3.11 Webs — The solid sections of the hollow concrete blocks which connect the face shells. DETERMINATION OF WATER ABSORPTION Three full size blocks shall be completely immersed in clean water at room temperature for 24 hours. 2) Smoothing over the block work: Before placing mixed mortar, apply a bonding layer of 1 to 2mm thick AAC Block Adhesive mortar using a trowel pressing down on the block work. Moreover, the AAC blocks come with larger sizes and fewer joints. Scope: The intention of this document is to describe the various steps involved to be carried out to execute the Block works to meet the requirements of Specifications. Scaffolding to be braced adequately. 3. BOM for making a wall with Duralite: Volume of the Wall : Cu. Height of the stack should not be more than one and half meter. Lay AAC blockwork. Mtr: Number of Blocks : Nos. Ensure to read the brickwork construction procedure provided by the client ; Cement mortar ratio should be 1:6 for 9” Brickwork and 1:4 41/2” brickwork ; Mortar thickness should not be more than 10 mm between the courses and sides of the bricks; Ensure you are … Origins. The inner & outer walls are interconnected by means of … 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. The ECO PANEL (AAC) system is an innovative Autoclaved Aerated Concrete light -weight cement-based material, incorporating small uniformly distributed bubbles that result in its unique properties of lightness, high thermal resistance, workability and streng th. AAC Block vs Brick (m²/ worker/ day) Thermal Control Built using Bricks Built using AAC Products 25% less foundation required Save up to 25% of Foundation Cost Brick vs AAC Block 1 2 3 5 Heat insulation 6 times superior than clay brick Note : Building uses approximately 30% less energy for cooling and heating the interior air space. 3.10 ‘Solid Block — A block which has solid material not less than 75 percent of the total volume of-the block calculated from the overall dimensions. AAC Blocks is lightweight and compare to the red bricks AAC blocks are three times lighter. FEATURES AND BENEFITS Formulated to comply with Autoclaved Aerated Concrete is a Lightweight, Load-bearing, High-insulating, Durable building product, which is produced in a wide range of sizes and strengths. Restraint Posts:-All restraint post around windows shall be provided as per approved shop drawings, during the AAC block work construction. The width of AAC Block joints to be approximately 3mm with the mortars (as per required by the engineer). Speed Dry Mix - AAC BLOCK JOINTING MORTAR is a high quality Premixed mortar suitable for fixing AAC/ALC/CLC blocks. Laying of AAC Block masonry shall be as per IS 6041 of 1985 and IS 1905 of 1987. 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. Wo AAC Block Prices . WORK PROCEDURE FOR AAC BLOCK MASONRY Work Procedure No. RFIA will be raised to the Engineer to check the work before concreting of tiffener/bonding columns. Thin joint concrete common block work shall be manufactured in accordance with BS EN 771: Part 3 and tested in accordance with BS EN 772. 3.2.1 The nominal dimensions of the concrete block shall be as follows: I,ength 400,5000r600mm Height 200,250 or 360 mm Width 100,150,200 or 250 mm In addition, block shall be manufactured in half lengths of 200,250 or 300 mm to corresponcl to the full lengths. 3.0 Materials 3.1 AAC Concrete blocks (light weight) … Presentation on how to do AAC Blockwork 1. However, labor costs for AAC can be lower because its lighter weight makes it easier to handle and install. The whole-block specimen with top and bottom gauges was shown to be inadequate. Follow the checkout process, ensuring you attach your company logo in a high resolution JPEG format for inclusion in the online safe work method statement/job safety analysis. Foundation.All concrete block walls must rest on a sturdy foundation of poured concrete. Method Statement for Block Works in a Quality Management System are given below: 1. As the AAC block is very easy to handle, manipulate and use ordinary tools for cutting the wood such as the drill, band saws, etc. Fly-ash – 59%. The Autoclaved Aerated Concrete (AAC) material was developed in 1924 in Sweden. This mortar does not require any curing post application. Safety and Protection Blocks shall be stacked properly near the place of work (Do not stack too large quantity near the work area thereby causing safety hazard). PROCEDURE Constructed in two leaves- inner & outer with a hollow space in between them. Autoclaved Aerated Concrete (AAC) is a lightweight, concrete-like material with many small, closed internal voids. It is a specially formulated mortar that replaces conventional site mixed Cement - Sand mortar. Autoclaved aerated concrete (AAC) is a lightweight, precast, foam concrete building material suitable for producing concrete masonry unit (CMU) like blocks. Cement (usually OPC grade 53) -33%. Dry density of AAC block varies from 451 kg/m 3 to 1000 kg/m 3. Typical block work details will be resubmitted for the Engineer approval. 2.0 Scope This work procedure covers AAC masonry work to be executed in the substructures/super structures of different buildings as specified in the approved drawings. Mtr: Area of the Wall : Sq. Autoclaved Aerated Concrete is an eco-friendly and certified green building material which is lightweight, load-bearing, high-insulating, durable building blocks and 3 times lighter when compared to red bricks. 3) As Adhesive to install tiles: Working Guidelines for AAC Blocks. The placed mixed mortar on the block work in 3mm (As per required by consultant or Engineer) using trowel and place the next layer of blocks on the mortar. 4. The low dry density of AAC blocks reduce the load on the foundation and other structural components in a structure leading to 55% reduction in weight of walls. During the several phases of this study, some care was taken to improve the procedure. Add the safe work method statement, job safety analysis or safe operating procedure and any additional swms's, jsa's or sop's you require to the shopping cart. How to Do AAC Blockwork 3. 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, […] The nominal dimensions of the units are so designed that taking Article shared by. Because of reduction in self-weight, AAC block construction attracts less earthquake load. • They are easy to install and can complete the construction procedure in a shorter span in case of scarcity of labour and in the usage of mortars. AAC typically weighs one-sixth to one-third as much as conventional concrete, and is … ECO PANEL (AAC) are also steel reinforced AAC … AAC blocks need to be tested in a certified lab before you construct a house. 2. This pictuorial guide line easy to understand and you will get whole idea about its working. Application Procedure. Presenting 2. Although AAC blocks are porous, the pores are not interconnected so the water absorption is relatively less as compared to clay bricks. Manufacturing Process of AAC Block. : WORK PROJECT: Page 1 of 6 1.0 Objective To provide general instructions for AAC Block masonry works at site. AAC Block laying process is almost similar to brick masonry only a few differences are there . The blocks shall then be weighted in kilograms to the nearest 10 gm. Bond beams should be placed at the top of the wall and we can use it for heavy-duty fixture attachment. • Aerocon block is extremely light, just one-third the weight of clay bricks or one-fourth the density of R.C.C. We are the only Autoclaved Aerated Concrete (AAC) provider that manufactures their product in the United States! 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