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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.9
- 수록면
- 241 - 246 (6page)
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초록· 키워드
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This paper discusses the influence of organic matter contained in aggregate on the emission characteristic of ammonia (NH₃) from cement mortar. NH₃ can be released to indoor-outdoor environment through diffusion in mortar (or concrete) and have resulted in the increasing air pollution, and especially well known as a harmful gas for the human body. The concentration of NH₃ released from cement concrete was then compared to the contents of organic matter contained in the aggregate. The result indicates that the contents of organic matter in the aggregate significantly differ with types of aggregate from different areas of production. The organic matter becomes organic nitrogen through the process of microbial breakdown for a certain period and pure ammonium ion (NH₄+) is produced from the organic nitrogen. The NH₄ + was reacted with alkaline elements in the cement and released as NH₃ from cement concrete through a volatile process. The released NH₃ was proportional to the contents of NH₄+ adsorbed in the aggregate from different areas of production and the concentrations of NH₃ emission from cement mortar according to the aggregate differ by more than 4 times.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results & Discussion
4. Conclusions
References
참고문헌 (21)
참고문헌 신청
[학술지(정기간행물)] - Lopez-Aparicio S / 2011 / Relationship of indoor and outdoor air pollutants in a naturally ventilated historical building envelope / Build. Environ 46 : 1460 ~ 1468
[학술지(정기간행물)] - Mitchell CS / 2007 / Current state of the science: Health effects and indoor environmental quality / Environ. Health Perspect 115 : 958 ~ 964
[학술지(정기간행물)] - Tomoto T / 2009 / Identification of the sources of organic compounds that decalcity cement concrete and generate alcohols and ammonia gases / Build. Environ 44 : 2000 ~
[학술대회논문] - Liang B / 2001 / Indoor air pollution-ammonia pollution / Proceeding of international workshop on indoor air quality State environmental protection administration of China : 86 ~ 90
[인터넷자원] - The Engineering ToolBox / / Ammonia-NH3-concentration in air and health symptoms
[학술지(정기간행물)] - Mitchell CS / 2007 / Current state of the science: Health effects and indoor environmental quality / Environ. Health Perspect 115 : 958 ~ 964
[학술지(정기간행물)] - Tomoto T / 2009 / Identification of the sources of organic compounds that decalcity cement concrete and generate alcohols and ammonia gases / Build. Environ 44 : 2000 ~
[학술대회논문] - Liang B / 2001 / Indoor air pollution-ammonia pollution / Proceeding of international workshop on indoor air quality State environmental protection administration of China : 86 ~ 90
[인터넷자원] - The Engineering ToolBox / / Ammonia-NH3-concentration in air and health symptoms
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UCI(KEPA) : I410-ECN-0101-2017-539-001842812