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Coating and insulation effect using emulsified modification bitumen
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DOI：10.1016/j.conbuildmat.2020.119764.png)
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Abstract
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An operation theatre has to maintain a temperature lower than the ambient condition which may result in condensation which leads to fungi problems. This research aims to eradicate the fungi problems by analyzing the effect on coating and insulation using Emulsified Modification Bitumen (EMB). Bitumen with a penetration value of 60/70 will be modified with a recycled base oil at five different ratios and mixed with a cationic emulsifier and deionized water. Next, the EMB will be coated and dried on the top surface of a substrate (drywall) and will be compared with an industrial grade bitumen emulsion. From the analysis, EMB 05 is the best formulated bitumen emulsion with a percentage area removal of more than 65%. The accelerated, natural and cooling aging period are 296 days, 1107 days and 893 days. The total heat transfer (q) at temperatures of 60 degrees C, 45 degrees C, 30 degrees C, and 27 degrees C are 1.14 W, 0.79 W, 0.70 W and 0.65 W, respectively. The results obtained in this study have exposed the capability of EMB in coating and insulation in the operation theatre. Further work is nevertheless required to provide a deeper understanding of the mechanisms involved to facilitate the development of an optimum system applicable to the industry. (C) 2020 Elsevier Ltd. All rights reserved.
Keywords:
Fungi
Emulsified modification bitumen
Coating
Insulation
Recycled base oil
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