Autoclaved Aerated Concrete: A Sustainable Alternate of Clay Brick Masonry in Form of Light Weight Concrete

Parth Desani, S.S.A.S.I.T, Surat, Gujarat, India; Mansi Soni ,S.S.A.S.I.T, Surat, Gujarat,India; Nidhi Gandhi ,S.S.A.S.I.T, Surat, Gujarat,India; Vivek Mishra ,S.S.A.S.I.T, Surat, Gujarat,India

Autoclaved Aerated concrete, AAC, lightweight concrete, heat insulation, sound insulation, fire resistance, reduced dead weight

This type of lightweight concrete has no coarse aggregates in its mixture, and it can be mentioned that aerated lightweight concrete is the concrete mortar which is aerated with gas injection and also can be aerated by using air entraining agent. Aerating concrete by using air entraining agents is more practical in production of LWC. Fine aggregates that can be used to produce aerated concrete are known to be silica sand, quartzite sand, lime and fly ash. Considering methods of curing, aerated concrete can be categorized into two main groups which are autoclaved aerated concrete and non-autoclaved aerated concrete. Curing is an important factor affecting mechanical and physical properties of concretes in different categories. According to different reports, AAC can reach higher strength values with less drying shrinkage when it is compared to non-autoclaved aerated concrete (NAAC). Therefore, it can be concluded that autoclaving process has beneficial effects on strength development and also on shrinkage of aerated concrete. Autoclaved Aerated concrete (AAC) has many benefits for structures such as heat insulation, sound insulation, fire and mould resistance, reduced dead weight and many more. AAC products include blocks, wall panels, floor and roof panels, and lintels. Besides insulating capability, one of AAC's advantages in construction is its quick and easy installation since the material can be routed, sanded and cut to size on site using standard carbon steel band saws, hand saws and drills.
    [1] Autoclaved Aerated Concrete (Aac) Block, Turn Key Manufacturing Plant for Sudan. [2] Temporary Structures, Department of Construction Management Winter Quarter 2007, University of Washington. [3] Autoclaved Aerated Concrete - Fire Safety, Technology Brief, Resource Information from The International Masonry Institute. [4] Autoclaved Areated Concrete as A Holistic Building System, By Angelo Coduto, Michael Donough, Aia, Ncarb. [5] Humidity Intrusion Effects on Properties of Autoclaved Aerated Concrete, By SasanSomi, Master of Science in Civil Engineering, Eastern Mediterranean University, November 2011, Gazimağusa, North Cyprus.
Paper ID: GRDCF001055
Published in: Conference : Recent Advances in Civil Engineering for Global Sustainability (RACEGS-2016)
Page(s): 436 - 441