AAC is well suited for high-rise buildings and those with high-temperature variations. Cost. Increase the chance of survival during seismic activity, Lower Environmental Impact (Use of fly ash). The low density is achieved by the formation The concrete so formed has a high density and of air voids to produce a cellular structure. In the factory where it is produced, the concrete is molded and cut into precisely dimensioned masonry blocks or formed as larger planks and panels. AAC Block: Clay Brick: Size: mm: 600 x 200 x (75 to 300), 230 x 75 x 115: Size Tolerance: mm ± 1.5 ± 05 to 15: Compressive Strength: N/mm 2: 3 – 4.5 (IS 2185 part 3) 2.5 to 3.5: Normal Dry Density: Kg / m 3: 550 – 650: 1800: Sound Reduction Index: Db: 45 for 200 mm Thick Wall: 50 for 230 mm Thick Wall: Fire Resistance: Hrs. The Sound Transmission Class (STC) rating of the AAC blocks up to 45 db. It is produced with a nominal face dimension of 600mm x 200mm and requires 8.33 pieces of blocks per square metre for wall construction. Sound proof The porous structure of the AAC blocks results into enhanced sound absorption. The specifications of AAC blocks contains General Size,Thickness Minimum, Compressive Strength, Minimum Dry density, Thermal Resistance, Allowable Shear Stress, Sound Absorption, Fire Resistance, Thermal Conductivity, Drying Shrinkage etc. AAC blocks are precast, lightweight autoclaved aerated concrete and is a concrete building material which is used for producing concrete masonry units like blocks & under heat and pressure, AAC products are cured and composed of quartz sand, lime, water, cement, aluminum powder and … Cellular lightweight concrete: - Foam concrete is a mixture of cement, fly ash, sand, water and foaming agent. 1.1 This specification covers autoclaved aerated concrete (AAC), a cementitious product based on calcium silicate hydrates in which low density is attained by the inclusion of an agent resulting in macroscopic voids, and in which curing is carried out using high-pressure steam. 2. Block sizes are equivalent to 9 conventional bricks (600x250mm). AAC block is a special type of concrete block made up of fine aggregates, Portland cement, water, and another expansion agent (Aluminum powder). specification for concrete masonry units part 3 autoclaved cellular (aerated ) concrete blocks ( first revision ) first reprint december 1989 udc 693.5:692,327.332-437 i . 50kg of AAC Block Adhesive thin bed morta r with Approx. Standard size of AAC block & price in india AAC block size in india:- AAC Block size in India are regular size is 600 mm × 200 mm × 100 mm and in inches is 24″ × 8″ × 4″ (length × height × width). Thin-bed or Thin-joint mortar is applied … Continue reading "AAC Lightweight Block" Product Specification of LeichtBric regular block. Reduces a dead load of building on the foundation. Technical Specification of Autoclaved Aerated Concrete (AAC) Block Know the Technical Specification of AAC Block like Size, Compressive Strength, Thickness, Dry Density, Sound Absorption, Thermal Resistance, Heat Transmission and Drying Shrinkage etc. In adding to this, owing to their premium quality, lightweight, user-friendly and perfect size, these product ranges are highly appreciated among our patrons. As a result, the concrete gets expand five times its original volume. Used in commercial, industrial and residential applications. The thickness ranges from 50 ~ 400mm. C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete. AAC has a very porous structure which is characterized by "macro" pores. Sound Proof: AAC blocks have been an ideal material for the construction of walls in the auditorium, hotels, hospitals, studios, etc. I hope this article on “AAC blocks specifications” remains helpful for you. Copyright © 2013 Eco Green. 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Let us start from the introduction of AAC blocks. After mixing, this concrete is poured into the mould of standard size. The size of the AAC block is generally large which leads to faster masonry work. All rights reserved. It has a density of 600kg/m3 and is particularly lightweight. Increases workability, allows accurate cutting, Termite resistant (does not affected by termite like in timber), Earthquake resistant and design flexibility. The thickness ranges from 50 ~ 400mm. Such a process is called aeration. Starken Standard Blocks offer a fast, convenient and versatile solution for most walling requirements. 3. The temperature of autoclave has reached about 190° Celsius and pressure about 8 bars to 12 bars. Then, curing is done and removed AAC block is ready for use in the construction site. Macro pores are small air bubbles evenly distributed throughout the material. AAC Block. Serial No Dimension of AAC Blocks(L X H X B) Cubic Meter of a AAC Block No.of AAC Blocks in 1 Cubic Meter Weight of a AAC Block; 1: 600*200*075 MM : 0.00900 Product Specification. Internal wall thickness is 110mm with a mass of 10.5 kg / block. List given hereunder is not to be considered as conclusive and is for reference and guidance only. AAC LIGHTWEIGHT BLOCK The Lightweight Block commonly known as AAC is about 1/5 lighter than concrete in volume. Then, the hydrogen gas escape by leaving voids in between concrete, and this mould is removed and cut into small pieces (Waste during cut can be recycled). Thickness : 100mm, 125mm, 150mm, 200mm, 225mm & 300mm : Shape : Rectangular : Brick/Block Color : Gray : Size (Inches) 24 x 8 x 4 : Material : Cement : Application : Industrial and Civil Constructions : Product Description. Follow ANSI Specification AN-3.8 ³Requirements for Expansion Joints ´ or TCA Detail EJ171 ³Expansion Joints ´. Fig.1 AAC block 2.2. In absence International Standards shall be followed. Breakage. AAC has passed both the Fire Test and Hose-Stream Test sections of ASTM E119. In this article you will get introduction, composition, manufacturing and AAC blocks specifications. bureau of indian standards manak bhavan, 9 baiiadur shah zafar marc new delhi llulo2 gr 4 march 1985 AAC Blocks. AAC blocks are precast, lightweight autoclaved aerated concrete and is a concrete building material which is used for producing concrete masonry units like blocks & under heat and pressure, AAC products are cured and composed of quartz sand, lime, water, cement, aluminum powder and calcined gypsum. 3. Aluminum powder – 0.07%. 3701 CR. significantly reduced heating and cooling cost. When the foaming agent is diluted with water and air, further it is mixed into the cement slurry. It is produced with a nominal face dimension of 600mm x 200mm and requires 8.33 pieces of blocks per square metre for wall construction. AAC block is alternate materials for building materials that have similar properties as wood. First a fall, autoclaved aerated concrete is produced by mixing silica or sand or fly ash with cement, lime, water, and expansion agents such as aluminum powder. AAC or autoclaved aerated concrete blocks are lightweight, precast green building materials used in residential, commercial, and industrial construction.This type of concrete contains 80 percent air. Manufacturing Process of AAC Block. Cement (usually OPC grade 53) -33%. Contact Info. Therefore, absorption of water into the AAC material is minimal. 30% reduction in air-conditioned load, Sand/Flyash used around 60 - 70 % which reacts with Lime & Cement to form AAC, Soil is used which contains many inorganic impurities like sulphates etc. 4. What Is AAC Block? Thickness : 100mm, 125mm, 150mm, 200mm, 225mm & 300mm : Shape : Rectangular : Brick/Block Color : Gray : Size (Inches) 24 x 8 x 4 : Material : Cement : Application : Industrial and Civil Constructions : Product Description. AAC was developed in 1924 by a Swedish architect, who was looking for alternate building material with properties similar to that of wood – good thermal insulation, […] 1 AAC Block size = 6 * brick size 1 AAC Block weight = 1/2 of aggregate block weight 2. Thin-bed or Thin-joint mortar is applied at a thickness of 2 ~ 3 to the entire area of the joint surface using a notched trowel to … Thus, AAC blocks have … AAC material conforms to ASTM C1693, and AAC masonry blocks are available in a variety of sizes. Then, pass these pieces into the autoclave. Manufacturer of AAC Block - Autoclaved Aerated Concrete Block, Rectangular AAC Block, Infitech AAC Blocks and 4 Inch AAC Block offered by Infitech Group, Pune, Maharashtra. Speedy construction due to its big size, light weight & ease to cut in any size or shape, All kind of fitting and chasing possible, More due to less thickness of walling material, Approx. Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression.Designed to be the successor of the MP3 format, AAC generally achieves higher sound quality than MP3 at the same bit rate.. AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications. AAC Blocks are generically lightweight due to the aeration process in the concrete during production allowing it to achieve a density of 480kg/m 3. Basic AAC block in the standard size of 8 x 8 x 24 inches costs about $2.20 to $2.50 per square foot as of July 2018, slightly more than standard concrete block, which costs about $2.00 per square foot. Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression.Designed to be the successor of the MP3 format, AAC generally achieves higher sound quality than MP3 at the same bit rate.. AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications.