Properties of Agro-Industrial Aerated Concrete as Potential Thermal Insulation for Building

Autor: Aminudin Eeydzah, Md Din Mohd Fadhil, Hussin Mohd Warid, Abdullah Abd Halid, Iwao Kenzo, Ichikawa Yo
Jazyk: English<br />French
Rok vydání: 2016
Předmět:
Zdroj: MATEC Web of Conferences, Vol 47, p 04020 (2016)
Druh dokumentu: article
ISSN: 2261-236X
DOI: 10.1051/matecconf/20164704020
Popis: The present paper is aiming to provide an actual state of the development of non autoclaved Agro-Industrial aerated concrete by using multiple ashes as improvement of thermal behavior for building. The feasibility of Agro-Industrial wastes as lightweight concrete by utilizing the Palm Oil Fuel Ash (POFA) as binder replacement and bottom ash as fine aggregate was investigated in this paper. Portland cement, bottom ash, aluminum powder and lime (Ca(OH)2) were used in this study. The POFA was used to replace Portland cement and Hydrated Lime at 0%, 5%, 10% and 15% by weight and aluminum powder was added at 0.75% dry weight in order to form bubbles. The compressive strength, water absorption, porosity and the thermal conductivity test were carried out after the concrete were water cured for 7 days and later being exposed to the air and water until 28days. The results show that the 20% replacements give the optimum strength of 7.143MPa and 30% give the best thermal conductivity with 0.48W/mK. Hence, this study aim, was to develop an agro-industrial aerated concrete good in insulation but having an optimum strength. Hence, it has been found that the more the percentage of POFA is added the lower the thermal conductivity since the pore structure is increasing and by the optimization done, 30% replacement has been chosen as the best mix design for Agro-Industrial Aerated Concrete.
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