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Title: Supplementary Cementitious Material from Recycled CLC and AAC Block Dust
Authors: Sahu, Santosini
Sarkar, Pradip
Davis, Robin
Keywords: AAC
Recycled material
Cement mortar
Compressive strength
Issue Date: Mar-2018
Citation: International Conference on Advances in Construction Materials and Structures (ACMS-2018), IIT Roorkee, Uttarakhand, India, 7 - 8 March, 2018.
Abstract: The prospect of reusing demolished cellular lightweight concrete (CLC) and autoclaved aerated concrete (AAC) block dust as partial replacement of ordinary Portland cement in cement mortar is studied. The microstructural analysis confirms that CLC and AAC block dust have specific pozzolanic properties. The experimental result revealed that up to 20% replacement of CLC or AAC block dust does not reduce the strength of the mortar significantly. Further replacement of CLC or AAC leads to delayed hydration of the mix and porous microstructure which results in the lower compressive strength of mortar. Such use of waste CLC and AAC dust can reduce the environment pollution without compromising the strength significantly
Description: Copyright of this paper belongs to proceedings publisher.
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