COST EFFECTIVE BUILDING CONSTRUCTION USING AAC BLOCKS

This research paper investigates the cost-effectiveness of using Autoclaved Aerated Concrete (AAC) blocks as an alternative to traditional building materials such as red bricks. The study reviews the properties of AAC blocks in terms of their low density, porosity and lower water absorption. The research presents a cost comparison between AAC blocks and red bricks for a multi-storeyed structure. This comparison is carried out for a G+6 residential building wherein the quantities of steel and concrete are calculated after analysing the structure using STAAD Pro. The paper also presents a comparison between the physical properties of AAC blocks and red bricks. AAC blocks prove beneficial in a number of ways as they reduce the dead load acting on the structure as a result of which the sections of corresponding beams and columns are reduced. Moreover, the production process of these blocks is eco-friendly. The use of AAC blocks reduces on-site losses and these blocks can be recycled unlike most other building materials. The expenses incurred on the quantities of concrete, steel and other materials, labour, transport, etc. are reduced. This reduction in cost for the building under consideration is about 16 – 18% which amounts to approximately Rs 21.5 lakhs