Performance of Autoclaved Aerated Concrete Blocks Under Varying Temperatures
Jagadish Vengala1, Shivakumar Mangloor2, Talla Krishna Chaitanya Goud3

1Jagadish Vengala, Associate Professor, Department of Civil Engineering, PVP Siddhartha Institute of Technology, Vijayawada (Andhra Pradesh), India.
2Shivakumar Mangloor, Former Undergraduate Student, Department of Civil Engineering, BMSIT & M, Bangalore (Karnataka), India.
3Talla Krishna Chaitanya Goud, Former Undergraduate Student, Department of Civil Engineering, BMSIT & M, Bangalore (Karnataka), India.
Manuscript received on 03 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript Published on 28 May 2019 | PP: 615-619 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F11120476C219/2019©BEIESP
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Abstract: Autoclaved aerated concrete (AAC) blocks due to their light weight, low density are extensively used as masonry units in construction in spite of these properties there exists a problem of cracking in the AAC units under high temperatures, It is also said that the blocks undergo thermal expansion. The plaster does not get adhered to the surface of units. An effort has been made to determine the strength behavior, bond behavior, crack behavior and thermal behavior of AAC blocks under varying temperatures, mortar ratios and thickness. It is found that there was reduction in the strength and formation of cracks for temperatures above 500 deg C, the bond behavior was found vary with mortar thickness and ratios. Thermal comfort study showed better thermal comfort in comparison with the model with Solid Concrete Block.
Keywords: AAC Blocks, Mortar Ratios, Bond Behavior, Thermal Comfort, Crack Behaviour.
Scope of the Article: Concrete Structures