo

Autoclaved Aerated Concrete (AAC) Blocks is manufactured using fly ash mixed with cement, lime, water and an aerating agent. The resultant building material, comprising millions of tiny air pores, is set and cut into blocks and panels of varying sizes.
The Blocks are an eco friendly and sustainable construction building material made using non polluting manufacturing process. It makes productive use of recycled industrial waste (fly ash).
The first Advantage of Autoclaved Aerated Concrete is designed for consumers who are environmentally conscious. It helps reduce at least 30 per cent of environmental waste, decrease over 50 per cent of greenhouse radiation and over 60 per cent integrated energy on the surface of brick. Tiny air pores and thermal mass of blocks provide excellent thermal insulation, thus reducing heating and air conditioning costs of a building.
These Blocks is 3-4 times lighter than traditional bricks and is available in custom sizes. Lightweight blocks reduce mass of a structure, thus decreasing the impact of an earthquake on a building. It reduces overall construction cost by 4-5 per cent as it requires less jointing and reduced need for cement and steel.
AAC Blocks gives Variety in size and thickness of blocks helps increase carpet area. It reduces overall construction time by 20 per cent this resulting in labour cost savings as well.
Below are some advantages of AAC Blocks which makes it superior to any other material in its class:
AAC Blocks is equivalent in area to approx. 9 standards clay bricks yet less ¼ the weight, leading to fast laying. Installation of NXTBLOC is 2.5 times faster than of bricks
AAC Blocks wall has an excellent sound Transmission Class (STC) rating of 44db, resulting in the most ideal material for the construction of walls in auditorium, hotels, hospitals, studios, etc.
AAC Blocks has exceptional thermal insulting qualities, keeping warm air in summer and cold air in winters leads to saving in air conditioning load and enhanced energy efficiency
AAC Blocks has an attractive appearance and is readily adaptable to any style of architecture. Almost any design can be achieved with NXTBLOC.
AAC Blocks has an Excellent Earthquake Resistance and Load-bearing Capacity.

AAC Blocks ensures building safety, both as infilling masonry as well as in load-bearing constructions. Despite the light weight of our AAC BLOCKS, its homogeneous structure permits the load of a building balancing in all directions.

AAC Blocks is a non-flammable building material and does not release any toxic gases in the case of a fire.

AAC Blocks due to light weight and low density, overall dead load reduces, thus saving structural steel consumption compared to bricks. Operating cost savings can be realized through reduction in maintenance, energy bills and insurance.

AAC Blocks are not affected by harsh climatic conditions and will not degrade under normal atmospheric conditions.

AAC Blocks due to its impermeable structure it is impossible for insects and rodents to inhabit in them.

Time consumed in building walls decreases due to light weight of the AAC Blocks and its size over conventional clay bricks decreasing lead time as well as installation time.

IMG_20130515_144940High pressure steam curing auto cultivating process gives AAC unmatchable strength to weight ratio, higher then even M 150 Concrete, and far exceeds than building code requirement.
Environmental conservation has also become a key focus area, as buildings account for about 35-40 per cent of energy consumption and also account for about a third of the global greenhouse gas emissions. Growing emphasis on sustainability is thus expected to spur demand for green building materials Like Auto Clave Aerated blocks.
Lesser Carbon footprint on the Environment:
AAC BLOCKS are manufactured by the autoclaving process, which is less energy intensive as compared to the thermal baking process used for manufacturing of Conventional clay bricks results in lower greenhouse gas emission as compared to the conventional clay bricks manufacturing process. Diminishing of Green House Gas emissions provide earning of Carbon Credit in future to the company. The Company has already taken first steps for Sustainable Development by registering company’s AAC project Activity with APX- VCS (Verified Carbon Standard) Registry for issuance of VER’s. “SAVE EARTH FROM GLOBAL WARMING”
Current and estimated future market demand for AAC blocks in India:
China has over 1000 AAC Block manufacturing units whereas India still has just about 50. This clearly shows that scope is unlimited.There is a central government gadget notification mandating government departments and CPWD to use 100% Fly Ash based Bricks in their all constructions directly or through contractors. This factor will help the marketability of this product immensely. Fly Ash policy of the Government also mandates that 20% of Fly ash Generated by a power plant must be given free of cost to SME sector on a priority basis. In INDIA, according to market analysis, currently AAC Blocks manufacturer only produce 20% production as actually demanded in market. They would be highly demandable in near future.
Main growth drivers for increasing demand of AAC blocks:
• Increase in low cost housing.
Shelter is the third basic need in the human life next to food and Clothes. Still majority of the population in our country does not have proper shelter. It is one of the agendas of our Government to provide house to every individual by 2024. Thus there will be huge demand for low cost housing and there cannot be a better material than AAC Blocks to accomplish such dream houses.
• Smart Cities, Industrial Corridors
Government of India has envisioned the concept of building 100 smart new cities in the country. The government looking forward to the smart cities that will have better facilities, better connectivity and better environment. Smart cities will be the highly advanced economic development hub where information technology is the principal infrastructure. The concept of the “Smart City” has been developed as a natural response to the process of urbanization, the economic importance of cities and the increasing demand for sustainable living.
The Government ‘s continued support, focus, and encouragement to the construction Industries for using green building material as given to AAC Blocks an additional impetus for building smart cities and Industrial Corridors.
The Concept of smart cities and Industrial corridors will increase the demand for AAC Blocks as it ensures faster construction compared to the Conventional clay bricks. AAC Blocks are well suited to light weight, fire resistant, energy resistant, weather & earth quake resistant, long lasting, Substantial Eco friendly requirement for construction of Buildings.

Working with Big Group Companies:
AAC Blocks is currently used by Larsen & Turbo, Swaraj Group, Lodha Group, Lotus Group, Agarwal Group, Nirmal Group, Rosa Group, and Regency Group and all other big Companies in Real States and Infrastructure Industry.

(The author is Chairman of Mohit Industries Ltd.)

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