SHREESHAKTHI AAC BLOCKS
Best AAC Blocks
ShreeShakthi Aerated Autoclaved Concrete (AAC Blocks) is an eco-friendly material used to produce lightweight, heat-resistant, and durable building blocks. Developed in the 1920s by the Swedish, it is three times lighter than the ancient red bricks. AAC Blocks majorly consist of AIR (60%-85% by volume) and are produced by the method of autoclaving and high pressurised curing of aerated materials. AAC Blocks soon became one of the most used building materials in the construction industry around the world. These blocks are manufactured using Aluminium powder, fly ash, cement, lime and gypsum. The reaction of aluminium with lime, water and silica releases Hydrogen gas resulting in a porous structure of Calcium Silicate Hydrate which is cut and steam cured at high temperature (210 °C) and pressure (12Kg) for 10-12 hours. The resultant AAC blocks have a wide variety of commercial, industrial and residential applications. In comparison with normal clay bricks, AAC blocks stand superior in their properties and cost. Also, our AAC blocks are available in various sizes to meet all construction requirements. In addition to reducing the cost of plastering, these blocks are water-resistant and offer high strength over time. AAC blocks with their cellular structure can be easily cut with a carpenter’s saw, and driving nails can be done easily. With AAC blocks, weight reduction is the primary benefit for structural reasons, saving steel reinforcement in foundation up to 25% resulting in substantial savings of materials up to 10% thereby reducing the construction cost.
Light-weight
Usuage of these lightweight cement bricks also known as AAC blocks reduces the overall dead weight of a structure, thereby allowing the construction of firmer and taller buildings.
Cost Saving
Being 8 times the size of clay bricks, AAC wall construction requires 1/3rd of jointing mortar, saving up to 66% of the cost. Significantly saving up to 25% steel and 10% concrete.
Faster Construction
AAC Blocks require a lesser number of joints, which results in saving time, jointing material and labour.
Workability
AAC blocks can be easily carved, drilled, nailed, milled and shaped to fit individual requirements. They are 3-4 times lighter than traditional concrete, which leads to advantages in transportation and material handling.
Versatile
AAC Blocks ensure a smooth and accurate masonry profile and are also used for renovation/alteration purposes.
BENEFITS
Earthquake Resistance
The usage of AAC blocks reduces the overall dead weight of a structure. This reduces the impact of the earthquake on a building making AAC Blocks earthquake resistant.
Fire Resistance
Non-combustible nature of AAC blocks provides fire resistance depending on the thickness up to 16000 degree centigrade (°C). This offers fire resistance for about 2-6 hours.
Eco-Friendly
The manufacturing process emits no pollutants nor creates any by-products or toxic wastes. Manufacturing of AAC blocks is done from natural raw materials.
Energy Efficient
AAC Blocks is 100% Green Building Material is LEED R certified buildings. It requires the Least amount of energy and material per m3 of product. AAC uses fly ash up to 65% of its weight making it resource efficient.
Longer Durability
AAC blocks have longer life, high compressive strength and resistant to all weather conditions compared to other construction materials. These blocks are proven to be water damage free. Leading to Increased value for investment.
Water & Moisture Resistance
AAC structure doesn't allow capillary action that is impervious to water. AAC possesses excellent structural integrity, and moisture resistance, whether caused by wind, rain or standing water.
Sound Insulation
AAC Blocks are concrete materials, providing a sound insulation value of 7dB greater than another building materials ensuring peaceful living conditions. Therefore ensures peaceful living conditions
Pest Resistance
AAC Blocks are made up of the inorganic materials in their constitution which in turn helps in preventing or avoiding the growth of termites, pests and molds. This protects the building from the damages or losses caused by pests/termites/molds.
Non Toxic
AAC blocks do not cause any harm to the environment and human health as they do not contain toxic material nor does it emit toxic gases during production. The manufacturing is completely environment friendly.
Labour Cost Reduction
The speed and ease of overall structure assembly using AAC Blocks minimize labour costs and improve their work efficiency.
Good Finish
The automatic manufacturing process gives AAC exceptional dimensional accuracy and a smooth surface with an outstanding finish to walls.
Thermal insulation
AAC blocks provide well-insulated interiors, keeping out warm air in summers and cold air in winters, thereby reducing air conditioning costs by 30%.
PARAMETER | AAC BLOCKS | CLAY BRICK |
---|---|---|
Size | (600mmx200mmx100-300mm) | (230mmx115mmx75mm) |
Density | 550-650kg/Cum | 40-75-kg/cm3 |
Compressive strength | Varies between 3.5 to 4.5 N/mm2 | Varies between 40-75-kg/cm3 |
Precision in Size | /-1mm | /-5mm |
Sound Insulation | 37-49 dB | Normal |
Fire Resistance | 4-6 Hours depending on thickness | 2 hours |
Water Absorption | Should not be more than 10% of its weight (If the block or brick absorbs more water than the above specified limit, it causes adverse effect on the strength and durability) | Should not be more than 20% of its weight |
Thermal Conductivity | It transfers heat between 0.21 - 0.42 W/mk | It transfers heat between 6 - 1.0 W/mk |
Moisture Resistance | Better than the red brick | Average |
Savings in plaster | Overall 35% cut down in the cost of plastering | |
Speed of constrution | More elevated as the sizes of blocks are big and the weight is less. | Comparatively lower |
Environment Impact | Made up of ashes, thus does no soil is consumed | Around 3.2 kgs of fertile soil is used to produce one brick |
Maintenance | The superior properties of AAC blocks reduce the maintenance cost | Very High |
Water usage during manufacturing | Low, only used for auto-claving | High, needs curing before use |